Brother HL-5240, HL-5240L, HL-5250DN series, HL-5270DN, HL-5280DW Service Manual

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Brother HL-5240, HL-5240L, HL-5250DN series, HL-5270DN, HL-5280DW Service Manual | Manualzz

Brother Laser Printer

SERVICE MANUAL

MODEL:

HL-5240/5240L/5250DN/

5270DN/5280DW

 

Read this manual thoroughly before maintenance work.

Keep this manual in a convenient place for quick and easy reference at all times.

September 2005

SM-PRN057

(17)

Confidential

 

© Copyright Brother Industries, Ltd. 2005

Compilation and Publication:

This manual has been complied and published, under the supervision of Brother Industries

Ltd., covering the latest product descriptions and specifications. The contents of this manual and the specifications of this product are subject to change without notice. Brother reserves the right to make changes without notice in the specifications and materials contained herein and shall not be responsible for any damages (including consequential) caused by reliance on the materials presented, including but not limited to typographical and other errors relating to the publication. This product is designed for use in a professional environment.

Trademarks:

The Brother logo is a registered trademark of Brother Industries, Ltd.

Apple, the Apple Logo, Macintosh and TrueType are registered trademarks of Apple

Computer, Inc in the United States and other countries.

Epson is a registered trademark and FX-80 and FX-850 are trademarks of Seiko Epson

Corporation.

Hewlett Packard is a registered trademark and HP LaserJet 6P, 6L, 5P, 5L, 4, 4L 4P, III, IIIP,

II, and IIP are trademarks of Hewlett-Packard Company.

IBM, IBM PC, and Proprinter are registered trademarks of International Business Machines

Corporation.

Microsoft, MS-DOS, Windows and Windows NT are registered trademarks of Microsoft

Corporation in the U.S. and other countries.

ENERGY STAR is a U.S. registered mark.

Citrix and MetaFrame are registered trademarks of Citrix Systems, Inc. in the United State.

SuSE is a registered trademark of SuSE Linux AG.

RED HAT is a registered trademark of Red Hat. Inc.

Mandrake is a registered trademark of Mandrake Soft SA.

PostScript and PostScript 3 are trademarks of Adobe Systems Incorporated.

Intel, Intel Xeon and Pentium are trademarks or registered trademarks of Intel Corporation.

AMD, AMD Athlon, AMD Opeteron and combinations thereof, are trademarks of Advanced

Micro Devices, Inc.

Java and all Java-based trademarks and logos are trademarks or registered trademarks of

Sun Microsystems, Inc. in the United States and other countries.

All other terms and brand and product names mentioned in this Service Manual are registered trademarks of their respective companies.

Confidential

 

PREFACE

This service manual contains basic information required for after-sales service of the laser printer (hereinafter referred to as "this machine" or "the printer"). This information is vital to the service technician to maintain the high printing quality and performance of the printer.

This service manual covers the

HL-5240/5250DN/5270DN/5280DW

printers.

This manual consists of the following chapters:

CHAPTER 1: GENERAL

Features, specifications, etc.

CHAPTER 2: THEORY OF OPERATION

Basic operation of the mechanical system, the electrical system and the electrical circuits.

CHAPTER 3: PERIODIC MAINTENANCE

Periodical replacement parts, consumable parts, etc.

CHAPTER 4: TROUBLESHOOTING

Reference values and adjustments, troubleshooting image defects, troubleshooting malfunctions, etc.

CHAPTER 5: DISASSEMBLY AND RE-ASSEMBLY

Procedures for disassembling and re-assembling the mechanical system.

CHAPTER 6: ADJUSTMENTS AND UPDATING OF SETTING, REQUIRED AFTER

PARTS REPLACEMENT

CHAPTER 7: SERVICE SUPPORT SOFTWARE

Test print mode and Service menu mode, etc.

APPENDIX:

Diagrams etc…

Information in this manual is subject to change due to improvement or redesign of the product. All relevant information in such cases will be supplied in service information bulletins (Technical Information).

A thorough understanding of this printer, based on information in this service manual and service information bulletins, is required for maintaining its print quality performance and for improving the practical ability to find the cause of problems. i

Confidential

 

TABLE OF CONTENTS

REGULATION.............................................................................................viii

SAFETY INFORMATION...............................................................................x

CHAPTER 1 GENERAL .......................................................................... 1-1

1. FEATURES ...............................................................................................................1-1

2. PARTS NAMES AND FUNCTIONS ..........................................................................1-3

2.1 Overview .......................................................................................................................... 1-3

2.2 Control Panel ................................................................................................................... 1-5

3. SPECIFICATIONS.....................................................................................................1-7

3.1 Printing ............................................................................................................................. 1-7

3.2 Functions.......................................................................................................................... 1-8

3.6 Paper.............................................................................................................................. 1-14

3.6.1 Paper handling .................................................................................................................. 1-14

3.7 Printable Area ................................................................................................................ 1-17

3.8 Print Speeds with Various Settings................................................................................ 1-21

3.9 Toner Cartridge Weight Information .............................................................................. 1-22

4. SERIAL NO. DESCRIPTIONS.................................................................................1-23

CHAPTER 2 THEORY OF OPERATION ................................................ 2-1

1. OVERALL ..................................................................................................................2-1

2. ELECTRONICS .........................................................................................................2-2

2.2 Main PCB Block Diagram ................................................................................................ 2-3

2.3 Main PCB ......................................................................................................................... 2-4

2.3.1 CPU .................................................................................................................................... 2-4

2.3.5 ROM.................................................................................................................................... 2-4

2.3.6 SDRAM ............................................................................................................................... 2-4

2.3.7 Optional RAM...................................................................................................................... 2-4

2.3.8 EEPROM ............................................................................................................................ 2-4

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

2.3.10 Panel I/O ............................................................................................................................. 2-5

2.3.11 Video I/O ............................................................................................................................. 2-5

2.3.12 Power supply....................................................................................................................... 2-5

2.3.13 Wireless LAN ...................................................................................................................... 2-5

3. MECHANICS .............................................................................................................2-7

3.1 Overview of Printing Mechanism ..................................................................................... 2-7

3.2 Overview of Gear ............................................................................................................. 2-8

3.3.1 Paper supply ....................................................................................................................... 2-9

3.3.3 Drum unit .......................................................................................................................... 2-11

3.3.4 Developing ........................................................................................................................ 2-12

3.3.5 Fixing stage....................................................................................................................... 2-13

3.3.6 Paper eject........................................................................................................................ 2-14

3.3.8 Paper feeding from the MP tray ........................................................................................ 2-16

3.3.9 LT tray............................................................................................................................... 2-16

3.4.2 New toner detection mechanism ....................................................................................... 2-19

3.4.3 Counter reset during indication of “Toner Life End”........................................................... 2-20

3.5.1 Charging ........................................................................................................................... 2-21

3.5.2 Exposure stage ................................................................................................................. 2-21

3.5.3 Transfer............................................................................................................................. 2-22

3.6 Sensors .......................................................................................................................... 2-23

3.7 Heat Control of Fuser Unit ............................................................................................. 2-24

CHAPTER 3 PERIODIC MAINTENANCE............................................... 3-1

1.2 Drum Unit ......................................................................................................................... 3-7

2. PERIODICAL REPLACEMENT PARTS ..................................................................3-12

2.2 Procedures to Replace Periodical Replacement Parts.................................................. 3-13

2.2.2 Paper feeding kit for tray 1, 2, 3 ........................................................................................ 3-35

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3.1 Cleaning the Inside of the Printer .................................................................................. 3-49

3.2 Cleaning the Corona Wire.............................................................................................. 3-52

CHAPTER 4 TROUBLESHOOTING ....................................................... 4-1

1. INTRODUCTION .......................................................................................................4-1

1.1 Initial Check...................................................................................................................... 4-1

1.2 Warnings for Maintenance Work ..................................................................................... 4-2

2.1 Operator Calls.................................................................................................................. 4-4

2.2 Service Calls .................................................................................................................... 4-8

2.2.2 Service calls for HL-5270DN/5280DW .............................................................................. 4-10

2.3 Error Message in the Status Monitor ............................................................................. 4-12

3.2 Paper Jams .................................................................................................................... 4-16

3.2.1 Paper jams and how to clear them for HL-5240/5250DN .................................................. 4-16

3.2.2 Paper jams and how to clear them for HL-5270DN/5280DW ........................................... 4-18

3.2.3 Causes & countermeasures.............................................................................................. 4-26

5. MALFUNCTIONS ....................................................................................................4-32

6.4 Location of Grounding Contacts .................................................................................... 4-57

6.4.1 Drum unit .......................................................................................................................... 4-57

8.1 Installation Problem ....................................................................................................... 4-60

8.2 Printing Problem............................................................................................................. 4-63

8.3 Protocol-Specific Troubleshooting ................................................................................. 4-65

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY ............................. 5-1

2. PACKING ..................................................................................................................5-2

3. SCREW TORQUE LIST ............................................................................................5-3

5. LUBRICATION ........................................................................................................5-13

7.2 Drum/Toner ASSY ......................................................................................................... 5-15

7.4 Paper Tray ..................................................................................................................... 5-16

7.6 DX Blank Cover (For HL-5240)...................................................................................... 5-20

7.8 Fuser Unit....................................................................................................................... 5-23

7.10 MP Tray Cover ASSY/Process Cover ASSY................................................................. 5-26

7.11 Access Cover/ Side Cover L .......................................................................................... 5-28

7.12 Main PCB ....................................................................................................................... 5-29

7.13 Gear Plate Calking ASSY AL/Develop Joint/Main Motor ASSY AL............................... 5-30

7.14 Main Shield Plate ASSY ................................................................................................ 5-32

7.15 Relay Rear PCB ASSY/Connector ................................................................................ 5-34

7.16 Relay Front PCB ASSY ................................................................................................. 5-36

7.17 MP Solenoid ASSY ........................................................................................................ 5-37

7.18 Drive Release Link......................................................................................................... 5-38

7.19 T1 Solenoid ASSY ......................................................................................................... 5-39

7.20 Toner Sensor PCB......................................................................................................... 5-39

7.21 Register Solenoid ASSY ................................................................................................ 5-40

7.22 Ejector Solenoid ASSY (For HL-5250DN/5270DN/5280DW)........................................ 5-40

7.23 Interlock SW ASSY ........................................................................................................ 5-41

7.24 New Toner Actuator ....................................................................................................... 5-41

7.25 Gear 17/20/23 ................................................................................................................ 5-42

7.26 Side Cover R.................................................................................................................. 5-44

7.27-1 Top Cover Printed ASSY (For HL-5240/5250DN) ....................................................... 5-45

7.27-2 Panel PCB ASSY ......................................................................................................... 5-45

7.27-3 SW Key A/B.................................................................................................................. 5-46

7.27-4 Inner Chute/Pinch Roller Holder .................................................................................. 5-47

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7.28-1 Top Cover 2 Printed ASSY (For HL-5270DN/5280DW) .............................................. 5-48

7.28-2 Inner Chute/Pinch Roller Holder .................................................................................. 5-49

7.28-3 Panel PCB ASSY ......................................................................................................... 5-50

7.28-4 SW Key A/B/C/ Set Key Printed ASSY ........................................................................ 5-51

7.28-5 LCD Holder ASSY........................................................................................................ 5-53

7.29 Filter ............................................................................................................................... 5-55

7.30 Laser Unit....................................................................................................................... 5-56

7.31 PS PCB Unit................................................................................................................... 5-57

7.32 High-Voltage PS PCB ASSY ......................................................................................... 5-60

7.33 Toner LED PCB Unit ASSY ........................................................................................... 5-62

7.34 Fan Motor 60 Unit .......................................................................................................... 5-63

7.35 Fan Motor 60 Unit LV..................................................................................................... 5-63

7.36 Frame L.......................................................................................................................... 5-64

7.37 Frame R ......................................................................................................................... 5-64

7.38 MP Unit .......................................................................................................................... 5-65

7.39 Regist Actuator Rear/Regist Actuator Spring ................................................................ 5-70

7.40 Regist Actuator Front/Regist Actuator Spring................................................................ 5-72

7.41 Roller Holder ASSY ....................................................................................................... 5-73

7.42 PE Actuator, Edge Actuator, Edge Actuator Spring ...................................................... 5-74

7.43 PE PG Sensor ASSY ..................................................................................................... 5-76

7.44 Wireless PCB (PCB T60H929.00 ASSY 02) (For HL-5280DW) ................................... 5-77

8. DISASSEMBLY PROCEDURE (LT-5300)...............................................................5-78

8.1 Paper Tray ..................................................................................................................... 5-78

8.7 Connector: 55533-1219 ................................................................................................. 5-85

8.8 Connector: 54702-1219 ................................................................................................. 5-85

8.9 Gear 24LT ...................................................................................................................... 5-86

8.10 Collar 6........................................................................................................................... 5-87

8.11 LT Solenoid ASSY ......................................................................................................... 5-91

8.12 Roller Holder ASSY ....................................................................................................... 5-92

8.13 Edge Actuator Spring..................................................................................................... 5-93

8.14 PE Actuator, Edge Actuator ........................................................................................... 5-94

8.15 LT Sensor PCB ASSY ................................................................................................... 5-95

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS,

REQUIRED AFTER PARTS REPLACEMENT.................. 6-1

1. IF YOU REPLACE THE MAIN PCB ..........................................................................6-1

2. IF YOU REPLACE THE PERIODICAL MAINTENANCE PARTS ............................6-10

CHAPTER 7 SERVICE SUPPORT SOFTWARE.................................... 7-1

1.1 Users Mode...................................................................................................................... 7-1

1.3 Service Mode ................................................................................................................... 7-5

2.1 Professional Menu ......................................................................................................... 7-16

2.3 Service Menu ................................................................................................................. 7-24

3. NVRAM DEFAULT VALUE......................................................................................7-29

APPENDIX

1. MAIN PCB CIRCUIT DIAGRAM ............................................................................... A-1

2. LOW-VOLTAGE POWER SUPPLY PCB CIRCUIT DIAGRAM (100V, 200V).......... A-8

3. HIGH-VOLTAGE POWER SUPPLY PCB CIRCUIT DIAGRAM ............................. A-10

 

4. POINT TO POINT CONNECTION DIAGRAM........................................................ A-11

5. GEAR LAYOUT DRAWING.................................................................................... A-12

6. READMARKS......................................................................................................... A-14

7. LOCATION OF THE FERRITE CORE ................................................................... A-15

8. HL-5240L................................................................................................................ A-18

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C

REGULATION

LASER SAFETY (100 - 120V MODEL ONLY)

This printer is certified as a Class 1 laser product under the U.S. Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation

Control for Health and Safety Act of 1968. This means that the printer does not produce hazardous laser radiation.

Since radiation emitted inside the printer is completely confined within protective housings and external covers, the laser beam cannot escape from the machine during any phase of user operation.

FDA REGULATIONS (100 - 120V MODEL ONLY)

U.S. Food and Drug Administration (FDA) has implemented regulations for laser products manufactured on and after August 2, 1976. Compliance is mandatory for products marketed in the United States. One of the following labels on the back of the printer indicates compliance with the FDA regulations and must be attached to laser products marketed in the United States.

The label for Japanese manufactured products

MANUFACTURED:

Brother Industries, Ltd.,

15-1 Naeshiro-cho Mizuho-ku Nagoya, 467-8561 Japan

This product complies with FDA performance standards for laser products except for deviations pursuant to Laser

Notice No.50, dated July 26, 2001.

The label for Chinese manufactured products

MANUFACTURED:

Brother Corporation (Asia) Ltd. Brother Buji Nan Ling

Factory

Gold Garden Ind., Nan Ling Village, Buji, Rong Gang,

Shenzhen, CHINA

This product complies with FDA performance standards for laser products except for deviations pursuant to Laser

Notice No.50, dated July 26, 2001.

Caution

Use of controls, adjustments or performance of procedures other than those specified in this User’s Guide may result in hazardous radiation exposure. viii

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

IEC 60825 (220-240V MODEL ONLY)

This printer is a Class 1 laser product as defined in IEC 60825 specifications. The label shown below is attached in countries where it is required.

This printer has a laser diode which emits invisible laser radiation in the Laser Unit. The

Laser Unit should not be opened without disconnecting the two connectors connected with the AC power supply and laser unit. Since the variable resistor in the laser unit is adjusted in accordance with the standards, never touch it.

Caution

Use of controls, adjustments or performance of procedures other than those specified in this manual may result in hazardous radiation exposure.

For Finland and Sweden

LUOKAN 1 LASERLAITE

KLASS 1 LASER APPARAT

Varoitus! Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle.

Varning – Om apparaten används på annat sätt än i denna Bruksanvisning specificerats, kan användaren utsättas för osynlig laserstrålning, som överskrider gränsen för laserklass

1.

Internal laser radiation

Maximum radiation power: 5 mW

Wave length: 770 – 810 nm

Laser class: Class 3B ix

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SAFETY INFORMATION

CAUTION FOR LASER PRODUCT (WARNHINWEIS FUR LASER DRUCKER)

CAUTION: When the machine during servicing is operated with the cover open, the regulations of VBG 93 and the performance instructions for VBG 93 are valid.

CAUTION: In case of any trouble with the laser unit, replace the laser unit itself. To prevent direct exposure to the laser beam, do not try to open the enclosure of the laser unit.

ACHTUNG: Im Falle von Störungen der Lasereinheit muß diese ersetzt werden. Das

Gehäuse der Lasereinheit darf nicht geöffnet werden, da sonst

Laserstrahlen austreten können.

<Location of the laser beam window>

ADDITIONAL INFORMATION

When servicing the optical system of the printer, be careful not to place a screwdriver or other reflective object in the path of the laser beam. Be sure to take off any personal accessories such as watches and rings before working on the printer. A reflected beam, though invisible, can permanently damage the eyes.

Since the beam is invisible, the following caution label is attached on the laser unit. x

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

DEFINITIONS OF WARNINGS, CAUTIONS AND NOTES

The following conventions are used in this service manual:

WARNING

Indicates warnings that must be observed to prevent possible personal injury.

!

CAUTION:

Indicates cautions that must be observed to service the printer properly or prevent damage to the printer.

NOTE:

Indicates notes and useful tips to remember when servicing the printer.

**Listed below are the various kinds of “WARNING” messages included in this manual.

WARNING

Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the printer.

WARNING

Some parts inside the printer are extremely hot immediately after the printer is used. When opening the front cover or back cover to access any parts inside the printer, never touch the shaded parts shown in the following figures.

WARNING

If you analyze malfunctions with the power plug inserted into the power outlet, special caution should be exercised even if the power switch is OFF because it is a single pole switch.

WARNING

DO NOT use any type of spray to clean inside or outside of the machine. Doing this may cause a fire or electrical shock.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

CHAPTER 1 GENERAL

1. FEATURES

This printer has the following features.

High Resolution and Fast Print Speed

True 600 x 600 dots, true 300 x 300 dots per inch (dpi), HQ1200 and 1200 x 1200 dpi for graphics with microfine toner and up to 28 pages per minute (ppm) print speed for printing on

A4 size paper, and up to 30 pages per minute (ppm) print speed for Letter- size paper.

Versatile Paper Handling

The printer loads paper automatically from the paper tray. The paper tray can hold A4, letter,

B5 (ISO), B5 (JIS), A5, B6 (ISO), A6, Executive, Folio and Legal* size of paper. You can use a variety of types and sizes of paper when printing from the Multi-purpose tray. Width: 69.9 to

215.9 mm (2.75 to 8.5 in) Length: 116 to 406.4 mm (4.57 to 16 in). A4, Letter, Legal sizes of paper can be held when automatic duplex print. *Legal paper is not available in some regions.

Front Operation

Basic operation of the printer can be controlled from the control panel.

Enhanced Printing Performance and User-Friendly Operation for Windows

The dedicated printer driver for Microsoft

Windows

95/98/Me, Windows

NT 4.0 and

Windows

2000/XP Home Edition/XP Professional/XP Professional x64 Edition are available on the CD-ROM supplied with your printer. You can easily install them into your Windows

 system using our installer program. The driver supports our unique compression mode to enhance printing speed in Windows

applications and allows you to choose various printer settings including toner save mode, custom paper size, sleep mode, gray scale adjustment, resolution, water mark and many layout functions. You can easily setup these print options through the Printer Setup Menu.

Printer Status Monitor with Bi-directional Parallel Interface

The printer driver can monitor the status of your printer using bi-directional parallel communications. IEEE-1284 bi-directional parallel printer cable is recommended.

The printer status monitor program can show the current status of your printer. The animated dialog box appears on your computer screen to show the current printing process when printing. If an error occurs, a dialog box will appear to let you know what to correct. If you have turned on the Interactive Help (Windows only) you can get visual guidance on your PC screen on the actions in the event of certain printer errors. The default setting is OFF.

Quick Print Setup

The Quick Print Setup is a convenient utility to allow you to make changes to frequently used driver settings easily without having to open the printer properties selection box every time. It is launched automatically when this printer driver is selected. You can change the settings by clicking on the icon with the right mouse button. The default setting is OFF.

Enhanced Memory Management

The printer provides its own data compression technology in its printer hardware and the supplied printer driver software, which can automatically compress graphic data and font data efficiently into the printer’s memory. You can avoid memory errors and print most full pages

1200 dpi graphic and text data, including large fonts, with the standard printer memory.

1-1

Confidential

CHAPTER 1 GENERAL

USB Interface (for Windows 98/Me/2000/XP Home Edition/XP Professional/XP

Professional X64 Edition, Mac OS 9.1-9.2/ Mac OS X 10.2.4 or greater)

The printer can be connected using the Universal Serial Bus (USB) interface to a PC or Mac which has a USB interface. Drivers that allow you to use the USB port are provided on the CD-

ROM supplied with the printer.

Popular Printer Emulation Support

These printers support the following printer emulation modes.

BR-Script 3, HP LaserJet (PCL6), Epson FX-850 and IBM Proprinter XL.

Environment-Friendly

<Economy Printing Mode (Toner Save Mode)>

This feature will cut your printing cost by saving toner. It is useful for obtaining draft copies for proof-reading. You can select the toner saving economy mode through the Windows

printer driver supplied with your printer.

<Sleep Mode (Power Save Mode)>

Sleep mode automatically reduces power consumption when the printer is not in use for a certain period of time. The printer consumes less than 8.5W when in sleep mode.

<Low Running Cost>

Since the toner cartridge is separate from the drum unit, you need to replace only the toner cartridge after printing around 3,500 (Standard cartridge) pages or 7,000 (High yield cartridge) at 5% coverage for A4 paper for the standard cartridge, which is both cost effective and ecologically friendly.

Bar Code Print

The printer can print the following 11 types of bar codes

Code 39

Code 128

Interleaved 2 of 5

Codabar

US-PostNet

ISBN

EAN-8

EAN-13

UPC-A

EAN-128

UPC-E

Network Feature (for HL-5250DN/5270DN/5280DW)

The Brother printer has built in multi protocol network capability as standard. This allows multiple host computers to share the printer on a 10/100Mb wired Ethernet or IEEE

802.11b/802.11g wireless Ethernet network. Any users can print their jobs as if the printer was directly connected to their computer. Users on Windows

®

Windows

®

95/98/Me, Windows NT4.0,

2000/XP Home Edition/XP Professional/XP Professional x64 Edition, Mac OS to 9.2, Mac OS

®

®

X 10.2.4 or greater simultaneously can access this printer. For further information, see the Network User’s Guide supplied with the printer. The wireless network function is supported by the HL-5280DW only.

®

9.1

1-2

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

2. PARTS NAMES AND FUNCTIONS

2.1 Overview

(HL-5240/5250DN)

<Front View>

Front cover release button

Face-down output tray

Front cover

Control panel

Face-down output tray support flap (support flap)

MP tray cover ASSY

Power switch

Paper tray

Multi-purpose tray (MP tray)

Fig. 1-1

<Rear View>

Back cover

Duplex tray

(For HL-5250DN)

AC power connector

USB interface connector

10/100BASE-TX port

(For HL-5250DN)

*

The printer illustration is based on HL-5250DN.

Fig. 1-2

DIMM cover

Parallel interface connector

Network status LEDs

(Light emitting diodes)

(For HL-5250DN)

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CHAPTER 1 GENERAL

(HL-5270DN/5280DW)

<Front View>

Front cover release button

Control panel

Face-down output tray support flap (support flap)

MP tray cover ASSY

Face-down output tray

Front cover

Power switch

Paper tray

Multi-purpose tray (MP tray)

Fig. 1-3

<Rear View>

Back cover

Duplex tray

AC power connector

USB interface connector

10/100BASE-TX port

Fig. 1-4

DIMM cover

Parallel interface connector

LEDs

(Light emitting diodes)

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

2.2 Control Panel

(HL-5240/5250DN)

There are the four Light Emitting Diodes (LEDs) (

Toner

,

Dru

m,

Paper

and

Status

) and two control buttons (

Go

and

Job Cancel

) on the control panel.

1.

Toner

LED indicates when the Toner is low or at the end of its life.

2.

Drum

LED indicates when the Drum is nearing the end of its life.

3.

Paper

LED indicates when the paper tray is empty or there is a paper jam.

4.

Status

LED will flash and change color depending on the printer status.

5.

Job Cancel button

will stops and cancels the print operation in progress.

6.

Go button

Wake-up / Error recovery / Form feed / Reprint

Fig. 1-5

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CHAPTER 1 GENERAL

(HL-5270DN/5280DW)

Fig. 1-6

1.

LCD

• Off: The printer is off or in sleep status.

Green (General): Ready to print.

Printing

Warming up

Job canceling

• Red (Error): There is a problem with the printer.

Orange (Setting): The printer is offline.

Choosing a menu

Setting number of reprints.

Pause

2.

Data LED

: Orange

• On: Data is in the printer memory.

Blinking: Receiving or processing data.

Off: No remaining data in the memory.

3.

Go button

Exit from the control panel menu and reprint setting.

Clear error messages.

Pause and Continue printing.

4.

Job Cancel button

Stop and cancel the printing operation in progress.

5.

Reprint button

Choose the reprint menu and the number of extra copies

(1-999).

Please enhance the RAMDISK size when you want to use the Reprint functions.

6.

Menu buttons

+

: Move forward through menus.

Move forward through the available options.

-

: Move backward through menus.

Move forward through the available options.

Set

: Choose the control panel menu.

Set the chosen menus and settings.

Back

: Go back one level in the menu structure.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

3. SPECIFICATIONS

3.1 Printing

Print method

Laser

Electrophotography by semiconductor laser beam scanning

Wavelength: 770 - 810nm max

Laser class: Class B

Resolution

<Windows

95, WindowsNT

Windows

4.0, Windows

98/Me, Windows

2000,

XP Home Edition/XP Professional/XP Professional x64

Edition and Mac OS

>

1200 dpi*/ HQ1200/ 600dpi/ 300dpi

<DOS>

600dpi

<Linux>

* When you choose the higher print quality setting, the print speed will be slower.

Print quality

Normal printing mode

Economy printing mode (Toner saving mode)

Print speed

Normal

Up to 28 pages/minute (A4 size paper)

Up to 30 pages/minute (Letter-size paper)

Warm-up

First print

Less than 18 seconds at 23

°

C (73.4

°

F)

Less than 8.5 seconds when the printer is in the ready state.

(when loading A4 or Letter-size paper from the standard paper tray)

Consumables

<Toner

Life expectancy:

Standard

High yield

3,500 pages / cartridge

7,000 pages / cartridge

* when printing A4 or Letter-size paper at 5% print coverage.

   

Shelf life: 2 years (6 months after opening)

<Drum unit>

Life expectancy: 25,000 pages/ drum unit (1 page/ job)

* when printing A4 or Letter-size paper at 5% print coverage.

   

Shelf life: 2 years

The shelf life is guaranteed under the normal condition as below;

(Temperature)

Normal condition: 0 to 40

°

C

*Storage condition at the temperature of 40 to 50

°

C: Up to 5 days

*Storage condition at the temperature of –20 to 0

°

C: Up to 5 days

(Humidity)

Normal condition: 35 to 85%

*Storage condition at the humidity of 85 to 95%: Up to 5 days

*Storage condition at the humidity of 10 to 35%: Up to 5 days

NOTE:

Print speed varies depending on the paper size or media type. For details, refer to 3.8 ‘Print

Speeds with Various Settings’ in this Chapter .

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CHAPTER 1 GENERAL

3.2 Functions

<Controller>

Processor

266MHz

Memory

3

TM

), HP LaserJet (PCL6), Epson FX-850 and

IBM Proprinter XL

<Standard>

16 MB (HL-5240) 32MB (HL-5250DN/5270DN/5280DW)

<Option>

DIMM

(HL-5240)

The HL-5240 printer has 16 MB of standard memory and one slot for optional memory expansion. You can expand the memory up to 528

MB by installing dual in-line memory modules (DIMMs).

(HL-5250DN/5270DN/5280DW)

The HL-5250DN/5270DN/5280DW printer has 32 MB of standard memory and one slot for optional memory expansion. You can expand the memory up to 544 MB by installing dual in-line memory modules (DIMMs).

“DIMM types”

You can install the following DIMMs:

• 128 MB Buffalo Technology VN133-D128/ VN133-X128

256MB Buffalo Technology VN133-D256

• 512MB Buffalo Technology VN133-D512

64 MB TechWorks 12165-0004

128 MB TechWorks 12462-0001

• 256MB TechWorks 12485-0001

512MB TechWorks 12475-0001

In general, the DIMM must have the following specifications:

Type: 144 pin and 64 bit output

CAS latency: 2

Clock frequency: 100 MHz or more

Capacity: 64, 128, 256 or 512 MB

Height: 31.75 mm (1.25 in.)

Dram Type: SDRAM 2 Bank

SDRAM can be used.

NOTE:

There might be some DIMMs that will not work with the printer.

Interface

Standard:

Hi-Speed USB 2.0

IEEE 1284 Parallel

Hi-Speed USB 2.0

IEEE 1284 Parallel

10/100 BASE-TX

Hi-Speed USB 2.0

IEEE 1284 Parallel

10/100 BASE-TX

Wireless LAN

IEEE802.11 b/g

Option:

HL-5240 HL-5250DN/5270DN

10/100 BASE-TX

Ethernet (NC-2100p)

HL-5280DW

N/A N/A

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Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

Resident Fonts

(HL-5240/5250DN)

66 scalable fonts, 12 bitmap fonts, 11 bar codes;

Code39, Interleaved 2 of 5, EAN-8, EAN-13, UPC-A, EAN-128,

Codabar, FIM (US-PostNet), ISBN, Code128

(HL-5270DN/5280DW)

<PCL>

66 scalable fonts, 12 bitmap fonts, 11 bar codes;

Code39, Interleaved 2 of 5, EAN-8, EAN-13, UPC-A, EAN-128,

Codabar, FIM (US-PostNet), ISBN, Code128

<PostScript

66 fonts

3

TM

>

Option Font

(HL-5240/5250DN/5270DN/5280DW)

BT-1000 (Agfa Barcode Font)

<Software>

Printer driver

<Windows

>

• PCL Driver for Windows

95/98/Me, Windows NT

4.0,

Windows

2000 and Windows

XP Home Edition/XP

Professional/XP Professional x64 Edition *

* Download the printer driver for Windows

XP Professional x64

Edition from http://solutions.brother.com

• Generic PCL Driver for Windows NT

4.0, Windows

2000 and

Windows

XP Home Edition/XP Professional/XP Professional x64 Edition

• BR-Script 3 (PPD file) for Windows

95/98/Me, Windows NT

4.0

<Macintosh

>

• Brother Laser Driver for Mac OS

10.2.4 or greater

9.1 to 9.2 and Mac OS

X

• BR-Script 3 (PPD file) for Mac OS

10.2.4 or greater

9.1 to 9.2 and Mac OS

X

<Linux*>

• LPR Driver for Linux

• CUPS driver for Linux

* Download the printer driver for Linux from http://solutions.brother.com

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CHAPTER 1 GENERAL

Utilities

(HL-5240)

Interactive Help*

(HL-5250DN/5270DN/5280DW)

Interactive Help*, Driver Deployment Wizard**

* Interactive Help: Instructional animations for problem solving.

** The Driver Deployment Wizard automates the installation of a printer in a peer-to-peer network.

System Requirements

Computer Platform & Operating

System Version

Windows

Apple

Macintosh

 *3

Processor Speed

95

NT

*1

, 98, 98SE

Workstation 4.0

XP Home Edition

*1

486/66 MHz

Intel

Pentium

75 MHz

2000 Professional Intel

Pentium

133 MHz

Me Intel

Pentium

150 MHz

Intel

Pentium

300 MHz

XP Professional

XP Professional x64

Edition

*2

OS

9.1-9.2

Mac OS greater

X10.2.4 or

AMD Opteron

AMD Athlon

Intel

Xeon

EM64T

TM

TM

TM

64

with Intel

Intel

X Pentium

EM64T

with 4 Intel

All base models meet minimum requirements

Minimum

RAM

Recom- mended

RAM

Available

Hard

Disk

Space

8 MB

16 MB

64 MB

32 MB

16 MB

32 MB

40 MB

50 MB

128 MB 50 MB

64 MB 50 MB

128 MB 128 MB 50 MB

256 MB 256 MB 50 MB

32 MB 64 MB 50 MB

128 MB 160 MB 50 MB

*1 USB is not supported under Windows

95 or Windows NT

4.0.

*2 Download the printer driver for Windows

 http://solutions.brother.com

XP Professional x64 Edition from

*3 Power Macintosh with an Apple original pre-installed USB port.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

3.3 Electronics and Mechanics

Power source

U.S.A. and Canada: AC 110 to 120V, 50 Hz/60 Hz

Europe and Australia: AC 220 to 240V, 50 Hz/60 Hz

Power consumption

Printing:

Standing by:

Sleep:

Average 610 W at 25

°

C (77

°

F)

Average 620 W at 25

°

C (77

°

F) (HL-5280DW)

Average 80 W at 25 ° C (77 ° F)

Average 8 W (HL-5240)

Average 9 W (HL-5250DN/5270DN)

Average 12 W (HL-5280DW)

Noise level

<Sound

Printing: 53dB (A)

Standing by: 27dB (A)

<Sound power>

Printing: LWAd=6.4 Bell (A)

Standing by: 4.0 Bell (A)

Temperature

Humidity

Operating: 10 to 32.5

°

C (50 to 90.5

°

F)

Non operating: 0 to 40 ° C (38 to 104 ° F)

Storage: -20 to 40

°

C (-4 to 104

°

F)

Operating:

Storage:

20 to 80% (non condensing)

10 to 85% (non condensing)

Dimensions

(HL-5240/5250DN) <W x D x H>

371 x 384 x 246 mm (14.6 x 15.1 x 9.7 inches)

(HL-5270DN/5280DW) <W x D x H>

393 x 384 x 259 mm (15.5 x 15.1 x 10.2 inches)

Weight

(HL-5240)

Approximately 8.3 kg (18.3 lb.), not including the drum unit and toner cartridge.

Approximately 9.5 kg (20.9 lb.) including the drum unit and toner cartridge.

(HL-5250DN)

Approximately 8.6 kg (19.0 lb.), not including the drum unit and toner cartridge.

Approximately 9.8 kg (21.6 lb.) including the drum unit and toner cartridge.

(HL-5270DN/5280DW)

Approximately 8.8 kg (19.4 lb.), not including the drum unit and toner cartridge.

Approximately 10.0 kg (22.0 lb.) including the drum unit and toner cartridge

NOTE:

The power consumption figure quoted for sleep mode is when the fan has stopped.

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CHAPTER 1 GENERAL

These are key service information to maintain the product.

Machine life: 200,000 pages/ 5 years

MTBF (Meantime between failure): Up to 4000 hours

MTTR (Meantime to repair): Average 30 minutes

Monthly volume: 20,000 pages

Periodical replacement parts:

Fuser Unit

Separator pad holder assembly

Pick up roller assembly

100,000 pages

100,000 pages

100,000 pages

Laser Unit 100,000 pages

* As for periodical replacement parts, refer to Chapter 3 .

<Print server>

• NC-6400h (HL-5250DN/5270DN/5280DW)

Operating system support

Windows

95/98/Me, Windows NT

4.0, Windows

Edition/XP Professional/XP Professional x64 Edition,

2000/XP Home

Mac OS

9.1 to 9.2, Mac OS

X 10.2.4 or greater

Protocol support

TCP/IP: IPv4 APR, RARP, BOOTP, DHCP, APIPA (Auto IP),

WINS, NetBIOS name resolution, DNS Resolver, mDNS. LPR/LPD, Custom Raw Port/Port9100, SMB

Print, IPP, FTP Server, Telnet, SNMP, HTTP, TFTP,

SMTP Client

TCP/IP: IPv6 NDP, DNS Resolver, mDNS, LPR/LPD, Custom Raw

Port/Port9100, IPP, FTP Server, Telnet, SNMP,

HTTP, TFTP, SMTP Client

Network type 10/100BASE-TX Ethernet network

Network printing

Windows

95/98/Me Peer-to-Peer printing, Windows NT

4.0 and

Windows

2000/XP Home Edition/XP Professional/XP Professional x64 Edition TCP/IP printing, Macintosh

 printing

Management utilities

BRAdmin

Professional utility

Windows

95/98/Me, Windows NT

Professional x64 Edition

4.0, Windows

2000/XP Home Edition/XP Professional/XP

BRAdmin Light

Mac OS

X 10.2.4 or greater

Web BRAdmin Windows

2000 Professional / Server / Advanced

Server, Windows

Professional

XP Home Edition/XP

Professional/XP Professional x64 Edition

NOTE:

NC-6400h is a network controller of the printer built-in type.

NC-2100p (HL-5240) (Option)

An optional network print server (NC-2100p) allows you to connect to your network through the parallel interface.

Network interface

Printer interface

Support protocol

Management features

10/100BASE-TX Ethernet

Parallel

TCP/IP, NetBEUI

Embedded web server support

SNMP / MIB support

TELNET remote console

BRAdmin Professional compatible

Flash memory for easy updating of firmware

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

<Ethernet wireless network>

Network node type NC-7200w

Operating system support

Windows

Mac OS

98/Me, Windows NT

X 10.2.4 or greater

4.0, Windows

2000/XP

Protocol support

Network type

TCP/IP: IPv4

TCP/IP: IPv6

APR, RARP, BOOTP, DHCP, APIPA (Auto IP),

WINS, NetBIOS name resolution, DNS

Resolver, mDNS, LPR/LPD, Custom Raw

Port/Port9100, SMB Print, IPP, FTP Server,

Telnet, SNMP, HTTP, TFTP, SMTP Client

NDP, DNS Resolver, mDNS, LPR/LPD, Custom

Raw Port/Port9100, IPP, FTP Server, Telnet,

SNMP, HTTP, TFTP, SMTP Client

IEEE 802.11b/g wireless

RF channels

Communication mode

Data rates

USA/Canada 1-11

Europe/Oceania 1-13

Japan 1-14

Infrastructure, Ad-hoc 802.11

Link distance

Network security

Network printing

Computer requirements

(for drivers,

BRAdmin

Professional,

Peer-to-Peer software, etc.)

Macintosh connection

Management utilities

70 m (233 ft.) at lowest data rate (The distance rate will vary upon environment and other equipment location.)

SSID/ESSID, 128 (104) / 64 (40) bit WEP, WPA-PSK (TKIP/AES),

LEAP

Windows

95/98/Me Peer-to-Peer printing

Windows NT

4.0 and Windows

2000/XP TCP/IP printing

Macintosh

printing (Mac OS

10.2.4 or greater supporting TCP/IP)

Processor Minimum

Speed

Pentium

II or equivalent for Windows

98/Me,

Windows NT

4.0, Windows

2000/XP

Minimum RAM

Recommended

RAM

Computer

24MB for Windows

32MB for Windows

64MB for Windows

98/Me

2000

XP

32MB for Windows

64MB for Windows

128MB for Windows

98/98SE/Me

2000

XP

Wireless (AirPort) ready Power Macintosh

All base models meet minimum requirements Processor Minimum

Speed

Minimum RAM

Recommended

RAM

BRAdmin

Professional

BRAdmin Light

Web BRAdmin

*1

128MB for Mac OS

160MB for Mac OS

Windows

2000/XP

X 10.2.4 or greater

X 10.2.4 or greater

98/Me, Windows NT

Mac OS

X 10.2.4 or greater

4.0, Windows

Windows

2000 Professional / Server /

Advanced Server, Windows

XP Professional

*1: Web BRAdmin are available as a download from http://solutions.brother.com.

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CHAPTER 1 GENERAL

3.6 Paper

Paper Input*

Multi-purpose tray

Paper tray (Standard)

Lower tray (Option)

* Calculated with 80 g/m

2

(21 lb) paper.

Paper Output*

All models

50 sheets

250 sheets

250 sheets

All models

* Calculated with 80 g/m

2

(21 lb) paper.

HL-5240

Duplex

Manual Duplex

Automatic Duplex N/A

HL-5250DN/ 5270DN/ 5280DW

Yes

Yes

The printer loads paper from the installed paper tray or the multi-purpose tray. The feedable media type and size are different depending on the paper tray installed. The names for the paper trays in the printer driver and this guides are as follows;

Paper tray

Multi-purpose tray

Optional lower tray unit

Duplex tray for automatic duplex printing (for HL-

5250DN/5270DN/5280DW)

Tray 1

MP Tray

Tray 2/ Tray 3

DX

The table in the next page shows the feedable media of each paper tray described above.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

Tray 1/2/3 MP Tray DX

Choose the media type from the printer driver

Plain paper

75 g/m g/m

2

2

to 105

(20 to 28 lbs.)

Recycled paper

Bond paper

Rough paper-

60 g/m g/m

2

2

to 161

(16 to 43 lbs.)

Thin paper

60 g/m g/m

2

2

to 75

(16 to 20 lbs.)

Thick paper

105 g/m

2 g/m

2

to 161

(28 to 43 lbs.)

Yes

60 g/m

2

to 105 g/m

2

(16 to 28 lbs.)

60 g/m g/m

2

Yes

2

to 161

(16 to 43 lbs.)

N/A

Bond paper

Thick Paper or

Thicker Paper

Transparency

Labels

Yes

Up to 10 sheets

A4 or Letter **

Yes

Up to 10 sheets

A4 or Letter

N/A

Transparencies

N/A Yes

A4 or Letter

N/A

Thicker Paper

Envelopes

* Up to 10 sheets

** Not available for the optional Tray 2/3.

Env. Thin,

Env. Thick

MP Tray DX

Width:

69.9 to 215.9 mm

(2.75 to 8.5 in.)

Length:

116 to 406.4 mm

(4.57 to 16 in.)

A4, Letter, Legal*,

B5 (ISO),

Excutive, A5, A6,

B6 (ISO)

A4, Letter, Legal*,

B5 (ISO),

Excutive, A5,

B6 (ISO)

A4, Letter, Legal*

* Legal size paper is not available in some regions outside the USA and Canada.

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CHAPTER 1 GENERAL

Tray 1

60 to 105 g/m

(16 to 28 lb.)

2

MP Tray

60 to 161 g/m

2

(16 to 43 lb.)

DX

60 to 105 g/m

2

(16 to 28 lb.)

Tray 2/3

Lower tray unit

(Option) (LT-5300)

60 to 105 g/m

2

(16 to 28 lb.)

Plain paper

Recycled paper

Transparency

Europe USA

Xerox Premier 80 g/m

2

Xerox Business 80 g/m

2

M-real DATACOPY 80 g/m

2

Xerox 4200DP 20lb

Hammermill Laser Paper 24lb

Xerox Recycled Supreme

3M CG3300

N/A

3M CG 3300

Label

Avery laser label L7163 Avery laser label #5160

* This printer can use recycled paper that meets the DIN 19309 specification.

Moisture content

4% to 6% by weight

!

CAUTION:

When you are choosing print media, be sure to follow the information given below to prevent any paper jams, print quality problems or printer damage;

It is recommended to use long-grained paper for the best print quality. If short-grained paper is being used, it might be the cause of paper jams.

Use neutral paper. Do not use acid paper to avoid any damage to the drum unit.

Avoid using coated paper such as vinyl coated paper.

Avoid using preprinted or highly textured paper.

It is recommended to use labels or transparencies which are designed for use in laser printers.

Avoid feeding labels with the carrier sheet exposed, or the printer will be damaged.

Before loading paper with holes such as organizer sheets, be sure to fan the stack well.

Do not use organizer sheets that are stuck together. The glue that is used might caused damaged to the printer.

When printing on the back of pre-printed paper, if the paper is curled, be sure to straighten the paper as much as possible.

Different types of paper should not be loaded at the same time in the paper tray to avoid any paper jams or misfeeds.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

When using PCL emulation, the edges of the paper that cannot be printed on are shown below.

Portrait

F

G

Physical page

Printable area

Logical page

E

G

E

G

D

B

B

D

F

Physical page length

Maximum logical page length

Distance from edge of physical page to edge of logical page

F

G

C

A

NOTE:

“Logical page” shows the printable area for a PCL driver.

“Printable area” shows mechanical printable area of the machine.

Therefore, the machine can only print within the shaded area when you use a PCL driver.

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CHAPTER 1 GENERAL

The table below shows the printable areas when printing on Portrait for each paper size.

Letter

Legal

Folio

Executive

A 4

A 5

A 6

B 5 (JIS)

B 5 (ISO)

B 6 (ISO)

COM10

MONARCH

C 5

DL

DL L

215.9 mm

8.5”

(2,550 dots)

215.9 mm

8.5”

(2,550 dots)

215.9 mm

8.5”

(2,550 dots)

184.15 mm

7.25”

(2,175 dots)

210.0 mm

8.27”

(2,480 dots)

148.5 mm

5.85”

(1,754 dots)

105.0 mm

4.13”

(1,240 dots)

182.0 mm

7.1”

(2,130 dots)

176.0 mm

6.93”

(2,078 dots)

125.0 mm

4.92”

(1,476 dots)

104.78 mm

4.125”

(1,237 dots)

98.43 mm

3.875”

(1,162 dots)

162.0 mm

6.38”

(1,913 dots)

110.0 mm

4.33”

(1,299 dots)

220.0 mm

8.66”

(2,598 dots)

250.0 mm

9.84”

(2,952 dots)

176.0 mm

6.93”

(2,078 dots)

241.3 mm

9.5”

(2,850 dots)

190.5 mm

7.5”

(2,250 dots)

229.0 mm

9.01”

(2,704 dots)

220.0 mm

8.66”

(2,598 dots)

110.0 mm

4.33”

(1.299 dots)

279.4 mm

11.0”

(3,300 dots)

355.6 mm

14.0”

(4,200 dots)

330.2mm

13.0”

(3,900 dots)

266.7 mm

10.5”

(3,150 dots)

297.0 mm

11.69”

(3,507 dots)

210.0 mm

8.27”

(2,480 dots)

148.5 mm

5.85”

(1,754 dots)

257.0 mm

10.11”

(3,033 dots)

164.0 mm

6.46”

(1,936 dots)

164.0 mm

4.44”

(1,334 dots)

92.11 mm

3.63”

(1,087 dots)

85.7 mm

3.37”

(1,012 dots)

150.0 mm

5.9”

(1,771 dots)

98.0 mm

3.86”

(1,157 dots)

207.4 mm

8.17”

(2,450 dots)

203.2 mm

8.0”

(2,400 dots)

203.2 mm

8.0”

(2,400 dots)

203.2 mm

8.0”

(2,400 dots)

175.7 mm

6.92”

(2,025 dots)

198.0 mm

7.79”

(2,338 dots)

136.5 mm

5.37”

(1,612 dots)

93.0 mm

3.66”

(1,098 dots)

170.0 mm

6.69”

(2,007 dots)

250.0 mm

9.84”

(2,952 dots)

176.0 mm

6.93”

(2.078 dots)

241.3 mm

9.5”

(2,850 dots)

190.5 mm

7.5”

(2,250 dots)

229.0 mm

9.01”

(2,704 dots)

220.0 mm

8.66”

(2,598 dots)

110.0 mm

4.33”

(1.299 dots)

279.4 mm

11.0”

(3,300 dots)

355.6 mm

14.0”

(4,200 dots)

330.2mm

13.0”

(3,900 dots)

266.7 mm

10.5”

(3,150 dots)

297.0 mm

11.69”

(3,507 dots)

210.0 mm

8.27”

(2,480 dots)

148.5 mm

5.85”

(1,754 dots)

257.0 mm

10.11”

(3,033 dots)

6.35 mm

0.25”

(75 dots)

Ç

Ç

6.35 mm

0.25”

(75 dots)

6.01 mm

0.24”

(71 dots)

Ç

Ç

Ç

Ç

Ç

6.35 mm

0.25”

(75 dots)

Ç

6.01 mm

0.24”

(71 dots)

Ç

6.27 mm

0.25”

(74 dots)

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

6.27 mm

0.25”

(74 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

NOTE:

The paper sizes indicated here should confirm to the nominal dimensions specified by JIS except B5 (ISO), B6 (ISO).

The dot size is based on 300 dpi resolution.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

Landscape

E

G

F

G

Physical page

Printable area

Logical page

E

G

D

B

B Physical page length

D Maximum logical page length

F Distance from edge of physical

page to edge of logical page

G

C

A

F

NOTE:

“Logical page” shows the printable area for a PCL driver.

“Printable area” shows mechanical printable area of the machine.

Therefore, the machine can only print within the shaded area when you use a PCL driver.

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CHAPTER 1 GENERAL

The table below shows the printable areas when printing on Landscape for each paper size.

Letter

Legal

Folio

Executive

A 4

A 5

A 6

B 5 (JIS)

B 5 (ISO)

B 6 (ISO)

COM10

MONARCH

C 5

DL

DL L

279.4 mm

11.0”

(3,300 dots)

355.6 mm

14.0”

(4,200 dots)

330.2mm

13.0”

(3,900 dots)

266.7 mm

10.5”

(3,150 dots)

297.0 mm

11.69”

(3,507 dots)

210.0 mm

8.27”

(2,480 dots)

148.5 mm

5.85”

(1,754 dots)

257.0 mm

10.11”

(3,033 dots)

250.0 mm

9.84”

(2,952 dots)

176.0 mm

6.93”

(2,078 dots)

241.3 mm

9.5”

(2,850 dots)

190.5 mm

7.5”

(2,250 dots)

229 mm

9.01”

(2,704 dots)

220 mm

8.66”

(2,598 dots)

110 mm

4.33”

(1,299 dots)

176.0 mm

6.93”

(2,078 dots)

125.0 mm

4.92”

(1,476 dots)

104.78 mm

4.125”

(1,237 dots)

98.43 mm

3.875”

(1,162 dots)

162 mm

6.38”

(1,913 dots)

110 mm

4.33”

(1,299 dots)

220 mm

8.66”

(2,598 dots)

215.9 mm

8.5”

(2,550 dots)

215.9 mm

8.5”

(2,550 dots)

215.9 mm

8.5”

(2,550 dots)

184.15 mm

7.25”

(2,175 dots)

210.0 mm

8.27”

(2,480 dots)

148.5 mm

5.85”

(1,754 dots)

105.0 mm

4.13”

(1,240 dots)

182.0 mm

7.1”

(2,130 dots)

240.0 mm

9.44”

(2,834 dots)

166.4 mm

6.55”

(1,960 dots)

231.1 mm

9.1”

(2,730 dots)

180.4 mm

7.1”

(2,130 dots)

219.0 mm

8.62”

(2,586 dots)

210.0 mm

8.26”

(2,480 dots)

97.5 mm

3.84”

(1,151 dots)

269.3 mm

10.6”

(3,180 dots)

345.5 mm

13.6”

(4,080 dots)

320.0mm

12.6”

(3,780 dots)

256.6 mm

10.1”

(3,030 dots)

287.0 mm

11.2”

(3,389 dots)

200.0mm

7.87”

(2,362 dots)

138.5 mm

5.45”

(1,636 dots)

247.0 mm

9.72”

(2,916 dots)

176.0 mm

6.93”

(2,078 dots)

125.0 mm

4.92”

(1,476 dots)

104.78 mm

4.125”

(1,237 dots)

98.43 mm

3.875”

(1,162 dots)

162 mm

6.38”

(1,913 dots)

110 mm

4.33”

(1,299 dots)

220 mm

8.66”

(2,598 dots)

215.9 mm

8.5”

(2,550 dots)

215.9 mm

8.5”

(2,550 dots)

215.9 mm

8.5”

(2,550 dots)

184.15 mm

7.25”

(2,175 dots)

210.0 mm

8.27”

(2,480 dots)

148.5 mm

5.85”

(1,754 dots)

105.0 mm

4.13”

(1,240 dots)

182.0 mm

7.1”

(2,130 dots)

5.0 mm

0.2”

(60 dots)

Ç

Ç

5.0 mm

0.2”

(60 dots)

4.8 mm

0.19”

(59 dots)

Ç

Ç

Ç

Ç

Ç

5.0 mm

0.2”

(60 dots)

Ç

4.8 mm

0.19”

(59 dots)

Ç

6.27 mm

0.25”

(74 dots)

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

6.27 mm

0.25”

(74 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

4.2 mm

0.16”

(50 dots)

NOTE:

The paper sizes indicated here should confirm to the nominal dimensions specified by JIS except B5 (ISO), B6 (ISO).

The dot size is based on 300 dpi resolution.

You can not print within 4.2 mm (50dots in 300 dpi mode) on all four sides of the paper.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

3.8 Print Speeds with Various Settings

Print speed is up to 28 ppm for A4 size and 30 ppm for Letter size when loading A4 or Letter size paper from the paper tray in the plain paper mode.

Actual print speed varies depending on the media type or paper size as shown in the tables below;

<A4 / Letter size>

Media type setting All models

Thin Paper

Plain Paper

Recycled Paper

Thick Paper,

Envelopes, Env.Thin

28/30 ppm

14 ppm

Thicker/Bond Paper,

Env.Thick

3 ppm

<Smaller size than A4 or Letter>

Media type setting

28/30 ppm

28/30 ppm

All models

Thin Paper

Plain Paper

Recycled Paper

28/30 ppm

90 sec 28/30 ppm Æ 14 ppm

90 sec 28/30 ppm

Æ

14 ppm

Thick Paper,

Envelopes

Thicker/Bond Paper,

Env.Thick

14 ppm

3 ppm

NOTE:

The print speed may vary according to conditions, such as paper size and paper tray.

When a smaller size paper than A4 or Letter is printed, the temperature on both edges of the fuser unit is much higher than the temperature on the center of the unit where the paper is fed depending on the setting or model. Therefore, the print speed is slowed in order to decrease the temperature on the edges after the specified time, it is maximum print speed when you first start printing.

The actual print speed varies depending on the paper size.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

3.9 Toner Cartridge Weight Information

Toner Cartridge Weight (approximate weight)

High yield toner cartridge

(TN580 US, TN-3170 EUR/EEU

TN-3185 AP)

From the first production

From the serial number:

M5JD021965D~

Brand new Toner Cartridge Weight 727g (± 15g) 787g (± 15g)

190g 190g Toner Weight at Brand New Toner

Cartridge

Toner Cartridge Weight at Toner

Near Empty

Remain Toner Weight at Toner

Near Empty

Toner Cartridge Weight at Toner

Life End

617g (± 15g)

77g 77g

605g (± 15g)

677g (± 15g)

665g (± 15g)

Remain Toner Weight at Toner Life

End

Standard toner cartridge

(TN-550 US, TN-3130EUR/EEU

TN-3145 AP)

68g 68g

From the first production

From the serial number:

M5JV030390D~

Brand new Toner Cartridge Weight

Toner Weight at Brand New Toner

Cartridge

Toner Cartridge Weight at Toner

Near Empty

663g (± 15g) 723g (± 15g)

126g 126g

617g (± 15g) 677g (± 15g)

Remain Toner Weight at Toner

Near Empty

Toner Cartridge Weight at Toner

Life End

77g 77g

602g (± 15g) 662g (± 15g)

Remain Toner Weight at Toner Life

End

65g 65g

You can print about 630 pages with 10g toner. (A4 size, 5% coverage, continuous printing)

NOTE:

The figure has varied quite a bit, for example from 590 pages to 720 pages, on a comparison of printing test results.

NOTE:

Without yellow protector, DR cover.

Toner weight may vary within 2 to 3g.

From the serial number “M5JV030390D~” for the standard toner cartridge and

“M5JD021965D~” for the high yield toner cartridge, 60g is over in the total weight of a toner cartridge because of a different type of the Develop Roller.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

4. SERIAL NO. DESCRIPTIONS

The descriptions below show how to understand the meanings of the numbers printed on the labels or bag of the printer and printer parts.

< ID for production month >

A: January

E: May

B: February

F: June

J: September K: October

C: March

G: July

D: April

H: August

L: November M: December

< ID for year >

5: 2005 6: 2006

< ID for factory >

9: Kariya Plant A: Mie Brother

J: Buji Nan Ling Factory E: BITM

F: BISZ

C: BIUK

D: BIUS

(1) Printer: Printed on the label attached on the rear of the main body

<Example>

<MODEL NO.>

< SERIAL NO. >

U 5 2 6 8 2 A 5 J 1 1 1 1 0 1

SEQUENTIAL NO.

FACTORY ID NO.

YEAR

MONTH

(2) Process unit: Imprinted on the aluminum bag

(Drum unit with toner cartridge)

5 A 1 1 J A

YEAR

MONTH

DATE

PRODUCTION LINE NO.

FACTORY ID NO.

(3) Drum unit: Printed on the bar code label attached inside the drum unit

A 5 J 5 1 0 0 1 0 4 A

PRODUCTION LINE NO.

MONTH SERIAL NO.

YEAR

FACTORY ID NO.

TONER VOLUME

DR/TN REUSE

The first time: M

The second time: N

The third time: P

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CHAPTER 1 GENERAL

(4) Toner cartridge: Imprinted on the aluminum bag

5 A 3 0 J A

YEAR

MONTH

DATE

PRODUCTION LINE NO.

FACTORY ID NO.

Printed on the bar code label attached on the toner cartridge

CARTRIDGE

PRODUCTION INFO.

M 5 J L 0 0 0 1 9 9 A

MONTH SERIAL NO.

PRODUCTION LINE NO.

YEAR

FACTORY ID NO.

TONER VOLUME

L: 80g

M: 100g

DR/TN REUSE

The first time: M

The second time: N

The third time: P

(5) Laser unit: On the laser unit

X X XXXXXXX

SERIAL NUMBER

MOLD NUMBER

MANUFACTURE DISTINCTION

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

CHAPTER 2 THEORY OF OPERATION

1. OVERALL

1.1 General Block Diagram

Fig. 2-1 shows a general block diagram.

Control system

Extended RAM

SODIMM 144pin

RAM

16MB: HL-5240

32MB: HL-5250DN/

5270DN/

5280DW

USB host

(HL-5280DW)

Video control block

Ethernet

10/100 Base TX

(HL-5250DN/

5270DN/5280DW)

Interface block

USB

Parallel

Wireless LAN

(HL-5280DW)

Engine control block

Operation block

(Control panel)

Laser unit

Drive block

(DC motor)

Drum unit

Transfer block

Charging

block

Exposure drum

Developer unit

Developing block

Paper dust cleaner block

Toner cartridge

Image generation system

Fig. 2-1

Paper tray

Fuser unit

Paper eject tray

Paper feed system

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CHAPTER 2 THEORY OF OPERATION

2. ELECTRONICS

2.1 General Block Diagram

Main fan

Power supply fan

Sensor PCB

(PE+PEDGE)

MP sensor PCB

Tray1 solenoid

Regist solenoid

MP solenoid

Interlock switch

(Cover sensor)

Toner LED PCB

(Light emission)

Toner sensor PCB

(Light

reception)

High-voltage power supply

Regist front sensor

Regist rear sensor

Front relay

PCB

New toner sensor

Wireless LAN

(HL-5280DW)

Polygon motor

Laser diode PCB

Main PCB

Fig. 2-2

Low-voltage power supply

Rear relay

PCB

Paper eject sensor

Fuser thermistor

DX unit sensor PCB

DX solenoid

(HL-5250DN/5270DN)

LT PCB

LT PCB

LT Sensor PCB

(PE+PEDGE)

LT1

LT solenoid

LT Sensor PCB

(PE+PEDGE)

LT2

LT solenoid

Main motor

Panel PCB

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

2.2 Main PCB Block Diagram

Fig. 2-3 shows the block diagram of the main PCB.

MAX 512MB

SDRAM

HL-5240: 16MB

HL-5250DN/5270DN/

5280DW: 32MB

ASIC

CPU Core

(Sapphire 266MHz)

D16/A13

SPD

EEPROM

16kbit

Mask ROM

8MB

Internal: 16MB

Flash ROM

HL-5250DN: 2MB

HL-5270DN/5280DW: 4MB

D16/A24

INTn

RSTn

Network IC

(LAN9115)

HL-5250DN: TCP/IP

HL-5270DN: Full Protocol

Xtal

25.00MHz

LAN

D16/A24

CDCC GA

IEEE 1284

CLKINT

DATA

REQn

RSTn

USB2.0

2.0 High Speed

VBUS

D+/D-

Xtal(for Sysclk/USB)

48.00MHz

Xtal(for Video)

23.4617MHz

CN

(Laser Diode PCB)

8 pin

CN (Laser Unit)

14 pin

CN (MAIN MOTOR)

19 pin

Motor

Driver IC

SCAN_CTR/

MAIN_CTR/

MAIN_FR

+3.3V

+5V

+3.3V

Reset IC

Regulator

5V 3.3V

Regulator

3.3V 1.5V

Fig. 2-3

INTn

RSTn

USB HOST

ISP 1362

HL-5280DW

Wireless

LAN

Xtal

12.00MHz

5 LED/2 SW (HL-5240/5250DN)

LCD16x1 1LED 7SW (HL-5270DN/5280DW)

DX solenoid

CN (PANEL)

10 pin

CN (DXSOL)

2 pin

CN (TNRSEN)

2 pin

HTLIMITN

AI1:2

AI3:7

3 solenoid (T1/REG/MP)

3 sensor (Front_Cover/Toner sensor/Process NEW)

CN (RELAY FRONT)

9 pin

Comparator

Therm1/2

2 sensor (PaperOut/DX tray)

5 Analog_in (HVPS)

GRIDC

5 PWM_out (HVPS)

2 FAN (MAIN/HVPS)

5 sensor (reg_f/reg_r/pedg/T1PE/MPPE)

Toner LED

HeaterON

+24V

+8V +3.3V

+24VRET

0V

4 sensor (pedgex2/PEx2)

2 solenoid

CN (RELAY REAR)

6 pin

CN (HVPS)

23 pin

CN (LVPS)

8 pin

CN (LT)

12 pin

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CHAPTER 2 THEORY OF OPERATION

For the entire circuit diagram of the main PCB.

2.3.1 CPU

A Sapphire – 266 MHz (Vr5500) is built into the CPU in the ASIC. It runs at a clock frequency of 266 MHz.

The functions of the interface block communication with external devices are described below;

2.3.2 USB interface (2.0 High Speed)

Stores the data received from the PC into DRAM as controlled by the DMA controller. The transmission speed is 12Mbps.

Stores the data received from the PC into DRAM by DMA using the Gate Array

(UPD65421MC-11) exclusive for parallel I/F. It is for the normal reception and dual direction communication (nibble mode, byte mode, ECP mode).

It uses the National Semiconductor brand 10 Base-T/100 Base-TX network controller

(LAN9115). The pulse transformer and the Link/Active LED are built in the RJ-45 connector.

2.3.5 ROM

< ROM 0 >

64 Mbit ROM (8 MB) is fitted.

The main program is written into the ROM.

< ROM 1: Demo Specification For US, Canada>

16 Mbit ROM (2 MB) is fitted. (HL-5240)

32 Mbit ROM (4 MB) is fitted. (HL-5250DN)

< ROM 1: Standard Specification >

16 Mbit ROM (2 MB) is fitted. (HL-5250DN)

32 Mbit ROM (4 MB) is fitted. (HL-5270DN/5280DW)

2.3.6 SDRAM

16 MB SDRAM (128 Mbits x 1) is used as the RAM. (HL-5240)

32 MB SDRAM (256 Mbits x 1) is used as the RAM. (HL-5250DN/5270DN/5280DW)

1 DIMM (144pin) slot can be fitted as optional expansion RAM. The main PCB has one slot and the capacity of DIMM can be from 64MB to 512MB.

2.3.8 EEPROM

The EEPROM is M24C16 type of two-wire method with a 16kbit configuration.

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The reset IC is a S-80928CLNB. The reset voltage is 2.8V (typ.) and the low period of reset is

260ms (typ.).

2.3.10 Panel I/O

The interface with the panel board is connected to ASIC.

2.3.11 Video I/O

The video signal is directly output from ASIC to laser unit.

2.3.12 Power supply

+3.3V is supplied from LVPS. +3.3V is used by logic circuit.

In addition, +3.3V is generated by the voltage regulator from +8V supplied from the LVPS.

+1.5V is used for the CPU within the ASIC and the logic circuit.

24V is used for the motors and solenoids and fan.

2.3.13 Wireless LAN

The wireless LAN is conformable to 802.11 b/g. It is also conformable to WEP, WPA-PSK,

LEAP and Secure Easy Setup.

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CHAPTER 2 THEORY OF OPERATION

2.4.1 Low-voltage power supply

The power supply uses a switching regulation system to generate the regulated DC power

(+5V and +24V), which are converted from the AC line.

The regulated output and the production code of each power supply are listed below;

Regulated Output

+3.3V / 1.5A

+24V / 2.4A, +8V / 0.8A

Production Code

100V: SRP1828UC

200V: SRP1829EK

2.4.2 High-voltage power supply

The high-voltage power supply generates and outputs the voltages and currents for the charging, development and transfer functions.

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3. MECHANICS

3.1 Overview of Printing Mechanism

Eject roller ASSY

Fuser unit

Back cover

Outer chute ASSY

Halogen heater

Heat roller

Pressure roller

Exposure drum

Duplex unit

Transfer roller

Paper tray

Paper tray (LT unit)

Fig. 2-4

2-7

Laser unit

Developer roller

Drum unit

Pinch roller

Separation roller MP

Feed roller

Regist roller

Regist actuator front

Feed roller TR

Pressure roller

Regist actuator rear

Separation roller

Feed roller

Feed roller TR

Pressure roller

Separation roller

Feed roller

LT unit

Confidential

CHAPTER 2 THEORY OF OPERATION

3.2 Overview Gears

Register solenoid

MP solenoid

T1 solenoid

LT

LT solenoid

Fig. 2-5

Eject solenoid

DX

Main motor

(Drive sub ASSY)

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

The feed roller picks up a few sheets or one sheet of paper from the paper tray every time it is rotated and feeds it to the separation roller.

Pinch roller

Regist roller

PE actuator

Feed roller TR

Pressure roller

Separation roller

Feed roller

Paper

Fig. 2-6

Plate

The main motor drive is transmitted to the gears, and the gears are engaged. Then, the paper is gripped between the separation roller and separation pad and separated into individual sheets.

The paper drawn out of the paper tray pushes against the regist front actuator, and the paper top position or absence of paper is detected by the actuator movement. The tail edge actuator detects the end of the paper fed.

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CHAPTER 2 THEORY OF OPERATION

The plate ASSY in the paper tray is pushed up with the motor drive and not with the spring in order to maintain the constant paper feeding performance regardless the number of sheet remained in the tray.

When the paper tray (Tray1 cassette) is installed into the printer, the lift gear 46 is rotated, and the motor drive is transmitted to the plate ASSY so that it is pushed up.

P/P gear 29 clutch cam

P/P clutch hook A2

P/P clutch hook B

P/P differential

P/P clutch hook A1

P/P gear 22/B23 tray drive

Gear 15

Plate ASSY

Plate up plate

Lift gear 46

Gear 21-16

Fig. 2-7

When the feed roller is pushed up, the hook is released by the lift arm, and the rotation of the clutch gear is stopped. Then, the pressure plate is stopped to push up.

Stop

Fig. 2-8

When a paper jam occurs, the nips between the pressure roller and feed roller TR and between the pinch roller and regist roller are released, which allows you to remove the jammed recording paper easily.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

After the paper top position is detected by the regist actuator front, the paper, separated into individual sheets by the separation roller, is fed further for a specified time, and the paper top position reaches the regist roller so that the paper skew is adjusted. Then, the register solenoid is turned off, the paper feed roller starts turning, and the paper is fed to the transfer roller in the drum/toner ASSY.

Drum/toner ASSY

Exposure drum

Transfer roller

Regist actuator rear Regist actuator front

Regist roller

Fig. 2-9

The regist actuator rear in the path from the regist roller to the transfer roller controls the first print position on the paper. The printer starts transferring an image when a definite time passes after the paper is passed through the regist actuator rear.

Exposure drum

Generates the latent electrostatic image and develops the image on the drum surface.

Primary charger

Forms a uniform charge on the drum surface.

Generates the ion charge on the drum.

(2) Grid

Spreads the ion charge evenly over the drum surface.

Transfer roller

Transfers the toner image to the paper from the drum surface.

Cleaner

Removes the paper dust or dirt on the surface of the exposure drum.

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CHAPTER 2 THEORY OF OPERATION

3.3.4 Developing

Developing causes the toner to be attracted to the electrostatic image on the drum so as to transform it into a visible image.

The developer consists of a non-magnetic toner. The developer roller is made of conductive rubber and the supply roller (which is also made of conductive sponge) rotate against each other. The toner is charged and carried from the supply roller to the developer roller. The toner adheres to the developer roller and is conveyed to the exposure drum at an even thickness controlled by the blade. The toner is nipped between the developer roller and the drum and developed onto the latent image on the drum. The electrostatic field between the drum and the developer roller, which is DC-biased from the high-voltage power supply, creates the electrostatic potential to attract toner particles from the developer roller to the latent image area on the drum surface.

Supply roller

Corona wire

Developer roller

Blade

Exposure drum

Transfer roller

Fig. 2-10

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

The image transferred to the paper by static electricity is fixed by heat and pressure when passing through the heat roller and the pressure roller in the fuser unit. The thermistor keeps the surface temperature of the heat roller constant by detecting the surface temperature of the heat roller and turning on or off the halogen heater lamp.

Fuser unit

Heat roller

Halogen heater

Pressure roller

Fig. 2-11

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CHAPTER 2 THEORY OF OPERATION

After the printing image on the exposure drum is transferred onto the paper, the paper is fed to the fuser unit to fix unfixed toner onto the paper by the heat roller and the pressure roller in the fuser unit.

Afterwards, the paper is ejected from the fuser unit. The paper eject actuator detects whether the paper is ejected correctly or not.

After the paper exits from the heat roller, the paper is turned by the back cover and ejected face down into the top output tray through the eject roller ASSY.

Eject roller ASSY

Back cover

Heat roller

Paper eject actuator

Pressure roller

Fig. 2-12

When a paper jam occurs, the roller in the eject roller ASSY is released to remove the jammed recording paper easily.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

3.3.7 Duplex printing (HL-5250DN/5270DN/5280DW)

After the paper exits from the eject roller ASSY with the front of sheet printed, the eject roller

ASSY rotates conversely and feeds the paper to the duplex tray, where the paper skew is adjusted.

Afterwards, the paper is ejected from the duplex tray to the path through the regist roller and the transfer roller to the transfer block in the drum unit again for process of printing on the back of sheet.

Eject roller ASSY

Heat roller

Exposure drum

Back cover

Outer chute ASSY

Pinch roller

Pressure roller

Duplex unit

Transfer roller

Regist actuator rear

Fig. 2-13

Regist actuator front

Regist roller

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CHAPTER 2 THEORY OF OPERATION

3.3.8 Paper feeding from the MP tray

The separation roller is connected with the feed roller through the gear in the MP roller holder

ASSY. When the separation roller is driven, therefore, the feed roller is also driven. At this time, the recording paper is drawn out of the MP tray by rotation of the feed roller contacted with the recording paper. The drawn recording paper is separated into individual sheets by the separation roller.

Separation roller MP

Feed roller

MP tray cover ASSY

Separation pad ASSY MP

Fig. 2-14

The motor drive is transmitted to the gear to rotate the feed roller, then the recording paper is drawn out of the LT tray. The drawn recording paper is separated into individual sheet by the separation roller and fed to the printer.

Feed roller TR

Separation roller

Separation pad

Feed roller

Paper

Fig. 2-15

Plate

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

Develops the electrostatic latent image on the exposure drum with toner and forms the visible image.

3.4.1 Toner life end mode

A new toner cartridge can print approximately 3,500 (standard toner) or approximately 7,000

(high yield toner) A4 or Letter size single-sided pages at 5% coverage. In the case of low-duty printing, “Toner Life End” is indicated by lighting Toner LED (HL-5240/5250DN) or “TONER

LIFE END” message appears on the LCD panel (HL-5270DN/5280DW) before the toner runs out because the developer roller surface or other toner sealing is worn out due to a rotation of the rollers. The upper limit of the drum rotation is 46,200 = 4,200 sheets x 11 rotations

(standard toner), 92,400 = 8,400 sheets x 11 rotations (high yield toner).

The following graph shows the number of printable pages in the case of A4 printing.

20,000

18,000

16,000

14,000

12,000

10,000

8,000

6,000

4,000

2,000

0

HL-5240/5250DN/5270DN/5280DW(Standard (3.5K) toner)

Page/job

Cartridge life

Cartridge life+ON/OFF

Toner empty (5%)

Toner empty (4%)

Toner empty (3%)

Toner empty (2%)

Toner empty (1%)

1 2 3 4 5 6 7 8 9 10 11 12

4,200 6,329 7,615 8,477 9,094 9,559 9,920 10,210 10,447 10,645 10,813 10,957

2,310 3,915 5,096 6,000 6,715 7,295 7,774 8,177 8,520 8,817 9,075 9,302

3,500 3,500 3,500 3,500 3,500 3,500 3,500 3,500 3,500 3,500 3,500 3,500

4,375 4,375 4,375 4,375 4,375 4,375 4,375 4,375 4,375 4,375 4,375 4,375

5,833 5,833 5,833 5,833 5,833 5,833 5,833 5,833 5,833 5,833 5,833 5,833

8,750 8,750 8,750 8,750 8,750 8,750 8,750 8,750 8,750 8,750 8,750 8,750

17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500

Cartridge life = 11a x 4200 / ( 3.6 x (a - 1) + 11 ) a : Page / job

Cartridge life+ON/OFF = ( 11a x 4200 ) / ( 3.6 x (a - 1) + 11 + 9 )

Cartridge life (Mechanical limit) : 4200 ( 1page / job )

Cartridge life

Cartridge life+ON/OFF

Toner empty (5%)

Toner empty (4%)

Toner empty (3%)

Toner empty (2%)

Toner empty (1%)

1 2 3 4 5 6 7

Page / Job

8 9 10 11 12

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CHAPTER 2 THEORY OF OPERATION

HL-5240/5250DN/5270DN/5280DW(High Capacity (7K) toner)

Page/job

Cartridge life

Cartridge life+ON/OFF

1 2 3 4 5 6 7 8 9 10 11 12

8,400 12,658 15,231 16,954 18,189 19,117 19,840 20,420 20,894 21,290 21,626 21,913

4,620 7,831 10,191 12,000 13,430 14,589 15,548 16,354 17,041 17,634 18,150 18,604

Toner empty (5%)

Toner empty (4%)

Toner empty (3%)

Toner empty (2%)

Toner empty (1%)

7,000 7,000 7,000 7,000 7,000 7,000 7,000 7,000 7,000 7,000 7,000 7,000

8,750 8,750 8,750 8,750 8,750 8,750 8,750 8,750 8,750 8,750 8,750 8,750

11,667 11,667 11,667 11,667 11,667 11,667 11,667 11,667 11,667 11,667 11,667 11,667

17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500 17,500

35,000 35,000 35,000 35,000 35,000 35,000 35,000 35,000 35,000 35,000 35,000 35,000

Cartridge life = 11a x 8400 / ( 3.6 x (a - 1) + 11 ) a : Page / job

Cartridge life+ON/OFF = ( 11a x 8400 ) / ( 3.6 x (a - 1) + 11 + 9 )

Cartridge life (Mechanical limit) : 8400 ( 1page / job )

40,000

35,000

30,000

Cartridge life

Cartridge life+ON/OFF

Toner empty (5%)

Toner empty (4%)

Toner empty (3%)

Toner empty (2%)

Toner empty (1%)

25,000

20,000

15,000

10,000

5,000

0

1 2 3 4 5 6 7

Page / Job

8 9

• Number of idling rotation when the printer is turned ON = 9 rotations

10

The number of rotation of the developer roller per page is as follows;

1. One printed page only or the first page of continuous printing = 11 rotations

2. The second page or later = 3.6 rotations

11 12

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Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

3.4.2 New toner detection mechanism

(1) The main motor will drive gear (4) through the interconnection of other gears.

(2) When gear (4) is rotated, rib A on that gear will push against the new toner actuator; the new toner sensor will detect the actuator motion, and the toner sensor detects that a new toner cartridge has been installed.

(3) The standard toner cartridge has Rib A and Rib B on gear (4).

When the toner actuator is pushed twice, the two signals that are generated by the new toner sensor, tell the machine that a standard toner cartridge has been installed.

(4) The high yield toner cartridge only has Rib A on gear (4).

When the toner actuator is pushed once, the signal that is generated by the new toner sensor, tell the machine that a high yield toner cartridge has been installed.

<Printer side view when a new toner cartridge is installed>

Relay front PCB ASSY

New toner actuator

Gear (4)

New toner sensor

Rib B

Rib A

Gear (3)

Gear (1)

Gear (2)

Fig. 2-16

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CHAPTER 2 THEORY OF OPERATION

When the new toner detection switch detects that the toner cartridge is replaced with a new one, the developing bias voltage is initialized at the same time.

The toner used for the printer has a property that print density is light first and gradually darker in the course of usage. The developing bias controls the toner property so that the print density is constant from first to last.

Toner property Actual control

[Density]

[Voltage]

Print density

[Density]

[Voltage]

Print density

Bias voltage

Bias voltage

[Used toner amount] [Used toner amount]

To obtain a print result of a constant density all the time, the printer counts the number of print pages immediately after the toner cartridge is replaced and changes the bias voltage according to the accumulated number of prints with the toner cartridge.

The bias voltage is changed with the steps described below:

(1) When the new toner sensor detects that the toner cartridge is replaced with a new (full) one, the developing bias is set to 400V (initialized).

(2) After that, the bias voltage is stepped down according to the number of prints.

3.4.3 Counter reset during indication of “Toner Life End”

The counter resetting method during indication of “Toner Life End” depends on the cause of toner life end and the condition of the inserted toner cartridge. Refer to the following table for details.

When a used toner is inserted (Reset gear is at the position of in use.)

Toner Life End

(Toner empty)

Toner exchange count: +0

Page counter of each toner: Continued

Coverage of each toner: Continued

Toner Life End

(Developer count full)

Not used.

When a new toner is inserted (Reset gear is at the position of factory set.)

Development bias: Reset (Default)

Toner exchange count: +1

Page counter of each toner: Reset (0)

Coverage of each toner: Reset (0)

Development bias: Reset (Default)

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

3.5.1 Charging

The drum is charged to approximately 900V by an ion charge which is generated by the primary charger. The charge is generated by ionization of the corona wire, which has a DC bias from the high-voltage power supply applied to it. The flow of the ion charge is controlled by the grid to ensure it is distributed evenly on the drum surface. The aluminum drum sleeve in the exposure drum is grounded.

Voltage circuit

+

+

+

-

-

-

+

+

--

-- - - - -

+ + + +

+

+

+

+

+

+

+

+

+

+ +

+

Aluminum drum sleeve

Organic photoconductor layer

Grid

Exposure drum

HVPS

Corona wire

Fig. 2-17

The primary charge uses a corona wire, but since the drum is positively charged, only less than

1/10 of the usual quantity of ozone is generated compared with the negatively charged drum.

The level of ozone expelled from the printer is therefore not harmful to the human body.

Applicable safety standards have been complied with.

After the drum is positively charged, it is exposed to the light emitted from the laser unit.

Drum

Laser beam

Paper

Laser detector

Toric Lens

Laser beam f

θ

lens

Polygon mirror

Laser diode

Motor

CO Lens

Fig. 2-18

< Laser exposure unit >

1. The laser beam radiated from a laser diode inside the laser unit are concentrated into a constant width by a slit in the CO lens cell and then reflected by a polygon mirror rotating at high speed.

2. The laser beam reflected by the polygon mirror are refracted by the f-theta lens and radiated from the right through to the left end of the reflection mirror as the polygon mirror rotates. At this time, blur of the vertical direction of the laser beam by inclination of a polygon mirror is corrected by passing a Toric lens.

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CHAPTER 2 THEORY OF OPERATION

3. The laser beams reflected by the reflection mirror go straight toward the exposure drum below it, then expose the exposure drum.

The area exposed to the laser beam is the image to be printed. The surface potential of the exposed area is reduced, forming the electrostatic image to be printed.

Surface potential (V)

1 Cycle of drum

+900

1 2

(a)

3

+400

+100

(b)

1

2

3

Primary charging

Laser beam exposure and developing

(a) Unexposed area

(Non image area)

(b) Exposed area

(Image area)

Transfer the image to paper

Drum sleeve

0

Time

Fig. 2-19

3.5.3 Transfer

After the drum has been charged and exposed, and has received a developed image, the toner formed is transferred onto the paper by applying a negative charge to the back of the paper. The negative charge applied to the paper causes the positively charged toner to leave the drum, and adhere to the paper. As a result, the image is visible on the paper.

(2) Cleaning process of transfer roller

If the toner is not transferred onto the paper perfectly it is possible that there may be residual toner on the drum which will adhere to the transfer roller. The transfer roller voltage changes to a positive voltage during non-printing rotation of the drum. Therefore the transfer roller is cleaned by returning the positively charged toner adhering to the transfer roller onto the exposure drum.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

3.6 Sensors

Sensor name

Regist front sensor

Regist rear sensor

Paper eject sensor

New toner sensor

Toner LED PCB

(Light emission)

Toner sensor PCB

(Light reception)

Front cover sensor

PE sensor

Edge sensor

MP PE sensor

DX tray sensor

Type

Photo sensor

Photo sensor

Photo sensor

Photo sensor

Photo sensor

Photo sensor

Mechanical switch

Photo sensor

Photo sensor

Photo sensor

Mechanical switch

Front cover sensor

Chute

Located on

High-voltage PS PCB

High-voltage PS PCB

Relay rear PCB

Relay front PCB

Frame R

Frame L

Frame L

PE EG sensor ASSY

PE EG sensor ASSY

MP PE sensor ASSY

Relay rear PCB

Frame R

Toner LED PCB

(Light emission)

Frame L

Paper eject sensor

(Relay rear PCB)

Regist frame

Paper feed frame

MP PE sensor

PE EG sensor

DX tray sensor

New toner sensor

(Relay front PCB)

Toner sensor PCB

(Light reception)

Regist rear sensor

High-voltage PS PCB

Fig. 2-20

Regist front sensor

PE sensor

Edge sensor

2-23

Confidential

CHAPTER 2 THEORY OF OPERATION

3.7 Heat Control of Fuser Unit

The printer controls the temperature in the fuser unit in order to keep the constant image quality when printing on any type or size of paper.

< Fixing temperature of each media type >

Media type

Fixing temperature (°C)

(approximately)

[Full speed / Half speed]

Plain paper

Plain paper (Small size)

Plain paper (Duplex)

Recycled paper

213/185

200/185

195/180

195/180

Recycled paper (Small size)

Recycled paper (Duplex)

189/170

189170

OHP 185

OHP (Small size)

OHP (Duplex)

185

185

Thin paper

Thin paper (Small size)

Thin paper (Duplex)

Thick paper

Thick paper (Small size)

Thick paper (Duplex)

195

195

181

200

195

195

Envelope (Thin)

Envelope (Thin, small size)

Envelope (Thin, duplex)

Envelope (Others)

Envelope (Others, small size)

Envelope (Others, duplex)

200

200

195

220

220

205

NOTE:

The values described in the table above are approximate and vary depending on the conditions such as the operation environment or the like.

2-24

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

CHAPTER 3 PERIODIC MAINTENANCE

To avoid creating secondary problems by mishandling, follow the warnings below during maintenance work.

WARNING

If your clothes are smeared with toner, wipe the toner with a dry cloth immediately and wash the clothes in cold water to avoid stains.

Be careful to inhale toner.

Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the printer.

Some parts inside the printer are extremely hot immediately after the printer is used.

When opening the front cover or back cover to access any parts inside the printer, never touch the shaded parts shown in the following figures.

1. CONSUMABLE PARTS

The consumable parts described in this section are parts which are subject to deterioration or damage and should be replaced at least once during the period of warranty of the product if any printing quality problem appears.

A new toner cartridge can print up to 3,500 (standard cartridge) or up to 7,000 (high yield cartridge) A4 or Letter size single-sided pages at about 5% coverage.

NOTE:

* The amount of toner used varies according to what is printed on the page and the print density setting.

* If the print density setting for lighter or darker printing is changed, the amount of toner used will change.

* Wait to unpack the toner cartridge until immediately before putting it into the printer.

* There are many factors that determine the actual toner life, such as temperature, humidity, type of paper used, the number of pages per print job, etc.

3-1

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CHAPTER 3 PERIODIC MAINTENANCE

<Toner Low Message>

(HL-5240/5250DN)

The

Toner

LED alternates turning on for 2 seconds and off for 3 seconds.

Fig. 3-1

If the LED shows this message, the printer has nearly run out of toner. Buy a new toner cartridge and have it ready before you get a “Toner Life End” message.

NOTE:

The

Toner

LED will blink continuously if the toner cartridge is nearly empty.

(HL-5270DN/5280DW)

Appears at intervals.

TONER LOW

If the LCD shows “TONER LOW”, the printer has nearly run out of toner. Buy a new toner cartridge and have it ready before you get a “TONER LIFE END” message.

<Toner Life End Message>

(HL-5240/5250DN)

If the LED shows the message below, the printer has run out of toner or the toner is not evenly distributed inside the cartridge.

Fig. 3-2

(HL-5270DN/5280DW)

Appears at intervals.

TONER LIFE END

If the LCD shows “TONER LIFE END”, the printer has run out of toner or the toner is not evenly distributed inside the cartridge.

In both situations, the printer will stop printing until a new toner cartridge has been put into the printer. “TONER LIFE END” can only be cleared by putting a new toner cartridge into the drum unit.

3-2

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

<Replacement Procedure>

NOTE:

* To ensure high quality printing, make sure to use genuine Brother toner cartridges.

* It is recommended to clean the printer when replacing the toner cartridge.

(1) Press the front cover release button and then open the front cover.

Fig. 3-3

(2) Take out the drum unit and toner cartridge assembly.

Fig. 3-4

!

CAUTION:

* We recommend that you put the drum unit and toner cartridge assembly on a piece of disposable paper or cloth in case you accidentally spill or scatter toner.

* To prevent damage to the printer from static electricity, DO NOT touch the electrodes shown in the illustration.

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CHAPTER 3 PERIODIC MAINTENANCE

(3) Push down the blue lock lever and take the toner cartridge out of the drum unit.

Fig. 3-5

!

CAUTION:

* Handle the toner cartridge carefully. If toner scatters on your hands or clothes, wipe or wash it off with cold water at once.

* To avoid any degradation of the print quality, DO NOT touch the shaded parts shown in the illustrations.

NOTE:

* Be sure to seal up the toner cartridge tightly in a bag so that toner powder does not spill out of the cartridge.

* Discard the used toner cartridge according to local regulations, keeping it separate from domestic waste. If you have questions, call your local waste disposal office.

(4) Unpack the new toner cartridge. Hold the cartridge level with both hands and gently rock it from side to side five or six times to spread the toner evenly inside the cartridge.

Fig. 3-6

3-4

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

!

CAUTION:

* Wait to unpack the toner cartridge until immediately before you put it in the printer. If toner cartridges are left unpacked for a long time the toner life will be shortened.

* If an unpacked drum unit is put in direct sunlight or room light, the unit may be damaged.

* Brother strongly recommends that you do not refill the toner cartridge provided with your printer. We also strongly recommend that you continue to use only genuine Brother brand replacement toner cartridges. Using or trying to use potentially incompatible toner and/or toner cartridges in your printer may cause damage to the printer itself and/or may result in unsatisfactory print quality. Our warranty coverage does not apply to any problem that was caused by the use of unauthorized third party toner and toner cartridges. To protect your investment and guarantee print quality, continue to replace consumed toner cartridges with only genuine Brother branded supplies.

* Printing with a third-party toner or third-party toner cartridge may reduce not only the print quality but also the quality and life of the printer itself. It may also cause serious damage to the performance and life of the drum unit. Warranty coverage does not apply to problems caused by the use of third-party toner or third-party toner cartridges.

* Put the toner cartridge in the drum unit immediately after you have removed the protective cover. To prevent any degradation to the print quality, DO NOT touch the shaded parts shown in the illustrations.

(5) Pull off the protective cover.

Fig. 3-7

(6) Put the new toner cartridge firmly into the drum unit until you hear it lock into place. If you put it in properly, the lock lever will lift automatically.

Fig. 3-8

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Confidential

CHAPTER 3 PERIODIC MAINTENANCE

!

CAUTION:

Make sure that you put in the toner cartridge properly or it may separate from the drum unit.

(7) Clean the primary corona wire inside the drum unit by gently sliding the blue tab from right to left and left to right several times.

Home position

Fig. 3-9

!

CAUTION:

Be sure to return the tab to the home position ( ▲ ). If you do not, printed pages may have a vertical stripe.

(8) Put the drum unit and toner cartridge assembly back in the printer. Close the front cover.

Fig. 3-10

3-6

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

A new drum unit can print approximately 25,000 A4 or Letter size single-sided pages at 5% coverage.

NOTE:

* There are many factors that determine the actual drum life, such as the temperature, humidity, type of paper, type of toner used, number of pages per print job and so on. Under ideal conditions, the average drum life is estimated at approximately 25,000 pages. The actual number of pages that your drum will print may be significantly less than this estimate.

Because we have no control over the many factors that determine the actual drum life, we cannot guarantee a minimum number of pages that will be printed by your drum.

* For the best performance, use only genuine Brother toner. The printer should be used only in a clean, dust-free environment with adequate ventilation.

* Printing with a third-party drum unit may reduce not only the print quality but also the quality and life of the printer itself. Warranty coverage does not apply to problems caused by the use of a third-party drum unit.

<Change Drum Message>

(HL-5240/5250DN)

If the LED shows the message below, it means the drum unit is near the end of its life.

We recommend that you replace the drum unit with a new one before there is a noticeable deterioration in the print quality.

Fig. 3-11

(HL-5270DN/5280DW)

Appears at intervals.

DRUM NEAR END

If the LCD shows “DRUM NEAR END”, it means the drum unit is near the end of its life. We recommend that you replace the drum unit with a new one before there is a noticeable deterioration in the print quality.

3-7

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CHAPTER 3 PERIODIC MAINTENANCE

<Replacement Procedure>

!

CAUTION:

* While removing the drum unit, handle it carefully as it may contain toner.

* Every time you replace the drum unit, be sure to clean the inside of the printer.

When you replace the drum unit with a new one, you need to reset the drum counter by completing the following steps:

(HL-5240/5250DN)

(1) Make sure that the printer is turned on and the

Drum

LED is blinking. Press the front cover release button and then open the front cover.

(HL-5270DN/5280DW)

(1) Make sure that the LCD shows “DRUM NEAR END”. Press the front cover release button and then open the front cover.

Fig. 3-12

(HL-5240/5250DN)

(2) Press and hold down

Go

for about 4 seconds until all the LEDs light up. Once all four

LEDs are lit, release

Go

.

Fig. 3-13

3-8

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(HL-5270DN/5280DW)

(2) Hold down

Go

until the message “DRUM CLEAR” is displayed on the LCD, then release

Go

.

Fig. 3-14

Improper Setup:

Do not reset the drum counter when you only replace the toner cartridge.

(3) Take out the drum unit and toner cartridge assembly.

Fig. 3-15

!

CAUTION:

* We recommend that you put the drum unit and toner cartridge assembly on a piece of disposable paper or cloth in case you accidentally spill or scatter toner.

* To prevent damage to the printer from static electricity, DO NOT touch the electrodes shown in the illustration.

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CHAPTER 3 PERIODIC MAINTENANCE

(4) Push down the blue lock lever and take the toner cartridge out of the drum unit.

Fig. 3-16

!

CAUTION:

* Handle the toner cartridge carefully. If toner scatters on your hands or clothes, wipe or wash it off with cold water at once.

* To avoid any degradation of the print quality, DO NOT touch the shaded parts shown in the illustrations.

NOTE:

* Be sure to seal up the toner cartridge tightly in a bag so that toner powder does not spill out of the cartridge.

* Discard the used toner cartridge according to local regulations, keeping it separate from domestic waste. If you have questions, call your local waste disposal office.

(5) Unpack the new drum unit.

!

CAUTION:

Wait to unpack a drum unit until immediately before you put it in the printer. Exposure to direct sunlight or room light may damage the drum unit.

3-10

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(6) Put the toner cartridge firmly into the new drum unit until you hear it lock into place. If you put the cartridge in properly, the blue locklever will lift automatically.

Fig. 3-17

!

CAUTION:

Make sure that you put in the toner cartridge properly, or it may separate from the drum unit.

(7) Put the drum unit and toner cartridge assembly back in the printer.

Fig. 3-18

(HL-5240/5250DN)

(8) Close the front cover.

Make sure that the

Drum

LED is now off.

(HL-5270DN/5280DW)

(8) Close the front cover. Make sure that the “DRUM NEAR END” message on the LCD in now off.

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CHAPTER 3 PERIODIC MAINTENANCE

2. PERIODICAL REPLACEMENT PARTS

2.1 Periodical Replacement Parts

Periodical replacement parts are the parts to be replaced periodically to maintain product quality. These parts would affect the product quality greatly if they lost their function even if they do not appear to be damaged or there is no change in their appearance.

The periodical replacement parts listed below should be replaced at the service center referring to the service life.

Parts Name

LCD Message

(HL-5270DN

/5280DW)

Qty

Approximate Life *1

(number of prints)

Replacement

Procedure

Fuser Unit

Laser Unit

REPLACE FUSER

REPLACE LASER

pages subscription

2.2.1, Chapter 3

Paper feeding kit for Tray 1 *3

Paper feeding kit for Tray 2 *3

Paper feeding kit for Tray 3 *3

Paper feeding kit for MP tray *2

REPLACE PF KIT1

REPLACE PF KIT2

REPLACE PF KIT3

REPLACE PF

KITMP

subscription

2.2.2, Chapter 3

subscription

2.2.3, Chapter 3

NOTE:

*1

At 5% print coverage (A4 or Letter size). The actual number of printed pages will vary depending on the print jobs and paper you use.

*2

Paper feeding kit MP means the MP roller holder ASSY and the separation pad ASSY MP.

*3

Paper feeding kit for Tray 1, Tray 2 and Tray 3 means the roller holder ASSY, the separation pad ASSY and the separation pad spring. Tray 1, Tray 2 and Tray 3 are the same kit.

NOTE:

* Always turn off the power switch of the printer and unplug the power cord from the power outlet before replacing the periodical replacement parts.

* If the Fuser Unit is replaced after errors related to the Fuser Unit occur, it is necessary to leave the printer power ON for ten minutes after part replacement. This will make the printer to be released from errors.

* To reset the count of each periodical replacement parts, refer to “2.IF YOU REPLACE THE

PERIODICAL MAINTENANCE PARTS”, Chapter 6 .

* After disconnecting flat cables, check that each cable is not damaged at its end or shortcircuited.

* When connecting flat cables, do not insert them at an angle. After insertion, check that the cables are not at an angle.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

2.2 Procedures to Replace Periodical Replacement Parts

2.2.1 Fuser unit and laser unit

< Uninstalling Procedure >

(1) Disconnect the AC cord from the Printer.

<Back side>

Printer

AC cord

2

Fig. 3-19

(2) Press the front cover release button.

(3) Open the Front cover.

(4) Remove the Drum/toner ASSY.

Printer

3

<Front side>

Drum/toner ASSY

4

Front cover

Fig. 3-20

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CHAPTER 3 PERIODIC MAINTENANCE

(5) Remove the DX feed ASSY or DX blank cover.

<Back side>

DX feed ASSY/ DX blank cover

Fig. 3-21

(6) Close the Front cover.

(7) Pull out the Paper tray.

(8) Remove the paper if it is remained in the Paper tray.

Front cover

6

<Front side>

7

Paper tray

Fig. 3-22

3-14

Confidential

(9) Open the Back cover.

(10) Remove the Arms of the Back cover from the Pins.

(11) Remove the Back cover.

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

Pin

<Back side>

10

9

11

Pin

Back cover

Fig. 3-23

(12) Hold the Knobs on the Outer chute ASSY and pull down this to your side.

(13) Remove the Arms of the Outer chute ASSY from the Pins.

(14) Remove the Outer chute ASSY.

Pin

<Back side>

13

Pin

12

12

14

3

Knob

Knob

Outer chute ASSY

Fig. 3-24

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CHAPTER 3 PERIODIC MAINTENANCE

(15) Open the Front cover, remove the two bind B M4x12 Taptite screws, and then remove the

Side cover L by releasing the Hooks in the order of 15a to 15d.

Taptite, bind B M4x12

Hook

Side cover L

15d

<Front side>

15a

Front cover

Taptite, bind B M4x12

Hooks

15c

15b

Fig. 3-25

Hooks

(16) Remove the four cup S M3x6 SR Taptite screws to remove the Shield cover and the FG harness.

Taptite, cup S M3x6 SR

Taptite, cup S M3x6 SR

Shield cover

FG harness

Fig. 3-26

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(17) Remove the two bind B M4x12 Taptite screws, and then remove the Side cover R by following the direction from 17a to 17d.

Taptite, bind B M4x12

Hook

Shield cover R

17d

Hook

17a

Taptite, bind B M4x12

Hooks

17c

Hooks

Hooks

17b

<Front side>

Fig. 3-27

(18) Disconnect the Connector of the Panel PCB.

Top cover printed ASSY

Panel PCB

Connector

Main PCB

Fig. 3-28

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CHAPTER 3 PERIODIC MAINTENANCE

(19) Remove the two bind B M4x12 Taptite screws from Top cover printed ASSY.

(20) Release all Hooks of the Top cover printed ASSY and lift up the front side of the Top cover printed ASSY.

(21) Remove the Top cover printed ASSY.

Hooks

Top cover printed ASSY

Hooks

Hooks

21

20

Hook

Hook

Hook

Fig. 3-29

Taptite, bind B M4x12

(22) Remove the bind B M4x16 Taptite screw. Release the Hooks in the order of 22a, 22b and

22c. Remove the FU harness cover 1.

22a

22b

22c

<Back side>

Taptite, bind B M4x16

FU harness cover 1

Hooks

Fig. 3-30

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(23) Remove the Heater terminal L and Heater terminal S from the Fuser unit while holding the

Fuser unit.

Heater terminal L

Fuser unit

Heater terminal S

Fig. 3-31

(24) Pull the FU harness cover 2 to the direction of 24a while pressing the Hook and pull out the FU harness cover 2 from the back of the printer.

24b

24a

FU harness cover 2

Hook

Fig. 3-32

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CHAPTER 3 PERIODIC MAINTENANCE

(25) Disconnect the connectors of the Thermistor ASSY M and Thermistor ASSY S from the

Relay rear PCB ASSY, and remove the harnesses of these thermistors.

Thermistor ASSY M

Fuser unit

Thermistor ASSY S

Relay rear PCB ASSY

Fig. 3-33

(26) Remove the cup B M4x16 Taptite screw to remove the Fuser unit.

Taptite, cup B M4x16

Fig. 3-34

3-20

Fuser unit

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(27) Slide the Sub duct to the direction of 27b while pressing the three Hooks and remove the

Sub duct from the Air duct.

Air duct

Filter

27b

27a

Hooks

Sub duct

Fig. 3-35

(28) Remove the Filter from the Air duct.

NOTE:

The filter is dirt. Be careful when disassembling or assembling it.

Air duct

Filter

Fig. 3-36

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CHAPTER 3 PERIODIC MAINTENANCE

(29) Remove the Pin of the Air duct from the frame. Slide the Air duct to the direction of 29b and remove the Air duct.

Pin

Laser unit

29a

Hook

29b

3

Hook

Air duct

Fig. 3-37

Pin

Pin

3-22

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(30) Remove the six cup S M3x6 Taptite screws.

(31) Remove the two Flat cable from the Main PCB.

NOTE:

After disconnecting flat cable(s), check that each cable is not damaged at its end or short-circuited.

(32) Remove the Protective film.

(33) Pull out the flat cable from the Core.

(34) Remove the Laser unit.

NOTE:

- Be careful not to lose the Protective film attached on the flat cable.

- Do not touch the Laser scanner window directly.

Polygon motor

(Flat cable)

Laser unit

LD harness

(Flat cable)

Taptite, cup S M3x6

Taptite, cup S M3x6

Core

Laser unit

LD harness

(Flat cable)

Main PCB

Polygon motor

(Flat cable)

Protective film

Fig. 3-38

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CHAPTER 3 PERIODIC MAINTENANCE

< Installing Procedure >

(1) Secure the Laser unit with the six cup S M3x6 Taptite screws.

(2) Put the flat cable through the Core and Protective film.

(3) Install the flat cable. (Refer to

“4. HARNESS ROUTING” in Chapter 5 .)

NOTE:

When connecting flat cable(s), do not insert them at an angle. After insertion, check that the cables are not at an angle.

Laser unit

Taptite, cup S M3x6

Core

Protective film

Taptite, cup S M3x6

Fig. 3-39

(4) Install the Air duct into the Laser unit.

Laser unit

Hook

4b

4a

Hook

Air duct

Fig. 3-40

Pin

Pin

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Confidential

(5) Install the Filter into the Air duct.

Filter

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

Air duct

Fig. 3-41

(6) Install the Sub duct into the Air duct.

Air duct

Filter

6b

6a

Hooks

Fig. 3-42

Sub duct

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CHAPTER 3 PERIODIC MAINTENANCE

WARNING

DO NOT subject the fuser unit to strong physical shocks or vibrations.

DO NOT touch the rollers and the electrodes to prevent damage to the fuser unit In the following figures.

!

CAUTION:

To prevent the deformation of the pressure roller, the fuser unit spare part is shipped with its pressure roller at low nip pressure. Before installing the fuser unit, turn back the levers to the normal position by following instructions below.

( 1 ) Put the fuser unit on a flat, horizontal surface. Pull up each of the blue tab (a) on the right side and left side.

(a)

(b)

(2) Make sure that the black lever (b) is in the position in the illustration below.

(a)

(b)

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(7) Secure the Fuser unit with the bind B M4x16 Taptite screw.

Taptite, bind B M4x16

Fuser unit

Fig. 3-43

(8) Connect the connectors of the Thermistor ASSY M and Thermistor ASSY S onto the relay rear PCB ASSY.

Thermistor ASSY M

Fuser unit

Thermistor ASSY S

Relay rear PCB ASSY

Fig. 3-44

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CHAPTER 3 PERIODIC MAINTENANCE

(9) Install the FU harness cover 2.

9b

9a

FU harness cover 2

Hook

Fig. 3-45

(10) Install the Heater terminal L and Heater terminal S.

Fuser unit

Heater terminal L

Fig. 3-46

Heater terminal S

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(11) Secure the FU harness cover 1 with the bind B M4x16 Taptite screw.

11b

11a

Taptite, bind B M4x16

FU harness cover 1

Hooks

Fig. 3-47

(12) Secure the Top cover printed ASSY with the two bind B M4x12 Taptite screws.

Hooks

Top cover printed ASSY

Hooks

Hooks

12a

12b

Hook

Hook

Hook

Fig. 3-48

Taptite, bind B M4x12

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CHAPTER 3 PERIODIC MAINTENANCE

(13) Connect the Connector of the Panel PCB.

Top cover printed ASSY

Panel PCB

Connector

Main PCB

Fig. 3-49

(14) Catch the Hooks in the order of the arrows and secure the Side cover R with the two bind

B M4x12 Taptite screws.

Taptite, bind B M4x12

Hook

Side cover R

14a

Hook

14d

Taptite, bind B M4x12

Hooks

14b

Hooks

Hooks

14c

Fig. 3-50

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(15) Secure the Shield cover and FG harness with the four cup S M3x6 SR Taptite screws.

Taptite, cup S M3x6 SR

Shield cover

Taptite, cup S M3x6 SR

FG harness

Fig. 3-51

(16) Catch the Hooks in the order of the arrows and secure the Side cover L with the two bind

B M4x12 Taptite screws.

Taptite, bind B M4x12

Hook

Side cover L

16a

16d

Hooks

16b

16c

Fig. 3-52

Hooks

Front cover

Taptite, bind B M4x12

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CHAPTER 3 PERIODIC MAINTENANCE

(17) Catch the Arm of the Outer chute ASSY onto the Pin of the machine body and install the

Outer chute ASSY.

Pin

17b

17c

17a

Outer chute ASSY

Pin

Fig. 3-53

(18) Catch the Arm of the Back cover onto the Pin of the machine body and install the Back cover.

Pin

18b

18c

18a

Pin

Back cover

Fig. 3-54

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(19) Install the DX feed ASSY or DX blank cover.

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

DX feed ASSY/ DX blank cover

Fig. 3-55

(20) Install the Drum/toner ASSY into the Printer.

(21) Close the Front cover.

Printer

21

Drum /toner ASSY

20

Front cover

Fig. 3-56

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CHAPTER 3 PERIODIC MAINTENANCE

(22) Put the Paper tray into the Printer.

Paper tray

Fig. 3-57

(23) Connect the AC cord into the Printer.

Fig. 3-58

AC cord

Printer

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2.2.2 Paper feeding kit for tray 1, 2, 3

< Uninstalling Procedure >

(1) Disconnect the AC cord from the Printer.

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

<Back side>

Printer

AC cord

Fig. 3-59

(2) Press the front cover release button.

(3) Open the Front cover.

(4) Remove the Drum/toner ASSY.

2

Printer

3

<Front side>

Drum/toner ASSY

4

Front cover

Fig. 3-60

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CHAPTER 3 PERIODIC MAINTENANCE

(5) Remove the DX feed ASSY or DX blank cover.

<Back side>

DX feed ASSY/ DX blank cover

Fig. 3-61

(6) Close the Front cover.

(7) Pull out the Paper tray.

(8) Remove the paper from the Paper tray.

Paper tray

Fig. 3-62

3-36

Front cover

6

<Front side>

7

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(9) Pull up the back side of the Separation pad ASSY.

(10) Push the Hooks provided on both sides of the Separation pad ASSY inwards.

(11) Pull up the Separation pad ASSY.

(12) Remove the Separation pad spring.

Separation pad ASSY

Hooks

10

Hook

Hook

10

11

Separation pad spring

9

Fig. 3-63

Paper tray

<Front side>

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CHAPTER 3 PERIODIC MAINTENANCE

(13) Turn the Printer upside down.

NOTE:

Pull out and put into the paper tray so that the Roller holder ASSY is lowered.

If the Roller holder ASSY is remained up, it cannot be removed.

(14) Push the Lift arm to the direction of the arrow 14a and pull out the pin of the Roller holder

ASSY. Then, turn the Roller holder ASSY to the direction of the arrow 14b.

Lift arm

Pin

Roller holder ASSY

Paper feed frame

14b

14a

Fig. 3-64

(15) Slide the Roller holder ASSY to the direction of the arrow 15a. Then, lift up the gear side of the Roller holder ASSY to the direction of the arrow 15b and pull it out to the direction of the arrow 15c to remove.

Roller holder ASSY

15c

15b

15a

Paper feed frame

Fig. 3-65

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

< Installing Procedure >

(1) Install the Roller holder ASSY.

NOTE:

When assembling the roller holder ASSY, align the section “A” on the shaft of the roller holder ASSY with the hole on the paper feed frame.

Roller holder ASSY

“A”

1a

1b

1c

Paper feed frame

Fig. 3-66

(2) Assemble the Lift arm onto the Pin of the Roller holder ASSY.

(3) Place the Printer on its base.

Lift arm

Pin

Roller holder ASSY

Paper feed frame

2a

2b

Fig. 3-67

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CHAPTER 3 PERIODIC MAINTENANCE

(4) Install the DX feed ASSY or DX blank cover.

DX feed ASSY/ DX blank cover

Fig. 3-68

(5) Install the Drum /toner ASSY, and close the Front cover.

Printer

Front cover

Fig. 3-69

5a

5b

Drum /toner ASSY

3-40

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(6) Set the Separation pad spring.

(7) Put the Hooks of the Separation pad ASSY into the Paper tray, and turn the Separation pad ASSY to the direction of the arrow 7c to catch the Hooks into the Paper tray.

NOTE:

Check that the Separation pad spring is assembled correctly.

Hooks

Separation pad ASSY

7b

Hook

7b

Hook

Separation pad spring

7a

7c

Paper tray

(8) Put the Paper tray into the Printer.

Fig. 3-70

Paper tray

Fig. 3-71

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CHAPTER 3 PERIODIC MAINTENANCE

(9) Connect the AC cord into the Printer.

Fig. 3-72

AC cord

Printer

3-42

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2.2.3 Paper feeding kit for MP tray

< Uninstalling Procedure >

(1) Disconnect the AC cord from the Printer.

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

<Back side>

Printer

AC cord

Fig. 3-73

(2) Press the front cover release button.

(3) Open the Front cover.

(4) Remove the Drum/toner ASSY.

2

3

Printer

<Front side>

Drum/toner ASSY

4

Front cover

Fig. 3-74

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CHAPTER 3 PERIODIC MAINTENANCE

(5) Open the MP feed frame cover.

MP feed frame cover

MP feed frame

Front cover

Fig. 3-75

(6) Remove the Holder bearing MP.

Holder bearing MP

Hook

Fig. 3-76

6c

6a

6b

MP feed frame

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(7) Lift up the Lift arm MP to release it from the Pin of the MP roller holder ASSY.

(8) Slide the MP roller holder ASSY to the direction of the arrow 8a and put it up to remove.

Pin

MP roller holder ASSY

Lift arm MP

7

8b

8a

MP feed frame

Fig. 3-77

(9) Turn the back side of the Separation pad ASSY MP to the direction of the arrow 9a and put it up to remove.

Separation pad ASSY MP

MP feed frame

9b

9a

MP frame

Fig. 3-78

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CHAPTER 3 PERIODIC MAINTENANCE

< Installing Procedure >

(1) Put the Hook of the Separation pad ASSY MP into the MP feed frame and pull down the

Separation pad ASSY MP to the direction of the arrow 1b until it is locked.

Separation pad ASSY MP

MP feed frame

1a

1b

MP frame

Fig. 3-79

(2) Lift up the Lift arm MP and put the MP roller holder ASSY into the MP feed frame. Put the

Pin of the MP roller holder ASSY into the hole of the Lift arm MP.

Pin

MP roller holder ASSY

Lift arm MP

MP feed frame

Fig. 3-80

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(3) Put the Holder bearing MP into the MP feed frame and turn the Holder bearing MP to the direction of the arrow 3c to lock.

Holder bearing MP

Hook

3c

3b

3a

(4) Close the MP feed frame cover.

Fig. 3-81

MP feed frame cover

MP feed frame

MP feed frame

Fig. 3-82

3-47

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CHAPTER 3 PERIODIC MAINTENANCE

(5) Install the Drum/toner ASSY into the Printer.

(6) Close the Front cover.

Printer

Front cover

Fig. 3-83

(7) Connect the AC cord into the Printer.

6

Drum /toner ASSY

5

Fig. 3-84

AC cord

Printer

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

3. PERIODICAL CLEANING

Clean the outside and inside of the printer regularly with a dry soft cloth. When you replace the toner cartridge or the drum unit, make sure you clean the inside of the printer. If printed pages are stained with toner, clean the inside of the printer with a dry soft cloth.

!

CAUTION:

While drum/toner ASSY and scanner window cleaning can be implemented by the end user, the electrical terminals inside the printer and on the drum/toner ASSY should be cleaned by a service technician. Instruct the users not to touch those terminals.

WARNING

There are high voltage electrodes inside the printer. Before cleaning the printer, make sure that the power switch has been turned off and the power cord has been unplugged from the power outlet.

3.1 Cleaning the Inside of the Printer

(1) Turn off the printer power switch and then unplug the printer.

Fig. 3-85

(2) Press the front cover release button and then open the front cover.

Fig. 3-86

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CHAPTER 3 PERIODIC MAINTENANCE

(3) Take out the drum unit and toner cartridge assembly.

Fig. 3-87

HOT SURFACE:

After you have just used the printer, some internal parts of the printer will be extremely hot.

Wait for the printer to cool down before you touch the internal parts of the printer.

!

CAUTION:

* We recommend that you put the drum unit and toner cartridge assembly on a piece of disposable paper or cloth in case you accidentally spill or scatter toner.

* Handle the toner cartridge carefully. If toner scatters on your hands or clothes, wipe or wash it off with cold water at once.

* To prevent damage to the printer from static electricity, DO NOT touch the electrodes shown in the illustration.

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Confidential

(4) Wipe the scanner window with a dry, lint-free cloth.

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

Fig. 3-88

(5) Put the drum unit and toner cartridge assembly back in the printer.

(6) Close the front cover.

(7) Plug the printer back in, and then turn on the power switch.

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CHAPTER 3 PERIODIC MAINTENANCE

3.2 Cleaning the Corona Wire

!

CAUTION:

It is recommended to place the drum/toner ASSY on a piece of disposable paper or cloth in case you accidentally spill or scatter toner.

If you have print quality problems, clean the corona wire as follows:

(1) Press the front cover release button and then open the front cover.

Fig. 3-89

(2) Take out the drum unit and toner cartridge assembly.

Fig. 3-90

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

!

CAUTION:

* We recommend that you put the drum unit and toner cartridge assembly on a piece of disposable paper or cloth in case you accidentally spill or scatter toner.

* To prevent damage to the printer from static electricity, DO NOT touch the electrodes shown in the illustration.

(3) Clean the primary corona wire inside the drum unit by gently sliding the blue tab from right to left and left to right several times.

Home position

Fig. 3-91

!

CAUTION:

Be sure to return the tab to the home position. If you do not, printed pages may have a vertical stripe.

(4) Put the drum unit and toner cartridge assembly back in the printer. Close the front cover.

Fig. 3-92

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

CHAPTER 4 TROUBLESHOOTING

1. INTRODUCTION

Check if :

The source voltage stays within ±10% from the rated voltage shown on the rating plate.

The printer is installed on a solid, level surface.

• The room temperature is maintained between 10°C and 32.5°C. The relative humidity is maintained between 20% and 80%.

• The printer is not located in a dusty place.

The printer is not exposed to ammonia fumes or other harmful gases.

The printer is not located in a hot or humid area (such as near water or a humidifier).

The printer is not exposed to direct sunlight.

• The room is well-ventilated.

• The printer is not placed where the ventilation hole of the printer is blocked.

Check if :

A recommended type of print paper is being used. [If the paper is too thick or too thin, or tends to curl, paper jams or paper feed problems may occur, or printed images may be blurred.]

The print paper is damp. [If so, use fresh paper, and check whether the print quality improves or not.]

• The print paper is short-grained paper or acid paper. [If so, print quality problems may occur.]

For further information on paper, refer to 3.6 “Paper” in Chapter 1 .

Check if :

(HL-5240/5250DN)

The LEDs on the printer control panel indicate “Toner Life End”. If the LEDs indicate

“Toner Life End”, replace the toner cartridge with a new one.

(HL-5270DN/5280DW)

• The LCD shows “TONER LIFE END” the printer has run out of the toner is not evenly distributed inside the cartridge.

For further information on consumable parts, refer to 1. “CONSUMABLE PARTS” in

Chapter 3 .

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CHAPTER 4 TROUBLESHOOTING

(4) Others

Condensation:

When the printer is moved from a cold room into a warm room in cold weather, condensation may occur inside the printer, causing various problems as listed below:

• Condensation on the optical surfaces such as the scanning mirror, lenses, the reflection mirror and the protection glass may cause the print image to be light.

• If the exposure drum is cold, the electrical resistance of the photosensitive layer is increased, making it impossible to obtain the correct contrast when printing.

Condensation on the corona unit may cause corona charge leakage.

Condensation on the pressure plate and separation pad may cause paper feed troubles.

If condensation has occurred, print several pages or leave the printer for 2 hours to allow it to reach room temperature.

If the drum unit is unpacked soon after it is moved from a cold room to a warm room, condensation may occur inside the unit, which may cause incorrect images. Instruct the user to allow the unit to come to room temperature before unpacking it. This will take one or two hours.

1.2 Warning for Maintenance Work

To avoid creating secondary problems by mishandling, follow the warnings below during maintenance work.

WARNING

Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the printer.

Some parts inside the printer are extremely hot immediately after the printer is used.

When opening the front cover or back cover to access any parts inside the printer, never touch the shaded parts shown in the following figures.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

1.3 Identify the Problem

If you encounter any printer error or problem, first identify it referring to the chart below, then see the appropriate section.

NOTE:

The following troubleshooting sections contain both the actions which users should take or check and the ones which service technicians should perform.

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CHAPTER 4 TROUBLESHOOTING

2. ERROR MESSAGE

2.1.1 Operator calls for HL-5240/5250DN

When an operator call occurs, the red

Status

LED blinks to indicate. An ‘operator call’ which the printer indicates on the LEDs is user recoverable. Identify the error from the table below and take the corrective action described for each indication to correct it. The printer automatically recovers from most errors. If not, the error is cleared by holding down the

Go

button.

LED Type of error

Error clearance by pressing the

Go

button.

Remedy

Toner low ---

The

Toner

LED will turn on for

2 seconds and off for 3 seconds. Replace the toner cartridge.

Toner life end

Cartridge position error

Drum near end

N/A

N/A

---

Replace the toner cartridge with a new one.

The drum unit ASSY is not installed correctly. Put the drum unit ASSY back in.

The drum unit is near the end of its life. We recommend that you get a new drum unit to replace the current one. The

Drum

LED will turn on for 2 seconds and off for 3 seconds.

No paper fed tray

Paper jam

Incorrect Paper size for Duplex

(HL5250DN/5270DN/

5280DW)

Duplex disabled

N/A

N/A

Yes

Yes

Put paper in the tray. Press the

Go

button.

Clear the paper jam. If the printer does not start printing, press the

Go

button.

Press the

Go

or

Job Cancel

.

Set the correct paper that you want to use, or load the same paper size paper that you selected in the current driver setting. The paper size you can use doe automatic duplex printing is A4, Letter or Legal.

Close the back cover of the printer and put the duplex tray back in.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

LED Type of error

Front cover is open

Fuser cover is open

Dust on drum

Too many trays

Buffer error

Memory full

Print overrun

Download full

Font full

Error clearance by pressing the

Go

button.

N/A

N/A

N/A

N/A

Yes

Yes

Yes

Yes

Yes

Remedy

Close the front cover of the printer.

Close the back cover of the printer.

The corona wire needs to be cleaned.

Clean the electrodes of the main body and drum unit.

(Refer to 6.4 “Location of

Ground Contacts” in this

Chapter.)

Maximum number of optional trays is two. Remove additional trays.

Check the cable connection between the PC and the printer.

The printer memory is full and the printer cannot print full pages of a document.

A print overrun occurred and the printer cannot print full pages of a document.

The download buffer or the printer is full. Add more memory to the printer.

The font memory area is full.

Delete fonts or add more memory to the printer.

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CHAPTER 4 TROUBLESHOOTING

2.1.2 Operator calls for HL-5270DN/5280DW

An “Operator call” which the printer indicates on the LCD display is user recoverable. Identify the error from the table below and take the corrective action described for each indication to correct it. The printer automatically recovers from most errors. If not, the error is cleared by holding down the

Go

button on the control panel.

The LCD names for the paper trays are as follows.

Upper paper tray: TRAY 1

• Multi-purpose tray: MP

Optional Lower tray: TRAY 2 or TRAY 3

Error message

Error message Remedy

BUFFER ERROR

Check the Interface settings.

CARTRIDGE ERROR

DIMM ERROR

DOWNLOAD FULL

The drum unit ASSY is not installed in properly. Take out the drum unit ASSY and put it back into the printer again.

Re-installed the DIMM correctly. Turn off the printer. Wait a few seconds, and then turn it on again. If this error message appears again, replace the DIMM with a new one.

Add more memory.

DUPLEX DISABLED

Close the back cover of the printer and put the duplex tray back in.

DUST ON DRUM

Open the front cover. Take out the drum unit and toner cartridge

ASSY. Gently slide the blue tab of the drum unit across several times.

Clean the electrodes of the main body and drum unit.

(Refer to 6.4 “Location of Ground Contacts” in this Chapter.)

Add more memory.

FONT FULL

FRONT COVER OPEN

Close the front cover of the printer.

Close the fuser cover located behind the back cover of the printer.

FUSER COVER OPEN

JAM XXX

MANUAL FEED

MEMORY FULL

Fig. 4-1

Carefully pull out the jammed paper from the area shown in the

“Paper jams and how to clear them” refer to

3.2 “Paper Jams” in this

Chapter.

Put the same size of paper in the MP tray as is shown on the LCD. If the printer is “paused”, press the

Go

button.

Add more memory.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

Error message

NO PAPER

Remedy

Put paper in the empty tray. If the error was not cleared when you put paper in the tray, match the size of paper that you selected in the application with the TRAY SIZE or set the TRAY SIZE to ANY using the control panel.

Put paper in the empty tray.

NO PAPER XXX

NO TRAY XXX

Put the paper tray in the printer.

PRINT OVERRUN

SIZE ERROR DX

SIZE MISMATCH

STORAGE FULL

TOO MANY TRAYS

Cut the resolution or add the optional memory. Set

Page Protection

to the correct size.

You can only use A4, Letter and Legal size for duplex printing.

Check the printer driver setting and put the correct sized paper in the paper tray or MP tray that is selected in the printer driver.

Put the same size paper in the paper tray or MP tray that is selected in the printer driver, and then press

Go

button, or set the size of paper you loaded in by using the control panel.

The RAMDISK size is set to 0 MB. Increase the RAMDISK size. Or there is no space to store jobs. Delete unnecessary macros or fonts.

Maximum number of optional trays is two. Remove additional trays.

Maintenance message

Maintenance message

DRUM NEAR END

Remedy

The drum unit is near the end of its life. Replace it with a new one.

TONER LOW

Buy a new toner cartridge and have it ready before you get a

TONER

LIFE END message.

Replace the toner cartridge with a new one.

TONER LIFE END

REPLACE PF KITMP

REPLACE PF KIT 1

Replace the paper feeding kit (separation pad ASSY MP, MP roller holder ASSY) for MP tray.

Replace the paper feeding kit. (Separation pad ASSY, roller holder

ASSY and separation pad spring)

REPLACE PF KIT 2

REPLACE KIT 3

REPLACE FUSER

Replace the fuser unit.

Replace the laser unit.

REPLACE LASER

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CHAPTER 4 TROUBLESHOOTING

2.2.1 Service calls for HL-5240/5250DN

If service calls occur, all four LEDs blink on and off to notice it. In this state execute the operation described on the top of Table 1 to notify a fault location from the specific combination of ON/OFF and status color of the LED.

Instruct the user to turn off the power switch, wait a few seconds and then turn it on again and try to print again. If the error is not cleared and the same service call appears, refer to 5.

“MALFUNCTIONS” to take the corrective action.

Error occurs.

Comfirm the LED indication.

Turn OFF/ON the power switch.

NO

Error occurs again.

YES

Refer to 5. "MALFUNCTION".

Temporary error.

Use the printer with out corrective action.

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<To show the service call type>

If

Go

and

Job Cancel

buttons are pressed together, the LEDs will be lighted up as shown in the table below to identify the error.

LED Type of service call LED Type of service call

Fuser unit failure

*1

Main PCB failure

Laser unit failure Main motor failure

High voltage error

DIMM error

*2

<Table 1>

*1: If this error occurs, turn off the printer power switch, wait a few seconds, and then turn it on again. Leave the printer for 10 minutes with the power on.

*2: If this error occurs, ensure that the DIMM is installed correctly.

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2.2.2 Service calls for HL-5270N/5280DW

When each of the following messages appears alternately on the LCD, a user unrecoverable error may have occurred.

Instruct the user to turn off the power switch, wait 5 seconds and then turn it on again. If the error is not cleared and the same service call appears, identify the error from the table on the next page and take the corrective action described for each indication to correct it.

ERROR ###

* * ### indicates the error codes.

Error occurs.

Confirm the LCD indication.

Turn OFF/ON the power switch.

Error occurs

again.

YES

NO

See section 5.

'MALFUNCTIONS'.

Temporary error.

Use the printer without corrective action.

Error message

(Print Settings)

Error descriptions Remedy

ERROR S01

FATAL ERROR EX Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

ERROR S02

ADRL ERROR EX

ERROR S03

ADRS ERROR EX

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

ERROR S04

ERROR S05

BUS ERROR EX

ERROR S06

ERROR S07

ERROR S08

ERROR S10

BUS ERROR EX

(INSTRUCT)

(DATA L/S)

SYSCALL EX

BREAKPOINT EX

RESERVED

INSTRUCT EX

ERROR S09

COPROCESSOR

UNUSAB EX

ARITHMETIC

OVERFLOW EX

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

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Error message

(Print Settings)

Error descriptions Remedy

ERROR S11

ERROR S12

SOFTWARE1

ERROR S13

INTERRUPT

SOFTWARE2

INTERRUPT

ERROR E49

FUSER UNIT

ERROR E50

ERROR E51

ERROR E52

ERROR E54

ERROR E55

ERROR H61

ERROR H63

DRAM ACCESS

ERROR H66

UNDEFINED

INTERRUPT

MALFUNCTION

FUSER UNIT

MALFUNCTION

LASER BEAM

DETECTION ERROR

SCANNER MOTOR

MALFUNCTION

MAIN MOTOR LOCK

ERROR

HIGH-VOLTAGE

POWER SUPPLY

MALFUNCTION

ROM CHECKSUM

ERROR

ERROR

NVRAM WRITE

ERROR

ERROR H67

NVRAM READ

ERROR

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If the same error occurs, replace the fuser unit. If still remains, replace the relay PCB R.

Turn off the printer. Wait a few seconds, then turn it on again. If the same error occurs, replace the fuser unit. If still remains, replace the relay PCB R.

Turn off the printer. Wait a few seconds, then turn it on again. If the same still occurs, replace the laser unit. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If the same still occurs, replace the laser unit. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If the same error occurs, replace the main motor. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If the same error occurs, replace the high-voltage power supply PCB ASSY. If still remains, replace the PS PCB unit.

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

ERROR H68

NVRAM BUS ERROR Turn off the printer. Wait a few seconds, then turn it on again. If still remains, replace the main PCB.

<Recovering from the service call>

Turn off the printer. Wait a few seconds, then turn it on again. For an unrecoverable error, however, the printer detects a service call again and indicates it.

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2.3 Error Message in the Status Monitor

The Status Monitor will report problems with the printer. Take the corrective actions listed in the following table for the error message that the Status Monitor reports.

The default setting for the Status Monitor is off. If you would like to turn the status monitor on, you can change the setting of the Status Monitor in the

Device Options

of the

Advanced

tab.

Error message

Toner Low

Toner Life End

Cartridge Error

Drum Near End

No Paper Fed Tray

No Paper Fed Manual

No Paper Multi

Purpose Tray

No Paper Tray 1/2/3

Jam MP Tray

Jam Tray 1/2/3

Jam Inside

Jam Rear

Jam Duplex

Incorrect Paper Size for DX

Remedy

Purchase a new toner cartridge and have it ready for when the

Toner Life End status is indicated.

Refer to

1.1 “Toner Cartridge” in Chapter 3.

• Take out the toner cartridge and put it back into the printer again.

• The drum is near the end of it's life. Purchase a new drum unit to replace the current one. Refer to

1.2 “Drum Unit” in Chapter 3.

• The paper tray may be out of paper or not properly installed. If it is empty, put a new stack of paper in the paper tray and then press the

Go

button.

If there is paper in the paper tray, make sure it is straight. If the paper is curled, straighten it before printing. Sometimes it is helpful to remove the paper, turn the stack over and put it back in the paper tray.

Reduce the amount of paper in the paper tray, and then try again.

Make sure you use paper that meets Brother’s recommended paper specifications. Refer to

3.6 “Paper” in Chapter 1.

Take out the jammed paper from the indicated area.

Refer to

3.2 “Paper Jams” in this Chapter.

Duplex Disabled

Front cover open

Fuser cover open

• Press the

Go

button or

Job Cancel

button. Set the correct paper that you want to use, or load the same size paper that you selected in the current driver setting. The paper size you can use for automatic duplex printing is A4, Letter or Legal.

Close the back cover of the printer and put the duplex tray back in.

Close the front cover of the printer.

Close the fuser cover located behind the back cover of the printer.

Fig. 4-2

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Error message

Dust On Drum

Print Overrun

Service Call Error

Remedy

Refer to 3.2 “Cleaning the Corona Wire” in Chapter 3.

• Press the

Go

button to print the data left in the printer. Cancel the print job if you want to delete the data remaining in the printer.

• If this does not clear the error, reduce the complexity of your document or reduce the print resolution.

Set page protection to

AUTO

by using the supplied Windows driver or Remote Printer Console program.

®

Change the following settings in the supplied Windows depending on your document:

® driver and try again. The best combination of these settings will vary

Graphics Mode

TrueType mode

• Use Printer TrueType

®

Fonts

• Check the LED indication or the LCD message to identify the error. Refer to

2.2 “Service Calls” in this Chapter.

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2.4 Error Message Printouts

The printer will report problems by printing an error message as defined in the following table.

Take the corrective actions for the error message.

Error message Remedy

MEMORY FULL

PRINT OVERRUN

RESOLUTION REDUCED TO

ENABLE PRINTING

(The printer has printed the

document at a reduced

resolution)

• Press the

Go

button to print the data left in the printer.

Cancel the print job if you want to delete the data remaining in the printer.

• Reduce the print resolution or reduce the complexity of your document.

Add more memory.

Press the

Go

button to print the data left in the printer.

Cancel the print job if you want to delete the data remaining in the printer.

If this does not clear the error, reduce the complexity of your document or reduce the print resolution.

Add more memory.

• Set page protection to

AUTO

by using the supplied

Windows

® driver or Remote Printer Console program.

• Change the following settings in the supplied Windows

® driver and try again. The best combination of these settings will vary depending on your document:

Graphics Mode

TrueType mode

Use Printer TrueType

®

Fonts

Reduce the complexity of your document before you print to prevent automatic reduction in the resolution.

* NOTE:

The communication parameter settings are printed on the Print Settings sheet. For details on

how to print the Print Settings page, refer to “Print Settings” in Chapter 7 .

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3. PAPER PROBLEMS

3.1 Paper Loading Problems

First, make sure that you are using paper that meets Brother recommended paper

specifications. Refer to 3.6 “Paper” in Chapter 1 .

Problem Remedy

The printer does not feed paper.

The printer does not feed paper from the MP tray.

The printer does not feed envelopes.

A paper jam has occurred.

When printing on normal paper, it creases.

When printing on Legal size paper or longer sized paper, the paper slides off the top output tray.

If there is paper in the paper tray, make sure it is straight.

If the paper is curled, straighten it before printing.

Sometimes it is helpful to remove the paper, turn the stack over and put it back in the paper tray.

Reduce the amount of paper in the paper tray, and then try again.

• Check that manual feed mode is not selected in the printer driver.

Fan the paper well and put it back in firmly.

Make sure that you have chosen the

MP Tray

in the

Paper Source pf the printer driver.

The printer can feed envelopes from the multi-purpose tray. Your application software must be set up correctly to print on the envelope size you are using. This is usually done in the page setup or document setup menu of your software. Please see your software application manual.

Clear the jammed paper. Refer to 3.2 “Paper Jams” in this Chapter.

Change the printer driver setting in

Media Type

to a thin setting.

Pull out and lift up the output tray support flap.

Fig. 4-3

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NOTE:

Refer to the Cautions described in the following pages.

3.2.1 Paper jams and how to clear them for HL-5240/5250DN

If a paper jam occurs, the printer will flash the

Paper

LED as shown below.

Fig. 4-4

Clear the jammed paper as follows.

If the jammed paper is removed completely by following the steps below, you can install the paper tray first, and then close the front cover. The printer will resume printing automatically.

If the printer does not start printing automatically, press the

Go

button. If the printer still does not start printing, please check that all the remaining jammed paper has been removed from the printer. Then try printing again.

NOTE:

Always remove all paper from the paper tray and straighten the stack when you add new paper. This helps to prevent multiple sheets of paper from feeding through the printer at one time and reduces paper jams.

(1) Press the cover release button and then open the front cover.

(2) Slowly take out the drum unit and toner cartridge ASSY. The jammed paper will be pulled out with them drum unit and toner cartridge ASSY.

(3) Pull the paper tray completely out of the printer.

(4) Close the front cover.

(5) Pull the jammed paper up and out of the printer.

(6) Open the front cover again.

(7) Open the back cover.

(8) Pull the tabs at the left and right hand sides toward you to open the fuser cover.

(9) Pull the jammed paper out of the fuser unit. If the jammed paper cannot be pulled out easily, push down the blue tab with one hand as you gently pull the paper out with the other.

(10) Close the back cover.

(11) Pull the duplex tray completely out of the printer.

(12) Pull the jammed paper out of the printer or the duplex tray. Put the duplex tray back in the printer.

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(13) Push down the blue lock lever and take the toner cartridge out of the drum unit. Clear the jammed paper if there is any inside the drum unit.

(14) Put the toner cartridge back into the drum unit until you hear it lock into place. If you put the cartridge in properly, the blue lock lever will lift automatically.

(15) Pull the drum unit and toner cartridge ASSY back in the printer.

(16) Put the paper tray firmly back in the printer.

(17) Close the front cover.

(18) Make sure that the

Paper

LED is now off and the printer is ready.

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3.2.2 Paper jams and how to clear them for HL-5270DN/5280DW

If paper jams inside the printer, the printer will stop. One of the following LCD messages will appear to tell you where to find the jammed paper.

5

6

1

7

2

3

4

Fig. 4-5

4.

5.

6.

7.

1.

2.

3.

JAM MP TRAY

JAM TRAY1

JAM TRAY2

JAM TRAY3

JAM INSIDE

JAM REAR

JAM DUPLEX

: Paper jam in the MP tray.

: Paper jam in the upper paper tray (TRAY 1).

: Paper jam in the lower tray (TRAY 2).

: Paper jam in the lower tray (TRAY 3).

: Paper jam inside the printer.

: Paper jam where the paper comes out of the printer.

: Paper jam in the duplex tray.

Check where the jam is and clear the jammed paper as follows.

If the error message still appears on the LCD after you remove the jammed paper, there may be more paper jammed somewhere else. Check the printer thoroughly.

After you have removed all the jammed paper, open the front cover and then close it again to start printing.

NOTE:

Always remove all paper from the paper tray and straighten the stack when you add new paper. This helps prevent multiple sheets of paper from feeding through the printer at one time and prevents paper jams.

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1. JAM MP TRAY (Paper jam in the MP tray)

JAM MP TRAY

If a paper jam occurs inside the MP tray, follow these steps:

(1) Press the cover release button and then open the front cover.

(2) Take out the drum unit and toner cartridge ASSY.

(3) Remove the paper from the MP tray.

(4) Fan the paper stack, then put it back in the MP tray.

Fig. 4-6

(5) When loading paper in the MP tray, make sure that it touches the back of the tray and stays under the maximum paper height guides on both sides of the tray.

(6) Open the front cover and close it, or press

Go

button to start printing.

2. JAM TRAY 1 / TRAY 2 / TRAY 3 (Paper jam inside the paper tray)

NOTE:

The LCD names for the paper trays are as follows.

Upper paper tray: TRAY1

Optional Lower tray: TRAY2 or TRAY3

JAM TRAY1

JAM TRAY2

JAM TRAY3

If a paper jam occurs inside the paper tray, follow these steps:

(1) Pull the paper tray completely out of the printer.

Fig. 4-7

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(2) Use both hands to slowly pull out the jammed paper.

Fig. 4-8

(3) Put paper below the maximum paper mark ( ). While pressing the blue paper-guide release lever, slide the paper guides to fit the paper size. Make sure that the guides are firmly in the slots.

(4) Put the paper tray firmly back in the printer.

(5) Open the front cover and close it to resume printing.

!

CAUTION:

DO NOT take out the upper paper tray while paper is feeding from a lower paper tray because this may cause a paper jam.

3. JAM INSIDE (Paper jam inside the printer)

JAM INSIDE

HOT SURFACE:

After you have just used the printer, some internal parts of the printer will be extremely hot.

When you open the front cover or back cover of the printer, DO NOT touch the shaded parts shown in the illustrations.

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If a paper jam occurs inside the MP tray, follow these steps:

(1) Press the front cover release button and then open the front cover.

Fig. 4-9

(2) Slowly take out the drum unit and toner cartridge ASSY. The jammed paper will be pulled out with the drum unit and toner cartridge ASSY.

Fig. 4-10

!

CAUTION:

* After you have removed the jammed paper, print a few test pages. This is to make sure that the printed pages have no toner stains on them before you restart the print job.

* Remove the jammed paper carefully so you do not spread toner.

* Take care not to stain your hands and clothes with toner. Wash toner stains at once with cold water.

* We recommend that you put the drum unit and toner cartridge ASSY on a piece of disposable paper or cloth in case you accidentally spill the toner.

* To prevent damage to the printer caused by static electricity, DO NOT touch the electrodes shown in the illustration.

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(3) Push down the blue lock lever and take the toner cartridge out of the drum unit. Clear the jammed paper if there is any inside the drum unit.

Fig. 4-11

!

CAUTION:

* Handle the toner cartridge carefully. If toner scatters on your hands or clothes, wipe or wash it off with cold water at once.

* To avoid print quality problems, DO NOT touch the shaded parts shown in the illustrations.

(4) Put the toner cartridge back into the drum unit until you hear it lock into place. If you put the cartridge in properly, the blue lock lever will lift automatically.

(5) Close the front cover.

Fig. 4-12

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4. JAM REAR (Paper jam behind the back cover)

JAM REAR

HOT SURFACE:

After you have just used the printer, some internal parts of the printer will be extremely hot.

When you open the front cover or back cover of the printer, DO NOT touch the shaded parts shown in the illustrations.

If a paper jam occurs behind the face-up output tray, follow these steps:

(1) Press the cover release button and then open the front cover.

Fig. 4-13

(2) Slowly take out the drum unit and toner cartridge ASSY. The jammed paper will be pulled out with the drum unit and toner cartridge ASSY.

Fig. 4-14

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!

CAUTION:

* We recommend that you put the drum unit and toner cartridge ASSY on a piece of disposable paper or cloth in case you accidentally spill or scatter toner.

* To prevent damage to the printer from static electricity, DO NOT touch the electrodes shown in the illustration.

(3) Open the back cover.

Fig. 4-15

(4) Pull the tabs at the left and right hand sides toward you to open the fuser cover (1).

1

Fig. 4-16

(5) Using both hands, gently pull the jammed paper out of the fuser unit.

HOT SURFACE:

After you have just used the printer, some internal parts of the printer will be extremely hot.

Wait for the printer to cool down before you touch the internal parts of the printer.

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(6) Close the back cover.

(7) Put the drum unit and toner cartridge ASSY back in the printer (press firmly).

(8) Close the front cover.

5. JAM DUPLEX (Paper jam in the duplex tray)

JAM DUPLEX

If a paper jam occurs inside the duplex tray, follow these steps:

(1) Pull the duplex tray completely out of the printer.

Fig. 4-17

(2) Pull the jammed paper out of the printer or the duplex tray.

Fig. 4-18

(3) Put the duplex tray back in the printer.

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3.2.3 Causes & countermeasures

The causes for paper jam problems vary depending on the location of the paper jam. When a paper jam occurs inside the printer, you have to find the location of the paper jam first, remove the jammed paper and then take the appropriate countermeasure referring to the table below;

Problem Type of Jam Cause Remedy

Jam when the printer is turned on.

Paper stuck The regist front sensor or paper eject sensor is turned on.

Paper stopped in the middle of feeding.

Bottom of paper stopped around the transfer roller.

Top of paper stopped between the paper feed roller and the pick-up roller.

Top of paper stopped at 60mm from the contact point of the heat roller and pressure roller.

Jam after paper is ejected.

Jam caused by paper length detected as longer than 410mm (16 in).

Jam caused by paper length detected as shorter than 80mm.

Jam caused by a paper feed delay.

Jam caused by the paper not being sensed when ejected from the paper eject sensor.

Jam caused by the paper not being sensed when ejected from the paper eject sensor.

The regist front sensor is not returning properly and is not turning off.

The regist front sensor was turned off early.

Malfunction of actuator or hardware noise.

Paper was not fed in at the proper timing due to paper dust or wear of the rubber pick-up roller.

The paper eject sensor is not working properly and has not turned off. (single printing)

The paper eject sensor or front registration sensor is not working properly and has not turned off. (continuous printing)

Remove the paper inside the printer. If there is no paper, check the suspect sensors refer to

“Factory Inspection

Mode” in Chapter 7.

Check front registration sensor motion refer to

“Factory Inspection

Mode” in Chapter 7.

Check the front registration sensor

refer to “Factory

Inspection Mode” in

Chapter 7.

Remove the paper dust attached to the pick-up roller. If the rubber is worn out, replace it with a new one.

Check sensor motion

refer to “Factory

Inspection Mode” in

Chapter 7.

Check sensor motion

refer to “Factory

Inspection Mode” in

Chapter 7.

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3.3 Paper Feeding Problems

Even if the paper is printed and ejected without any problems such as paper jams, paper feeding problems below may appear.

Users can clear these problems by following the ‘User Check’ items for each problem. Even if the same problem occurs again, follow the procedures in the table below.

(1) Double feeding

User Check

Check the paper used meets the recommended paper specifications.

(Refer to 3.6 “Paper” in

Chapter 1.

)

Possible cause Step Check Result Remedy

Yes Replace the separation pad. Separation pad 1 Is the surface of the separation pad worn out?

(2) Wrinkles or creases

User Check

(1) Check that paper is loaded into the paper tray correctly.

(2) Check the paper used meets the recommended paper specifications. (Refer to 3.6 “Paper” in

Chapter 1 .)

(3) Try printing using the straight-through output path.

(4) Turn over the stack of paper in the tray or try rotating the paper 180° in the tray.

(5) For the envelope, check the setting of the nip action in the fuser unit.

Possible cause Step

Paper 1

Check

Is the problem solved if new paper is used?

2 Is the entrance guide dirty?

Result

Yes

Remedy

Instruct the user how to store paper so that it does not absorb moisture.

Yes Clean the entrance guide. Fuser unit entrance guide

Fuser unit 3 Is the pressure roller dirty? Yes Clean the pressure roller.

No Replace the fuser unit.

(3) Page skew

User Check

(1) Check that the paper or other media is loaded into the paper tray correctly and that the paper guides are not too tight or too loose against the paper stack.

(2) If using the manual feed slot, check how to load paper into the manual feed slot correctly.

(3) The paper tray may be too full. Load paper below mark in depth.

(4) Check the paper used meets the recommended paper specifications. (Refer to 3.6 “Paper” in

Chapter 1.

)

(5) Check that the levers on the left and right hand sides for the nip action in the fuser unit are nipped equally.

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(4) Curl or Wave

User Check

(1) Check the paper used meets the recommended paper specifications. Both high temperature and humidity will cause paper to curl.

(2) If the printer is used infrequently, the paper may have sat for too long in the paper tray. Turn over the stack of paper in the paper tray. Also, try rotating the paper 180° in the paper tray.

(3) Check that the paper used meets the Media Type setting in the driver.

NOTE:

For no paper supplied as the cause of a malfunction, refer to 5. “MALFUNCTIONS” in this

Chapter .

(5) Prints only single side of the paper when duplex-printing

User Check

Check the size of the paper used meets the recommended paper specifications (A4 or Letter, Legal).

(6) Paper pickup

Possible cause Step Check Result Remedy

1 Is the harness of the pickup solenoid disconnected?

Yes Reconnect the harness.

Disconnection of the pickup solenoid harness

Pickup solenoid harness failure

Pressure plate gear damage

Clutch gear damage

2 Does the harness of the pickup solenoid work correctly?

3 Is the pressure plate gear damaged?

4 Is the clutch gear damaged?

No Replace the pickup solenoid.

Yes Replace the pressure plate gear.

Yes Replace the gear unit.

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4. SOFTWARE SETTING PROBLEMS

The printer may not print the data correctly if there are incorrect software settings.

(1) “There was an error writing to LPT1: (or BRUSB) for the printer” error message appears.

User Check

(1) Check that the printer cable is not damaged or broken. Check also that the cable is connected to the correct interface connectors of both the printer and PC.

(2) Check that the correct printer is selected if you have an interface switching device.

(3) Check that the appropriate printer driver is selected as ‘Set as Default’. Check also that the correct print port is set for the selected printer driver.

(4) Check that the printer is not connected to the same port which is also connected to a mass storage device or scanner. Remove all other devices and connect the port to the printer only.

Turn off the printer status monitor in the device options tab in the printer driver.

(5) If the print port is set as an ECP port, change it to a normal port.

(6) Try printing the test page refer to

‘Test Sample Page’ in Chapter 7.

(7) Try resetting the factory settings.

Possible cause Step

Failure inside the printer

1

Check

Is it possible to print the test

page with the method of ‘Test

Sample Page’ in Chapter 7.?

Main PCB failure

2 Is it possible to print with another PC and printer cable?

Result

No

No

Remedy

Identify the error type, then refer to the specified section of this chapter.

Replace the main PCB.

Yes This problem may appear under the specified system environment. Check the environment which the user used.

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(2) Although the USB driver is installed, it is unable to find the BRUSB: port. (Windows98/Me only)

User Check

(1) Re-install the USB driver by following the steps below; i) Turn the printer off. ii) Double-click the file “Deins USB.exe” in the USB directory of the CD-ROM. iii) Re-boot the PC. iv) Turn the printer on. v) “Add New Hardware Wizard” is launched again, follow the instructions in the Wizard to re-install the driver.

(2) Try to connect the printer directly to the computer if it is connected through a USB hub.

Possible cause Step

Computer

Operating

System

Computer settings

1 Windows 95 or Windows

NT4.0?

2

Check

Does ‘Universal Serial Bus

Controllers’ appear in the

Device Manager tab of ‘System

Properties’ in Control Panel?

Result

Yes

No

Remedy

The operating system does not support USB.

This problem can be caused by your computer settings.

See the computer manual.

USB cable/ printer damage

3 Does “Add New Hardware

Wizard” appear on the screen or Does test print complete?

No The USB cable is damaged.

Replace the cable. If the same problem appears, the printer will be damaged.

(3) The print speed slows down under BR-Script 3

User Check

Add optional memory.

(4) Unable to print EPS data under BR-Script 3.

User Check

Follow the steps below;

(1) In the printer folder, choose the printer you use.

(2) Press the button on the Post Script

®

tab.

(3) Choose in data format.

!

CAUTION:

Not following the instructions for using the printer may cause you to be responsible for all repairs.

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(5) This printer does not appear in Chooser (Mac OS

10.2) or Printer Setup Utility (Mac OS

®

9.1 to 9.2), Print center (Mac OS

®

X 10.3 or greater).

®

X

User Check

(1) Check the printer is turned on.

(2) Check USB cable is connected correctly.

(3) Check the printer driver is installed correctly.

Possible cause

Printer connection

Step Check

1 Select ‘Apple System Profiler’ in Apple Menu. Are the following items indicated in the

USB box of the Device and

Volumes tab?

Product ID: 002A (HL-5240),

002B (HL-5250DN), 002C

(HL-5270DN), 002D (HL-

5280DW)

Vender: Brother International

Corporation (or 0x4f9)

Driver installation

2 Are there the following files in the Extensions Folder of

System Folder?

<For System 9.1 – 9.2>

BR_PrintMoniter (laser)

Brother Laser

Result Remedy

No Check the printer is turned on and the USB cable is connected correctly.

Check that the USB cable used is the shielded twisted pair type and 5 m or less.

Try to connect the printer and

PC with the USB cable directly.

No Try to re-install the printer driver.

Yes Turn off the printer and PC power switch, and check all connections between them.

Then, turn them on again.

(6) Unable to print from the application when using Macintosh with USB

User Check

Make sure that the supplied Macintosh selected with Chooser (Mac OS

Setup Utility (Mac OS

®

®

®

printer driver is installed in the Hard Disk and that it is

9.1 to 9.2), Print Center (Mac OS

X 10.3 or greater).

®

X 10.2.4 or greater) or Print

(7) Unable to print from the application software under DOS.

User Check

(1) Make sure that the DOS application interface settings match those of your printer. For example, if you are using a parallel printer cable, you would set your DOS application printer port to LPT1.

(2) Check if the printer has any printer alarms.

(3) Make sure that you have chosen the proper printer in your application.

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CHAPTER 4 TROUBLESHOOTING

5. MALFUNCTIONS

When taking countermeasures for malfunctions as described in this section, check connectors for contact failure before measuring the voltage at the specified connector pins.

(1) No AC power supplied

Possible cause Step Check Result Remedy

Supply voltage 1 Is the correct voltage present at the outlet?

Power plug

Fuse (F1, F2)

2 Is the power cord securely plugged into the outlet?

3 Is the fuse blown?

No

No

Inform the user that the correct voltage is not supplied at the outlet.

Plug the power cord securely into the outlet.

Yes If the fuse blows again immediately after replacing the low-voltage power supply

PCB, check that there is not a short circuit somewhere in the

AC power supply line.

Yes Replace the AC power cord. Wiring 4 Unplug the power supply plug.

Is there a broken wire between the AC input connector of the low-voltage power supply and the power plug?

(2) No DC power supplied

Possible cause Step Check

AC power supply

1 Is AC power supplied between connectors CN1-L and CN1-N when the power plug is plugged into the outlet?

Result

No

Remedy

Follow the same check procedure of (1) “No AC power supplied”.

Wiring, DC load

Low-voltage power supply

PCB

2 Turn on the power switch.

Measure the voltages between the terminals. Do the measured voltage satisfy the prescribed valued in the table below?

3 Refer to the chart *1 below.

Yes Turn off the power switch, reconnect the connector and turn the power switch on again. If the protector circuit is activated, check the connector, the wiring from the connector, and the DC load.

No Replace the low-voltage power supply PCB.

*1

PCB +lead pin

Main CN8-4

CN8-5

CN8-6

CN8-7

- lead pin

CN8-2, CN8-3

CN8-2, CN8-3

CN8-8

CN8-8

Voltage

Approx. 24V

Approx. 24V

Approx. 6.5V to 13V

Approx. 3.3V

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WARNING

If you analyze malfunctions with the power plug inserted into the power outlet, special caution should be exercised even if the power switch is OFF because it is a single pole switch.

(3) Main motor failure

Possible cause Step Check Result Remedy

No Reconnect the connector. Failure of connector

Main motor

1 Is the connection of connector

CN4 on the main PCB correct?

2 Is the problem solved by replacing the main motor?

Yes Replace the main motor.

Main PCB 3 Is the problem solved by replacing the main PCB?

(4) No paper supplied

Possible cause Step Check

Separation pad / pickup roller failure

1 Is the surface of the separation pad or the pickup roller dirty or worn out?

Failure of connector

Yes Replace the main PCB.

Result Remedy

Yes 1) Clean the surface of the separation pad or pickup roller.

2) Replace the separation pad or pickup roller.

No Reconnect the connector.

HVPS circuit

Paper pickup clutch solenoid

Main PCB

2 Is the contact of the solenoid connector on the relay front

PCB good?

3 Set paper in the manual feed slot and make a test print by pressing the

Go

button.

Does the voltage between pins

1(SOLENOID) and 2 (24V) of the CN1 TRAY1, CN3 MP connector on the relay front

PCB change from approx. 24V

DC to 0V within the specified time?

4 Is the problem solved by replacing the main PCB?

Yes Replace the relay front PCB.

No Replace the paper pickup clutch solenoid.

Yes Replace the main PCB.

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CHAPTER 4 TROUBLESHOOTING

(5) Insufficient output from high-voltage power supply unit

Possible cause Step

High-voltage contact

Check

1 Do any of the terminals on the high-voltage contacts have dirt or contact burns?

Result Remedy

Yes Clean the terminals.

High-voltage power supply

PCB

2 Check the connections of the connector between the highvoltage power supply and the main PCB are secured correctly?

Yes Replace the high-voltage power supply PCB.

No Reconnect the connector between the high-voltage power supply and the main

PCB.

(6) Fixing heater temperature failure

Possible cause Step Check

Poor thermistor harness contact

1 Is the contact of connector

CN1 and CN2 on the relay rear

PCB good?

Result

No

Remedy

Reconnect the connector.

No Reconnect the connector.

Blown thermostat

2 Is the contact of connector

CN3 on the main PCB good?

3 Remove the fuser unit and measure the resistance of the thermostat. Is it open circuit?

Halogen heater lamp failure

(7) Laser Unit failure

Possible cause Step

4 Remove the fuser unit and measure the resistance of the halogen heater lamp. Is it open circuit?

Check

Harness connection failure (1)

1 Is connector CN18 on the main

PCB secured correctly?

Harness connection failure (2)

2 Is the connection of the scanner motor connector

CN10 on the main PCB secure?

Yes Replace the fuser unit.

Yes Replace the fuser unit.

Result Remedy

No Reconnect the connector securely.

Yes Replace the laser unit.

No Reconnect the connector securely.

Yes Replace the laser unit.

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(8) Fuser unit failure

Possible cause Step

Poor thermistor harness contact

Check

1 Is the contact of connector

CN1 and CN2 on the relay rear

PCB good?

2 Is the contact of connector

CN3 on the main PCB good?

3 Is the thermistor installed properly?

Thermistor assembling failure

Halogen heater lamp failure

Heater harness connection failure

4 Remove the fuser unit and measure the resistance of the halogen heater lamp. Is it open circuit?

5 Is the heater harness connector connected to the low-voltage power supply PCB and fuser unit secure?

Result Remedy

No Reconnect the connector.

No Reconnect the connector.

Yes Replace the fuser unit.

No Reinstall the thermistor properly.

Yes Replace the fuser unit.

No Reconnect the connectors securely.

NOTE:

This problem will be cleared if leaving the printer power ON for ten minutes.

If the heater is cooled down sufficiently, this problem may be cleared by following steps; 1)

Check that the front cover is open. 2) Turn on the printer power switch while pressing the

Go button. Be warned, however, that this operation will melt the fuser unit if the

heater is hot.

(9) Main PCB failure

Possible cause Step Check Result Remedy

Main PCB No Replace the main PCB.

Software bug

1 Is it possible to print the test

page with the method of ‘Test

Sample Page’ in Chapter 7 ?

2 Does this problem appear when printing specific data or printing under a specific environment?

Yes Inform the Brother office of the used specific data, printer condition and system environment.

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CHAPTER 4 TROUBLESHOOTING

(10) Pickup function of paper tray does not work

Possible cause Step

Link lever does not move smoothly.

Check

1 Does the link lever work?

Isn't the link lever bent?

Pickup roller holder ASSY does not move smoothly.

Main motor failure

2 Does the pickup roller holder

ASSY move up and down?

3 Does the main motor work?

Pressure plate drive cam failure

4 Does the pressure plate drive cam rotate?

(11) The new toner is not sensed

Possible cause Step Check

1 The toner cartridge is not inserted completely.

The toner cartridge is not set to the main body correctly.

New toner detection switch failure

Main PCB failure

2 Isn't the toner sensed even if the switch is held?

3 Is the problem solved by replacing the main PCB?

(12) Maximum speed is slow

Possible cause Step

Two or more sheets of the paper in the tray are pulled to feed.

Check

1 Does paper double feeding occur?

Foreign body attached to the tail edge actuator

Tail edge actuator failure

2 Is a foreign body caught on the tail edge actuator?

3 Is the tail edge actuator deformed?

Tail edge sensor malfunction

4 Is the tail edge sensor turned

ON?

Result Remedy

Yes Remove the cause of nonsmooth operation of the link lever.

Replace the link lever.

No Replace the pickup roller holder ASSY.

No

No Replace the main frame L

ASSY.

Result Remedy

Yes Reset the cartridge.

Yes Replace the switch.

No

Replace the main motor.

Replace the main PCB.

Result Remedy

Yes Replace the separation pad.

Yes Remove a foreign body.

Yes Replace the tail edge actuator.

Yes Replace the tail edge sensor.

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(13) LED failure

Possible cause Step

Three LEDs light up after turning the power ON.

Check

A1 Is the printer in the service mode?

Result Remedy

Yes

Check that the

Go

button has been pressed or not.

Panel PCB failure

A2 Does any LED light up when pressing the

Go

button?

No

Replace the panel PCB.

Disconnection of the panel PCB harness

Regist front sensor failure

Regist rear sensor failure

Paper eject sensor failure

Front cover failure

New toner detection switch failure

Process unit terminal failure

Laser unit failure

B1 Is the harness connected securely?

B2 Does the regist front sensor work correctly?

B3 Does the regist rear sensor work correctly?

B4 Does the paper eject sensor work correctly?

1 Is the cover opened by vibration during idling?

2 Does the new toner detection switch work correctly?

3 Are the terminals of the process unit dirty?

4 Does the laser unit work correctly?

No

No

No

No

Reconnect the harness securely.

Replace the regist front sensor.

Replace the regist rear sensor.

Main cover switch malfunction

B5 Is the main cover switch closed securely?

Yes Check the switch.

(14) Service error indication when turning the power ON

Possible cause Step Check Result Remedy

Disconnection of the main motor harness

1 Is the harness of the main motor connected?

No

Reconnect the harness securely.

Disconnection of the scanner motor harness

2 Is the harness of the scanner motor connected?

No

Reconnect the harness securely.

No

Replace the fuser unit. Fuser unit failure 3 Does the printer resume after opening the cover, turning the power ON and leaving the printer for ten minutes?

(15) The printer stops while idling

Possible cause Step Check Result Remedy

Yes Replace the front cover.

No

Yes Clean the terminals.

No

Replace the paper eject sensor.

Replace the new toner detection switch.

Replace the laser unit.

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CHAPTER 4 TROUBLESHOOTING

6. IMAGE DEFECTS

6.1 Image Defect Examples

I-1 Light

I-3 Completely blank

I-4 All black

I-5 Dirt on back of paper

I-6 Black vertical

streaks

I-10 White horizontal streaks

I-6 Black vertical streaks

I-11 Faulty registration

I-7 Black horizontal stripes

I-12 Poor fixing

I-8 Black vertical streaks

I-13 Image distortion

I-9 White vertical streaks

print o print o print o print o print o print o print o print o print o print o print o print o print o

Print out test

Print out test

Print out test

Print out test

Print out test

Print out test

Print out test

Print out test

Print out test

Print out test

Print out test

Print out test

Print out test print o out test print o print o out test out test print o out test print o print o out test out test print o out test print o print o out test out test print o out test print o print o out test out test print o out test test Print test Print test Print test Print test Print test Print test Print test Print test Print test Print test Print test Print test Print print out print out print out print out print out print out print out print out print out print out print out print out print out out test out test out test test print out test test print test print test print out test out test test print test print out test test print out test out test test print test print out test test print out test out test test print test print out test test print

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out

Print out

Print out

Print out

Print out

Print out

Print out

Print out

Print out

Print out

Print out

Print out

Print out

I-14 Faint print

Print out test print out test

Print out test print out test

Print out test print out test

Print out test print out test

Print out test print out test

Print out test print out test

Print out test print out test

Print out test print out test

Print out test print out test

Print out test print out test

Print out test print out test

Print out test print out test

Print out test print out test print o print o print o print o print o print o print o print o print o print o print o print o print o print o print o print o print o print o print o print o print o print o print o print o print o print o

I-15 White spots

I-16 Black spots

I-17 Black band

I-18 Gray background

I-19 Hollow print

I-20 Downward fogging of solid black

I-21 Horizontal lines

I-22 Light rain

I-23 Ghost

I-24 Toner specks

Fig. 4-19

6.2 Diameter of Rollers

The diameter of each roller and the pitch which appears in the image are listed below.

No. Parts Name Diameter (The pitch which appears in the image)

Ø

14.0 mm (44.0 mm)

Ø

15.2 mm (48.2 mm)

Ø

30.0 mm (94.2 mm)

Ø

25.0 mm (78.5 mm)

Ø

25.0 mm (78.5 mm)

Ø

20.0 mm (42.5 mm)

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6.3 Troubleshooting Image Defect

Several types of the image defects can be cleared by end users. For those defects, instruct the user to check the ‘User Check’ items described in each table. Even if the same image defect appears, the following procedures should be followed in the event of specific image defects.

See also 6.4 “Location of Ground Contacts” in this Chapter for information about the location of

the grounding contacts.

!

CAUTION:

guaranteed.

When using the printer for a special job, such as printing of name cards, print quality cannot be

(I-1) Light

User Check

(1) Check the printer’s environment. Conditions such as humidity, high temperatures, etc. may cause this situation to occur.

(2) If the whole page is light, toner save mode may be on. Disable toner save mode within Printer Properties tab of the driver.

(3) Try installing a new toner cartridge or drum unit.

Possible cause Step Check Result Remedy

Ground contacts

Toner sensor failure

(printer side)

Toner sensor failure

(toner cartridge side)

Drum connection failure

HVPS / Main

PCB failure

1 Can printing be started with the drum unit and toner cartridge removed?

2 Is the problem solved when 4 or 5 pages are printed after the toner cartridge is replaced with a full one?

3 Are all the contacts between the drum unit and printer body connected correctly?

Yes Check if the toner sensor is dirty and check the toner sensor connection.

Yes The wiper of the toner cartridge is defective.

Replace the toner cartridge. contact electrodes both on the drum unit and in the printer body.

Yes Replace the HVPS or the main PCB.

(1), (4),

(5), (6)

Dirt on the scanner window

Laser unit failure

4 Is the harness connection between the HVPS and the main PCB correct?

5 Is there any dirt on the scanner window?

6 Is the problem solved after replacing the laser unit?

Yes Wipe it off with a soft clean paper.

Yes Replace the laser unit.

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CHAPTER 4 TROUBLESHOOTING

(I-2) Dark

Possible cause Step

Corona failure

(contact failure)

Drum unit failure

Toner cartridge failure

Check

1 Are the charge electrodes between the printer body and the drum unit dirty?

2 Is the problem solved after replacing the drum unit?

3 Is the problem solved after replacing the toner cartridge?

High-voltage power supply

PCB failure

Main PCB failure

User Check

(1) Check the paper used meets the recommended paper specifications.

(2) Check the printer’s environment. High temperature and high humidity conditions can increase the amount of background shading.

(3) Clean the corona wire with the wire cleaner.

(4) Try installing a new toner cartridge or drum unit.

4 Is the connections of the connector between the highvoltage power supply PCB and the main PCB secured correctly?

5 Are there any disconnected connectors?

Result Remedy

Yes Clean both electrodes.

Yes Replace the drum unit with a new one.

Yes Replace the toner cartridge with a new one.

Yes Replace the highvoltage power supply

PCB.

No Replace the main

PCB.

Ground contacts

(3)

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(I-3) Completely blank

Possible cause Step

Developing bias contact failure

Drum unit

Check

1 Are the developing bias contacts between the printer body and drum unit dirty?

2 Are the drum shaft and drum electrode of the printer body connected correctly?

Drum unit failure

Toner cartridge failure

Scanner harness connection failure

Main PCB failure

Laser unit failure

Result Remedy

Yes Clean the electrodes at both sides.

3

4

Is the problem solved after replacing the drum unit?

Is the problem solved after replacing the toner cartridge?

Yes Clean the shaft and the electrode.

No Check the connection between the shaft and the electrode.

Yes Replace the drum unit.

Yes Replace the toner cartridge with a new one. the connector correctly.

5 Is the scanner harness connected securely?

(Check if there is any play in the connection.)

6 Are printing signals being input to the laser unit?

Is the problem solved after replacing the main PCB?

7 Is the scanner interlock lever damaged?

Is the scanner mirror broken or loose?

Yes Replace the main

PCB.

Yes Replace the laser unit.

No Replace the highvoltage power supply

PCB.

Ground contacts

(4)

(1)

(1)

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CHAPTER 4 TROUBLESHOOTING

(I-4) All black

Harness connection

User Check

(1) Clean the corona wire of the drum unit.

(2) The drum unit may be damaged. Install a new drum unit.

Possible cause Step

Corona failure

Check

1 Is the corona wire dirty?

2 Is the corona wire broken?

3 Are the charge electrodes between the printer body and the drum unit dirty?

4 Is the laser unit connected to the main PCB correctly?

Result Remedy

Yes Clean the corona wire with the wire cleaner.

Yes Replace the drum unit.

Yes Clean both electrodes.

Ground contacts

(2)

(3)

High-voltage power supply

PCB failure

Main PCB failure

Laser unit failure

5 Is the problem solved after replacing the high-voltage power supply PCB?

6 Is the problem solved after replacing the main PCB?

7 Is the problem solved after replacing the laser unit?

No Connect the harness between the laser unit and the main PCB correctly.

Yes Replace the highvoltage power supply

PCB.

Yes Replace the main

PCB.

Yes Replace the laser unit.

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(I-5) Dirt on the back of paper

Possible cause Step

Fuser unit dirty

Dirt in the drum unit

1

Check

Is the pressure roller dirty?

Is any other area in the printer dirty?

2 Is the transfer roller dirty?

Is the problem solved after replacing the drum unit?

Result

Yes

Yes

Clean the pressure roller referring to the following procedure.

Replace the drum unit

No Replace the high-voltage power supply PCB.

Remedy

NOTE:

This problem may disappear after printing approximately 10 pages of completely blank sheets.

How to clean the pressure roller

Clean the pressure roller as follows;

(HL-5240/5250DN)

(1) Set five or more sheets of paper in the paper tray.

(2) Open the front cover, and turn on the power switch while holding down the

Go

button.

(3) All LEDs light up, and keep the

Go

button pressed down until the

Status

LED goes off.

Then, release the

Go

button and make sure that all LEDs are off. the button once and make sure that

Toner

,

Drum

and

Paper

LEDs light up. the button twice and wait for two seconds. Then, the printer starts printing the grid pattern continuously.

(6) Close the front cover, and print approximately five pages. the button after printing.

(HL-5270DN/5280DW)

(1) Set five or more sheets of paper in the paper tray.

(2) Open the front cover, and turn on the power switch while holding down the

Go

button.

(3) “USERS MODE” message appears on the LCD panel. the button and make sure that all LEDs are off. the button once and make sure that “USERS MODE” message appears on the

LCD panel with the orange backlight. the button twice and wait for two seconds. Then, the printer starts printing the grid pattern continuously.

(7) Close the front cover, and print approximately five pages. the button after printing.

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CHAPTER 4 TROUBLESHOOTING

(I-6) Black and blurred vertical streaks

User Check

(1) Clean the corona wire in the drum unit.

(2) Check that the wire cleaner is at the home position.

(3) Check that the toner cartridge is not empty.

(4) The drum unit may be damaged. Install a new drum unit.

(5) The toner cartridge may be damaged. Install a new toner cartridge.

Possible cause Step Check Result Remedy

Corona failure

Corona failure

Dirt in the paper feed system

Scratch on the drum

Cleaning failure

1 Is the corona wire dirty?

2 Is the vertical block streak about 10mm wide?

(Check if the wire cleaner is at its home position.)

3 Is the paper tray or feed system on the drum unit dirty with toner?

4 Is the surface of the drum scratched?

5 Is the surface of the drum dirty with toner in streaks?

Yes Clean the corona wire with the wire cleaner.

Yes

Yes

Yes

Yes

Return the wire cleaner to its home position.

Clean the toner off.

Replace the drum unit.

Replace the drum unit.

Scratch on the heat roller

6 Is the surface of the heat roller scratched?

Yes Replace the fuser unit.

NOTE:

If you print the same pattern (especially vertical streaks) continuously, electrostatic charge performance of the drum will decrease temporarily and black vertical streaks may appear on the paper.

This problem may occur with noise due to the corona wire being dirty. In that case, clean the corona wire with the wire cleaner.

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(I-7) Black and blurred horizontal stripes

User Check

(1) The drum unit may be damaged. Install a new drum unit.

(2) Check the paper used meets the recommended paper specifications.

(3) Clean inside of the printer and the corona wire in the drum unit.

Possible cause Step Check Result Remedy

Scratch on the drum

Toner stuck on the developer roller

1 Are the horizontal stripes at

74mm (exposure drum) intervals?

2 Are the horizontal stripes at

62.8mm (developer roller) intervals?

Yes The exposure drum was scratched.

Replace the drum unit.

Yes After printing several pages, the problem will disappear.

If not, replace the toner cartridge.

Yes Replace the fuser unit.

Ground contacts

Scratch on the heat roller

Corona contact failure

3 Are the horizontal stripes at

79mm (heat roller) intervals?

4 Are the charge electrodes between the printer body and the drum unit dirty?

High-voltage power supply

PCB failure

5 Is the problem solved after replacing the high-voltage power supply PCB?

(I-8) Black vertical streaks (in a gray background)

Yes Clean both electrodes.

Yes Replace the highvoltage power supply

PCB.

(3)

Possible cause Step

Translucent stain on the scanner window

1

Check

Is there any dirt on the scanner window?

Result

Corona failure 2 Is the corona wire dirty?

Remedy

Yes 1) Clean the scanner window.

2) If it is not effective, replace the laser unit.

Yes Clean the corona wire with the wire cleaner.

Ground contacts

(2)

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CHAPTER 4 TROUBLESHOOTING

(I-9) White vertical streaks

Possible cause Step

Translucent stain on the scanner window

Check

1 Is there any dirt on the scanner window?

Transfer failure

Condensation

User Check

(1) Try to wipe the scanner window with a soft cloth.

(2) The toner cartridge may be damaged. Install a new toner cartridge.

(3) Check the printer’s environment. High temperature and high humidity conditions can cause this problem.

(4) Damp (wet) paper might be used. Try to change to freshly unpacked paper.

2 Is the transfer roller scratched?

3 Has condensation occurred inside the printer?

Result

Yes

Remedy

1) Clean the scanner window.

2) If it is not effective, replace the laser unit.

Yes Replace the drum unit.

Yes Try to print several pages or leave the printer 2 hours to allow it to reach room temperature.

(I-10) White horizontal streaks

User Check

(1) Check the paper used meets the recommended paper specifications. A rough surfaced paper, damp paper or thick media can cause the problem.

(2) Check that the appropriate media type is selected in the printer driver.

(3) The problem may disappear by itself. Try printing about 10 pages to clear this problem especially if the printer has not been used for a long time.

(4) The drum unit may be damaged. Install a new drum unit.

Possible cause Step Check Result Remedy

Ground contacts

Developing bias contact failure

1 Are the developing bias contacts between the printer body and toner cartridge dirty?

Yes Clean the electrodes at both sides.

(4)

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(I-11) Faulty registration

Possible cause Step

Excessive paper load

Print paper

Regist rear sensor position incorrect

Drum unit failure

1

2 Is the specified weight of the recommended paper being used?

3 Is the first printing position within ±1mm of the tolerance specification?

4 Is the regist rear sensor off from the correct position?

5 high?

Check

Is the paper loaded in the paper tray more than 27mm

Is the rotation torque of the drum unit heavy?

Result Remedy

Yes Instruct the user to keep paper loads below 27mm in depth.

No Recommend to use the specified types of paper.

Yes Adjust the Y offset by using the utility software supplied.

Yes Reposition the sensor to the correct position.

Yes Replace the drum unit.

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CHAPTER 4 TROUBLESHOOTING

(I-12) Poor fixation

Possible cause

Print paper

Nip release lever

Toner sensor failure

(When printing is faint.)

Step

1

2

3

Check

Is thick paper of more than

43lb being used?

Does the position of the nip release levers in the fuser unit decompress the nip pressure?

Is the problem solved by replacing the drum unit or the toner cartridge?

Result Remedy

Yes Recommend to use the specified types of paper.

Yes Return the nip release levers to the original position.

Yes 1) Toner is empty.

2) The toner sensor is defective.

Clean the toner sensor.

3) If the wiper in the toner cartridge is broken, replace the toner cartridge with a new one.

No Replace the fuser unit. Fuser unit thermistor failure

4 Is the thermistor fitted correctly?

Low-voltage power supply

PCB failure

5 Is the problem solved by replacing the low-voltage power supply PCB?

Yes Replace the low-voltage power supply PCB.

Open the back cover and fuser cover. Push down the blue tab (1). Repeat this process on the other side. Make sure that the top of the tab and the white lever (2) are not level with each other. Close the back cover and try printing again.

2

1

1

2

Fig. 4-20

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(I-13) Image distortion

Possible cause Step

Laser unit installation

1

Check

Is the laser unit secured to the frame incorrectly?

(Check if there is any play.)

2 Is the laser diode or the scanner motor defective?

Scanner LD emission failure

Scanner motor rotation failure

Scanner connection failure

(I-14) Faint print

3 Is the scanner harness connected properly?

(Check if it is coming loose.)

Print out test print o

Print out test print o

Print out test print o

Print out test print o

Print out test print o

Print out test print o

Print out test print o

Print out test print o

Print out test print o

Print out test print o

Print out test print o

Print out test print o

Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o

Print out test print out test print out test Print out test print o Print out test print o

Print out test print out test print out test Print out test print o Print out test print o

Print out test print out test print out test Print out test print o Print out test print o

Print out test print out test print out test Print out test print o Print out test print o

Print out test print out test print out test Print out test print o Print out test print o

Print out test print out test print out test Print out test print o Print out test print o

Print out test print out test print out test Print out test print o Print out test print o

Print out test print out test print out test Print out test print o Print out test print o

Print out test print out test print out test Print out test print o Print out test print o

Print out test print out test print out test Print out test print o Print out test print o

Print out test print out test print out test Print out test print o Print out test print o

Print out test print out test print out test Print out test print o Print out test print o

Print out test print out test print out test Print out test print o Print out test print o

Possible cause Step

Printer installation

Toner cartridge

Check

1 Is the printer placed horizontally?

2 Does the problem happen immediately after replacing the toner cartridge with a new one?

3 Is the scanner window dirty? Scanner window dirty

Laser unit failure 4 Is the problem solved by replacing the laser unit?

Result Remedy

Yes Secure the unit correctly and tighten the screws.

Yes Replace the laser unit.

No Connect the harness correctly.

Result Remedy

No Place the printer on a flat surface.

Yes Remove and carefully shake the toner cartridge horizontally.

Yes Clean the scanner window with a soft dry cloth.

Yes Replace the laser unit.

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(I-15) White spots

User Check

(1) If the problem is not solved after printing a few pages, the drum unit may have glue from label stock on the exposure drum surface. Refer to Step 1 in the table

below and NOTE in the next page.

(2) The drum unit may be damaged. Install a new drum unit.

Possible cause Step

Drum unit failure 1

Check

Are the white spot at 94.2mm intervals?

Result Remedy

Yes 1) If toner or glue remains stuck, wipe it off gently with a

cotton swab. (Refer to NOTE

in the next page.)

2) If the drum surface is scratched, replace the drum unit.

Yes Replace the drum unit.

No toner

Print paper

Environment

2 Is the problem solved after replacing the drum unit?

3 Is the toner in the toner cartridge almost empty?

4 Is the problem solved after changing to specified freshly unpacked paper?

5 Does the problem still appear after the printer has warmed up?

Yes Replace the toner cartridge with

Yes

Yes a new one.

Damp (wet) paper might be used. Recommend to change freshly unpacked paper.

1) Replace the drum unit.

2) Advise the user of the specified print environment.

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NOTE:

Clean the drum unit as follows.

(1) Put the print sample in front of the drum unit, and find the exact position of the poor print.

< Examples of poor print quality >

Fig. 4-21

94 mm

(3.7 in.)

94 mm

(3.7 in.)

White Spots on black text and graphics at 94 mm (3.7 in.) intervals

94 mm

(3.7 in.)

94 mm

(3.7 in.)

Black Spots at 94 mm (3.7 in.) intervals

Fig. 4-22

(2) Turn the drum unit gear by hand while looking at the surface of the OPC drum.

Fig. 4-23

(3) When you have found the mark on the drum that matches the print sample, wipe the surface of the OPC drum with a cotton swab until the dust or paper powder on the surface comes off.

Fig. 4-24

!

CAUTION:

DO NOT clean the surface of the photosensitive drum with a sharp object.

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(I-16) Black spots

User Check

(1) If the problem is not solved after printing a few pages, the drum unit may have glue from label stock on the exposure drum surface. Refer to Step 1 in the table

below and NOTE in the previous page.

(2) The drum unit may be damaged. Install a new drum unit.

Possible cause Step

Drum unit

Drum connection failure

Fuser unit

High-voltage power supply

PCB failure

Check

1 Are the spots at 94.2mm intervals?

(The problem is not solved after printing a few pages.)

2 Is the contact between the drum unit and printer body connected correctly?

3 Are the spots at 79mm intervals?

(The problem is not solved after printing a few pages.)

4 Is the problem solved after replacing the high-voltage power supply PCB?

Result Remedy

Yes 1) If toner or glue remains stuck, wipe it off gently with a cotton swab. (Refer

to NOTE in the

previous page.)

2) If the exposure drum is scratched or deteriorated

(exposed), replace the drum unit.

No Clean contact electrode both on the drum unit and in the printer body.

Yes 1) Check and clean the heat roller with a cloth dampened with alcohol.

2) Replace the fuser unit.

Yes Replace the high-voltage power supply PCB.

Ground contacts

(7)

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(I-17) Black band

Corona dirty

Possible cause

Corona failure

Step Check

1 Is the wire cleaner at its home position?

2 Is the corona wire dirty?

Result Remedy

No Return the wire cleaner to its home position.

Yes 1) Clean the corona wire.

2) If the problem still appears after cleaning, replace the drum unit.

Ground contacts

(2)

(2)

(I-18) Gray background

Possible cause Step Check Result Remedy

Print paper

Toner sensor failure

(printer side)

1 Does the paper being used meet the paper specification

(weight, etc.).

2 Is

Ready

LED still lighted after the toner cartridge and drum unit are taken out? (The front cover is closed.)

No Recommend to use the specified types of paper.

Yes Recommend to change to freshly unpacked paper.

Yes Toner sensor failure. Clean the toner sensor and check the toner sensor connection.

Toner cartridge failure

Drum unit failure

3 Is the problem solved after replacing the toner cartridge?

4 Is the problem solved after replacing the drum unit?

Yes

Yes

Replace the toner cartridge.

Replace the drum unit.

No Replace the high-voltage power supply PCB.

NOTE:

The following cases increase the possibility of this problem.

Acid paper is being used.

The drum unit is at the end of its life.

There is dust or paper powder.

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(I-19) Hollow print

User Check

(1) Check the paper used meets the recommended paper specifications.

(2) Select the ‘Thick paper mode’ in the printer driver, or use thinner paper than you are currently using.

(3) Check the printer’s environment, conditions such as high humidity may cause this situation to occur.

Possible cause Step

Print paper 1

Check

Is thick paper of more than

43lb being used or extremely rough surface paper?

Result

No

Remedy

Yes Recommend to use the specified types of paper.

Refer and compare with I-15 .

(I-20) Downward fogging of solid black

Possible cause Step Check

Toner cartridge failure

1 Is the problem solved after replacing the toner cartridge?

High-voltage power supply

PCB failure

(I-21) Horizontal lines

2 Is the problem solved after replacing the high-voltage power supply PCB?

Result Remedy

Yes Replace the toner cartridge.

Yes Replace the high-voltage power supply PCB.

Possible cause Step

Paper tray contacts

Drum unit

1

Check

Are the ground contacts on the right side of the paper tray connecting correctly?

2 Are the high-voltage power supply and drum unit contacted correctly?

Result

Remedy

No Clean the contacts.

No Clean the contacts.

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(I-22) Light rain

Possible cause Step

Drum unit failure

Drum connection failure

Check

1 Is the problem solved after replacing the drum unit?

2 Is the contact between the drum unit and printer body connected correctly?

Result

Remedy

Yes Replace the drum unit. contact electrode both on the drum unit and in the printer body.

Yes Replace the highvoltage power supply

PCB.

Ground contact

(7)

High-voltage power supply

PCB failure

(I-23) Ghost

3 Is the problem solved after replacing the high-voltage power supply PCB?

Drum unit failure

User Check

(1) Check the paper used meets the recommended paper specifications. Damp paper, thick media or rough surfaced paper can cause the problem.

(2) Check the printer’s environment. High temperature and high humidity conditions can cause the problem.

(3) Check that the appropriate media type is selected in the printer driver.

(4) Try installing a new drum unit.

Possible cause Step

Driver setting

Check

1 Is thin paper such as 64g/m used under the thick paper mode?

2

Result

Yes

Remedy

1) Change the current mode to the normal mode from the driver setting.

2) Print 5 or 6 blank pages if this problem occurs.

Yes Replace the drum unit.

High-voltage power supply

PCB failure

2 Is the problem solved after replacing the drum unit?

3 Is the problem solved after replacing the high-voltage power supply PCB?

Yes Replace the high-voltage power supply PCB.

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(I-24) Toner specks

User Check

(1) Check the paper used meets the recommended paper specifications. A rough surfaced paper may cause the problem.

(2) The toner cartridge may be damaged. Install a new toner cartridge.

(3) The drum unit may be damaged, or may be nearly at the end of life. Install a new drum unit.

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Toner cartridge

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(2) Wire cleaner

Drum Unit

(3) Charge

(5) Grid

(4) Developer roller

(1) Exposure drum

(7) Cleaner

(6) Transfer roller

Fig. 4-25

6.4.2 Printer body & paper tray

(5) Grid

(7) Cleaner

(3) Charge

(4) Developer roller

(1) Exposure drum

(6) Transfer roller

Fig. 4-26

<How to clean the electrodes>

Turn off the power switch. Unplug the machine from the AC power outlet, and leave the machine for a few minutes. Then, wipe the electrodes above carefully with a dry lint-free cloth. Be careful not to change the shapes of the electrodes.

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7. INCORRECT PRINTOUT

When the data is not printed correctly as it is seen on the PC screen, follow the procedures below in the event of a specific error.

(P-1) The printer prints unexpectedly or it prints garbage data.

User Check

(1) Check if the printer cable is not too long. It is recommended to use a parallel cable or USB cable that is no longer than 2 meters (6.6 feet) in length.

(2) Check that the printer cable is not damaged or broken. Check also that the printer cable is connected to the correct interface connectors of both the printer and PC.

(3) If an interface switching device is used, remove it and connect the computer directly to the printer and try again.

(4) Check that the appropriate printer driver is selected as ‘Set as Default’. Check also that the correct print port is set for the selected printer driver.

(5) Check that the printer is not connected to the same port which is also connected to a mass storage device or scanner. Remove all other devices and connect the port to the printer only.

(6) Turn off the

Status Monitor

in the

Device Options

tab in the printer driver.

(7) Try printing the test page referring to ‘Test Sample Page’ in Chapter 7.

(8) Try resetting the factory settings.

Possible cause Step Check Result Remedy

Failure inside the printer

1 Is it possible to print the test

page with the method of ‘Test

Sample Page’ in Chapter 7 ?

No Identify the error type, then refer to the specified section of this chapter.

(P-2) Unable to print full pages of a document with the “PRINT OVERRUN” message.

User Check

(1) Press the button on the control panel to print the data remaining in the printer.

(2) If this does not clear the error, reduce the complexity of your document or reduce the printer resolution.

(3) Add more memory.

(4) Set page protection to

AUTO

by using the supplied printer driver or Remote Printer Console program.

(5) Change the following setting in the printer driver and try again. The best combination of settings below will vary depending on your document.

Graphic Mode / TrueType

TM

mode / Use Printer TrueType

TM

Fonts

NOTE:

This problem may appear if the data is too complex. If it is not cleared by taking the actions above, it will be impossible to print such data under the printer specifications.

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(P-3) Unable to print full pages of a document with the “MEMORY FULL” message.

User Check

(1) Press the button on the control panel to print the data remaining in the printer.

(2) Reduce the complexity of your document or reduce the printer resolution.

(3) Add more memory.

NOTE:

This problem may appear if the data is too complex.

Possible cause Step Check Result Remedy

Main PCB failure

1 Is it possible to print after reducing the data of a document?

Yes Replace the main PCB.

(P-4) Headers or footers are not printed out even though they are viewed on PC screen.

User Check

Most laser printers have a restricted area that cannot be printed on. Usually the first two lines and last two lines of text cannot print (leaving 62 printable lines). Adjust the top and bottom margins in your document to allow for this.

(P-5) The printer sometimes prints a couple of characters and then ejects the page.

User Check

(For DOS environment only)

The application printer emulation setting and the printer’s emulation do not match. Check in the application software which printer you have selected to make sure the printer is set up correctly.

Remember that the printer emulates widely used printer selections:

HP Laser Jet 6P, HP Laser Jet 6P, Epson FX-850, IBM Proprinter XL

Try setting the printer into HP emulation and then select the HP LaserJet 6P printer in the application software.

(P-6) The headers or footers appear when the document displays on the screen but they do not show up when it is printed.

User Check

Adjust the top and bottom margins of your document.

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8. NETWORK PROBLEM

If the error related to network occurs, refer to the following sections;

The Brother print server is not found during setup of the network print software installation or from the printer driver of the Brother printer in Windows

®

.

The Brother print server is not found using the Simple Network Configuration capabilities of Mac OS

®

X.

Make sure you have completed the IP address setting of the Brother print server according to

Chapter 2 of this User’s Guide before installing the network print software or printer driver.

Check the following:

1. Make sure that the printer is powered on, is on-line and ready to print.

2. Check to see if there is any LED activity. Brother print servers have two LEDs on the back panel of the printer.

Network status LEDs

(Light emitting diodes)

(For HL-5250DN)

Fig. 4-27

Both LEDs are off: the print server is not connected to the network.

The upper LED is on: Link status

The upper LED is blinking: Activity status

The lower side LED is on: Link speed is 100M.

The lower side LED is off: Link speed is 10M.

3. Print the Printer Settings Page and check if the settings such as IP address settings are correct for your network. The problem may be the result of mismatched or duplicate IP address. Verify that the IP address is correctly loaded into the print server. And make sure that no other nodes on the network have this IP address. For information on how to print the Printer Settings Page, see Printing the Printer Settings Page on page 7-6.

4. Verify that the print server is on your network as follows:

For Windows

®

Try pinging the print server from the host operating system command prompt with the command:

ping ipaddress

Where ipaddress

is the print server IP address (note that in some instances it can take up to two minutes for the print server to load its IP address after setting the IP address).

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For Macintosh

®

For Mac OS

®

9.1 to 9.2

(1) From the

Apple

menu, open the

Chooser

.

(2) Click the

Brother Laser (IP)

icon, and make sure that your print server name appears in the right frame. If it is visible, then the connection is good. Otherwise, go to Step 5.

For Mac OS

®

X 10.2.4 or greater

(1) From the

Go

menu, select

Applications

.

(2) Open the

Utilities

folder.

(3) Double-click the

Printer Setup Utility

icon.

(4) Click

Add

.

(For Mac OS

®

(For Mac OS

®

X 10.2.4 to 10.3) Go to (5).

X 10.4) Go to (6).

(5) (For Mac OS

®

X 10.2.4 to 10.3)

Make the following selection.

(6) Make sure that your print server appears. If it is visible, then the connection is good.

Otherwise, go to Step 5.

5. If you have tried 1 to 4 above and it does not work, then reset the print server back to the default factory settings and try from the initial setup again. For information how to reset to the default factory settings, see Restoring the network settings to factory default on page

7-7.

Windows

®

) Firewall setting on your PC may be rejecting the necessary network connection. Follow the instructions below to disable the Firewall. If you are using a personal Firewall software, see the User’s Guide for your software or contact the software manufacturer.

Windows XP SP2 users

the button,

Settings

, and then

Control Panel

. click . the tab. Verify that

Off (not recommended)

is selected.

(4) Click .

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Windows

®

XP SP1 users

(1) Locate the “Windows” key on your keyboard. These are the keys with the Windows logo on it.

(2) Press the “Windows” key plus the “E” key to open

My Computer

.

(3) On the left, right click

My Network Places

, click

Properties

, then right click

Local

Area Connection

and click

Properties

.

(4) Click the tab. Under

Internet Connection Firewall

, verify that the box next to

Protect my computer...

is unchecked. If the box is selected, click the box to remove the check. Then, click

OK

.

(5) Once your firewall is disabled, try reinstalling the Brother software package. For instructions on how to install from the CD-ROM, use the Quick Setup Guide we have provided with the machine.

(6) If the installation completed successfully, the Firewall on your computer is rejecting the necessary network connection. In this case, you will need to disable the Firewall on your computer

whenever you install the network drivers.

NOTE:

After the Brother software package is installed, enable again your Firewall. For instructions on how to re-enable your Firewall software, refer to your User’s Guide or contact the Firewall software manufacturer.

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<Print job is not printed>

Make sure the status and configuration of the print server. Check following:

1. Make sure that the printer is powered on, is on-line and ready to print.

2. Print the Printer Settings Page of the printer and check if the settings such as IP address settings are correct for your network. The problem may be the result of mismatched or duplicate IP address. Verify that the IP address is correctly loaded into the print server.

And make sure that no other nodes on the network have this IP address.

3. Verify that the print server is on your network as follows:

For Windows

®

(1) Try pinging the print server from the host operating system command prompt with the command:

ping ipaddress

Where ipaddress

is the print server IP address (note that in some instances it can take up to two minutes for the print server to load its IP address after setting the IP address).

(2) If a successful response is received, then proceed to Windows

Windows NT

®

95/98/Me and

®

4.0 Peer-to-Peer print (LPR) troubleshooting, and Windows

®

2000/XP

IPP troubleshooting. Otherwise, proceed to Step 4.

For Macintosh

®

For Mac OS

®

9.1 to 9.2

(1) From the

Apple

menu, open the

Chooser

.

(2) Click the

Brother Laser (IP)

icon, and make sure that your print server name appears in the right frame. If it is visible, then the connection is good. Otherwise, go to Step

(4).

For Mac OS

®

X 10.2.4 or greater

(1) From the

Go

menu, select

Applications

.

(2) Open the

Utilities

folder.

(3) Double-click the

Printer Setup Utility

icon.

(4) Click

Add

.

(For Mac OS

®

(For Mac OS

®

X 10.2.4 to 10.3) Go to (5).

X 10.4) Go to (6).

(5) (For Mac OS

®

X 10.2.4 to 10.3)

Make the following selection.

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(6) Make sure that your print server appears. If it is visible, then the connection is good.

Otherwise, go to Step 4.

4. If you have tried 1 to 4 above and it does not work, then reset the print server back to the default factory settings and try from the initial setup again. For information how to reset to the default factory settings, see Restoring the network settings to factory default on page

7-7.

<Error during printing>

If you try to print while other users are printing large amounts of data (e.g. many pages or color pages with high resolution), the printer is unable to accept your print job until the ongoing printing is finished. If the waiting time of your print job exceeds a certain limit, a time out situation occurs, which causes the error message. In such situations, execute the print job again after the other jobs are completed.

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<Windows

®

95/98/Me and Windows NT

®

4.0 Peer-to-Peer print (LPR) troubleshooting>

If you are having trouble printing on a Windows

®

95/98/Me, Windows NT

®

4.0 or later Peer-to-

Peer network (LPR method), check the following:

1. Make sure that the Brother LPR Port driver is correctly installed and configured according to the Windows

®

95/98/Me or Windows NT

®

4.0 Peer-to-Peer chapters.

2. Try to turn the

Byte Count

on in the

Configure port

area of printer driver properties.

You may find that during the installation of BLP software, the screen that prompts you for a

Port name is not displayed. This may happen on some Windows

4.0 computers. Press the ALT and TAB keys to make it appear.

®

95/98/Me and Windows NT

®

<Windows

®

95/98/Me and Windows NT

®

4.0 Peer-to-Peer print (NetBIOS) troubleshooting>

If you are having trouble printing on a Windows

®

Peer network (NetBIOS), check the following:

95/98/Me, Windows NT

®

4.0 or later Peer-to-

1. Make sure that the Brother NetBIOS Port driver is correctly installed and configured according to the Windows

®

95/98/Me or Windows NT

®

4.0 Peer-to-Peer (NetBIOS) chapters. You may find that during the installation of the port driver, the screen that prompts you for a Port name is not displayed. This happens on some Windows

®

95/98/Me and Windows NT

®

4.0 computers. Press the ALT and TAB keys to make it appear.

2. Make sure that the print server is configured to be in the same workgroup or domain as the rest of your computers. It may take several minutes for the print server to appear in the network neighborhood.

<Windows

®

2000/XP IPP troubleshooting>

Want to use a different Port number other than 631.

If you are using Port 631 for IPP printing, you may find that your firewall may not let the print data through. If this is the case, use a different port number (port 80), or configure your

Firewall to allow Port 631 data through.

To send a print job using IPP to a printer using Port 80 (the standard HTTP port) enter the following when configuring your Windows

®

2000/XP system. http://ip_address/ipp

Get More Info option in Windows

®

2000 not working

If you are using a URL of: http://ip_address:631 or http://ip_address:631/ipp , the

Get More Info

option in Windows

Info

option, use the following URL:

®

2000 will not function. If you wish to use the

Get More

http://ip_address

This will then force Windows

® server.

2000/XP to use Port 80 to communicate with the Brother print

<Web browser troubleshooting (TCP/IP)>

1. If you can not connect to the print server using your web browser it may be worth checking the Proxy Settings of your browser. Look in the Exceptions setting and if necessary, type in the IP address of the print server. This will stop your PC from trying to connect to your

ISP or proxy server every time you wish to look at the printer server.

2. Make sure that you are using the proper web browser, we recommend Microsoft Internet

Explorer version 6.0 (or higher) or Netscape

®

version 7.1 (or higher).

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8.4 Wireless Network Troubleshooting

<Wireless setup problems>

The Brother print server is not found during setup using the automatic installer application on the CD-ROM.

1. Make sure that the printer is powered on, is on-line and ready to print.

2. Move your Brother printer closer to the computer and try again.

3. Reset the print server back to its default factory settings and try again. For the information how to reset to the factory default settings.

<Wireless connection problem>

The wireless network connection is sometimes disabled.

The wireless network connection status is affected by the environment where the Brother printer and other wireless devices are located. The following conditions may cause connection problems:

- A concrete or metal framed wall is installed between the Brother printer and the access point.

- Electric appliances such as televisions, computer appliances, microwave ovens, intercoms, mobile/cellular phones and the battery chargers and AC power adapters are installed close to your network.

- A broadcast station or high-tension wire is located close to your network.

- A fluorescent light is being switching ON or OFF.

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

1. SAFETY PRECAUTIONS

To avoid creating secondary problems by mishandling, follow the warnings and precautions below during maintenance work.

WARNING

Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the printer.

Some parts inside the printer are extremely hot immediately after the printer is used.

When opening the front cover or back cover to access any parts inside the printer, never touch the red colored parts shown in the following figures.

!

CAUTION:

(1) Be careful not to lose screws, washers, or other parts removed.

(2) Be sure to apply grease to the gears and applicable positions specified in this chapter.

(3) When using soldering irons or other heat-generating tools, take care not to accidentally damage parts such as wires, PCBs and covers.

(4) Static electricity charged in your body may damage electronic parts. When transporting

PCBs, be sure to wrap them in conductive sheets.

(5) When replacing the PCB and all the other related parts, put on a grounding wrist band and perform the job on a static mat. Also take care not to touch the conductor sections on the flat cables or on the wire harness.

(6) Be sure to replace self-tapping screws correctly, if removed. Unless otherwise specified, tighten screws to the following torque values.

TAPTITE, BIND or CUP B

M3:

M4: y

m y m

TAPTITE, CUP S

M3:

(7) After disconnecting flat cables, check that each cable is not damaged at its end or shortcircuited.

(8) When connecting flat cables, do not insert them at an angle. After insertion, check that the cables are not at an angle.

(9) When connecting or disconnecting cable connectors, hold the connector body, not the cables. If the connector has a lock, release the connector lock first to release it.

(10) After a repair, check not only the repaired portion but also all connectors. Also check that other related portions are functioning properly before operational checks.

5-1

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

2. PACKING

Drum/toner ASSY

Pad

Pad

Accessory bag

AC power cord

Option carton

Pad

Printer

Fig. 5-1

5-2

Carton

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

3. SCREW TORQUE LIST

1 Frame L/Drive Unit

No. Parts

1

2

3

4

5

Parts name Location Pcs.

Tightening torque

N m (kgf • cm)

085311016 Taptite, bind B M3 x 10

Ejector solenoid

087320616 Taptite, cup S M3 x 6

Main motor

085311016 Taptite, bind B M3 x 10

T1, MP, Register solenoid

085411216 Taptite, bind B M4 x 12

Gear plate

085411216 Taptite, bind B M4 x 12

Main shield

1

4

3

8

3

0.5

0.7

0.5

0.9

0.9

±

0.1(5

±

1)

±

0.1(7

±

1)

±

0.05(5

±

0.5)

±

0.05(9

±

0.5)

±

0.1(9

±

1)

1

2

No. Parts Parts name Location Pcs.

Tightening torque

N m (kgf • cm)

LM2048001

Screw, pan (S/P washer)

M3.5 x 6

Ground wire

085411216 Taptite, bind B M4 x 12

SW holder

1

1

0.5

0.8

±

0.05 (5

±

0.5)

±

0.1(8

±

1)

3

4

5

085411216 Taptite, bind B M4 x 12

Under bar

085411216 Taptite, bind B M4 x 12

Paper feed unit

4

8

0.7

±

0.1(7

±

1)

0.8

±

0.1(8

±

1)

085411216 Taptite, bind B M4 x 12

±

0.1(8

±

1)

6

7

085411216 Taptite, bind B M4 x 12

±

0.1(8

±

1)

085411216 Taptite, bind B M4 x 12

Base plate 9

0.8

±

0.1(8

±

1)

4

8

9

10

LM5867001 Taptite, cup S M3 x 6 SR Main PCB

LM5867001 Taptite, cup S M3 x 6 SR Shield cover

087320616 Taptite, cup S M3 x 6

Scanner plate

4

6

0.75

±

0.1(7.5

±

1)

0.75

±

0.1(7.5

±

1)

0.7

±

0.1(7

±

1)

No. Parts

1

2

3

4

Parts name

085310816 Taptite, bind B M3 x 8

085310816 Taptite, bind B M3 x 8

085310816 Taptite, bind B M3 x 8

085411216 Taptite, bind B M4 x 12

1

2

3

4 Cover

No. Parts Parts name

085411216 Taptite, bind B M4 x 12

087310816 Taptite, cup B M3 x 8

085411216 Taptite, bind B M4 x 12

Location Pcs.

Tightening torque

N m (kgf • cm)

PE EG sensor 1

0.5

±

0.1(5

±

1)

MP PE sensor

MP feed frame

1

2

0.5

±

0.1(5

±

1)

0.5

±

0.1(5

±

1)

Regist frame (2),

MP tray unit (2),

Chute 2 (2)

6

0.7

±

0.1(7

±

1)

Location Pcs.

Tightening torque

N m (kgf • cm)

Inner chute

Panel PCB

Cover

6 (7) 0.8

±

0.1(8

±

1)

3

0.5

±

0.1(5

±

1)

6

0.7

±

0.1(7

±

1)

5-3

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

4. HARNESS ROUTING

1

MP PE sensor ASSY

Hook "A"

Printer top side

(Printer body upside down)

Hole

Hook "B"

MP feed frame

Hook "A"

MP PE sensor ASSY

MP feed frame

5-4

High-voltage PS PCB ASSY

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

2

PE EG sensor ASSY

Hole "A"

Hook "B"

PE EG sensor ASSY

Printer top side

(Printer body upside down)

Hook "B"

Hole "A"

PE EG sensor ASSY

Paper feed frame

Paper feed frame

Hook "A"

3

High-voltage PS PCB ASSY

Interlock SW ASSY

Relay front PCB ASSY

Pin

Hooks

Interlock SW ASSY

Frame L

Pin

Hook

5-5

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

4

Toner sensor PCB unit ASSY

Relay front PCB ASSY

Pin

Hooks

Frame L

Hook

5

Pin

Hook

Toner sensor PCB unit ASSY

Hook

Register solenoid ASSY

Relay front PCB ASSY

Pin

Hooks

Pin

Frame L

Hook

Hook

Hook

Register solenoid ASSY

Hook

Hook

5-6

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

6

MP solenoid ASSY

Relay front PCB ASSY

Pin

Hooks

Frame L

Hooks

7

Pin

Hook

MP solenoid ASSY

T1 solenoid ASSY

Relay front PCB ASSY

Pin

Hooks

Frame L

Hooks

Pin

Hook

T1 solenoid ASSY

5-7

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

8

Relay front PCB ASSY

Frame L

Hook

Relay front PCB ASSY

Main PCB

9

Laser unit

Frame L

Holes

Core

LD harness

(Flat cable)

Main PCB

Hook

Protective film

Polygon motor (Flat cable)

Gear cover

Laser unit

5-8

Confidential

10

Fan motor 60 unit

Frame L

Hooks

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

Fan motor 60 unit

Toner LED PCB unit ASSY

11

Fan motor 60 unit LV

Frame L

Hooks

Hook

Hook

Hook

Toner LED PCB unit ASSY

Fan motor 60 unit LV

5-9

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

12

Toner LED PCB unit ASSY

Hooks

Frame L

Toner LED PCB unit ASSY

Hook

Hole

High-voltage PS PCB ASSY

Hook

Hook

Hooks

Hole

5-10

Printer top side

(Printer body upside down)

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

13

PS PCB unit

Printer top side

(Printer body upside down)

Base plate LV

PS PCB unit

Hook

SW holder ASSY

Power supply switch

<A view>

PS PCB unit terminal

14

FG harness

Main PCB

<A view>

Core

Inlet harness ASSY

Hooks

Shield cover

Main PCB

Shield cover

FG harness

5-11

FG harness

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

15

High-Voltage PS PCB ASSY

Insulation sheet

Hole High-Voltage

PS PCB ASSY

Main PCB

HVPS PCB harness

(Flat cable)

Printer top side

(Printer body upside down)

HVPS PCB harness

(Flat cable)

16

Wireless PCB (PCB T60H929.00 ASSY 02)

Hooks

LD harness

Air duct

Hook

Frame R

Hole

Wireless PCB harness

Hook

<A view>

Main PCB

<A view>

Main PCB

Frame L

Hole

Wireless PCB

(PCB T60H929.00 ASSY 02)

5-12

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

5. LUBRICATION

Gear 82R

Apply grease on the cogs of the motor side

BG2

Drive sub ASSY

* BG2: KANTO KASEI BG- MU (2 mm dia. Ball)

BG2

DEV gear 37R joint drive

Gear cover

* BG2: KANTO KASEI BG- MU (2 mm dia. Ball)

5-13

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

6. DISASSEMBLY FLOW

7.1

Basic Operation

5s / 5s

7.2

AC Cord

7.9

7.11

15s / 15s

Tray MP ASSY

35s / 40s

Access Cover/

Side Cover L

5s / 5s

7.3

Drum/ Toner ASSY

7.10

30s / 30s

MP Tray Cover ASSY/

Process Cover ASSY

7.12

Main PCB

50s / 50s

7.25

20s / 20s

Gear 17/20/23

Disassembly

/ Re-Assembly (sec.)

5s / 5s

DX Feed ASSY

7.4

10s / 10s

Paper Tray

7.13

55s / 60s

Gear Plate Calking ASSY AL/

Develop Joint/

Main Motor ASSY AL

7.36

Frame L

25s / 25s

7.14

7.16

7.26

7.38

MP Unit

70s / 70s

30s / 35s

Side Cover R

7.37

Frame R

20s / 20s

7.33

15s / 15s

Toner LED PCB Unit ASSY

7.34

10s / 10s

Fan Motor 60 Unit

7.35

10s / 10s

Fan Motor 60 Unit LV

7.44

15s / 20s

Wireless PCB

(PCB T60H929.00 ASSY 02)

(HL-5280DW)

25s / 10s

7.27-2 7.27-1

Top Cover Printed ASSY

(HL-5240/5250DN)

10s / 10s

Panel PCB ASSY

7.27-3

10s / 10s

SW Key A/ B

7.28-1

25s / 10s

Top Cover2 Printed ASSY/

Panel Plate Printed ASSY

(HL-5270DN/5280DW)

7.29

10s / 15s

Filter

7.28-2

45s / 50s

Inner Chute/

Pinch Roller Holder

7.30

40s / 40s

Laser Unit

7.28-3

15s / 15s

Panel PCB ASSY

7.31

70s / 70s

PS PCB Unit

7.32

40s / 40s

High-Voltage PS PCB ASSY

7.8

7.5

35s / 45s

Main Shield Plate ASSY

20s / 30s

Relay Front PCB ASSY

7.39

7.27-4

40s / 50s

Fuser Unit

5s / 5s

Back Cover

45s / 50s

Inner Chute/

Pinch Roller Holder

7.28-4

15s / 20s

SW Key A/ B/ C

Set Key Printed ASSY

7.40

7.6

5s / 10s

Regist Actuator Front/

Regist Actuator Spring

7.41

10s / 10s

Roller Holder ASSY

7.42

25s / 40s

PE Actuator/

Edge Actuator/

Edge Actuator Spring

7.43

20s / 20s

PE EG Sensor ASSY

20s / 10s

DX Blank Cover

(HL-5240)

7.15

45s / 50s

Relay Rear PCB ASSY/

Connector

7.17

20s / 30s

MP Solenoid ASSY

7.18

15s / 20s

Drive Release Link

10s / 20s

Regist Actuator Rear/

Regist Actuator Spring

7.28-5

20s / 20s

LCD Holder ASSY

7.7

15s / 20s

Outer Chute ASSY

7.20

15s / 20s

Toner Sensor PCB

7.19

15s / 20s

T1 Solenoid ASSY

7.21

15s / 15s

Register Solenoid ASSY

7.22

15s / 20s

Ejector Solenoid ASSY

(HL-5250DN/5270DN/5280DW)

7.23

20s / 25s

Interlock SW ASSY

7.24

20s / 30s

New Toner Actuator

5-14

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7. DISASSEMBLY PROCEDURE

(1) Disconnect the AC cord from the Printer.

Printer

<Back side>

AC cord

Fig. 5-2

(1) Press the front cover release button.

(2) Open the Front cover.

(3) Remove the Drum/toner ASSY.

1

2

<Front side>

Drum/toner ASSY

3

Front cover

Fig. 5-3

5-15

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.3 DX Feed ASSY

(1) Remove the DX feed ASSY.

<Back side>

DX feed ASSY

Fig. 5-4

(1) Close the Front cover.

(2) Pull out the Paper tray.

(3) Remove the paper from the Paper tray.

Paper tray

Fig. 5-5

5-16

Front cover

1

<Front side>

2

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(4) Pull up the back side of the Separation pad ASSY.

(5) Push the Hooks provided on both sides of the Separation pad ASSY inwards.

(6) Pull up the Separation pad ASSY.

Separation pad ASSY

Hooks

5

Hook

Hook

5

6

4

Paper tray

(7) Remove the Separation pad spring.

Fig. 5-6

Separation pad spring

<Front side>

Fig. 5-7

5-17

Paper tray

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(8) Remove the Lift gear 46.

Plate up plate

Plate up plate

Lift gear 46

Hook

Lift gear 46

Hook

Fig. 5-8

(9) Remove the Gear 21-16.

Paper tray

Gear 21-16

Fig. 5-9

Paper tray

5-18

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(10) Remove the Gear 15.

Gear 15

Fig. 5-10

Paper tray

<Front side>

5-19

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(1) Open the Back cover.

(2) Remove the Arms of the Back cover from the Pins.

(3) Remove the Back cover.

Pin

2

1

3

Pin

Back cover

Fig. 5-11

7.6 DX Blank Cover (For HL-5240)

(1) Push the Hooks on both sides of the DX blank cover inwards to release them, and remove the DX blank cover.

Hook

Hook

Fig. 5-12

5-20

DX blank cover

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7.7 Outer Chute ASSY

(1) Hold the Knobs on the Outer chute ASSY and pull down this to your side.

(2) Remove the Arms of the Outer chute ASSY from the Pins.

(3) Remove the Outer chute ASSY.

Pin

2

<Back side>

1

3

1

Knob

Pin

Knob

Outer chute ASSY

1

Fig. 5-13

(4) Remove the bind B M3x8 Taptite screw.

(5) Lift up the side where the eject actuator is assembled of the Sub outer chute slightly (to the direction of 5a), and move the Sub outer chute to the direction of 5b.

(6) Lift up the Sub outer chute to remove.

Sub outer chute

Taptite, bind B M3x8

Hooks

6

5b

5a

Outer chute ASSY

Pin

Fig. 5-14

5-21

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(7) Push the Hook of the Sub outer chute (indicated by the arrow 7a), and move the Eject actuator to the direction of 7b.

(8) Lift up the Eject actuator to remove.

(9) Remove the Eject actuator spring.

Eject actuator spring

Rib

Eject actuator

8

7b

9

Sub outer chute

7a

Hook

Fig. 5-15

Assembling Note:

When assembling the Eject actuator spring, ensure that its direction is correct referring to the figure below.

Eject actuator

Eject actuator spring

Fig. 5-16

Sub outer chute

5-22

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(1) Remove the bind B M4x16 Taptite screw. Release the Hooks in the order of 1a, 1b and

1c. Remove the FU harness cover 1.

1a 1b

1c

Taptite, bind B M4x16

FU harness cover 1

Hooks

Fig. 5-17

(2) Remove the Heater terminal L and Heater terminal S from the Fuser unit while holding the

Fuser unit.

Fuser unit

Heater terminal L

Fig. 5-18

Heater terminal S

5-23

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(3) Pull the FU harness cover 2 to the direction of 3a while pressing the Hook and pull out the

FU harness cover 2 from the back of the printer.

3a

FU harness cover 2

Hook

3b

Fig. 5-19

(4) Disconnect the connectors of the Thermistor ASSY M and Thermistor ASSY S from the

Relay rear PCB ASSY, and remove the harnesses of these thermistors.

Thermistor ASSY M

Fuser unit

Thermistor ASSY S

Relay rear PCB ASSY

Fig. 5-20

5-24

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(5) Remove the cup B M4x16 Taptite screw, and then remove Fuser unit.

Taptite, cup B M4x16

Fuser unit

Fig. 5-21

7.9 Tray MP ASSY

(1) Open the MP tray cover ASSY.

(2) Release the Bosses of the Tray MP ASSY from the MP tray cover ASSY.

(3) Remove the Tray MP ASSY.

Process cover ASSY

Boss

Boss

2

3

2

Fig. 5-22

Tray MP ASSY

1

MP tray cover ASSY

5-25

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.10 MP Tray Cover ASSY/Process Cover ASSY

(1) Push the front cover release button.

(2) Open Process cover ASSY.

(3) Release the Hook to remove the Process cover stopper.

1

Process cover ASSY

2

Drive release link

Hook

3

MP tray cover ASSY

Process cover stopper

Fig. 5-23

(4) Remove the MP tray cover ASSY and the Process cover ASSY to the direction of 4a and

4b to release the Bosses, and remove them.

Boss

4a

4b

MP tray cover ASSY

Fig. 5-24

Boss

Process cover ASSY

5-26

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(5) Pull the Arm outwards and remove the Process cover ASSY from the MP tray cover

ASSY.

Process cover ASSY

Arm

MP tray cover ASSY

Fig. 5-25

(6) Remove the cup B M4x10 Taptite screw, and then remove the Process cover stopper.

Process cover

Process cover stopper

Taptite, cup B M4x10

Fig. 5-26

(7) Remove the Support lap from the Process cover.

Support lap

Process cover

Fig. 5-27

5-27

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.11 Access Cover/Side Cover L

(1) Remove the Access cover.

Access cover

1

<Left side>

Fig. 5-28

(2) Remove the two bind B M4x12 Taptite screws, and then remove the Side cover L by releasing the Hooks from 2a to 2d.

Taptite, bind B M4x12

Hook

Side cover L

2d

2a

Hooks

2c

2b

Fig. 5-29

Hooks

Taptite, bind B M4x12

5-28

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(1) Remove the four cup S M3x6 SR Taptite screws, remove the FG harness and then remove the Shield cover.

Taptite, cup S M3x6 SR

Taptite, cup S M3x6 SR

Shield cover

FG harness

Fig. 5-30

(2) Disconnect the five connectors and six flat cables from the Main PCB.

NOTE:

- After disconnecting the flat cable(s), check that each cable is not damaged at its end or short-circuited.

- When connecting the flat cable(s), do not insert it at an angle. After insertion, check that the cable is not at an angle.

LD harness (Flat cable)

Panel PCB connector

Relay front (Flat cable)

DX solenoid connector

Wireless PCB connector (For HL-5280DW)

Polygon motor (Flat cable)

Main PCB

LVPS PCB connector

Main motor (Flat cable)

Relay rear (Flat cable)

LT connector

HVPS PCB (Flat cable)

Fig. 5-31

Assembling Note:

When assembling the Main PCB, ensure to place the Ferrite Core correctly. Refer to

“ APPENDIX 7.LOCATION OF THE FERRITE CORE ” in details.

5-29

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(3) Remove the four cup S M3x6 SR Taptite screws and two Screws to remove the Main PCB by following the direction of 3a and 3b.

Main PCB

Screws

3a

3b

Taptite, cup S M3x6 SR

FG harness

Fig. 5-32

7.13 Gear Plate Calking ASSY AL/Develop Joint/ Main Motor ASSY AL

(1) Place the printer body so that the Frame L is at the top.

(2) Remove the eight bind B M4x12 Taptite screws and one cup S M3x6 taptite screw.

(3) Remove the Gear plate calking ASSY AL from the Frame L.

NOTE:

Be careful not to drop the gear.

Taptite, bind B M4x12

Taptite, bind B M4x12

Gear plate calking ASSY AL

Taptite, cup S M3x6

Fig. 5-33

5-30

Frame L

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(4) Remove the four cup S M3x6 Taptite screws, and then remove the Main motor ASSY AL.

Taptite, cup S M3x6

Main motor ASSY AL

Taptite, cup S M3x6

Gear plate calking ASSY AL

Taptite, cup S M3x6

Fig. 5-34

(5) Remove the Develop joint from the Gear plate calking ASSY AL.

Develop joint

Gear plate calking ASSY AL

Fig. 5-35

5-31

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.14 Main Shield Plate ASSY

(1) Remove the Insulation sheet.

Insulation sheet

Frame L

Fig. 5-36

(2) Remove the bind B M4x12 Taptite screw.

(3) Remove the bind B M4x12 Taptite screw, and then remove the Plate.

Taptite, bind B M4x12

Plate

Pin

Frame L

Pin

Taptite, bind B M4x12

Fig. 5-37

Assembling Note:

- When assembling the Plate, ensure to put the Plate into the base plate LV.

- When assembling the Plate, secure the screw at the Frame L side first, then the screw at the base plate LV side.

5-32

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(4) Remove the three bind B M4x12 Taptite screws and cup S M3x6 Taptite screw, and then remove the Main shield plate ASSY.

Taptite, bind B M4x12

Taptite, bind B M4x12

Taptite, cup S M3x6

Frame L

Main shield plate ASSY

Fig. 5-38

Assembling Note:

When assembling the Main shield plate ASSY, be careful not to bend the Ground wire AL of the Frame L.

Joint cover

Inner chute AL

Ground wire AL

Main shield plate ASSY

Fig. 5-39

5-33

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.15 Relay Rear PCB ASSY/Connector

(1) Remove the Relay rear PCB ASSY.

Relay rear PCB ASSY

DX sensor

(For HL-5250DN/5270DN/5280DW)

Hook

Frame L

Fig. 5-40

(2) Remove the Connector harness.

(3) Disconnect the LT connector while pressing the Hook inwards.

Connector harness

LT connector

Hook

Frame L

Hook

Fig. 5-41

5-34

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

Assembling Note:

When assembling the LT connector, ensure that its direction is correct referring to the figure below.

Frame L

Boss

Fig. 5-42

LT connector

5-35

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.16 Relay Front PCB ASSY

(1) Remove the Relay front PCB ASSY.

(2) Disconnect the five connectors from the Relay front PCB ASSY.

Relay front PCB ASSY

Pin

Hook

Frame L

Hook

Pin

Fig. 5-43

Inter lock SW connector

MP solenoid connector

Toner sensor PCB connector

Register solenoid connector

T1 solenoid connector

Relay front PCB ASSY

Fig. 5-44

5-36

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7.17 MP Solenoid ASSY

(1) Remove the cup B M3x8 Taptite screw, and then remove the Spring.

Frame L

Taptite, cup B M3x8

Spring

Fig. 5-45

Assembling Note:

When assembling the Spring, ensure that its direction is correct referring to the figure below.

Spring

Frame L

Fig. 5-46

5-37

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(2) Remove the bind B M3x10 Taptite screw.

(3) Remove the MP solenoid ASSY, Solenoid release spring P/R and MP solenoid lever.

Taptite, bind B M3x10

Solenoid release spring P/R

MP solenoid lever

MP solenoid ASSY

Frame L

Fig. 5-47

7.18 Drive Release Link

(1) Lift up the back end of the Drive release cam slightly and remove the Drive release cam from the Frame L.

(2) Turn the Drive release link to the direction of the arrow 2 until the groove of the Drive release link is aligned with the guide of the boss as shown in the figure below.

(3) Remove the Drive release cam.

Drive release cam

Drive release link

3

1

Frame L

Guide

2

Fig. 5-48

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7.19 T1 Solenoid ASSY

(1) Remove the bind B M3x10 Taptite screw.

(2) Remove the T1 solenoid ASSY and the Solenoid release spring.

Taptite, bind B M3x10

Solenoid release spring

T1 solenoid ASSY

T1 solenoid lever

Frame L

Fig. 5-49

7.20 Toner Sensor PCB

(1) Remove the Toner sensor PCB unit ASSY from the Frame L.

Toner sensor PCB unit ASSY

Frame L

Fig. 5-50

(2) Remove the PT sensor holder from the Toner sensor PCB ASSY AL.

PT sensor holder

Hooks

Toner sensor PCB ASSY AL

Fig. 5-51

5-39

Hooks

Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.21 Register Solenoid ASSY

(1) Remove the bind B M3x10 Taptite screw.

(2) Remove the Register solenoid ASSY and the Solenoid release spring.

Taptite, bind B M3x10

Solenoid release spring

Register solenoid ASSY

Register solenoid lever

Fig. 5-52

7.22 Ejector Solenoid ASSY (For HL-5250DN/5070DN/5280DW)

Frame L

(1) Remove the bind B M3x10 Taptite screw.

(2) Remove the Ejector solenoid and the Solenoid release spring.

Taptite, bind B M3x10

Solenoid release spring

Frame L

Ejector solenoid

Fig. 5-53

5-40

Ejector solenoid lever

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7.23 Interlock SW ASSY

(1) Remove the Interlock SW ASSY from the Frame L.

Interlock SW ASSY

Frame L

Hooks

Fig. 5-54

7.24 New Toner Actuator

(1) Remove the New toner actuator and the New toner actuator spring.

New toner actuator

Hook

New toner actuator spring

Frame L

Fig. 5-55

Assembling Note:

When assembling the New toner actuator spring, ensure that its direction is correct referring to the figure below.

New toner actuator spring

Hook

Hook

New toner actuator

Fig. 5-56

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(1) Remove the Gear 23.

Frame L

Hook

Gear 23

(2) Remove the Gear 20.

Hook

Gear 20

Frame L

Fig. 5-57

Fig. 5-58

5-42

Confidential

(3) Remove the Gear 17 (black).

Hook

Gear 17 (black)

Frame L

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(4) Remove the Gear 17 (white).

Hook

Gear 17 (white)

Frame L

Fig. 5-59

Fig. 5-60

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.26 Side Cover R

(1) Remove the two bind B M4x12 Taptite screws, and then remove the Side cover R by following the direction from 1a to 1d.

Taptite, bind B M4x12

Hook

Side cover R

1d

Hook

Hooks

1a

Taptite, bind B M4x12

Hooks

1c 1b

Fig. 5-61

Hooks

5-44

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7.27-1 Top Cover Printed ASSY (For HL-5240/5250DN)

(1) Remove the two bind B M4x12 Taptite screws from the Top cover printed ASSY.

(2) Release all Hooks of the Top cover printed ASSY and lift up the front side of the Top cover printed ASSY.

(3) Remove the Top cover printed ASSY.

Hooks

Top cover printed ASSY

Hooks

Hook

Hook

3

2

Hook

<Front side>

Hook

Taptite, bind B M4x12

Fig. 5-62

7.27-2 Panel PCB ASSY

(1) Turn the Top cover printed ASSY upside down. three

cup B M3x8 Taptite screws, and then remove the Panel PCB ASSY.

Taptite, cup B M3x8

Panel PCB ASSY

Top cover printed ASSY

Fig. 5-63

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.27-3 SW Key A/B

(1) Remove the SW key A from the Top cover printed ASSY.

SW key A

Top cover printed ASSY

Fig. 5-64

(2) Remove the SW key B from the Top cover printed ASSY.

SW key B

Top cover printed ASSY

Fig. 5-65

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7.27-4 Inner Chute/Pinch Roller Holder

six

bind B M4x12 Taptite screws, and then remove the Inner chute.

(2) Release all Hooks of the Inner chute and lift up the front side of the Inner chute.

(3) Pull out the Inner chute to the front side.

Taptite, bind B M4x12

a b c

Inner chute

d

Taptite, bind B M4x12

f

Hooks

e

Taptite, bind B M4x12

Top cover printed ASSY

Hooks

Fig. 5-66

Assembling Note:

When assembling the Inner chute, secure the screws according to the order of alphabet described in the figure above.

(4) Turn the Inner chute upside down.

(5) Remove the Pinch roller holder from the Inner chute.

Pinch roller holder

Inner chute

Pinch roller holder

Fig. 5-67

Assembling Note:

When assembling the Pinch roller holder, be sure that its direction is correct as shown in the figure above.

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.28-1 Top Cover 2 Printed ASSY/Panel Plate Printed ASSY (For HL-5270DN/5280DW)

two

bind B M4x12 Taptite screws from the Top cover 2 printed ASSY.

(2) Release all Hooks of the Top cover 2 printed ASSY and lift up the front side of the Top cover 2 printed ASSY.

(3) Remove the Top cover 2 printed ASSY.

Hooks

Top cover 2 printed ASSY

Hooks

Hook

Hook

3

2

Hook

<Front side>

Hook

Fig. 5-68

Taptite, bind B M4x12

(4) Remove the Panel Plate Printed ASSY from the Top cover 2 printed ASSY.

Panel Plate Printed ASSY

Hook

Top cover 2 printed ASSY

Fig. 5-69

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7.28-2 Inner Chute/Pinch Roller Holder

(1) Remove the seven bind B M4x12 Taptite screws, and then remove the Inner chute.

(2) Release all Hooks of the Inner chute and lift up the front side of the Inner chute.

(3) Pull out the Inner chute to the front side.

Taptite, bind B M4x12

a b c

Inner chute

g d

Taptite, bind B M4x12

f

Hooks

e

Taptite, bind B M4x12

Top cover 2 printed ASSY

Hooks

Fig. 5-69

Assembling Note:

When assembling the Inner chute, secure the screws according to the order of alphabet described in the figure above.

(4) Turn the Inner chute upside down.

(5) Remove the Pinch roller holder from the Inner chute.

Pinch roller holder

Inner chute

Pinch roller holder

Fig. 5-70

Assembling Note:

When assembling the Pinch roller holder, be sure that its direction is correct as shown in the figure above.

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.28-3 Panel PCB ASSY

(1) Disconnect the LCD panel PCB harness and Back light PCB harness from the LCD panel

PCB ASSY.

NOTE:

- After disconnecting the flat cable(s), check that each cable is not damaged at its end or short-circuited.

- When connecting the flat cable(s), do not insert it at an angle. After insertion, check that the cable is not at an angle.

LCD panel PCB harness (Flat cable)

Back light PCB harness

LCD panel PCB ASSY

Top cover 2 printed ASSY

Fig. 5-72

(2) Remove the three cup B M3x8 Taptite screws, and then remove the LCD panel PCB

ASSY.

c

Taptite, cup B M3x8

b

LCD panel PCB ASSY

a

Top cover 2 printed ASSY

Fig. 5-73

Assembling Note:

When assembling the LCD panel PCB ASSY, secure the screws according to the order of alphabet described in the figure above.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7.28-4 SW Key A/B/C /Set Key Printed ASSY

(1) Remove the SW key A from the Top cover 2 printed ASSY.

SW key A

Top cover 2 printed ASSY

Fig. 5-73

(2) Remove the SW key B from the Top cover 2 printed ASSY.

SW key B

Top cover 2 printed ASSY

Fig. 5-74

(3) Remove the SW key C from the Top cover 2 printed ASSY.

SW key C

Top cover 2 printed ASSY

Fig. 5-75

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(4) Remove the Set key film.

Set key film

Set key printed ASSY

Top cover 2 printed ASSY

Fig. 5-76

(5) Remove the Set key printed ASSY from the Top cover 2 printed ASSY.

Set key printed ASSY

Top cover 2 printed ASSY

Fig. 5-77

(6) Remove the Key top from the Set key printed ASSY.

Key top

Fig. 5-78

5-52

Set key printed ASSY

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7.28-5 LCD Holder ASSY

(1) Remove the LCD holder from the Top cover 2 printed ASSY.

LCD holder

Top cover 2 printed ASSY

Fig. 5-79

(2) Remove the Back light PCB ASSY from the LCD holder.

Back light PCB ASSY

LCD holder

Fig. 5-80

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(3) Remove the LCD from the LCD holder.

LCD

Fig. 5-82

(4) Remove the Back light film from the LCD holder.

Back light film

LCD holder

LCD holder

Fig. 5-83

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7.29 Filter

(1) Slide the Sub duct to the direction of 1b while pressing the three Hooks and remove the

Sub duct from the Air duct.

Air duct

Filter

1b

1a

Hook

Hooks

Fig. 5-83

Sub duct

<Back side>

(2) Remove the Filter from the Air duct.

NOTE:

The filter is dirt. Be careful when disassembling or assembling it.

Air duct

Filter

Fig. 5-84

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(1) Remove the Hooks of the Air duct from the frame. Slide the Air duct to the direction of 1b and remove the Air duct.

Hook

Laser unit

1a

Hook

1b

Hook

Air duct

Hook

Fig. 5-85

Hook

(2) Remove the five cup S M3x6 Taptite screws

(3) Remove the Protective film.

(4) Pull out the flat cable from the Core.

(5) Remove the Laser unit.

NOTE:

- Be careful not to lose the Protective film attached on the flat cable.

- Do not touch the Laser scanner window directly.

Laser unit

Taptite, cup S M3x6

Core

Protective film

Taptite, cup S M3x6

Fig. 5-86

Assembling Note:

Before assembling the Laser unit, make sure put on the Core.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7.31 PS PCB Unit

(1) Turn the Printer upside down.

(2) Remove the five bind B M4x12 Taptite screws, and then remove the Base plate LV.

(3) Remove the Screw pan (S/P washer) M3.5x6 from the Base plate LV to remove the PS

PCB unit terminal.

Taptite bind B M4x12

Taptite bind B M4x12

Base plate LV

PS PCB unit terminal

Screw pan (S/P washer)

M3.5x6

<Back side>

Fig. 5-87

(4) Remove the two bind B M4x12 Taptite screws, and then remove the LV insulation sheet.

LV insulation sheet

Taptite, bind B M4x12

Fig. 5-88

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(5) Remove the bind B M4x12 Taptite screw, and then remove the SW holder ASSY.

(6) Float the Fan motor 60 unit LV from the Frame R.

NOTE:

Do not remove the Fan motor 60 unit LV at the above step.

Frame R

<Right side>

6

5

SW holder ASSY

Fan motor 60 unit LV

Taptite, bind B M4x12

Fig. 5-89

(7) Remove the Inlet harness ASSY from the SW holder.

(8) Press the Hooks on both sides of the Power supply switch, pull out the Power supply switch to the direction of 8a and pull the wire out of the groove on the SW holder.

Inlet harness ASSY

SW holder

7

8b

8a

Hook

Power supply switch

Hook

Fig. 5-90

Assembling Note:

When assembling the power supply switch onto the SW holder, give attention to the direction of the switch.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(9) Remove the harness of the fuser unit and power supply harness.

(10) Put each harness through the space where the fan 60 unit is assembled and remove the

PS PCB unit.

(11) Remove the harness from the PS PCB unit.

PS PCB unit

11

10

Fig. 5-91

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.32 High-Voltage PS PCB ASSY

(1) Remove the four bind B M4x12 Taptite screws, and then remove the Base plate HV.

Taptite, bind B M4x12

Base plate HV

Taptite, bind B M4x12

<Front side>

Pin

Pin

Fig. 5-92

(2) Remove the bind B M4x12 Taptite screw, and then remove the HV insulation sheet.

Taptite, bind B M4x12

HV insulation sheet

Pin

Pin

Fig. 5-93

5-60

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(3) Remove the bind B M4x12 Taptite screw, and then remove the High-voltage PS PCB

ASSY.

(4) Disconnect the three connectors from the High-voltage PS PCB ASSY.

High-voltage PS PCB ASSY

Taptite, bind B M4x12

Pins

Fig. 5-94

High-voltage PS PCB ASSY

MP PE sensor connector

PE EG sensor connector

Toner LED PCB connector

Fig. 5-95

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.33 Toner LED PCB Unit ASSY

(1) Release the two Hooks to remove the Toner LED PCB unit ASSY from the Frame R.

(2) Disconnect the two connectors from the Toner LED PCB.

Frame R

Hook

Pins

Toner LED PCB unit ASSY

<Right side>

Hook

Fan motor 60 unit LV connector

Fan motor 60 unit connector

Toner LED PCB

Fig. 5-96

(3) Release the two Hooks to remove the LED holder from the Toner LED PCB.

Hook

LED holder

Hook

Fig. 5-97

Toner LED PCB

5-62

Confidential

7.34 Fan Motor 60 Unit

(1) Remove the Fan motor 60 unit from the Frame R.

Frame R

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

<Right side>

Fan motor 60 unit

Fig. 5-98

7.35 Fan Motor 60 Unit LV

(1) Remove the Fan motor 60 unit LV from the Frame R.

Frame R

Fan motor 60 unit LV

Fig. 5-99

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(1) Remove the six bind B M4x12 Taptite screws from the Frame L.

(2) Remove the Frame L.

Taptite, bind B M4x12

Taptite, bind B M4x12

Taptite, bind B M4x12

Under bar

Frame L

Taptite, bind B M4x12

Under bar

Fig. 5-100

(1) Remove the five bind B 4x12 Taptite screws from the Frame R.

(2) Remove the Frame R.

Frame R

Taptite, bind B M4x12

<Right side>

Fig. 5-101

5-64

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(1) Cut the Binder bundling the harnesses with nippers.

Binder

Cut

PE EG sensor connector

Paper feed frame

MP PE sensor connector

Fig. 5-102

(2) Remove the two bind B M3x8 Taptite screws.

(3) Lift up the back side of the MP feed frame and pull up the MP feed frame to remove.

Taptite, bind B M3x8

MP feed frame

Taptite, bind B M3x8

Hook

3b

3a

Hook

Fig. 5-103

Paper feed frame

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Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(4) Open the MP feed frame cover.

MP feed frame cover

MP feed frame

Fig. 5-104

(5) Release the Hook to remove the Holder bearing MP from the MP feed frame.

Holder bearing MP

Hook

5c

5a

5b

MP feed frame

Fig. 5-105

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(6) Slide the MP roller holder ASSY to the direction of 6a and pull it up to remove.

Lift arm MP

MP feed frame

6a

6b

Hook

MP roller holder ASSY

Fig. 5-106

(7) Turn the MP feed frame upside down.

(8) Slide the PE actuator MP B to the direction of 8b while pressing the Hook to the direction of 8a, and pull it up to remove.

PE actuator MP B

8c

8b

Hook

8a

PE actuator MP

MP feed frame

Fig. 5-107

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(9) Turn the PE actuator MP to the direction of 9a and pull it up to remove.

PE actuator MP

9b

9a

MP feed frame

Fig. 5-108

(10) Remove the bind B M3x8 Taptite screw, and then remove the MP PE sensor ASSY.

Taptite, bind B M3x8

MP PE sensor ASSY

MP feed frame

Fig. 5-109

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(11) Lift up the back of the Separation pad ASSY MP to the direction of 11a and pull up the

Separation pad ASSY MP to remove.

Separation pad ASSY MP

MP frame

11b

11a

Fig. 5-110

(12) Remove the MP separation spring from the MP frame.

MP separation spring

MP frame

Fig. 5-111

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Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

Assembling Note:

When assembling the MP separation spring, ensure that its direction is correct referring to the figure below.

MP separation spring

Bosses

Fig. 5-112

7.39 Regist Actuator Rear/Regist Actuator Spring

(1) Turn the Paper feed unit upside down.

(2) Release the Hook A of the Actuator cover to pull up the Actuator cover to remove.

Actuator cover

Hook A

Paper feed unit

Hook B

Fig. 5-113

5-70

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(3) Slide the Regist actuator rear to the direction of 3b while pressing the Hook to the direction of 3a and pull up the Regist actuator rear to remove. Then, remove the Regist actuator spring from the Regist actuator rear.

Regist actuator rear

Regist actuator spring

3d

Paper feed unit

3c

3b

3a

Hook

Fig. 5-114

Assembling Note:

When assembling the Regist actuator spring, ensure that its direction is correct referring to the figure below.

Hook

Regist actuator rear

Fig. 5-115

Hook

Regist actuator spring

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Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.40 Regist Actuator Front/Regist Actuator Spring

(1) Slide the Regist actuator front to the direction of 1b while pressing the Hook to the direction of 1a and pull up the Regist actuator front to remove. Then, remove the Regist actuator spring from the Regist actuator front.

Regist actuator front

1d

Regist actuator spring

Hook

Paper feed unit

1c

1b

1a

Fig. 5-116

Assembling Note:

When assembling the Regist actuator spring, ensure that its direction is correct referring to the figure below.

Hook

Regist actuator spring

Regist actuator front

Hook

Fig. 5-117

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7.41 Roller Holder ASSY

(1) Push the Lift arm to the direction of 1a and pull out the pin of the Roller holder ASSY.

Then, turn the Roller holder ASSY to the direction of 1b.

Lift arm

Pin

Roller holder ASSY

1b

Paper feed frame

1a

Fig. 5-118

(2) Slide the Roller holder ASSY to the direction of 2a. Then, lift up the gear side of the

Roller holder ASSY to the direction of 2b and pull it out to the direction of 2c to remove.

Roller holder ASSY

Paper feed frame

2c

2b

“A”

2a

Fig. 5-119

Assembling Note:

When assembling the roller holder ASSY, align the section “A” on the shaft of the roller holder

ASSY with the hole on the paper feed frame.

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.42 PE Actuator/Edge Actuator/Edge Actuator Spring

(1) Remove the Edge actuator spring.

Edge actuator spring

Paper feed frame

Edge actuator

Hooks

Fig. 5-120

(2) Release the hook and remove the Separation R shaft bearing.

Separation R shaft bearing

Hook

Paper feed frame

Fig. 5-121

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(3) Pull out the Separation roller drive shaft to the direction of the arrow and remove the Edge actuator and PE actuator.

Edge actuator

PE actuator

Separation roller drive shaft

Paper feed frame

Fig. 5-122

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Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

7.43 PE EG Sensor ASSY

(1) Remove the two bind B M3x8 Taptite screws, and then remove the MP frame.

Taptite bind B M3x8

MP frame

Taptite bind B M3x8

Paper feed frame

Fig. 5-123

(2) Remove the bind B M3x8 Taptite screw, and then remove the PE EG sensor ASSY.

Taptite bind B M3x8

PE EG sensor ASSY

Paper feed frame

Fig. 5-124

5-76

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7.44 Wireless PCB (PCB T60H929.00 ASSY 02) (For HL-5280DW)

(1) Disconnect the connector from the Wireless PCB harness.

(2) Remove the Wireless PCB (PCB T60H929.00 ASSY 02) and Wireless PCB holder from the Frame R.

Hook

Frame R

Wireless PCB harness

Wireless PCB

(PCB T60H929.00 ASSY 02)

Wireless PCB holder

Fig. 5-125

(3) Remove the Wireless PCB (PCB T60H929.00 ASSY 02) from the Wireless PCB holder.

Wireless PCB holder

Wireless PCB

(PCB T60H929.00 ASSY 02)

Hook

Fig. 5-126

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

8. DISASSEMBLY PROCEDURE (LT-5300)

(1) Pull out the Paper tray from the LT-5300.

Paper tray

Fig. 5-127

(2) Pull up the back side of the Separation pad ASSY.

(3) Push the Hooks provided on both sides of the Separation pad ASSY inwards.

(4) Pull up the Separation pad ASSY.

Hooks

Separation pad ASSY

3

Hook

Hook

3

4

2

Fig. 5-128

5-78

Paper tray

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(5) Remove the Separation pad spring.

Separation pad spring

(6) Remove the Lift gear 46.

Fig. 5-129

Plate up plate

Paper tray

Plate up plate

Lift gear 46

Hook

Lift gear 46

Hook

Fig. 5-130

Paper tray

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Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(7) Remove the Gear 21-16.

Gear 21-16

(8) Remove the Gear 15.

Fig. 5-131

Paper tray

Gear 15

Fig. 5-132

Paper tray

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Confidential

8.2 LT Front Cover ASSY

(1) Remove the two bind B M4x12 Taptite screws.

(2) Remove the LT front cover ASSY.

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

LT front cover ASSY

Fig. 5-133

Taptite, bind B M4x12

(3) Remove the LT front paper guide from the LT front cover ASSY while pulling the two hooks inwards.

LT front paper guide

Fig. 5-134

Hooks

LT front cover ASSY

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Confidential

CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

8.3 LT Rear Cover

(1) Remove the two cup S M3x6 Taptite SR screws.

(2) Remove the LT rear cover.

Taptite, cup S M3x6 SR LT rear cover

<Back side>

Fig. 5-135

8.4 LT Side Cover L

(1) Remove the bind B M4x12 Taptite screw.

(2) Remove the cup S M3x6 Taptite SR screw.

(3) Release the Hooks in the order of the arrows and remove the LT side cover L.

Taptite, cup S M3x6 SR

3c

Boss

3d

<Left side>

LT side cover L

Hooks

3e

Hooks

Fig. 5-136

3a

3b

5-82

Taptite, bind B M4x12

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

8.5 LT Side Cover R

(1) Remove the bind B M4x12 Taptite screw.

(2) Remove the cup S M3x6 Taptite SR screw.

(3) Release the Hooks in the order of the arrows and remove the LT side cover R.

Taptite, cup S M3x6 SR

3c

Boss

LT side cover R

<Right side>

3d

Hooks

3a

3e

3b

Taptite, bind B M4x12

Fig. 5-137

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

8.6 LT PCB ASSY

(1) Disconnect the connectors from the LT PCB ASSY.

(2) Remove the bind B M4x12 Taptite screw, and then remove the LT PCB ASSY.

Hook

LT PCB ASSY

LT PCB ASSY

LT frame L

Taptite, bind B M4x12

<Left side>

LT sensor harness

ASSY 1 connector

LT sensor PCB connector

LT sensor harness

ASSY 2 connector

Fig. 5-138

LT solenoid connector

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(1) Remove the LT sensor harness ASSY 1 from the Connector: 55533-1219.

(2) Disconnect the Connector: 55533-1219 while pressing the Hooks inwards.

Connector: 55533-1219

Hook

Hook

LT sensor harness ASSY 1

LT frame L

Fig. 5-139

(1) Remove the LT sensor harness ASSY 2 from the Connector: 54702-1219.

(2) Disconnect the Connector: 54702-1219 while pressing the Hooks inwards.

LT sensor harness ASSY 2

Hook

Connector: 54702-1219

LT frame L

Hook

Fig. 5-140

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

8.9 Gear 24 LT

(1) Place the LT so that the LT frame L is at the top.

(2) Release the Hook to remove the Gear 20 T1 roller drive from the LT frame L.

LT frame L

Hook

<Left side>

Gear 20 T1 roller drive

Fig. 5-141

(3) Remove the Retaining ring E4.

(4) Remove the Gear 24 LT from the LT frame L.

Retaining ring E4 LT frame L

Gear 24 LT

Fig. 5-142

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(1) Remove the Gear plate ground spring from the LT frame L.

LT frame L

Gear plate ground spring

Fig. 5-143

(2) Remove the cup S M3x6 Taptite SR screw, and then remove the Feed roller ground plate.

Taptite, cup S M3x6 SR

LT frame L

Feed roller ground plate

Fig. 5-144

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(3) Remove the T1 sector gear spring LT from the LT frame L.

T1 sector gear spring LT

LT frame L

Fig. 5-145

Assembling Note:

When assembling the T1 sector gear spring LT, ensure that its direction is correct referring to the figure below.

T1 sector gear spring LT

T1 sector gear

LT frame L

Hook

Fig. 5-146

LT drive unit

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(4) Remove the LT solenoid harness from the hooks of the LT drive unit.

LT drive unit

Hooks Hooks

LT solenoid harness

LT solenoid ASSY

Fig. 5-147

(5) Remove the cup S M3x6 Taptite screw.

(6) Remove the four bind B M4x12 Taptite screws, and then remove the LT drive unit.

Taptite, bind B M4x12

Taptite, bind B M4x12

LT drive unit

Taptite, cup S M3x6

Ground wire top

Fig. 5-148

5-89

LT frame L

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(7) Remove the Clutch spring from the LT drive unit.

Clutch spring

LT drive unit

Fig. 5-149

(8) Remove the Collar 6.

(9) Remove the Clutch arm ASSY from the LT drive unit.

Collar 6

Clutch arm ASSY

LT drive unit

Fig. 5-150

(10) Remove the Collar 6 from the Clutch arm ASSY.

Clutch arm ASSY

Collar 6

Fig. 5-151

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

8.11 LT Solenoid ASSY

(1) Remove the bind B M3x10 Taptite screw, and then remove the LT solenoid ASSY.

(2) Remove the Solenoid release spring P/R from the LT solenoid ASSY.

Solenoid release spring P/R

LT frame L

Taptite, bind B M3x10

LT solenoid ASSY

Fig. 5-152

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

8.12 Roller Holder ASSY

(1) Push the Lift arm to the direction of the arrow 1a and pull out the pin of the Roller holder

ASSY. Then, turn the Roller holder ASSY to the direction of the arrow 1b.

Pin

Lift arm

Roller holder ASSY

1b

LT paper feed frame

1a

Fig. 5-153

(2) Slide the Roller holder ASSY to the direction of the arrow 2a. Then, lift up the gear side of the Roller holder ASSY to the direction of the arrow 2b and pull it out to the direction of the arrow 2c to remove.

Roller holder ASSY

2c

2b

“A”

Paper feed frame

2a

Fig. 5-154

Assembling Note:

When assembling the roller holder ASSY, align the section “A” on the shaft of the roller holder ASSY with the hole on the paper feed frame.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

8.13 Edge Actuator Spring

(1) Remove the Edge actuator spring.

Edge actuator spring

LT paper feed frame

Edge actuator

Hooks

Fig. 5-155

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

8.14 PE Actuator , Edge Actuator

(1) Release the Hook and remove the Separation R shaft bearing.

Separation R shaft bearing

Hook

LT paper feed frame

Fig. 5-156

(2) Pull out the Separation roller drive shaft to the direction of the arrow and remove the Edge actuator and PE actuator.

Edge actuator

PE actuator

Separation roller drive shaft

LT paper feed frame

Fig. 5-157

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

8.15 LT Sensor PCB ASSY

(1) Remove the two bind B M4x12 Taptite screws.

(2) Remove the four cup S M3x6 Taptite SR screws, and then remove the LT frame L.

Taptite, cup S M3x6 SR

Taptite, bind B M4x12

Under bar

Taptite, cup S M3x6 SR

Taptite, bind B M4x12

LT frame L

Under bar

Fig. 5-158

(3) Remove the two cup S M3x6 Taptite SR screws, and then remove the LT paper feed frame.

LT paper feed frame

LT frame R

Fig. 5-159

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Taptite, cup S M3x6 SR

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CHAPTER 5 DISASSEMBLY AND RE-ASSEMBLY

(4) Remove the two cup B M3x12 Taptite screws, and then remove the LT front beam.

Taptite, cup B M3x12

LT front beam

LT paper feed frame

Fig. 5-160

(5) Remove the bind B M3x8 Taptite screw, and then remove the LT sensor PCB ASSY.

Taptite, bind B M3x8

LT sensor PCB ASSY

LT paper feed frame

Fig. 5-161

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS,

REQUIRED AFTER PARTS REPLACEMENT

1. IF YOU REPLACE THE MAIN PCB

The table below shows the ROM type of each main PCB.

Model

HL-5240

Main PCB (For a supplied part)

ROM 0 ROM 1

8 Mbyte Flash ROM x 1 N/A

HL-5250DN 8 Mbyte Flash ROM x 1 2 Mbyte Flash ROM x 1

HL-5270DN 8 Mbyte Flash ROM x 1

HL-5280DW 8 Mbyte Flash ROM x 1

4 Mbyte Flash ROM x 1

4 Mbyte Flash ROM x 1

<What to do when replacing the main PCB>

Rewriting the firmware (ROM) of the printer

Setting the default paper size.

Setting the serial number.

<Which part to use for the operation>

HL-5240 MAIN PCB ASSY 5240

FW: MAIN CONTROLLER AL

HL-5240L MAIN PCB ASSY 5240L

FW: MAIN CONTROLLER 5240L

HL-5250DN MAIN PCB ASSY 5250

FW: MAIN CONTROLLER AL

FW: BRNET AL

HL-5270DN MAIN PCB ASSY 5270

FW: MAIN CONTROLLER AL

FW: BRNET AL

HL-5280DW MAIN PCB ASSY 5280DW US

MAIN PCB ASSY 5280DW EU

FW: MAIN CONTROLLER AL

FW: BRNET ALW

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CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS,

REQUIRED AFTER PARTS REPLACEMENT

<What you should prepare>

(Windows

®

XP/2000 or later)

Create the “hl5200” folder in the C drive, for example.

2) HL-5240/5250DN/5270DN/5280DW target printer

3) USB cable (one piece)

Copy the installed program into the “hl5200” folder that has been created in the C drive.

5) Target firmware: LZXXXX_$.BLF (firmware of the printer)

LZXXXX_$.BLF LZXXXX: First six digits of the part number of the firmware

$: Alphabet representing the revision of the firmware.

Extract it and copy the extracted files into the “hl5200” folder that has been created in the

C drive.

6) Setting file of the default paper size:

Extract this file to set the default paper size.

S5200E (A4 size), s5200U (Letter size), s5200I (A4 size, Israeli font setting for Israel),

AL_CHN.pjl (A4 size, Thin paper setting for China)

7) BR_DEVELOP.zip file

Copy it into the “hl5200” folder that has been created in the C drive. Extract the copied file.

Copy it into the “hl5200” folder that has been created in the C drive. Extract the copied file and run the bramainte.exe file by double-clicking.

Refer to the following steps for installing the printer driver.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

Installing the printer driver

To identify terminals connected via USB interface, the PC requires the corresponding virtual USB devices to be implemented by driver. If you connect any number of printers to your PC, therefore, the same number of virtual USB devices will be automatically configured on your PC. To prevent virtual USB devices from being configured limitlessly, use the unique driver installation procedure described below that enables your PC to identify terminals via single virtual USB device.

NOTE:

Once this installation procedure is carried out for the PC, no more driver installation will be required for that PC to identify machines.

1. Unplug the USB cable, if the printer is connected to the PC.

2. (HL-5240/5250DN)

Turn the power supply of the printer on while holding down the

Go

button and the

Job

Cancel

button. Make sure that all LEDs are on. The

Status

LED lights up when releasing the

Go

button and the

Job Cancel

button.* Press the

Go

button for five times (ROM 0). A few seconds later, the printer goes into the ROM rewriting mode.

* The printer goes back to the normal mode automatically when the printer remains no operation while the

Status

LED is lighting.

(HL-5270DN/5280DW)

Turn the power supply of the printer on while holding down the

Set

key and the

Back

key. Select the appropriate mode by pressing the ◄ ► keys.

Make sure that “

PRL->ROM0 W

” on the LCD panel and press the

Set

key to be set. “

Send BLF file..

” message appears on the LCD panel. A few seconds later, the printer goes into the ROM rewriting mode.

3. Connect the USB cable with the printer. The following screen appears, indicating the detection of new hardware device by the system.

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CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS,

REQUIRED AFTER PARTS REPLACEMENT

4. Select “Search for a suitable driver for my device (recommended)” and click

Next

.

5. Select “Specify a location” and click

Next

.

6. Select the “BR_DEVELOP” folder in the C drive, then click

OK

.

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7. Click .

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

8. To proceed, click

Yes

.

9. If the driver is successfully installed, the following message window appears. Click

Finish

to return Windows.

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CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS,

REQUIRED AFTER PARTS REPLACEMENT

<Procedures>

After the installation procedure of the printer driver is completed, refer to the following steps for the detailed procedures to rewrite the firmware.

Rewriting the firmware (ROM) of the printer

(HL-5240/5250DN)

1) Connect the PC and printer with the USB cable.

2) Turn the power supply of the printer on while holding down the

Go

button and the

Job

Cancel

button. Make sure that all LEDs are on. The

Status

LED lights up when releasing the

Go

button and the

Job Cancel

button.* Press the

Go

button for five times

(ROM 0) or six times (ROM 1). A few seconds later, the printer goes into the ROM rewriting mode.

* The printer goes back to the normal mode automatically when the printer remains no operation while the

Status

LED is lighting.

3) Start the PC.

4) Open the “hl5200” folder and double-click the FILEDG32 icon to start. Make sure that there is the “

kensa

” icon, and that no error occurs.

Fig. 6-1

5) Click the “

kensa

” icon in FILEDG32 to select.

6) Drag the firmware (LZ………) in the same folder and drop it onto the icon of the applicable model in FILEDG32.

The files in the firmware are sent to the printer so that they are started to write into the flash ROM automatically. After finishing receiving the files, the printer starts to rewrite the firmware.

7) The LED blinks irregularly while the firmware being written. Then, be sure not to disconnect the USB cable or to turn off the power supply of the PC before all LEDs are

ON to indicate that this firmware rewriting is done.

8) Turn the power supply of the printer off.

NOTE:

If the error related to the BLF file or the printer occurs, the red Status LED lights up.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

(HL-5270DN/5280DW)

1) Connect the PC and printer with the USB cable.

2) Turn the power supply of the printer on while holding down the

Set

key and the

Back

key.

Select the appropriate mode by pressing the ◄ ► keys.

PRL->ROM0 W

” (For rewriting the ROM 0)

PRL->ROM1 W

” (For rewriting the ROM 1)

Press the

Set

key to be set. Make sure that “

Send BLF file..

” message appears on the

LCD panel.

3) Start the PC.

4) Open the “hl5200” folder and double-click the FILEDG32 icon to start. Make sure that there is the “

kensa

” icon, and that no error occurs.

Fig. 6-2

the

kensa

” icon in FILEDG32 to select.

6) Drag the firmware (LZ………) in the same folder and drop it onto the icon of the applicable model in FILEDG32.

The files in the firmware are sent to the printer so that they are started to write into the flash ROM automatically. After finishing receiving the files, the printer starts to rewrite the firmware.

7) The address messages appear on the LCD panel while the firmware being written. Then, be sure not to disconnect the USB cable or to turn off the power supply of the PC before all

LEDs are ON to indicate that this firmware rewriting is done. The

“ ….Complete….

” message appears on the LCD panel when the firmware rewriting is done properly.

8) Turn the power supply of the printer off.

NOTE:

If the error related to the BLF file or the printer occurs, the red backlight of the LCD panel lights up and the error message appears.

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CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS,

REQUIRED AFTER PARTS REPLACEMENT

Setting the default paper size

1) Open the “hl5200” folder and double-click the FILEDG32 icon to start. Select the applicable printer and click it. (Make sure that there is the icon of the connected printer and that no error occurs.)

2) Drag “s5200E” (A4 size), “s5200U” (Letter size), “s5200I” (A4 size, Israeli font for Israel) or “AL_CHN.pjl” (A4 size, Thin paper for China) in the same folder and drop it onto the icon of the applicable model in FILEDG32. When the

Status

LED (HL-5240/ 5250DN) or the

Data

LED (HL-5270DN/5280DW) of the printer lights up for an instant and goes off immediately after dropping it, the setting is completed. Then, set the serial number following the steps described in the next section.

Refer to the following step to set the serial number.

Setting the serial number

Operation of printer

(HL-5240/5250DN)

1) Check that the front cover is open.

2) Turn ON the power switch while the

Go

button is held.

3) After all LEDs on the panel are lit, only the

Status

LED goes out. the button and check that all LEDs are out. the button for a while. Make sure that the

Paper

LED lights up.

6) Close the front cover of the printer.

(HL-5270DN/5280DW)

1) Check that the front cover is open.

2) Turn ON the power switch while the

Go

button is held.

3) The message “

USERS MODE

” is shown on the LCD panel. the button. the button for a while. Make sure that the

Data

LED lights up.

6) The message “

PIT3 MODE

” is shown on the LCD panel.

7) Close the front cover of the printer.

Operation of computer

8) Connect the computer to the printer with the USB cable.

9) Double-click the brmainte.EXE file (maintenance utility) which has been copied in the

“hl5200” folder to start.

10) Select “Input Information” from Menu. Select the applicable model name.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

11) Check the port (USB) that the printer is connected through and click “Serial No.” in the lower box.

Fig. 6-3

Enter the serial number (the last nine digits) of the printer into the box at the right hand side. The serial number is shown in the window, and check that it is correct. Follow the next step without clicking the

OK

button.

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CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS,

REQUIRED AFTER PARTS REPLACEMENT

2. IF YOU REPLACE THE PERIODICAL MAINTENANCE PARTS

If any of periodical replacement parts are replaced, it is necessary to change the count of total pages on each periodical maintenance parts to zero, and to modify a number of times for replacing each periodical maintenance parts according to the procedures below.

NOTE:

As for HL-5270DN/5280DW models, it is possible to reset the count of each periodical

maintenance parts by operating the LCD panel. Refer to “2.2 Reset Parts Life Menu” on

Chapter 7 .

<What you should prepare>

(Windows

®

XP/2000 or later)

Create the “hl5200” folder in the C drive, for example.

2) HL-5240/5250DN/5270DN/5280DW target printer

3) MAINTE.EXE

Download the above files from the databank and copy it into the “hl5200” folder that has been created in the C drive. Extract the copied file and run the “brmainte.exe” file by double-clicking.

<Procedures>

Operation of printer

(HL-5240/5250DN)

1) Check that the front cover is open.

2) Turn ON the power switch while the

Go

button is held.

3) After all LEDs on the panel are lit, only the

Status

LED goes out. the button and check that all LEDs are out. the button for a while. Make sure that the

Paper

LED lights up.

6) Close the front cover of the printer.

(HL-5270DN/5280DW)

1) Check that the front cover is open.

2) Turn ON the power switch while the

Go

button is held.

3) The message “

USERS MODE

” is shown on the LCD panel. the button. the button for a while. Make sure that the

Data

LED lights up.

6) The message “

PIT3 MODE

” is shown on the LCD panel.

7) Close the front cover of the printer.

Operation of computer

8) Connect the computer to the printer with the USB cable.

9) Double-click the “brmainte.EXE” (maintenance utility) which has been copied in the

“hl5200” folder to start.

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10) Select “Input Information” from Menu.

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

11) Select the applicable model name. And check the port (USB) that the printer is connected through.

12) Select the item of each periodical maintenance parts and check “ON” and click

OK

.

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CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS,

REQUIRED AFTER PARTS REPLACEMENT

Periodical Maintenance Parts Name

Fuser Unit

Laser Unit

Paper feeding kit for Tray 1

Paper feeding kit for Tray 2

Paper feeding kit for Tray 3

Paper feeding kit for MP tray

Item

Reset Fuser Counter

Reset Laser Counter

Reset PF Kit 1 Counter

Reset PF Kit 2 Counter

Reset PF Kit 3 Counter

Reset PF Kit MP Counter

After resetting any of counts, print the Print Settings to make sure a bar graph indicating the remaining life of each periodical maintenance parts full up.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

CHAPTER 7 SERVICE SUPPORT SOFTWARE

1. CONTROL PANEL

Various modes can be used if the power switch is set to ON while the

Go

button is held.

There are two types of modes: Users Mode and Service Mode.

Operation procedure of Users Mode is shown below. The function change depends on number of times the

Go

button is pressed.

<HL-5240/5250DN>

1. Check that the front cover is closed.

2. Turn ON the power switch while holding down the

Go

button.

3. After all LEDs on the panel are lit, only the

Status

LED goes out. the button and check that all LEDs are off. the button. (If the

Go

button is pressed, the

Status

LED is lighted. If the

Go

button is released, the LED is out.)

<HL-5270DN/5280DW>

1. Check that the front cover is closed.

2. Turn ON the power switch while holding down the

Go

button. message ” is shown on the LCD panel with the orange backlight. the button and check that the

Data

LED is off. the button. (If the

Go

button is pressed, the

Data

LED is lighted. If the

Go

button is released, the LED is out.)

Press the

Go

button

Each mode starts after 2 seconds.

Once

Twice

Three times

Four times

Five times

(1) Test Sample Page

(2) Print Fonts

(3) Hex Dump Mode

(4) PCB ONLY Mode

Six times

Seven times

(5) 1push Printing Recovery Mode

* All LEDs are lit for 1 second and the printer returns to the ready status.

(6) Network Factory Reset 1 (APIPA: ON)

* All LEDs are lit for 1 second and the printer returns to the ready status.

(7) Network Factory Reset 2 (APIPA: OFF)

* All LEDs are lit for 1 second and the printer returns to the ready status.

Eight times (8) NV-RAM Factory Reset

* All LEDs are lit for 1 second and the printer returns to the ready status.

More than nine times

(1) Test Sample Page

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CHAPTER 7 SERVICE SUPPORT SOFTWARE

NOTE:

* Each mode starts 2 seconds after pressing the

Go

button.

* Both “Network Factory Reset 1” and “Network Factory Reset 2” functions are not available for HL-5240.

Explanation of functions of each Users Mode is shown below.

< Functions of each “Users Mode” >

(1) Test Sample Page

The printer prints a demo page. The printer returns to the ready status after printing.

The printer prints a list of the internal fonts. The printer returns to the ready status after printing.

(3) Hex Dump Mode

You can print data as hexadecimal code. To exit from this mode, you have to turn off the printer.

(4) PCB ONLY Mode

Even when the engine error occurs and PCB exchange is required for recovery, the printer can be started, ignoring the engine error if this mode is used. NVRAM data can be obtained.

(5) 1push Printing Recovery Mode

Demo page print is possible by pressing

Go

button after the power supply is turned on.

(6) Network Factory Reset 1 (APIPA: ON)

The network setting is reset to its factory setting. (APIPA is ON)

(7) Network Factory Reset 2 (APIPA: OFF)

The network setting is reset to its factory setting. (APIPA is OFF)

(8) NV-RAM Factory Reset

The printer is restored to the factory setting and permanent fonts and macros are cleared.

The printer returns to the ready status after printing.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

1.2 User Maintenance Mode

This section describes what the user should do when replacing the consumable parts.

<Resetting the drum counter>

The printed image may deteriorate when using the drum unit to a certain degree. The printer detects how much the drum unit is used with the drum counter and lights up the

Drum

LED when the drum unit life is nearly at the end of its life to indicate to the user that the drum unit life reaches the end of its life soon, in order to prevent the printed image defects due to drum unit deterioration.

The printer does not provide the function which resets the drum counter automatically when the drum unit is replaced with a new one. If replacing the drum unit with a new one without resetting the drum counter, the counted value of the old drum unit is used continuously so that the

Drum

LED is not off.

When replacing the drum unit with a new one, it is required to reset the drum counter following the steps below:

<HL-5240/5250DN>

(1) Make sure that the printer is turned on and the

Drum

LED is blinking. Press the front cover release button and then open the front cover.

(2) Press and hold down the

Go

button for about four seconds until all the LEDs light up.

Once all four LEDs are lit, release the

Go

button.

(3) Take out the drum unit and toner cartridge ASSY.

(4) Put the new drum unit and toner cartridge ASSY back into the printer.

(5) Close the front cover.

<HL-5270DN/5280DW>

(1) Press the front cover release button and then open the front cover.

(2) Keep pressing the

Go

button for about four seconds. When the message of finishing resetting the drum counter, release the

Go

button.

(3) Take out the drum unit and toner cartridge ASSY.

(4) Put the new drum unit and toner cartridge ASSY back into the printer.

(5) Close the front cover.

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CHAPTER 7 SERVICE SUPPORT SOFTWARE

<Initializing the developing bias>

When replacing the toner cartridge with a new one, the new toner sensor detects that the toner cartridge is replaced, and the developing bias is initialized automatically. Therefore, the user is not necessary to initialize the developing bias.

If replacing the toner cartridge which contains enough toner with a used one, the new toner sensor cannot detect that the toner cartridge is replaced so that the developing bias is not initialized. In this case, the print density may be lighter than usual.

Density transition

Bias voltage when replacing with a new toner cartridge

Bias voltage

Dark

Bias voltage when replacing with a used toner cartridge

Density when replacing with a new toner cartridge

Print density

Density when replacing with a used toner cartridge

Light

Toner empty

[Used toner amount]

In such a case, follow the steps below in order to initialize the developing bias forcedly.

<Standard Cartridge>

(1) Open the front cover.

(2) Take the drum unit out of the printer.

(3) Press the

Go

button.

(4) Install the drum unit into the printer.

(5) Press the

Go

button.

(6) Close the front cover.

<High Yield Cartridge>

(1) Open the front cover.

(2) Take the drum unit out of the printer.

(3) Press the

Go

button.

(4) Install the drum unit into the printer.

(5) Press the

Go

button twice.

(6) Close the front cover.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

Operation procedure of Service Mode is shown below. The function change depends on number of times the

Go

button is pressed.

<HL-5240/5250DN>

1. Check that the front cover is open.

2. Turn ON the power switch while the

Go

button is held.

3. After all LEDs on the panel are lit, only the

Status

LED goes out. the button and check that all LEDs are out.

5. (1 st

step) Press the

Go

button once or twice. (If the

Go

button is pressed, the

Status

LED is lit. If the

Go

button is released, the LED is out.) that /

Drum

/

Paper

LEDs are lighted.

7. (2 nd

step) Press the

Go

button. Each mode starts after 2 seconds. (If the

Go

button is pressed, the

Status

LED is lit. If the

Go

button is released, the LED is out.)

<HL-5270DN/5280DW>

1. Check that the front cover is open.

2. Turn ON the power switch while the

Go

button is held. message ” is shown on the LCD panel. the button and check that the

Data

LED is out.

5. (1 st

step) Press the

Go

button once or twice. (If the

Go

button is pressed, the

Data

LED is lit. If the

Go

button is released, the LED is out.)

6. Check that the message “

USERS MODE

” is shown on the LCD panel with orange backlight.

7. (2 nd

step) Press the

Go

button. Each mode starts after 2 seconds. (If the

Go

button is pressed, the

Data

LED is lit. If the

Go

button is released, the LED is out.)

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CHAPTER 7 SERVICE SUPPORT SOFTWARE

1 st

Press the once.

Press the twice.

step

Go

Go

button

button

Once

Twice

Three times

Four times

Five times

Six times

Seven times

Once

Twice

2 nd

Six times

step

Three times

Four times

Five times

Seven times

Eight times

Each mode starts after 2 seconds.

(1) Factory Inspection Mode

(2) Continuous Grid Pattern Print Mode

(3) Fuser Unit Test Print

(4) NV-RAM Value Dump Mode

(5) RAM Check

(6) QA process inspection printing

(7) DX (ShortBind) ON/OFF switching

(8) Printing for Maintenance

* The machine starts printing after closing the front cover.

(9) Print Settings

* The machine starts printing after closing the front cover.

(10) Sleep Mode Indication

(OFF/Dimmed)

(11) Sleep Mode Setting (ON/OFF)

* All LEDs are lit for 1 second and the printer returns to the ready status.

(12) Developer Roller Counter Reset 1

(For the standard toner)

* All LEDs are lit for 1 second and the printer returns to the ready status.

(13) Developer Roller Counter Reset 2

(For the high capacity toner)

* All LEDs are lit for 1 second and the printer returns to the ready status.

(14) Fixed USB Speed

* All LEDs are lit for 1 second and the printer returns to the ready status.

(15) USB Speed Indication (ON/OFF)

* All LEDs are lit for 1 second and the printer returns to the ready status.

The procedure from 1 to 4 is the same as the above.

Number of times of pressing the

Go

button

Press the

Go

button for 2 seconds

(long push).

(HL-5240/5250DN)

Check that

Paper

LED is lighted.

(HL-5270DN/5280DW)

Check that the “

PIT3 MODE

” message is shown.

PIT3 Inspection Mode

* Factory use.

NOTE:

* Each mode starts 2 seconds after pressing the

Go

button.

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< Functions of each “Service Mode” >

(1) Factory Inspection Mode

This mode is to check each sensor at the assembly line.

< Sensor Inspection Check Procedure >

(1) Print “Print Settings” by clicking the

Go

button three times. If a failure such as paper jams occurs, activate each sensor manually when the machine goes into the inspection mode.

(2) Procedures to go into the factory inspection mode are as follows.

< HL-5240/5250DN >

1. Check that the front cover is open.

2. Turn ON the power switch while the

Go

button is held.

3. After all LEDs on the panel are lit, only the

Status

LED goes out. the button and check that all LEDs are out. the button once. (If the

Go

button is pressed, the

Status

LED is lit.

If the

Go

button is released, the LED is out.) that /

Drum

/

Paper

LEDs are lighted. the button once. Each mode starts after 2 seconds. (If the

Go

button is pressed, the

Status

LED is lit. If the

Go

button is released, the LED is out.)

< HL-5270DN/5280DW >

1. Check that the front cover is open.

2. Turn ON the power switch while the

Go

button is held.

3. The message “

USERS MODE

” is shown on the LCD panel.

4. Release the button and check that the

Data

LED is out.

5. Press the button once. (If the

Go

button is pressed, the

Data

LED is lit. If the

Go

button is released, the LED is out.)

6. Check that the message “

USERS MODE

” is shown on the LCD panel with orange backlight.

7. Press the button once. Each mode starts after 2 seconds. (If the

Go

button is pressed, the

Data

LED is lit. If the

Go

button is released, the LED is out.)

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CHAPTER 7 SERVICE SUPPORT SOFTWARE

(3) Activate each sensor listed below manually and verify that the

Status

LED (HL-

5240/5250DN) or the

Data

LED (HL-5270DN/5280DW) is lit. In the inspection mode, the LED blinks once when the state of a sensor of a switch is changed from ON to

OFF, or from OFF to on. When the state is changed continuously, the LED keeps blinking.

( Regist front sensor, Regist rear sensor, Paper eject sensor, New toner sensor,

Toner sensor, Front cover sensor, PE sensor, Edge sensor, MP PE sensor,

DX tray sensor )

Chute

Front cover sensor

Frame R

Toner LED PCB

(Light emission)

Frame L

Paper eject sensor

(Relay rear PCB)

MP PE sensor

PE EG sensor

DX tray sensor

New toner sensor

(Relay front PCB)

PE sensor

Toner sensor PCB

(Light reception)

Edge sensor

Regist rear sensor

Regist front sensor

High-voltage PS PCB

Fig. 7-1

(4) When the verification of all the sensors is completed, them the power off.

(2) Continuous Grid Pattern Print Mode

This mode is to print a grid pattern continuously with a serial number on it. The number of grid pattern prints is displayed at the same time.

The machine does not go back to the ready state unless the power is turned off and on.

To finish the continuous grid pattern print mode, press the

Job Cancel

button.

(3) Fuser unit Test Print

This is to print the following three patterns to check the fuser unit.

・ 

Grid pattern with a serial number on it

・ 

Gray pattern

・ 

Black pattern

When this operation is completed, the machine automatically goes back to the ready state.

(4) NV-RAM Value Dump Mode

This is to collectively print the present state of the NV-RAM of all printers.

When this operation is completed, the machine automatically goes back to the ready state.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

This is to execute a stricter RAM check than a standard one. If the result turns out unaccepted, it considers an error, and all the LEDs blink. If it turns out accepted, the

Ready

LED keeps blinking.

The machine does not go back to the ready state unless the power is turned off and on.

(6) QA Process Inspection Printing

This is to print the four patters in order to check the printer quality. The printer automatically returns to the normal status after this function is completed.

(7) DX (ShortBind) ON/OFF Switching

This is to switch ON (ShortBind) or OFF (LongBind (invalid for some models)) of the duplex setting. Whenever switching the setting, the current setting is changed to the other one.

(8) Printing for Maintenance

This is to print a list of all maintenance information including printer coverage information.

• Cont. ROM VERSION

• Remaining life of periodical replacement parts

Page Count:

Average Coverage:

• <Total Pages Printed>

MP TRAY:

TRAY 1:

TRAY2:

TRAY3:

DUPLEX:

• <Total Pages Printed>

A4/LETTER:

LGL/A4LONG/FOLIO:

B5/EXECUTIVE:

ENVELOPE:

A5:

OTHERS:

• <Error History (last 10 errors)>

The page counter when each error occurred is also indicated.

• <Total Pages Jams>

JAM MP TRAY:

JAM TRAY 1:

JAM TRAY2:

JAM TRAY3:

JAM INSIDE:

JAM REAR:

JAM DUPLEX:

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CHAPTER 7 SERVICE SUPPORT SOFTWARE

PF KITMP:

PF KIT 1:

PF KIT 2:

PF KIT 3:

FUSER:

LASER:

DRUM:

TONER:

• <Total Pages Printed>

Previously Used Toner:

Current Toner:

NOTE:

* Some margin of error must be taken into consideration because coverage for the printable area of A4-size paper is calculated using video signals

* If the firmware version is 1.02 or before, the maintenance information gives out false information on the remaining life of Drum. To know the accurate information of Drum, print the Print Settings or upgrade the firmware version.

If you want to know the drum unit life or the number of printed pages, you should print out the Print Settings.

The “Print Settings” is configured with two pages for HL-5240 and more than three pages for HL-5250DN/5270DN/5280DW.

All pages have following terms in common:

* Title

* Model name

* Serial number

The setting indication is the same as the panel setting information, supporting 17 languages.

(ENG / FRE / GER / DUT / ITA / SPA / NOR / FIN / DAN / POR / SWE / CZE / POL /

HUN / RUS / BUL / RUM)

The descriptions on the third page or later are indicated in English only.

NOTE:

The descriptions printed in Print Settings vary depending on the countries.

It is also allowed you to print the print settings by pressing the

Go

button three times continuously when the front cover is closed and when the printer is in the ready mode.

Select Information, then Print Settings by pressing the

Set

button three times.

(HL-5270DN/5280DW)

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

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CHAPTER 7 SERVICE SUPPORT SOFTWARE

< Page 1 >

This page includes various setting information of the printer. Each term is indicated when it fulfills the condition.

< Page 2 >

This page includes the printer and maintenance information in the following order.

(1) Printer information

The following terms are indicated in the order.

Controller version (CONT.ROM VERSION)

RAM SIZE (Mbyte)

• Device information (RAMDISK)

(2) Maintenance information

The printable pages remained for the consumable part is indicated.

Also, the percentage of life remained over the total printable pages is indicated in numerical value and band graph.

A sample (PF KIT MP) is as follows:

From the top left, the consumable part name, number of printable pages remained, and percentage of life remained are indicated. The right column is a band graph separated into 50 scale marks.

The consumable part indicated is as follows:

PF KIT MP

• PF KIT 1

PF KIT 2 (indicated only when the Tray2 is installed.)

PF KIT 3 (indicated only when the Tray3 is installed.)

• FUSER

LASER

DRUM

< How to Read the Drum Unit Life >

The drum unit life is shown by the band graph at the center of Print Settings;

It initially indicates 100% and gradually decreases.

• It indicates 0% when the

Drum

LED is blinking.

It stays at 0% even if further printing is done.

< The difference of the Drum Unit Life and the Drum Counter >

The drum unit life is based on the page counter. If the average number of drum rotations is more than the number of drum rotations in non-continuous printing, however, the drum unit life is counted by the number of drum rotations.

Since the drum counter printed in Print Settings is an actual page counter after a new drum unit is replaced, the drum unit life may be different from the drum counter.

For details on the difference between the drum unit life and drum counter, refer to the drum unit life calculation below;

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

< How to calculate Drum Unit Life >

The number of drum rotations per one page printing is about 11 rotations.

(Page counter reduced by the number of drum rotations) =

(the number of drum rotations) ÷ 11

- The number of drum rotations per one page printing continuously = 3.6 rotations.

- The number of drum rotations while warming-up = 9 rotations

Example:

The number of pages calculated from drum rotations

Cold start (page) Hot start (page)

1 page/job (9 + 11) / 11 = 1.82

2 pages/job (9 + 11 + 3.6) / 11 = 2.15

11 / 11 = 1

(11 + 3.6) / 11 = 1.33

18 pages/job (9 + 11 + 3.6 x 17) / 11 = 7.38 (11 + 3.6 x 17) / 11 = 6.56

If printing 1 page per job with cold start, the drum unit life is decreased earlier.

(ii) Counter information, history information

The counter and history information related to the following term are included. When it reaches the maximum count, each term is no longer counted.

Page counter

The total number of pages printed. The maximum count is 1 million pages.

Coverage on the Letter-size paper

Average printing rate. The average of the total printed area against the printable are on the Letter-size paper. The coverage is calculated when up to 1 million pages are printed, and it is not updated after this.

It is not printed on the Print Settings by default. (It is printed on the maintenance sheet by default.)

Total pages printed (TRAY)

The number of times that each of the Tray1, Tray2, Tray3, MP tray and Duplex tray is used. (For the Duplex tray, the number of times is printed only for the models supporting the Duplex tray, and it is not printed for HL-5240.)

The maximum count for each item is 1 million times.

The information above is not cleared when replacing the PF kit.

Total pages printed (PAPER)

The number of A4/Letter, A4Long/Legal/Folio, B5/Excutine, Envelope,

A5 and other paper types used. The maximum count for each item is

1 million times.

Total paper jams

The number of paper jam occurrence in each of the Tray1, Tray2,

Tray3, MP tray and Duplex tray. (For the Duplex tray, the number of occurrence is printed only for the models supporting the Duplex tray, and it is not printed for HL-5240.)

The paper jam which occurs when the printer is turned ON is not counted.

The maximum count for each item is 255 times.

Replace count

The number of replacement of each of the drum unit, toner cartridge,

PF Kit, Tray 1/2/3, MP tray, fuser unit and laser unit. The maximum count for each item is 65535 times.

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CHAPTER 7 SERVICE SUPPORT SOFTWARE

Error history

The error history including the 10 latest errors and the number of pages when these errors occur are indicated. The errors such as

Cover Open, Manual Feed, No Paper XX and No Tray XX are not included. The list is updated until the 1 millionth error occurs, and it is not even when more than 1 million errors occur.

The page counter when each error occurred is also indicated.

• Developing bias

The current developing bias is indicated. It is not printed on the Print

Settings by default.

(It is printed on the maintenance sheet by default.)

• Number of prints for each toner cartridge

The number of printed pages for each of the toner cartridges used currently and last. (It is printed only in the maintenance sheet.) The maximum count is 65535 pages.

< Page 3

~

>

This page includes various network settings information of the printer.

(10) Sleep Mode Indication (OFF/Dimmed)

This is to select whether the

Status

LED is turned off completely or lit in green with low light intensity during the Sleep mode. Whenever you switch this mode, the setting is changed over from the present one to the other. When you take your finger off from this switch, the

Status

LED is lit in 100% light intensity or low light intensity according to the setting so that you can verify the present setting.

(11) Sleep Mode Setting (ON/OFF)

This is to allow you to turn on and off the sleep mode of the printer. The default setting is

ON. The machine automatically goes back to the ready state after the operation is completed.

(12) Developer Roller Counter Reset 1 (For the standard toner)

(13) Developer Roller Counter Reset 2 (For the high yield toner)

Since print density is likely to become darker as toner is getting older, the developing bias is lowered by degrees according to the number of prints so that an almost fixed density can be maintained from the start of the use of brand-new toner to the end of it. The value of the developing bias is printed on the maintenance sheet. The developing bias is a parameter which depends on the developing assembly, so it needs to be reset when the developing assembly is replaced. At that time, the developing roller counter reading is also reset. This mode is to enable to execute these operations (equivalent to those done when the developing assembly is replaced) manually from the service mode.

(14) Fixed USB Speed

This allows you to switch the setting of Full fixed / Auto switching (HIGH/FULL) of the

USB speed. Whenever switching, the current setting is changed to the other one.

The default setting is Auto switching.

It also allows you to check the selected setting by the

Toner

or

Drum

LED being lit for

1 second when releasing the button. The former shows that the setting is Full fixed, and the latter shows Auto switching.

(15) USB Speed Indication (ON/OFF)

This allows you to switch whether the current USB speed is indicated with the LED or not.

Whenever switching, the current setting is changed to the other one.

The USB speed is not indicated by default.

It also allows you to check the selected setting by the

Toner

and

Drum

LEDs being lit for 1 second or all LEDs being lit for 1 second when releasing the button. The former shows that the USB speed indication is ON, and the latter shows OFF.

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HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

2. HIDDEN FUNCTION MENUS

The three hidden function menus are provided for the HL-5270DN/5280DW printer with the LCD.

• Professional Menu: by pressing the

Go

and

Set

buttons at the same time.

Reset Parts Life Menu: by pressing the

Go

and

+

buttons at the same time.

• Service Menu: by pressing the

+

and

Set

buttons in this order while holding down the

Go

button.

The method to enter the special mode by the button operation is as follows:

<Pressing the

1

button when the printer is turned ON>

Panel Function

Go

Mode

Reprint

Continuous test printing

+

-

Set

Version Check

Hex Dump Mode

Initializing the NVRAM

<Pressing the

2

button when the printer is turned ON>

Panel Function

Set

&

Back

Go

&

+

Go

&

Back

-

&

+

Go

&

Set

Rewriting the Flash ROM

Checking the hardware (DRAM check, etc.)

Factory Line Inspection Mode

Clearing the E50 (FUSERMULF)

<Pressing the

2

button in the normal status>

Panel Function

Go

&

+

RESET PARTS LIFE (Clearing the counters of the periodical replacement parts)

Go

&

Set

Professional

-

&

Set

Indicating the error descriptions (The details of the service call or paper jam occurrence section are indicated in English.)

<Others in the normal status>

Panel Function

Go

& (

+

,

Set)

Service Menu (Acquiring the service information such as the number of replacement or paper jam occurrence, error, etc.)

Go

& (

-

,

+

,

Set)

Developer Menu (Setting the specific function for the engineers)

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CHAPTER 7 SERVICE SUPPORT SOFTWARE

The main purpose of the professional menu is to customize the printer function which is opened to the users as per request.

How to enter the Professional Menu

Turn the machine on.

Press the

Go

switch and

Set

switch together to enter the Professional Menu.

How to access the Required Menu

Use either “

+

” or “

“ switch to scroll through the menu listing. To select an item, press the

Set

” switch. Then the sub-menu will appear.

Scroll through the sub menu items using the “

+

/

“ switches. To go back to a higher level, select the “exit …” menu in the same level using the “

+

/

“ switches.

How to input a Value or set for a Professional Menu Mode

Enter the required mode as explained above. The setting appearing on the display is the current setting.

Select the required setting using the “

+

/

“ switches, then press the “

Set

” switch. The previous value remains if the “

Set

” switch is not pressed.

How to exit the Professional Menu Mode

There are three options to exit the Professional Menu mode; either to press “

Go

” switch at any sub menus, to press the “

” switch consecutively to go up roots till exiting the Professional

Menu mode, or to go down the menu using “

+

/

“ switches till the menu “exit MENU” appears, and then press the “

Set

” switch to exit the mode.

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< Function Table >

Title & Subtitle

TRAY SETTING

MANUAL FEED

RESET SETTINGS

SAVE SETTINGS

SAVE FONT

PRIMARY FONT

SECONDARY FONT

DOWNLOAD FONT

SAVE MACRO

(When a macro is registered if the LaserJet emulation is selected.)

TRAYCOMMAND MODE

READOUT SELECT

Item to be Set Description

PAPER IN=CONT*

PAPER IN=STOP

RESET SETTING1

SAVE SETTING1

SET ID=####

SET ID=####

Feeds paper automatically when printing using the manual feed function.

Feeds paper by pressing the

Go

button when printing using the manual feed function.

Selects the “User setting 1” as the current printer setting.

Saves the current printer setting as the “User setting 1”.

Saves the current primary fonts in

LaserJet Emulation into the storage devices (ROM Disk).

After fixing the first three digits with the

Set

button, set the last two digits.

Saves the current secondary fonts in

LaserJet emulation into the storage devices (ROM Disk).

After fixing the first three digits with the

Set

button, set the last two digits.

DOWNLOAD=####

SET ID=####

TRAY COM.=NORM.* HP LaserJet 4 compatible.

TRAY COM.=SPEC. HP LaserJet 3 compatible.

READOUT=ON

Saves the downloaded fonts in

LaserJet emulation into the storage devices (ROM Disk).

After fixing the first three digits with the

Set

button, set the last two digits.

Saves the macro in LaserJet emulation into the storage devices

(ROM Disk).

After fixing the first three digits with the

Set

button, set the last two digits.

READOUT=OFF*

When receiving DC3 in FX emulation, ignores the data received before DC1.

Not ignore the data even DC3 is received.

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Title & Subtitle

FONT SELECT

SCALABLE FONT

(Only when the

LaserJet emulation is selected.)

FONT SELECT

IBM CHR SET MODE

W BOLD ON/OFF

DLFNT Bd/It

B PROD ON/OFF

CONDENCE SELECT

OEM FONT SELECT

DARKFONT SELECT

Item to be Set Description

FONT=ALL*

FONT=LJ4

PRIMARY FONT

SECONDARY FONT

IBM E1H=Esszet*

IBM E1H=Beta

W BOLD=OFF*

W BOLD=ON

DLFNT Bd/It=NO*

DLFNT Bd/It=YES

B PROD=ON*

B PROD=OFF

CONDENC=16.66p*

Enables all scalable fonts when selecting PCL font setting.

Disables the fonts below when selecting PCL font setting.

Atlanta, Bermuda Script, PC

Brussels, Copenhagen, Germany,

Portugal, Calgary, San Diego, US

Roman

Selects primary fonts in LaserJet emulation.

Selects secondary fonts in LaserJet emulation.

Places “Esszet” on E1h of IBM character set.

Places “Beta” on E1h of IBM character set.

Does not convert into bold even if the same character is entered into the same position in the FX or XL emulation.

Converts into bold if the same character is entered into the same position in the FX or XL emulation.

(The print speed is lowered.)

Creates the bold and italic letters from the download font.

Does not create the bold and italic letters from the download font.

Creates the bold and italic letters from the bitmap font.

Does not create the bold and italic letters from the bitmap font.

Sets the pitch of the condense letter in the EPSON/IBM emulation to

16.66 pitches.

CONDENC=17.14p Sets the pitch of the condense letter in the EPSON/IBM emulation to

17.14 pitches.

OEMFONT=DISABLE* Disables the European Parliament fonts.

OEMFONT=ENABLE Enables the European Parliament fonts.

DARKFONT=DISABLE* Disables the bold brougham font.

DARKFONT=ENABLE Enables the fold brougham font.

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Title & Subtitle

FONT SELECT

BRO FONT SELECT

Item to be Set Description

BROBITM=ENABLE

BROBITM=DISABLE* Disables the internal brougham bitmap fonts of 10 and 12 pitches.

Enables the internal brougham bitmap fonts of 10 and 12 pitches.

300DPI PRIORITY 3B PRIO=LOW*

FX/XL SCALE FONT

(Setting related to the default font and font selected on the panel in the EPSON/IBM emulation.)

FX/XL SCALE ITA.

(Setting related to italic of scalable font when the EPSON/IBM emulation.)

PAPER&TRAY SIZE

3B PRIO=HIGH

SCAL.F=NORMAL*

SCAL.F=ALL SIZE

ITA=OBLIQUE*

ITA=ITALIC SEL

DEF PAPER=A4

The priority of selection for 300dpi bitmap fonts is standard (=low).

Command <ESC><CR>!1T

The priority of selection for 300dpi bitmap fonts is high.

Command <ESC><CR>!2T

Only similar size fonts are selectable as scalable is selected.

All size fonts are selectable as scalable font is selected.

PARALLEL MENU

REPRINT ON/OFF

PS BINARY SELECT

DEF PAPER=LT

CDCC BSSL=L*

CDCC BSSL=H

REPRINT=ON*

REPRINT=OFF

PS BINARY=ASCII*

PS BINARY=BIN

Makes upright font oblique to have italic as scalable font is selected.

Uses the upright font to have italic as scalable font is selected.

Printers to be shipped to the other area than USA and Canada have the

A4 size setting by default.

Printers to be shipped to USA and

Canada have the Letter size setting by default.

ACK signal is sent out before BUSY signal goes down.

ACK signal is sent out when BUSY signal goes down.

The ON/OFF setting of the reprint function follows the setting of the user menu.

Turns the reprint function OFF forcedly.

Default setting. A problem may occur when printing the binary data though

Ctrl-T, Ctrl-C and the like are enabled.

Allows you to print the binary data though Ctrl-T and the like are disabled.

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CHAPTER 7 SERVICE SUPPORT SOFTWARE

Title & Subtitle

PS QUOTE BINARY

PS IMAGE MASK

PS CELL MODE

PS STATUS ECHO

PROTECT OFF MODE

HP ESC E COMMAND

DPX FF SUP. MODE

PS300RESO

COPY PAGES

JOB TIMEOUT SEL

PICKUP RETRY SET

JOB CANCEL TIME

PSCOPYPAGE

1JOB1PAGE SEL

APPLEUSBPS

Item to be Set Description

PS QUOTEBIN=OFF* Not accept the binary data even with special codes.

PS QUOTEBIN=ON Accepts the binary data with special codes.

PS IMAGEMSK=OFF* Does not rewrite the IMAGEMSK procedure.

PS IMAGEMSK=ON Rewrites the IMAGEMSK procedure.

PS CEIL=FLOOR*

PS CEIL=CEIL

STATUS ECHO=ON*

STATUS ECHO=OFF

PRO.OFF=AUTO*

PRO.OFF=NORMAL

Carries out the page protect if it is turned OFF. (Memory full, Print overrun)

Specification up to the fourth Mask

ROM.

HP ESC E=RESET*

HP ESC E=F/F

DPX SUP. =NOMAL*

DPX SUP. =SPEC.

PS300RESO=NO*

Normal resetting.

Form feeds a printable page only.

Deletes all white pages having no data.

Deletes only the page that both sides of paper is white.

Does not reduce the resolution automatically.

PS300RESO=IF 2M Reduces the resolution to 300dpi when the total memory is 2Mbytes.

PS300RESO=FORCE Reduces the resolution to 300dpi.

COPY PAGES=ON*

COPY PAGES=OFF

OFF: 1 page is fixed for the copy page number.

TIMEOUT=ON*

TIMEOUT=OFF

PJL JOB TIMEOUT is effective.

PJL JOB TIMEOUT does not carry out.

PICKUP RETRY=2*

(0-7)

TIME OUT=???sec

PSCOPYPAGE=L3* Changes the PS copypage operator from Level3 to Level2.

PSCOPYPAGE=L2

1JOB1PAGE=SX*

1JOB1PAGE=DX

BINARY=OFF*

BINARY=ON

Duplex=ON makes the printing speed of 1 page of data faster.

Sets up the printing mode.

(Simplex/Duplex)

Enables to print PS Pure Binary data via Mac USB.

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Title & Subtitle

MP CAS ADJUST

NET HEAP SIZE

PS FONT CACHE

POWER SAVE

TONER LOW

Changes the timing when the toner low error is detected.

T1 MEDIA FIX

Selects the media type of

Tray1. The default setting is OFF. When fixing the media to any type of setting, the printer ignores the media type set in the print data (driver) and prints with the media type set in the printer.

Item to be Set Description

MPTRAY YADJUST

PCTRAY YADJUST

DUPLEX YADJUST

MPTRAY XADJUST

TRAY1 XADJUST

TRAY2 XADJUST

TRAY3 XADJUST

DUPLEX XADJUST

HEAPSIZE=xxxxK*

Adjusts the position of starting scanning in each paper tray.

-50 to 50 dot (300dpi)

Adjusts the position of starting scanning in each paper tray.

-100 to 750 dot (300dpi)

CLEAR CACHE=OFF*

CLEAR CACHE=ON

POWER SAVE=ON*

POWER SAVE=OFF

TONERLOW=ON*

T1 FIX=RECYCLED

Changes the size of the beep area used on Web. Allows you to change the size by 15 degrees. (The value from 0 to 14 is stored in the NVRAM internally.)

Controls whether the font cache is cleared or not when finishing a job in the PS emulation. When setting to

OFF, the font cache is not cleared and is enabled for the next job.

When setting to ON, the font cache is cleared and disabled for the next job.

Implements the power save setting. It is not allowed to set the power save setting to OFF on the panel. When the setting to OFF, the power save time is not displayed on the panel.

Checks toner with the duty level of

2%. (Default)

TONERLOW=DELAY Checks toner with the duty level of

8%.

TONERLOW=OFF

T1 FIX=OFF*

Does not detect the toner low error.

The media type of Tray1 follows the one set in the print data.

T1 FIX=PLAIN

T1 FIX=TRANS.

T1 FIX=THIN

Fixes the media of Tray1 to plain paper.

Fixes the media of Tray1 to transparencies.

Fixes the media of Tray1 to thin paper.

T1 FIX=BOND Fixes the media of Tray1 to bond paper.

Fixes the media of Tray1 to recycled paper.

7-21

Confidential

CHAPTER 7 SERVICE SUPPORT SOFTWARE

Title & Subtitle

T2 MEDIA FIX

Selects the media type of

Tray2. The default setting is OFF. When fixing the media to any type of setting, the printer ignores the media type set in the print data (driver) and prints with the media type set in the printer.

T3 MEDIA FIX

Selects the media type of

Tray3. The default setting is OFF. When fixing the media to any type of setting, the printer ignores the media type set in the print data (driver) and prints with the media type set in the printer.

DEF PCL ERRPRT

Sets the default value of

PCL error print. The setting value is reflected on the setting value of

PCL error print when implementing PJL initialization or factory reset.

Item to be Set Description

T2 FIX=OFF*

T2 FIX=PLAIN

T2 FIX=TRANS.

T2 FIX=THIN

T2 FIX=BOND

T2 FIX=RECYCLED

T3 FIX=OFF*

T3 FIX=PLAIN

T3 FIX=TRANS.

T3 FIX=THIN

T3 FIX=BOND

The media type of Tray2 follows the one set in the print data.

Fixes the media of Tray2 to plain paper.

Fixes the media of Tray2 to transparencies.

Fixes the media of Tray2 to thin paper.

Fixes the media of Tray2 to bond paper.

Fixes the media of Tray2 to recycled paper.

The media type of Tray3 follows the one set in the print data.

Fixes the media of Tray3 to plain paper.

Fixes the media of Tray3 to transparencies.

Fixes the media of Tray3 to thin paper.

Fixes the media of Tray3 to bond paper.

T3 FIX=RECYCLED Fixes the media of Tray3 to recycled paper.

DEF ERRPRT=AUTO* Identifies the model and determines the default value automatically.

HL-5240/5250DN: ON

HL-5270DN/5280W: OFF

DEF ERRPRT=OFF

DEF ERRPRT=ON

Sets the default value of PCL error print to OFF.

Sets the default value of PCL error print to ON.

7-22

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

2.2 Reset Parts Life Menu

The reset parts life menu is used when the service personnel replace the periodical replacement parts. This menu is divided into the service menu described in the next section since it is supposed that a user replaces such parts if the replacement operation is easy. To enter the reset parts life menu, press the

Go

and

+

buttons at the same time until the menu

“RESET PARTS LIFE” appears on the LCD display. Select the required item (part name) using the “

+

/

“ switches, then press the “

Set

” switch.

< Function Table >

Title

Reset Parts Life Menu

Item to be Set

DRUM UNIT

PF KITMP

PF KIT 1

PF KIT 2

PF KIT 3

FUSER UNIT

LASER UNIT

Description

Initializes the drum unit remaining life.

Initializes the paper feeding kit MP remaining life.

Initializes the paper feeding kit 1 remaining life.

Initializes the paper feeding kit 2 remaining life.

Initializes the paper feeding kit 3 remaining life.

Initializes the fuser unit remaining life.

Initializes the laser unit remaining life.

7-23

Confidential

CHAPTER 7 SERVICE SUPPORT SOFTWARE

The main purpose of the service menu is to provide the service personnel with the printer information.

How to enter the Service Menu

Turn the machine on.

Press the

+

and

Set

buttons in this order while holding down the

Go

button.

How to access the Required Menu

Use either “

+

” or “

“ switch to scroll through the menu listing. To select an item, press the

Set

” switch. Then the sub-menu will appear.

Scroll through the sub menu items using the “

+

/

“ switches. To go back to a higher level, press the

Back

button.

How to exit the Service Menu

There are two options to exit the Professional Menu mode; either to press “

Go

” switch at any sub menus, to press the “

Back

” button consecutively to go up roots till exiting the Service

Menu.

7-24

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

< Function Table >

Title Subtitle

SERVICE INFO

ERROR

HISTORY

PAGE COUNT

JAM COUNT

JAM MP TRAY

JAM TRAY1

JAM TRAY2

JAM TRAY3

JAM INSIDE

JAM REAR

JAM DUPLEX

Description

Displays the number of printing pages.

REPLACE COUNT

TONER Displays the number of the toner cartridge unit replacement.

DRUM UNIT

PF KIT MP

PF KIT 1

Displays the number of the drum unit replacement.

Displays the number of the PF kit replacement.

PF kit MP/1/2/3 = PF kit for MP Tray / Tray1 /

Tray2 / Tray3.

PF KIT 2

PF KIT 3

FUSER UNIT

LASER UNIT

COVERAGE

PRINT PAGES

A4/LTR PAGE

LGL/A4LONG

PAGE

B5/EXE PAGE

ENVELOPE

PAGE

A5 PAGE

OTHER PAGE

1:#######

2:#######

3:#######

……

10:#######

Displays the number of jam occurrence.

Displays the number of the fuser unit replacement.

Displays the number of the laser unit replacement.

Displays the average coverage (when printing

Letter size paper at 100% print coverage).

Displays the number of pages when printing each paper size.

PRINT PAGES counter will be effective until it counts up to 100,000 pages for each paper size.

A4/LTR: A4, Letter

LGL/A4LONG: Legal, A4 long, FOLIO

B5/EXE: ISO B5, JIS B5, Executive

ENVELOPE: C5, COM10, DL, DLL, MONARCH

A5: A5

OTHER: Other paper than the ones described above.

Displays the 10 latest errors in order of newest to the oldest.

7-25

Confidential

CHAPTER 7 SERVICE SUPPORT SOFTWARE

Title Subtitle

LIFE PERIOD

DRUM LIFE

CHK %

MODIFY COUNT

(When setting the number of remaining life, the cursor moves to upper digits every time the

Set

button is pressed.

The counter is set by pressing the

Set

button when the cursor is placed at the top digit.)

DRUM UNIT

PF KIT

FUSER UNIT

LASER UNIT

Description

Displays the drum unit life period. (page)

Displays the PF kit life period. (page)

Displays the fuser unit life period. (page)

Displays the laser unit life period. (image)

Sets up the timing of showing “CHANGE DRUM

SOON” message.

Default setting: 90%, Setting range: 1 to100%

JAM COUNT Displays the total number of paper jam occurrence.

JAM MP TRAY

JAM TRAY1

JAM TRAY2

JAM TRAY3

JAM INSIDE

JAM REAR

JAM DUPLEX

REPLACE COUNT

The number of paper jam occurrence can be changed only to 0. (Reset only)

TONER

DRUM UNIT

PF KIT MP

PF KIT 1

Displays the number of the toner cartridge replacement.

Displays the number of the drum unit replacement.

Displays the number of the PF kit replacement.

PF kit MP/1/2/3 = PF kit for MP Tray / Tray1 /

Tray 2 / Tray 3.

PF KIT 2

PF KIT 3

FUSER UNIT

LASER UNIT

REMAIN LIFE

DRUM UNIT

DRUM UNIT2

PF KIT MP

PF KIT 1

PF KIT 2

PF KIT 3

Displays the number of the fuser unit replacement.

Displays the number of the laser unit replacement.

Displays the drum unit remaining life counters.

(page)

Displays the drum unit remaining life counters.

(rotation)

Displays the PF kit remaining life counters.

PF kit MP/1/2/3 = PF kit for MP Tray / Tray1 /

Tray 2 / Tray 3.

FUSER UNIT

LASER UNIT

Displays the fuser unit remaining life counters.

Displays the laser unit remaining life counters.

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Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

Title Subtitle Description

RESET COUNT

NV-RAM DEBUG NV-RAM HEX PRINT Prints NV-RAM HEX dump.

PPDS SUBSET ON/OFF Supports the PPDS Subset command in the FX

Emulation mode.

TEST MENU

CLEAR COVERAGE Initialize average coverage counter.

CLEAR ERROR HIST Initialize error history.

FAN TEST

FAN 1=ON/OFF*

Carries out movement test of FANs.

Carries out movement test of main fan, LVPS fan.

Carries out movement test of main motor.

MOTOR TEST

MAIN

MOTOR=ON/OFF*

SCAN

MOTOR=ON/OFF*

SENSOR TEST

FRONT

COVER=ON/OFF

Carries out movement test of scanner motor.

Front cover sensor (ON: Close)

T1

KOUTAN=ON/OFF

T2

KOUTAN=ON/OFF

T3

KOUTAN=ON/OFF

T1 tail edge sensor

T2 tail edge sensor

T3 tail edge sensor

REGI-MAE=ON/OFF Regist front sensor

REGI-ATO=ON/OFF Regist rear sensor

EJECT=ON/OFF Paper eject sensor

T1 PAPER=ON/OFF Tray 1 paper sensor

T2 PAPER=ON/OFF Tray 2 paper sensor

T3 PAPER=ON/OFF Tray 3 paper sensor

MP

PAPER=ON/OFF

MP Tray paper sensor

DX UNIT=ON/OFF The DX unit is closed. (ON: Close)

REAR

COVER=ON/OFF

Back cover sensor (ON: Close)

NEW

TONER=ON/OFF

T2

CONNECT=ON/OFF

New toner sensor

Tray 2 connect sensor

T3

CONNECT=ON/OFF

T4

CONNECT=ON/OFF

TONER=ON/OFF

Tray 3 connect sensor

Tray 4 connect sensor

Toner sensor (ON: Light reception)

7-27

Confidential

CHAPTER 7 SERVICE SUPPORT SOFTWARE

PRINT

Title Subtitle

MAINTENANCE

Description

Always prints the maintenance and consumable parts information on the second page of the

Print Settings.

<Developing Bias: xxx V> is added to the end of the page.

The xxx characters show 400 V when the developer counter is 0 page, and it is designed that they are changed gradually from 400V to

300V at 4,000 pages (for standard cartridge) or

7,000 pages (for high yield cartridge). They remain 300V after 4,000 pages (for standard cartridge) or 7,000 pages (for high yield cartridge).

7-28

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

3. NVRAM DEFAULT VALUE

The default values for the main items to be set in NVRAM are as follows;

Timing of

Development switching timing

Paper size

Items Descriptions

Drum

LED ON

Fixing temperature

Smaller size mode

25,000 pages

(Counted from the drum unit life.)

The developing bias is switched from 400V to 300V gradually when 4,000 pages (Standard cartridge), 7,000 pages (High yield cartridge) are printed.

It is switched to 400V again when the toner cartridge is replaced with the new one.

(Counted from the number of the drum rotation in noncontinuous printing)

Transparency: 185°C

Thin paper: 195°C

Plain paper: 213°C

Thick paper: 200°C

Thicker/Bond paper: 200°C (in non-continuous printing)

Refer to 3.8 ‘PRINT SPEEDS WITH VARIOUS SETTINGS’ in

Chapter 1 .

The default paper size is "A4". The paper size needs to be changed in US and other countries.

7-29

Confidential

Appendix 1. Main PCB Circuit Diagram, HL-5240/5250DN/5270DN/5280DW (1/7)

1

2 3 4 5 6

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7 8

A

B

C

D

E

F

Main Asic (Valkyrie)

MAIN ASIC(1/3)

SD_D[15-0]

2-1C

45MHz

C103

C5P

DATA[15-0]

3-1D/4-1E

DATA[0]

DATA[1]

DATA[2]

DATA[3]

DATA[4]

DATA[5]

DATA[6]

DATA[7]

DATA[8]

DATA[9]

DATA[10]

DATA[11]

DATA[12]

DATA[13]

DATA[14]

DATA[15]

TP500

R135

100

2

TP258

Y6

U6

SXOUT sys_clk

PLL

SSCG_AVDD

Y4

SSCG_AGND

Y3

TP254

C231

L17

(1608)

C232

C106

(2012)

R245

1 (1608)

+1.5V

System PLL

1.35V

1.65V

SGND

RESET_N

LAN_INT

X2 R134

4.7k

W6

C102

C5P

1

SMD-49

48.00MHz

3-2A/3-5A/3-6E

R106

1k

C68

C101

TP333

V20

4-1B

SGND

SGND

D20

F17

E17

E18

SXIN

RSTICN

EXINTN0

EXINTN1

EXINTN2/PD01

DREQN/PD00

6

7

8

5

6

7

8

5

6

7

8

5

5

6

7

8

+3.3V

2

1

4

RA15

33

3

U19

TP331

R18

2

U20

T19

1

4

RA14

33

3 TP332

T20

R19

2

P17

1

4

3

RA13

33

TP330

P18

R20

P19

N18

N17

P20

4

3

RA12

33

TP329

M17

2

1

N19

N20

DATA00

DATA01

DATA02

DATA03

DATA04

DATA05

DATA06

DATA07

DATA08

DATA09

DATA10

DATA11

DATA12

DATA13

DATA14

DATA15

B16

SDBKUPN

Local BUS

ADR01

ADR02

ADR03

ADR04

ADR05

M18

M19

M20

L18

TP343

ADR06

ADR07

ADR08

L19

L20

TP326

L17

K17

K19

ADR09

ADR10

ADR11

ADR12

K20

TP322

K18

J20

J19

ADR13

ADR14

ADR15

ADR16

ADR17

ADR18

J18

H20

H19

ADR19

ADR20

ADR21

ADR22

ADR23

ADR24

SDRAM

DIMM_VDD

DIMMD_GND

E1

G3

GND_D1

D1

TP325

J17

G20

TP327

H17

H18

G19

F20

TP324

G18

G17

C103

IORDN

IOWRN

E20

F19

R272

TP319

R105

47

47

E19

TP317

R271

F18

TP320

R269

33

CSROMN0

CSROMN1

33

EXCSN0

EXCSN1/PA01

D19

TP318

@R273 33

D18

TP328

C19

TP323

EXCSN2/PA02

DACKN/PA00

C20

TP374

R268 10k

TP316

ASIC def )

7

6

5

8

7

8

7

6

5

8

8

7

6

5

6

5

8

7

6

5

8

7

6

5

C207

C103

SGND

1

2

RA8

33

3

4

1

2

3

RA7

33

4

1

2

RA5

33

3

4

2

3

1

RA4

33

4

1

2

3

RA3

33

3

4

4

1

2

RA2

33

3-2A/3-3A/4-1A

3-2A/3-3A/4-1A

+3.3V

SGND

ADR[1]

ADR[2]

ADR[3]

ADR[4]

ADR[5]

ADR[6]

ADR[7]

ADR[8]

ADR[9]

ADR[10]

ADR[11]

ADR[12]

ADR[13]

ADR[14]

ADR[15]

ADR[16]

ADR[17]

ADR[18]

ADR[19]

ADR[20]

ADR[21]

ADR[22]

ADR[23]

ADR[24]

(SDRAM CLK

3-3A

3-2A

4-1A

)

SGND

IO_RD_N

IO_WR_N

ROM0_CS_N

ROM1_CS_N

LAN_CS_N

3-1D/4-1D

ADR[24-1]

SD_D[0]

SD_D[1]

SD_D[2]

SD_D[3]

SD_D[4]

SD_D[5]

SD_D[6]

SD_D[7]

SD_D[8]

SD_D[9]

SD_D[10]

SD_D[11]

SD_D[12]

SD_D[13]

SD_D[14]

SD_D[15]

PEDG_SEN

5-2D

REG_F_SEN

5-2D

REG_R_SEN

5-2D

PO_SEN

5-7E

PNEW_SEN

5-7B

FRONT_COVER_SEN

5-7C

T1_PE_SEN

5-2D

MP_PE_SEN

5-2E

DX_UNIT_SEN

5-7E

LT1_PE_SEN

5-4E

LT1_PEDG_SEN

5-4E

LT2_PE_SEN

5-4E

LT2_PEDG_SEN

5-4E

LT_DET1

5-4F

LT_DET2

5-4F

LT_DET3

5-4F

EEPROM_DATA

2-6E

D2

DIMMD00

C1

C2

DIMMD01

E3

DIMMD02

DIMMD03

D3

F4

DIMMD04

B1

DIMMD05

DIMMD06

C3

DIMMD07

A1

E4

DIMMD08

D4

DIMMD09

DIMMD10

B2

D5

DIMMD11

A2

DIMMD12

DIMMD13

D6

B3

DIMMD14

DIMMD15

C4

C5

A4

B4

DIMMD16/PE00

DIMMD17/PE01

A3

DIMMD18/PE02

DIMMD19/PE03

C6

DIMMD20/PE04

DIMMD21/PE05

B5

A5

DIMMD22/PE06

B6

DIMMD23/PE07

DIMMD24/PE08

D7

C7

DIMMD25/PE09

A6

DIMMD26/PE10

DIMMD27/PE11

B7

C8

DIMMD28/PE12

D8

A7

DIMMD29/PE13

DIMMD30/PE14

DIMMD31/PE15

MA00

MA01

MA02

MA03

MA04

MA05

MA06

MA07

MA08

MA09

MA10

MA11

MA12

D9

B8

TP237

A8

C9

B9

A9

TP235

C10

A10

B10

D10

TP236

D11

A11

B11

TP234

EEPROM

V18

SDA

UPD800268F1-011-MN9-A

SCL

T17

TP287

SDCLK0

G4

SDCLK1

F2

TP243

E2

TP214

SDCLK2

TP213

F3

SDCKE

TP240

B12

SDCSN0

C12

TP280

SDCSN1

A13

TP278

SDCSN2

TP281

B13

SDRASN

D12

TP273

SDCASN

TP241

A14

SDWEN

TP272

C11

SDBA0

SDBA1

A12

TP238

TP275

D13

SDDQM0

SDDQM1

C13

TP283

B14

TP276

SDDQM2

SDDQM3

SDDQM4

SDDQM5

SDDQM6

SDDQM7

A15

TP274

C14

TP277

D14

TP284

B15

TP279

A16

TP244

TP271

R151

R150

R149

82

33

33

90MHz

90MHz

90MHz

2-3B

2-7D

2-7D

SD_CLK0

SD_CLK1

SD_CLK2

R236

100

SD_CKE

2-3B

R260

R133

R122

68

33

33

45MHz

45MHz

45MHz

2-3B

2-7D

2-7D

SD_CS0_N

SD_CS1_N

SD_CS2_N

R123

R248

47

47

45MHz

45MHz

2-3B/2-7D

2-3B/2-7D

SD_RAS_N

SD_CAS_N

R121

47

45MHz

2-3B/2-7D

SD_WE_N

R247

R124

R263

100

R246

47

47

47

45MHz

45MHz

100kHz

2-3B/2-7C

2-3B/2-7C

SD_BA0

SD_BA1

6

5

8

7

7

6

5

6

5

8

8

7

R250

R258

R262

R259

R251

R120

R249

R116

10

10

47

47

47

47

47

47

1

2

RA38

47

3

4

2

3

1

RA36

47

3

4

4

1

2

RA37

47

45MHz

45MHz

45MHz

45MHz

45MHz

45MHz

45MHz

45MHz

SD_ADR[0]

SD_ADR[1]

SD_ADR[2]

SD_ADR[3]

SD_ADR[4]

SD_ADR[5]

SD_ADR[6]

SD_ADR[7]

SD_ADR[8]

SD_ADR[9]

SD_ADR[10]

SD_ADR[11]

SD_ADR[12]

2-3B/2-7B

2-3B/2-7B

2-7B

2-7B

2-7B

2-7B

2-7B

2-7B

SD_DQM0

SD_DQM1

SD_DQM2

SD_DQM3

SD_DQM4

SD_DQM5

SD_DQM6

SD_DQM7

2-1A

45MHz

SD_ADR[12-0]

2-6E

EEPROM_CLK

1 2 3

SGND

C208

C22P

TP502

2

R243

100

X3

C209

C22P

VBDN

5-4A

1

SMD-49

23.46178MHz

TP220

R244

1M

TP503

5-6C

PWM_TNRSEN

TNR_SEN

SGND

5-6C

10k R234

5-7B (ASIC def

REG_SOL

5-7A

T1_SOL

MP_SOL

5-7B

5-7E

DX_SOL

5-5D

LT1_SOL

LT2_SOL

5-5E

R239 10k

+3.3V

5-2D

HVVCLN

5-1E

FAN_MAIN_12V

+3.3V

5-1E (ASIC def

FAN_MAIN_24V

R240 100

R252 10k

TP41

TP18

)

TP187

)

TP407

TP242

TP219

TP247

P1

R1

W1

J1

K3

K2

H1

J3

J2

G1

J4

H2

MAIN ASIC(2/3)

U6

VXOUT

VXIN

VBDN

IDADC6/PB06

IDADC7/PB07

IDADC8/PF04

M1

K4

IDINT/PB14

IDBGNT/PB09

L3

IDRACK/PB13

L4

IDDREQ/PB10

ID_BUS

IDADC0/PWMA1/PB00

IDADC1/PWMA2/PB01

IDADC2/PWMA3/PB02

IDADC3/PWMA4/PB03

IDADC4/PWMA5/PB04

IDADC5/PB05

APLL_AVDD

U1

APLL_AGND

V1

IDCLK

IDRSTN/PWMA0

H3

H4

TP245

TP22

TP223

C120

C103

VDON0/PA08

W2

U4

VDON1/PA09

TP6

TP250

R500

CAL0/PA10/VIB0

CAL1/PA11/VIB1

M4

N4

TP30

ENB0/PA12/VIOP0

ENB1/PA13/VIOP1

LDHALF/PA14/TLED

33

TP215

V2

R4

TP29

R253 10k

TP249

(ASIC def

U3

TP340

IDBREQ/PB08

K1

L1

IDRREQ/PB12

L2

IDDACK/PB11

TP218

R241

33

L9

(1608)

C119

C106

(2012)

150MHz

)

5-4A

2-6E

5-4B

5-4B

SGND

5-1E

5-4C

4-1B

5-1F

5-1F

R156

1 (1608)

+1.5V

(VIDEO PLL

SGND

VDON

DIMM_SPD_CLK

VENBN

LDHALF

TNRLED

PNLLED3

LAN_RST

FAN_PS_24V

FAN_PS_12V

)

LD_MON

5-5B

THM_CENTER

5-2B/5-7D

THM_EDGE

5-2B/5-7D

FB_VCLN

FB_DEV

FB_GRID

5-2C

5-2C

5-2C

W18

Y17

W17

W16

Y16

MAIN ASIC(3/3)

U6

AI0/BD_SMP

Y18

AI1

AI2

AI3/FB_VCLN

AI4/FB_DEV

AI5/FB_GRID

HEATERON2

PNLSW0

PNLLED0

PNLSW1

5-1A

5-4C

5-4C

5-4C

DEBUG_RXD

PHOTO_RXD

4-7E

4-7F

TP25

High Speed UART1

G2

HS1RXD/HEAT2 HS1TXD/HEAT1

F1

High Speed UART2/PIO

PCLK/PC11

P2

HS2RXD/PDI HS2TXD/PDO

V4

U5

TP24

TP23

High Speed UART3/PIO

W20

U18

HS3RXD/PC03

HS3CTS/PC05

Y19

DBGRXD

W19

PHRXD

HS3TXD/PWMA7

HS3RTS/PWMA8

Debug UART

DBGTXD

PHTXD

Y20

R17

U16

U17

TP21

5-1A

5-4C

5-4C

5-2C

5-4C

4-6E

4-6F

HEATERON1

PNLLED1

PNLLED2

GRIDC

PNLLED4

DEBUG_TXD

PHOTO_TXD

FB_TRCCV

FB_TR

5-2D

5-2D

TMODEN

CH2

+3.3V

CDCC_DATA

CDCC_INT_N

CDCC_REQ_N

USB_VCC

USB_DATA_P

USB_DATA_M

4-8E

4-8D

4-8D

DCFGS

SCNFGS

HTLIMITN

4-8B

4-8B

4-8B

C249

C101

6-7C

6-5D

5-3B

SGND

UGND

22.5MHz

22.5MHz

22.5MHz

V3

Y2

U6

CDCC_DATA

CDCC_INTN

CDCC_REQN

CDCC I/F

CDCC_CLK

CDCC_RSTN

Y1

V5

TP224

R154

10

45MHz

4-8B

4-8B

CDCC_CLK

CDCC_RST_N

USB

USB_PVDD

Y14

VBUS/PC14

(+3.3V input)

USB_PVSS

V11

USB_RPU USB_AVDD

R266

1.5k

1%(F)

TP290

USB_AVSS

T10

T9

USB_DP

USB_DM

USB_VDD331

R265

39

T11

TP288

T8

R125

1.6k

1%(F)

R254

39

TP251

Y11

TP291

USB_RSDP

USB_RSDM

USB_RREF

( )

USB_GND1

USB_VDD151

USB_GND2

USB_COM

DC MOTOR CTL / PIO

R2

DCFGS/PC08 DCFR/VS/PC06

V8

W8

W11

Y12

Y8

Y9

U11

W10

U8

T2

T1

TP221

N3

DCCTL/PC07

SCANER MOTOR CTL/PIO

SCNFGS/PC10 SCNCTL/PC09

P3

TP615

TP209

TP253

C233

C87

C103

C103

C101

C103

C246

C103

(Digital

SGND

UGND

R235

33

L18

C234

C106

(2012)

C86

(1608)

C103

+3.3V

(Digital

SGND

+1.5V

C82

C104

)

)

6-5B

6-5B

6-5D

R256

1 (1608)

+1.5V

C81

(PLL

C104

UGND

TP259

)

C88

C106

(2012)

L7

(1608)

BLM18PG300SN1B

+3.3V

0

(Analog

SGND

L6

(1608)

UGND

TP256

DCFR

DCCTL

SCNCTL

+3.3V

N2

HEATER CTL/PIO

HTLMTN/PC13 RLYOFFN/PC12

N1

TP210

5-1A

RLYOFFN

HVPS/PIO

REV0/PWMDEV

REV1/PWMCHG

REV2/PWMVCLN

REV3/PWMTRCC

REV4/EXCSN2BN

CPU/JTAG

M3

W4

TP216

W3

M2

TP252

TP222

V19

TP217

TP20

B20

PLL_AVDD

5-4C

TP315

C67

C103

PLL_AGND

B19

PNLLED5

L5 (1608)

BLM18PG300SN1B

R104

1 (1608)

C66

C106

(2012)

R147 6.8k

R153 1k

+1.5V

SGND

R238 5.6k

R255 1

R242 0

R237 1

SGND

)

5-2D

5-2D

5-2D

5-2D

SGND

SGND

SGND

HVPWMDEV

HVPWMCHG

HVPWMTRCV

HVPWMTRCC

SGND

JTAG_RST

4-5E

B18

JTRST NTRC_CLK

D16

4-5E

NTRC_CLK

JTAG_CK

JTAG_MS

JTAG_RMODE/BKTGIO

JTAG_DI

4-5E

4-5E

4-5E

4-5E

A18

B17

A17

C15

JTCK

JTMS

NTRC_DATA0

C18

A20

NTRC_DATA1

NTRC_DATA2

NTRC_DATA3

A19

D15

RMODE_BKTGIO

JTDI

UPD800268F1-011-MN9-A

NTRC_END

C17

C16

JTDO

4-5F

4-5F

4-5F

4-5F

4-5E

4-5E

NTRC_DATA0

NTRC_DATA1

NTRC_DATA2

NTRC_DATA3

NTRC_END

JTAG_DO

TP226

W15

Y15

W5

Y5

Y7

W7

AI6

AI7/FB_TR

TSTMODEN

TSTCLK

TMC1

TMC2

AD_AVDD

V17

AD_AGND

V14

AD_AVREFP

V16

AD_AVREFM

U14

T18

V13

W14

W13

L16

TEN

TAPC_NWIRE_SEL

THMODE

NOTAP_TEST_SEL

BUNRI

VDD3_M16

VDD3_J16

VDD3_D17

M16

J16

D17

VDD3_E12

E12

E9

VDD3_E9

M10

M11

M12

J9

K9

L9

M9

J10

K10

L10

L11

K11

Y10

V10

U10

W9

V9

U9

L12

K12

J12

J11

GND_J9

GND_K9

GND_L9

GND_M9

GND_M10

GND_M11

GND_M12

GND_L12

GND_K12

GND_J12

GND_J11

GND_J10

GND_K10

GND_L10

GND_L11

GND_K11

GND_W9

GND_V9

GND_U9

GND_Y10

GND_V10

GND_U10

UPD800268F1-011-MN9-A

GND_E6

GND_N16

E6

F5

GND_F5

GND_H5

GND_T15

GND_R16

H5

GND_L5

GND_V15

L5

N5

GND_N5

GND_R3

GND_U12

GND_T12

R3

GND_R5

GND_V12

R5

T6

GND_T6

GND_V7

GND_W12

V7

W12

V12

U12

T12

V15

T15

R16

N16

H16

GND_H16

GND_F16

F16

GND_E15

E15

E13

GND_E13

GND_E8

E8

VDD_E5

E5

E7

VDD_E7

VDD_G5

G5

VDD_U2

U2

P5

VDD_P5

VDD_P4

VDD_E14

VDD_E11

P4

VDD_T5

VDD_E16

T5

T4

VDD_T4

VDD_U7

VDD_K16

VDD_G16

U7

VDD_T7

VDD_P16

T7

Y13

VDD_Y13

VDD_T14

VDD_T16

T14

T16

P16

K16

G16

E16

E14

E11

E10

VDD_E10

VDD3_J5

VDD3_K5

VDD3_M5

J5

K5

M5

VDD3_T3

VDD3_V6

T3

V6

VDD3_U13

VDD3_T13

VDD3_U15

U13

T13

U15

CODE

NAME

4 5 6 7

C247

C103

A3.3V

SGND

A3.3V

SGND

C221

C103

C230

C103

C245

C103

+1.5V

C222

C103

C229

C103

SGND

+1.5V

SGND

+1.5V

C227

C103

C248

C103

SGND

+1.5V

C241

C103

SGND

+1.5V

SGND

C238

C103

+1.5V

SGND

+1.5V

C237

C103

SGND

C225

C103

+3.3V

SGND

C226

C103

C244

C103

+3.3V

C228

C103

C243

C103

SGND

+3.3V

SGND

C240

C103

C239

C103

+3.3V

SGND

+3.3V

C236

C103

C242

C103

SGND

C223

C103

+3.3V

SGND

SGND

B512210CIR (1/7)

8

A

B

C

D

E

F

A-1

Confidential

APPENDIX

Appendix 1. Main PCB Circuit Diagram, HL-5240/5250DN/5270DN/5280DW (2/7)

1

2 3 4 5 6 7 8

A

B

C

D

E

F

SDRAM,SODIMM,EEPROM

SD_ADR[12-0]

1-3E

45MHz

IMA[12-0]

45MHz

SD_ADR[0]

SD_ADR[1]

SD_ADR[2]

SD_ADR[3]

SD_ADR[4]

SD_ADR[5]

SD_ADR[6]

SD_ADR[7]

SD_ADR[8]

SD_ADR[9]

SD_ADR[10]

SD_ADR[11]

SD_ADR[12]

TP182

TP189

TP120

TP121

TP119

TP118

TP117

TP176

TP177

TP179

TP143

TP144

TP188

R219

R218

R226

R225

6

5

8

7

8

7

6

5

@R217

47

47

47

47

47

3

4

1

2

RA30

47

TP145

TP56

TP57

TP142

TP58

TP59

TP55

TP77

3

4

1

2

RA29

47

TP76

TP54

TP75

TP74

TP80

IMA[0]

IMA[1]

IMA[2]

IMA[3]

IMA[4]

IMA[5]

IMA[6]

IMA[7]

IMA[8]

IMA[9]

IMA[10]

IMA[11]

IMA[12]

SD_CS0_N

SD_RAS_N

SD_CAS_N

SD_WE_N

SD_DQM0

SD_DQM1

SD_CLK0

SD_CKE

SD_BA0

SD_BA1

45MHz

1-3D

1-3D/7D

45MHz

45MHz

TP42

TP181

1-3D/7D

1-3D/7D

45MHz TP131

TP132

45MHz

1-3E/7B

45MHz

1-3E/7B

TP147

TP116

90MHz

1-3D

1-3D

TP133

TP211

1-3D/7C

1-3E/7C

45MHz

45MHz

TP122

TP178

R207 0

R228

47

R227 47

R229 47

R216

0

R215 47

R214

47

R230 47

R224

47

SD_D[15-0]

1-1C

SD_D[0]

SD_D[1]

SD_D[2]

SD_D[3]

TP198

TP195

TP192

SD_D[4]

SD_D[5]

SD_D[6]

SD_D[7]

TP197

TP196

TP194

SD_D[8]

SD_D[9]

SD_D[10]

SD_D[11]

TP193

TP190

TP173

TP171

TP170

SD_D[12]

SD_D[13]

TP167

SD_D[14]

SD_D[15]

TP168

TP165

TP164

TP162

8

7

6

5

6

5

8

7

8

7

6

5

6

5

8

7

1

2

RA35

33

3

4

3

4

1

2

RA34

33

3

4

1

2

RA33

33

3

4

1

2

RA32

33

TP141

TP140

TP139

TP138

TP136

TP137

TP135

TP94

TP115

TP172

TP114

TP169

TP112

TP166

TP111

TP163

DMD[8]

DMD[9]

DMD[10]

DMD[11]

DMD[12]

DMD[13]

DMD[14]

DMD[15]

DMD[0]

DMD[1]

DMD[2]

DMD[3]

DMD[4]

DMD[5]

DMD[6]

DMD[7]

1 2 3

A

45MHz

DMD[15-0]

TP79

TP78

IMA[0]

IMA[1]

IMA[2]

IMA[3]

IMA[4]

IMA[5]

IMA[6]

IMA[7]

IMA[8]

IMA[9]

IMA[10]

IMA[11]

IMA[12]

TP43

TP129

TP82

TP83

TP146

TP113

TP81

SDRAM(128Mbit/256Mbit)

19

18

17

16

@U11

CS

RAS

CAS

WE

15

39

LDQM

UDQM

VDD1

VDD14

VDD27

VDDQ3

VDDQ9

VDDQ43

VDDQ49

3

9

43

49

1

14

27

38

37

CLK

CKE

20

BA0

21

BA1

VSS28

VSS41

VSS54

A12/NC6

VSSQ12

VSSQ46

VSSQ52

28

41

54

6

12

46

52

23

24

25

26

29

30

31

32

33

34

22

35

36

40

TP84

2

DQ0

4

TP51

DQ1

5

TP50

A0 DQ2

7

TP49

A1 DQ3

8

TP48

A2

A3

DQ4

DQ5

10

TP47

11

TP46

A4 DQ6

13

TP45

A5 DQ7

A6

A7

DQ8

DQ9

42

TP44

44

TP85

45

TP86

A8 DQ10

47

TP87

A9 DQ11

A10/AP

A11

DQ12

DQ13

48

TP88

50

TP89

51

TP90

A12/NC36 DQ14

NC DQ15

K4S281632F-UC75

53

TP91

TP93

8

7

6

5

8

7

6

5

6

5

5

8

7

8

7

6

3

4

1

2

RA25

22

3

4

1

2

RA26

22

1

2

RA23

22

3

3

4

4

1

2

RA22

22

0.5

+3.3V

SGND

DMD[0]

DMD[1]

DMD[2]

DMD[3]

DMD[4]

DMD[5]

DMD[6]

DMD[7]

DMD[8]

DMD[9]

DMD[10]

DMD[11]

DMD[12]

DMD[13]

DMD[14]

DMD[15]

4 5

DMD[15-0]

DMD[0]

DMD[1]

DMD[2]

DMD[3]

DMD[4]

DMD[5]

DMD[6]

DMD[7]

DMD[0]

DMD[1]

DMD[2]

DMD[3]

DMD[4]

DMD[5]

DMD[6]

DMD[7]

DMD[0]

DMD[1]

DMD[2]

DMD[3]

DMD[4]

DMD[5]

DMD[6]

DMD[7]

DMD[0]

DMD[1]

DMD[2]

DMD[3]

DMD[4]

DMD[5]

DMD[6]

DMD[7]

DMD[8]

DMD[9]

DMD[10]

DMD[11]

DMD[12]

DMD[13]

DMD[14]

DMD[15]

DMD[8]

DMD[9]

DMD[10]

DMD[11]

DMD[12]

DMD[13]

DMD[14]

DMD[15]

DMD[8]

DMD[9]

DMD[10]

DMD[11]

DMD[12]

DMD[13]

DMD[14]

DMD[15]

DMD[8]

DMD[9]

DMD[10]

DMD[11]

DMD[12]

DMD[13]

DMD[14]

DMD[15]

144PIN SO-DIMM

CN12

83

85

87

89

93

95

97

99

DQ16

DQ17

DQ18

DQ19

DQ20

DQ21

DQ22

DQ23

121

123

125

127

131

133

135

137

DQ24

DQ25

DQ26

DQ27

DQ28

DQ29

DQ30

DQ31

DQ0

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

DQ7

13

15

7

9

3

5

17

19

37

39

41

43

47

49

51

53

DQ8

DQ9

DQ10

DQ11

DQ12

DQ13

DQ14

DQ15

90

94

96

98

100

84

86

88

DQ48

DQ49

DQ50

DQ51

DQ52

DQ53

DQ54

DQ55

122

124

126

128

132

134

136

138

DQ56

DQ57

DQ58

DQ59

DQ60

DQ61

DQ62

DQ63

14

16

18

20

8

10

4

6

DQ32

DQ33

DQ34

DQ35

DQ36

DQ37

DQ38

DQ39

38

40

42

44

48

50

52

54

DQ40

DQ41

DQ42

DQ43

DQ44

DQ45

DQ46

DQ47

SD_ADR[0]

SD_ADR[1]

SD_ADR[2]

SD_ADR[3]

SD_ADR[4]

SD_ADR[5]

SD_ADR[6]

SD_ADR[7]

SD_ADR[8]

SD_ADR[9]

SD_ADR[10]

SD_ADR[11]

SD_ADR[12]

R220

4.7k

EEPROM_DATA

DIMM_SPD_CLK

1-1F

1-6A

SD_DQM0

SD_DQM2

SD_DQM1

SD_DQM3

SD_DQM4

SD_DQM6

SD_DQM5

SD_DQM7

1-3E/3B

1-3E

1-3E/3B

TP248

1-3E

1-3E

1-3E

1-3E

1-3E

TP268

TP286

TP246

TP174

TP175

EEPROM_CLK

1-3F

SD_BA0

SD_BA1

1-3D/3B

1-3E/3B

SGND

SD_CS1_N

SD_CS2_N

1-3D

1-3D

SD_RAS_N

SD_CAS_N

1-3D/3B

1-3D/3B

SD_WE_N

1-3D/3B

TP130

TP180

45MHz

45MHz

45MHz

45MHz

45MHz

SD_CLK1

1-3D

SD_CLK2

1-3D

+3.3V

TP108

TP616

90MHz

TP184

+3.3V

90MHz

TP183

TP285

TP124

TP185

TP134

TP186

TP92

TP128

TP125

TP127

R223

100

TP126

TP110

45MHz

45MHz

144PIN SO-DIMM

CN12

23

DQMB0

25

DQMB1

45MHz

45MHz

115

117

DQMB2

DQMB3

45MHz 24

45MHz 26

DQMB4

DQMB5

45MHz

45MHz

116

118

DQMB6

DQMB7

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10/AP

A11

A12

A13,DSP

104

105

109

111

112

70

72

29

31

33

30

32

34

103

106

110

BA0

BA1

69

71

65

66

67 nCS0 nCS1 nRAS nCAS nWE

61

62

74

68

CK0

CKE0

CK1

CKE1

59

60

73

77

80

57

58

78

79

NC/CB7

NC/CB0

NC/CB4

NC/CB1

NC/CB5

NC

NC,nMWAIT/CB2,nMWAIT

NC,nMIRQ/CB6,nMIRQ

NC/CB3

141

142

SDA

SCL

DMM3-RS144A2B-13

16kbits EEPROM

C203

C103

R222

100

TP109

@U13

8

VCC

6

SCL

5

SDA

7

TEST

VSS

4

A0

1

A1

2

A2

3

M24C16-WMN6TP

SGND

+3.3V

SGND

+3.3V

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

+3.3V

SGND

SGND

C130

C104

144PIN SO-DIMM

CN12

11

VDD

1

12

VSS

VDD

C139

C104

2

27

VSS

VDD

C129

C104

21

28

VSS

VDD

C138

C104

22

VSS

45

VDD

C128

C104

35

46

VSS

VDD

C141

C104

36

63

VSS

VDD

C127

C104

55

64

VSS

VDD

C137

C104

56

82

VSS

VDD

C136

C104

76

81

VSS

VDD

C126

C104

75

101

VSS

VDD

C125

C104

91

102

VSS

VDD

C140

C104

92

113

VSS

VDD

C123

C104

107

114

VSS

VDD

C135

C104

108

129

VSS

VDD

C122

C104

119

130

VSS

VDD

C134

C104

120

143

VSS

VDD

C121

C104

139

144

VSS

VDD

C133

C104

140

VSS

145

FG

SGND

146

FG

DMM3-RS144A2B-13

B

C

D

E

F

6 7

CODE

NAME B512210CIR (2/7)

8

A-2

Confidential

Appendix 1. Main PCB Circuit Diagram, HL-5240/5250DN/5270DN/5280DW (3/7)

1 2 3 4 5 6

A

B

C

ROM, Reset IC, Board id

ROM1

FLASH

(64/32Mbit)

1-3A

ROM1_CS_N

1-3A/3A/4-1A

IO_WR_N

TP312

IO_RD_N

1-3A/3A/4-1A

26

11

28

15

@U14

CE

WE

OE

RY/BY

BYTE

RESET_N

ADR[1]

ADR[2]

ADR[3]

TP404

47

12

@R267 1k

TP405

25

24

RESET

23

22

A0

A1

A2

ADR[4]

ADR[5]

ADR[6]

ADR[7]

ADR[8]

ADR[9]

ADR[10]

ADR[11]

ADR[12]

ADR[13]

ADR[14]

ADR[15]

ADR[16]

ADR[17]

ADR[18]

ADR[19]

ADR[20]

ADR[21]

21

20

19

18

8

7

6

5

4

3

2

1

48

17

16

9

10

VCC

VSS27

VSS46

NC

WR/ACC

37

27

46

13

14

+3.3V

@C253

C104

SGND

A3

A4

A5

29 DATA[0]

DQ0

DQ1

31 DATA[1]

DATA[2]

A6 DQ2

33

35 DATA[3]

A7 DQ3

DQ4

DQ5

38 DATA[4]

A8

A9

40 DATA[5]

DATA[6]

A10 DQ6

42

44 DATA[7]

A11 DQ7

A12

A13

DQ8

DQ9

30

32

DATA[8]

DATA[9]

A14 DQ10

DQ11

DQ12

34

36

DATA[10]

DATA[11]

A15

A16

39 DATA[12]

DATA[13]

A17 DQ13

41

A18 DQ14

43

45

DATA[14]

DATA[15]

A19

A20

DQ15/A-1

MBM29PL32BM90TN-K-E1

+3.3V

+3.3V

ROM0_CS_N

IO_WR_N

IO_RD_N

1-3A

1-3A/2A/4-1A

1-3A/2A/4-1A

FLASH PIN

PIN

9

13

14

15

47

*NC pin

FUJITSU

TOSHIBA

LV type

64M

FUJITSU

DL type

Mirror

64M

32M

A21

ACC

WP

A19

A19

A21

WP/ACC

A19

NC

WP/ACC

Vccq

Vss

RY/BY

Byte

Vcc

16M

A19

NC

NC

OKI

P2ROM

64M

A19

A21

NC

RY/BY RY/BY

Byte Byte

NC

Byte

OKI

P2ROM

32M

A19

NC

NC

NC

Byte

ADR[15]

ADR[16]

ADR[17]

ADR[18]

ADR[19]

ADR[20]

ADR[21]

ADR[22]

ADR[23]

ADR[1]

ADR[2]

ADR[3]

ADR[4]

ADR[5]

ADR[6]

ADR[7]

ADR[8]

ADR[9]

ADR[10]

ADR[11]

ADR[12]

ADR[13]

ADR[14]

+3.3V

TP321

TP380

TP379

MASK ROM

(128/64Mbit)

24

@U16

CE VCC37

VCC38

37

38

27

OE

25

1

BYTE

VSS25

VSS26

26

23

22

A0

A1

VSS47

VSS48

47

48

21

20

10

9

2

15

14

11

13

6

5

A2

A3

19

18

17

16

8

7

4

3

12

36

A4

A5

A6

28

A7 D0

30

A8

A9

D1

D2

32

34

A10 D3

39

A11

A12

D4

D5

41

43

A13 D6

45

A14 D7

29

A15

A16

D8

D9

31

33

A17 D10

35

A18 D11

40

A19

A20

D12

D13

42

44

A21 D14

46

A22 D15/A-1

MR27V12850J-034TN

+3.3V

@C254

C104

SGND

DATA[0]

DATA[1]

DATA[2]

DATA[3]

DATA[4]

DATA[5]

DATA[6]

DATA[7]

DATA[8]

DATA[9]

DATA[10]

DATA[11]

DATA[12]

DATA[13]

DATA[14]

DATA[15]

ROM0

RESET_N

TP424

@R56 1k

32

MIRROR FLASH

(128/64Mbit)

@U15

43

CE VCC

13

WE

34 52

OE VSS52

17 33

RY/BY VSS33

53

BYTE

14 29

RESET VI/0(VCCQ)

TP455

+3.3V

@C251

C104

SGND

+3.3V

TP425

TP408

TP402

TP401

TP400

TP375

TP398

TP418

TP417

TP426

TP427

TP430

TP428

TP431

TP429

TP416

TP414

TP423

TP422

TP419

TP421

TP420

TP415

ADR[1]

ADR[2]

ADR[3]

ADR[4]

ADR[5]

ADR[6]

ADR[7]

ADR[8]

ADR[9]

ADR[10]

ADR[11]

ADR[12]

ADR[13]

ADR[14]

ADR[15]

ADR[16]

ADR[17]

ADR[18]

ADR[19]

ADR[20]

ADR[21]

ADR[22]

ADR[23]

SGND

31

26

25

24

A0

A1

A2

A3

NC27

NC28

NC30

27

28

30

12

15

2

1

56

55

23

22

21

20

10

9

8

7

6

5

54

19

4

3

A4

A5

A6

A7

WP/ACC

16

18

11

A8

A9

A10

A11

A12

A13

A14

A15

A16

A17

A18

A19

A20

A21

A22

A23

A24

DQ0

DQ1

35

37

DQ2

DQ6

39

41

DQ3

DQ4

DQ5

44

46

48

50

DQ7

DQ8

36

38

DQ9

DQ10

40

42

DQ11

DQ12

45

DQ13

47

49

DQ14

51

A25 DQ15/A-1

MBM29PL64LM-10PCM

SGND

+3.3V

TP348

TP350

TP349

TP307

TP305

TP344

TP345

TP346

TP310

TP309

TP308

TP306

TP304

TP303

TP302

TP342

DATA[0]

DATA[1]

DATA[2]

DATA[3]

DATA[4]

DATA[5]

DATA[6]

DATA[7]

DATA[8]

DATA[9]

DATA[10]

DATA[11]

DATA[12]

DATA[13]

DATA[14]

DATA[15]

D

E

F

ADR[24-1]

1-3B/4-1D

DATA[15-0]

1-1B/4-1E

SGND

ADR[1]

ADR[2]

10k

R282

10k

10k

R300

R301

ADR[3]

ADR[4]

ADR[5]

ADR[3]

ADR[4]

ADR[5]

10k

10k

10k

R299

R298

R297

ADR[6]

ADR[7]

ADR[8]

ADR[6]

ADR[7]

ADR[8]

10k

10k

10k

R295

R294

R293

ADR[9]

ADR[10]

ADR[11]

ADR[9]

ADR[10]

ADR[11]

10k

10k

R292

R291

ADR[12]

ADR[13]

ADR[12]

ADR[13]

10k R290

ADR[14] ADR[14]

10k

10k

10k

10k

10k

10k

10k

10k

10k

10k

10k

10k

10k

10k

R93

R48

R88

R46

R87

R44

R86

R43

R39

R76

R38

R75

R37

R74

10k

R289

ADR[16]

10k

R276

ADR[17]

ADR[15]

ADR[16]

ADR[17]

10k R36

10k

R35

10k

R277

10k

R85

ADR[18]

ADR[19]

10k R42

10k

10k

R80

R296

ADR[20]

ADR[21]

10k @R83

10k

@R306

ADR[22]

ADR[23]

ADR[20]

ADR[21]

ADR[22]

ADR[23]

10k

10k

10k

10k

R79

R40

@R81

@R305

ADR[24]

TP413

10k

R304

+3.3V

+3.3V

SGND

C55

C103

RESET IC

2

TP356

3

U4

VDD

CD

OUT

4

C54

C103

1

VSS

S-80928CLNB

TP301

1-1A/2A/5A

RESET_N

1 2 3 4 5 6

A-3

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7 8

A

7

B

C

D

E

F

CODE

NAME B512210CIR (3/7)

8

Confidential

APPENDIX

Appendix 1. Main PCB Circuit Diagram, HL-5240/5250DN/5270DN/5280DW (4/7)

1

2 3 4 5 6 7 8

A

B

C

D

E

F

LAN I/F, CDCC I/F, USB I/F, Debug Serial I/F

SGND

LAN_CS_N

1-3A

@C27

C8P

@C30

C10P

TP384

IO_RD_N

IO_WR_N

LAN_INT

LAN_RST

1-3A/3-2A/3-3A

1-3A/3-2A/3-3A

@R96

100

1-1A

1-6B

TP353

TP351 @R97

10k

@X1

SMD-49

25.00MHz

TP504

SGND

@R283

100

@R58

330

+3.3V

SGND

FG2

TP435

92

93

@C255

C102

TP386

74

TP357

SGND

76

9

71

73

75

84

6

@U1

XTAL1

5

94

72

PME

70

TP385

@R95

10k

+3.3V

LGND

@C33

C104

@C32

C104

@C59

C104

@C60

C104

XTAL2 nCS nRD nWR

IRQ nRESET

SPEED_SEL

FIFO_SEL

EXRES1

RBIAS

87

10

TPO+

TPO-

TPI+

TPI-

GPIO0/nLED1

GPIO1/nLED2

GPIO2/nLED3

79

78

83

82

@R284 12.4k

TP388

TP433

@R307 12k

1%(F)

TP391

TP390

98

Speed

99

Link&Activ

100

Full Duplex

TP436

4A

LGND

SGND

LAN_LEDA_N

LAN_LEDB_N

SGND

10k

SGND SGND

LAN

@CN5

12 FG

11 FG

@R91

49.9

L3.3V

(2012)

@R60

(2012)

@R62

49.9

(2012)

10

1%(F)

16VDC (1005)

10%(B)

C223

LAN_LEDA_N

2B

@R308

100

+3.3V

@C31

LGND

(1608)

@C43

C10P

@C44

C682

(2012)

49.9

@R90

@C45

(2012)

49.9

@R89

C682

+3.3V

LAN_LEDB_N

2B

@R98 100

(1608)

7 LED1_C

8 LED1_A

1 TCT

2 TD+

3 TD-

4 RD+

5 RD-

6 RCT

10 LED2

9 LED2 yellow orange green

08B0-1X1T-03-F

(1005)

25VDC

10%(B)

C103

@C257

ATEST

RESERVE71

RESERVE73

RESERVE75

RESERVE84

TP389

TP505

@R57

1M

TP387

TP355

EED/GPO3/nD16BUS

67

EECLK

69

68

EECS/GPO4

R600

10k

TP607

TP352

TP383

SGND

VDD_REF

8

+3.3V

ADR[1]

ADR[2]

ADR[3]

ADR[4]

ADR[5]

ADR[6]

ADR[7]

18

17

16

15

14

13

12

A4

A5

A6

A7

A1

A2

A3 VSS_REF

11

VDD_PLL

7

GND_PLL

4

@C28

C103

SGND

@C260

C106

TP434

@C259

C103

SGND

ADR[24-1]

1-3B/3-1D

VDD_CORE3

3

65

VDD_CORE65

@C52

C106

GND_CORE1

GND_CORE66

1

66

TP381

C612

C103

@C53

C103

SGND

TP438

L3.3V

@L2 (1608)

BLM18PG300SN1B

+3.3V

DATA[15-0]

1-1B/3-1D

DATA[8]

DATA[9]

DATA[10]

DATA[11]

DATA[12]

DATA[13]

DATA[14]

DATA[15]

DATA[0]

DATA[1]

DATA[2]

DATA[3]

DATA[4]

DATA[5]

DATA[6]

DATA[7]

5

8

7

6

6

5

8

7

6

5

6

5

8

7

8

7

1

2

@RA10

0 TP382

3

4

1

2

@RA9

0

3

4

2

3

1

@RA6

0

TP378

TP376

4

2

3

1

@RA1

0

4

TP377

SGND

TP600

TP601

TP602

TP603

TP604

TP605

TP606

59

58

57

64

63

62

D4

D5

D6

D0

D1

D2

D3

56

53

52

51

D7

D8

D9

D10

45

44

43

50

49

46

D11

D12

D13

D14

D15

VDD(D16)

40

39

38

37

VDD(D17)

VDD(D18)

VDD(D19)

VDD(D20)

31

30

29

36

33

32

VDD(D21)

VDD(D22)

VDD(D23)

VDD(D24)

VDD(D25)

VDD(D26)

26

25

24

23

22

21

VDD(D27)

VDD(D28)

VDD(D29)

VDD(D30)

VDD(D31)

LAN9115

AVDD81

81

85

AVDD85

AVDD89

AVDD91

89

91

AGND77

77

80

AGND80

AGND86

AGND88

86

88

90

AGND90

VREG

VDD20

VDD28

VDD35

VDD42

VDD48

VDD55

VDD61

VDD97

GND19

GND27

GND34

GND41

GND47

GND54

GND60

GND96

47

54

60

96

19

27

34

41

2

20

28

35

42

48

55

61

97

@C261

C103

SGND

TP359

LGND

OT1

SGND

+3.3V

SGND

CN6

S0V

VDD3

JTAG_CK

JTAG_MS

JTAG_RST

JTAG_DI

JTAG_DO

6

7

4

5

1

2

3

JTAG_RMODE

NTRC_CLK

NTRC_END

NTRC_DATA0

NTRC_DATA1

NTRC_DATA2

NTRC_DATA3

8

9

10

11

12

13

14

BM14B-SRSS-TB

(SMD 16x3.6)

1:TX+

2:TX-

3:RX+

6:RX-

7:not use

8:not use

R270

4.7k

+3.3V

SGND

+3.3V

R132

10k

SGND

CDCC

CN13

ACKn

BUSY

PE

SELECT

FLTn

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

+5V

0V

0V

0V

24

25

26

27

28

29

20

21

22

23

16

17

18

19

30

10

11

12

13

32

0.5

R501 1.5k

SGND

+5.0V

@DA3

DF5A6.8FU(F)

SGND

RA21

1.5k

ATFEEDn

SELINn

INPRIMn

STBn

14

36

31

1

+5.0V

DI1

DI2

DI3

DI4

DI5

DI6

DI7

DI8

7

8

9

5

6

2

3

4

@ZD3

UDZS6.8B

SGND

DF5A6.8FU(F)

@DA4

RA18

2.2k

+5.0V

NC

NC

NC

NC

15

33

34

35

FG

FG

37

38

NC

NC

@DA1DF5A6.8FU(F)

NC

NC

R136

0

SGND

SGND

DF5A6.8FU(F)

SGND

R186

0

@DA2

R188

0

FG1

TP608

TP609

TP610

TP611

TP269

1-4F

1-4F

1-4F

1-4F

1-5F

JTAG_CK

JTAG_MS

JTAG_RST

JTAG_DI

JTAG_DO

+3.3V

TP311

TP282

TP270

R119

10k

1-4F

1-5F

1-5F

JTAG_RMODE/BKTGIO

NTRC_CLK

NTRC_END

TP313

TP612

TP613

TP614

1-5F

1-5F

1-5F

1-5F

NTRC_DATA0

NTRC_DATA1

NTRC_DATA2

NTRC_DATA3

1 2 3 4 5

RA19

2.2k

RA27

33

8

7

6

5

R213

33

SGND

8

7

RA24

100

1

2

6

5

3

4

5

8

7

6

5

7

6

8

RA31

100

1

2

3

3

4

4

1

2

RA28

100

TP150

TP99

RA20

1.5k

3

4

1

2

+5.0V

+5.0V

+3.3V

C202

C103

C196

C103

C192

C103

SGND

C200

C103

CDCC_GA

U12

16

30

1

7

VDD51

VDD57

VDD516

VDD3

15

26

GND15

GND26

TP68

TP53

R212

1.5k

TP72

TP67

TP96

TP98

TP52

TP70

TP66

R208

1k

RSTN/SIN

21

TP64 C191

C101

SGND

R211

INTN

24

TP63

6

5

3

28

ACKN

BUSY

4

PE

SELECT

FLTN

REQN/SOUT

22

CLK/SCK

25

TP62

33

R209

33

TP149

TP60

TP95

TP225

2

29

AFN

27

17

SELINN

INITN

STBN

DATA

23

TP65

R210

33

TP148

1-6D

22.5MHz

1-4D

22.5MHz

1-4D

45MHz

1-6C

22.5MHz

1-4C

CDCC_RST_N

CDCC_INT_N

CDCC_REQ_N

CDCC_CLK

CDCC_DATA

AMC

13

TP69

20

SMC

TP61

SGND

TP97

TP151

TP101

TP73

TP100

TP71

18

D0

19

14

D1

12

D2

D3

11

10

D4

9

D5

D6

8

D7

CDCC-GA

USB

CN7

SGND

DM

2

DP

3

PC_+5V

1

GND

4

SGND

R109

0

FG

6

FG

5

LG5459001

CONNECTOR:UBR24-4K2300

R126

0

SGND

SGND

R108

10k

R107

15k

SGND

DEBUG

@CN20

DBRXD

1

+3.3V

@R184

10k

DBTXD

2

B2B-PH-K-Y(LF)

PHOTO-DEBUG

CN19

PHTXD

1

TP8

1-6C

DEBUG_TXD

U8

PHRXD

2

B2B-PH-K-M(LF)

TP7

R183

10k

1-6C

PHOTO_TXD

1

2

B

A

@U9

VCC

5

1

2

B GND

A Y

TC7SH08FU(F)

(SSOP5)

5V->3.3V Level

3

4

+3.3V

SGND

TP33

VCC

5

GND

Y

3

4

+3.3V

SGND

TP32

1-4C

DEBUG_RXD

1-4C

PHOTO_RXD

SGND

@CN15

1

5V +5.0V

SGND

2

GND

B2B-PH-K-PK(LF)(SN)

CODE

NAME

6 7

TP334

1-4D

USB_DATA_M

1-4D

USB_DATA_P

1-4D

USB_VCC

B512210CIR (4/7)

8

A

B

C

D

E

F

A-4

Confidential

Appendix 1. Main PCB Circuit Diagram, HL-5240/5250DN/5270DN/5280DW (5/7)

1

2 3 4 5 6

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7 8

A

B

C

D

E

F

Other PCB I/F Conector (LVPS HVPS LD PANEL RELAY_F RELAY_R TNR_SEN DX_SOL LT(opt.) )

LVPS

+3.3V

U7

V+

8

RLYOFFN

1-6E

R140 10k

SGND

C105

C102

L8

1

CN8

RELAYOFFN

V-

LM393PT 4

TP161 R139 10k

HEATERON1

1-6C

HEATERON2

1-4C

TP267

SGND

9

CN8

HEATERONN1

5

6

+

-

C205

C102

+5.0V

C206

SGND

C103

HEATER HARD-LIMIT

3.3V

0V HARD LIMIT ON

THM_CENTER

HEATER HARD-LIMIT

3.3V

0V

1-7A/7D

308

295

HARD LIMIT ON

1.2k

1%(F)

1%(F)

THM_EDGE

A3.3V

A3.3V

18k

1-7B/7D

R142

680

1%(F)

R141

18k

1%(F)

C101

TP156

U7

3

+

2

-

TP157

1

LM393PT

SGND

R161

R160

SGND

TP106

U7

7

LM393PT

R607

10k

SGND

B

Q13

4.7k

47k

DTC143ZUA

Q12

4.7k

C

C

E

SGND

SGND

C204

C102

10

CN8

HEATERONN2

+3.3V

R606

10k

HTLIMITN

1-4E

B

SGND

47k

DTC143ZUA

E

SGND

+24V_2

TP1

TP260

TP450

+24V

TP229

TP11 TP451

TP295 TP396

PGND

TP701

TP700 TP702

4

5

CN8

+24V

CN8

+24V

C724

C235

C210

C104

(1608)

2

3

CN8

24VRET

CN8

24VRET

SGND

TP227

TP4 TP373

TP347 TP153

C103

8

CN8

S0V

+3.3V

TP228

TP453

TP15

C100

EEE1AA101SP

C501 10V

( 6.3)

7

CN8

+3.3V

C89

C103

+8.0V

6

CN8

+8V

HVPS

B10B-EH

CN1

22

VCC24 +24V_2

PGND

C9

C104

11

24RET

TP449

R17 100

FB_VCLN

1-7B C72

C102

SGND SGND

C7

C102

21

FB_VCLN

TP397

R13

100

FB_DEV

1-7B

C6

18

FB_DEV

C73

C102

SGND

C102

GRIDC

1-6C

FB_GRID

1-7B

FB_TRCCV

1-7C

FB_TR

1-7C

TP448

TP399

TP446

TP447

C85 C84

C83

C70

R14

R16

R11

R12

100

100

100

100

SGND

+3.3V

ANALOG

ANALOG

ANALOG

1k

19

20

12

13

GRIDC

FB_GRID

FB_TRCCV

FB_TR

VBDN

1-4A

TP28

VDON

1-6A

VENBN

1-6A

LDHALF

1-6A

PNLSW0

1-4C

PNLSW1

1-4C

PNLLED5

1-5E

PNLLED4

1-6C

PNLLED3

1-6B

PNLLED2

1-6C

PNLLED1

1-6C

PNLLED0

1-4C

PWM

PWM

LED

L

H

PORT

(RESET)

TP26 R179 1k

TP27

C115

C102

SGND

R196

4.7k

+3.3V

SGND

R181 1k

C252

C102

R193

0

R192

68k

SGND

LD_MON

1-7A

R178

R180

SGND

R189

0

TP31

4.7k

+5.0V

1k

+3.3V

C101

SGND

C102

HVVCLN

1-4B

HVPWMDEV

1-7E

HVPWMCHG

1-7E

HVPWMTRCC

1-7E

HVPWMTRCV

1-7E

23

16

15

10

14

PWM_VCLN

PWM_DEV

PWM_CHG

PWM_TRCC

/TRCV

TNRLED

1-6B

SGND

Q15

C

B

10k

47k

DTC114YUA

E

SGND

+3.3V

FAN_MAIN_24V

1-4B

TP368

FAN_MAIN_12V

1-4B

TP370

SGND

REG_F_SEN

1-1E

REG_R_SEN

1-1E

PEDG_SEN

1-1E

T1_PE_SEN

1-1E

MP_PE_SEN

1-1E

C101

+3.3V

C3 C2 C4 C5

C8

+3.3V

R280

1k

R72

1k

TP444

TP445

TP442

TP372

TP443

C211

C212

C219

C218

C213

SGND

C102

+24V_2

+24V_2

TP339

C101

R8

R9

R4

R1

R5

R275

+5.0V

R274

10k

820

TP338

TP395

5

QA1

1

0.4

SGND

ZD2

TP369

QA1

4

2

3

IMX17

PGND

(PITCH=15)

BZX85-C11

+24V_2

DA5

A1

C

SDS2838

100

100

100

100

100

C706

C707

C708

C709

C710

SGND

C101

B

Q14

E

A1577

C

1/2W

R67 33

(10mm pitch)

A2

SGND

+3.3V

C1

C103

C19

C102

110mA

(1608)

PGND

8

9

6

5

7

4

17

1

3

REG_FRONT_SEN

REG_REAR_SEN

PEDG_SEN

T1_PE_SEN

MP_PE_SEN

TNRLED

S0V

VCC3.3V

FAN_MAIN

SGND

TP409

LT1_PE_SEN

1-1E

LT1_PEDG_SEN

1-1E

LT2_PE_SEN

1-1E

LT2_PEDG_SEN

1-1E

TP410

TP454

TP456

LT_DET1

1-1E

LT_DET2

1-1F

LT_DET3

1-1F

TP452

TP411

TP412

C102

RA41

1

2

4

3

LT1_SOL

1-4B

LT2_SOL

1-4B

+3.3V

100

8

7

5

6

RA42 68k

RA43

68k

+3.3V

SGND

RA40

1

2

3

100

8

7

6

RA40

4

100

5

RA43

4

68k

5

7B

COVER/VDD5I

SGND

+5.0V

+3.3V

R190

1k

SGND

C101

(200mA)

LD

1

5VI

8

BD

R191

BLM18RK221SN1D

(1608)

3

DATA

6

PWMENB

ANALOG

R194

C185

C175

C103

C173

C103

SGND

C101

L11

L12

L13

L14

L15

L16

0

0

0

0

0

0

C102

SGND

+5.0V

C165

C103

5

LDHALF

100 7

LD_MON

IMSA-9615S-08A-PP-A

PANEL

CN17

7

SW0 /PNLDI

8

SW1

CN18

1

2

3

4

5

6

LED5

LED4

LED3

LED2/PNLDO

LED1/PNLCLK

LED0/PNLRST

9

GND

10

+5V

S10B-PH-K-S(LF)

+24V_2

PGND

SGND

C10

C104

C617

C103

R47

BLM15AG601SN1D

R55

BLM15AG601SN1D

LT(opt)

CN2

2

24V

1

24RET

3

LT1_SOL

10

LT2_SOL

+3.3V

SGND

(1608)

L600

0

2

GND

4

5V

4

3V

5

6

11

12

LT1_PE

LT1_PEDG

LT2_PE

LT2_PEDG

7

8

9

LT_DET1

LT_DET2

LT_DET3

B12B-PH-K-S(LF)

FAN_PS_24V

1-6B

TP364

FAN_PS_12V

1-6B

TP366

C101

R278

1k

R69

1k

SGND

QA2

1

0.4

TP394

TP365

5

IMX17

QA2

6

4

2

3

IMX17

PGND

ZD1

(PITCH=15)

BZX85-C11

110mA

2

FAN_PS

C18

C102

(1608)

PGND

IMSA-9615S-23A-PP

SGND

C102

SGND

SGND

C101

1 2 3 4 5 6

+24V

RELAY_FRONT

CN16

9

+24V

T1_SOL

1-4B

REG_SOL

1-4B

TP37

TP38

R200

R202

470

390

TP10

TP12

D7

1SS355

B

Q9

C

2SC5865

E

B

Q10

C

2SC5865

E

DA6

A1 C

SDS2838

A2

0.5

450mA

625mA

8

7

T1_SOL

REG_SOL

450mA

MP_SOL

1-4B

TP39

R204

470

TP13

B

Q11

C

2SC5865

E

C157 C158 C159

C102

PGND

C101

SGND

SGND

TP14

R166

PNEW_SEN

1-1E

COVER/VDD5I

(to LD POWER)

5A

FRONT_COVER_SEN

1-1E

+3.3V

TP3

TP123

(200mA)

+3.3V

R169

68k

E

SGND

Q8

C

10k

47k

DTC114YUA

B

C160

C102

SGND

PGND

+3.3V

100

R167

68k

C163

C103

L10

(1608)

C168

0

C101

SGND SGND

+5.0V

SGND

+3.3V

C169

C103

TNR_SEN

1-4B

R195

68k

1

LM393PT

U10

+

3

-

2

TP17

TP16

R170

R168

470k

10k

C161

C102

6

4

1

5

2

MP_SOL

PNEW_SEN

F_COV_SEN

+5V

S0V

3

TNR_SEN

IMSA-9615S-09A-PP-A

+5.0V

R205 10k

TP19

R171 10k

PWM_TNRSEN

1-4B

R206

68k

C162

C103

10%

SGND

SGND

C164

C103

10%

SGND

SGND

SGND

U10

5

+

6

-

7

LM393PT

TP40

C186

C103

SGND

U10

V+

8

V-

LM393PT 4

TP441

THM_CENTER

1-7A/2B

THM_EDGE

1-7B/2B

TP440

C103

C69

R63

10k

R29

18k

1%(F)

SGND

SGND

R64

10k

C71

C103

R30

18k

1%(F)

A3.3V

(1608) L1

0

C12

C103

SGND

ANALOG

ANALOG

RELAY_REAR

CN3

4

VDD3

1

S0V

5

6

THM_CENTER

THM_EDGE

C15

C101

C16

C101

PO_SEN

1-1E

DX_UNIT_SEN

1-1E

SGND

TP439

TP437

C224

C102

R61

R59

SGND

+3.3V

R28

68k

100

100

C216

C102

C13

C101

SGND

R27

68k

C14

C101

3

2

PO_SEN

DX_UNIT_SEN

IMSA-9615S-06A-PP-A

SGND SGND

+24V

DX_SOL

@CN14

1

+24V

@D6

1SS355

DX_SOL

1-4B

TP36

SGND

R163 820

R162

10k

TP35

B

@Q7

C

2SD1484K

E

PGND

SGND

0.5

180mA

2

DX_SOL

S2B-PH-K-S(LF) C144

C102

PGND

7

CODE

NAME B512210CIR (5/7)

8

A

B

C

D

E

F

A-5

Confidential

APPENDIX

A

Appendix 1. Main PCB Circuit Diagram, HL-5240/5250DN/5270DN/5280DW (6/7)

1

2 3

REGURATOR, MOTOR DRIVER

B

C

D

4 5 6 7 8

A

1.5V(FOR ASIC)

D5

RB751V-40

REGULATOR

+3.3V

EEE1AA101SP

10V

( 6.3)

C100

SGND

C502

C110

IN

Q6

LD1117DT-R

OUT

ADJ

TP207

R146

C104

1k

TP239

1%(F)

C111

C104

+5.0V

TP5

TP341

TP2

C58

C104

SGND

+8.0V

SGND

C46

C104

5.0V

D3

REGULATOR

RB751V-40

Q5

IN

GND

OUT

LD1117S50

C47

C104

+5.0V

C503

EEE1AA101SP

10V

(

C100

6.3)

SGND

CH1

1.5V

+1.5V

(TO Main ASIC

C504

EEE1AA101SP

10V

( 6.3)

C100

Logic)

SGND

3.3V(Analog 3.3V)

D4

RB751V-40

2

U2

VDD VOUT

3

REGULATOR

TP360

A3.3V

(TO Main ASIC A/D )

4

CE

RQ5RW33B

GND

1

C57

C104

C505

EEE1AA101SP

10V

( 6.3)

C100

SGND

MAIN MOTOR DRIVER

CN4

HU+

HU-

HV+

HV-

HW+

HW-

19

18

17

16

15

14

RA11

2

1

3

R100

R99

4

1k

7

8

5

6

1k

1k

L4 0

S0V

12

L3 0

C34

+5V

13

C103

TP363

TP362

V

V

W

U

U

U

V

FG+

FG-

W

W

5

4

3

2

1

8

7

6

11

10

9

TP361

TP336

TP337

TP335

C103

C606

FG+

7C

7C

FG-

C103

C608

IMSA-9615S-19A-PP-A

TP264

TP298

TP294

TP265

TP293

TP292

SGND

+5.0V

C103

C611

C101

SCANNER MOTOR DRIVER

CN10

14

RA17

2

1k

7

HU+

HU-

13 1 8

HV+

HV-

HW+

HW-

12

11

10

9

R138

R137

4

3

5

6

1k

1k

+5V

8

+5.0V

S0V

7

COILU

COILU

COILV

COILV

COILW

COILW

2

1

4

3

6

5

C103

C104

TP152

TP154

TP103

TP105

TP102

TP104

SGND

C103

C609

C103

C607

TP200

TP199

TP202

TP203

TP204

TP201

C610

C103

IMSA-9615S-14A-PP-A

C101

7A

7B

7B

MAIN_UOUT

DCFR

1-6E

MAIN_VOUT

MAIN_WOUT

DCCTL

1-6E

TP206

R111

56k

1%(F)

C103

C79

C103

C78

C103

C77

13

12

U5

HA1+

HA1-

15

HB1+

14

HB1-

17

HC1+

16

HC1-

25

CW/CCW

OUT1_A

OUT1_B

OUT1_C

29

28

26

RS1

27

TP261 C74

R112

TP263

C102

TP262

21

LP1_1

22

LP1_2

C75

C102

SGND

C506

C221

R92

5B

MAIN_UOUT

5B

MAIN_VOUT

MAIN_WOUT

5B

0.33

PGND

2W 2%(G)

(PITCH=15)

FGO

23

FGS1

24

TP208

10k R257

+3.3V

DCFGS

1-4E

SGND

C103

C90

C103

C91

31

HA2+

30

HA2-

33

HB2+

32

HB2-

OUT2_A

OUT2_B

OUT2_C

RS2

7

9

10

8

1.0

7C

7C

7C

SCNFGS

1-4E

SCANNER_UOUT

SCNCTL

1-6E

SCANNER_VOUT

SCANNER_WOUT

TP212

SGND

+3.3V

R128

100k

1%(F)

35

HC2+

C103

C92

34

HC2-

R144

10k

2

FG2

TP233 C95

R127

100k

1%(F)

C94

C102

SGND

+5.0V

TP231

C102

TP230

C507

C221

SGND

C106

C104

4

5

1

36

18

19

LP2_1

LP2_2

NC6

NC11

6

11

VCC1

VCC2

20

3

VDD1

VDD36

P-GND37

37

38

S-GND18 P-GND38

S-GND19

TB6577FG

TP232

TP266

C93

C104

5D

SCANNER_UOUT

5D

SCANNER_VOUT

5D

SCANNER_WOUT

0.47

PGND

1W

(PITCH=12.5)

C96

50V

C100

+24V

FG+

C76

C104

4C

FG-

4C

C63

TP296

R102

TP299

C104

1.5k

1%(F)

+5.0V

R101 150k

1%(F)

C62

C471

C64

R103

10k

1%(F)

C104

C61

50V

SGND

R113

10k

1%(F)

3

1

U3

4

TA75S01F

TP297

U3

V+

5

V-

TA75S01F 2

+24V_2

C100

PGND

+5.0V

C65

C103

SGND

B

C

D

E E

F

1 2 3 4

A-6

5 6 7

F

CODE

NAME B512210CIR (6/7)

8

Confidential

A

Appendix 1. Main PCB Circuit Diagram, HL-5240/5250DN/5270DN/5280DW (7/7)

1

2 3 4 5 6

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7 8

A

B

C

D

E

F

1 2

U800

WLAN_CS_N

1-3A

IO_RD_N

1-3A/3-2A/3-3A/4-1A

IO_WR_N

1-3A/3-2A/3-3A/4-1A

R803

R804

100

100

TP808

TP809

TP810

WLAN_RST_N

1-6A

WLAN_INT

1-1A

21

20

22

CS

RD

WR

R805 1k

R806

TP811

32

RESET

C800

C104

SGND

TP812

30

INT1

0

TP813

31

INT2

X1in

43

SMD-49 12.00MHz

1

R800

3.3k

X2out

H_PSW1

H_PSW2

H_OC1

H_OC2

44

TP828

35

36

42

41

DATA[15-0]

1-1B/3-1D/4-1E

DATA[8]

4

DATA[9]

3

DATA[10] RA800

2

DATA[11]

1

DATA[12]

4

DATA[13]

3

DATA[14] RA801

2

DATA[15]

1

DATA[0]

DATA[1]

1

RA802

2

DATA[2]

3

DATA[3]

4

DATA[4]

DATA[5]

1

RA803

2

DATA[6]

3

DATA[7]

4

5

6

5

8

5

6

7

33

8

7

8

33

8

7

6

33

7

6

33

5

TP819

63

TP820

64

2

D2

3

D0

D1

D3

5

D4

6

D5

7

D6

TP821

8

10

D7

D8

11

D9

12

D10

TP822

13

15

D11

D12

16

D13

17

D14

18

D15

OTG_DM1

OTG_DP1

49

50

H_DM2

H_DP2

TEST0

23

59

TEST1

TEST2

CLKOUT

46

47

60

38

CP_CAP1

CP_CAP2

53

54

R807

ADR[2]

1-3B/3-1D/4-1D

SGND

100

R809

TP803

10k

TP804

61

62

A0

A1 Vdd_5V

56

24

25

28

29

DREQ1

DREQ2

DACK1

DACK2

Vbus

55

WLAN_DREQ

1-1B

WLAN_DACK_N

1-3B

+3.3V

TP801

+3.3V

R808

10k

WLAN_H_SUSPEND

1-1B

+3.3V

TP800

TP802

+3.3V

SGND

TP805

R810

100

TP806

R816 10k

TP807

Vcc4

4

14

Vcc14

26

Vcc26

40

Vcc40

52

Vcc52

58

Vcc58

R811

TP814

100

R812 100k

TP815

33

34

TP816

39

TP817

45

H_SUSPEND/WAKEUP

D_SUSPEND/WAKEUP

GL

OTGMODE

DGND1

DGND9

1

9

DGND19

DGND27

19

27

DGND37

DGND57

37

57

R813 10k

TP818

48

R814 10k

R815 10k

ID

ISP1362BD

AGND

51

+3.3V

R818

220

TP823

TP824

TP825

TP829

TP826

TP827

TP830

TP831

2

TP841

TP832

TP833

TP838

TP839

TP834

TP835

TP836

R822

TP837

R819

R820

R821

100k

10k

10k

C801

823

R817 10k

SGND

C806

C807

C27P

R825

R823

OT2

5C

+3.3V

C804

C103

VDD_5V

SGND

C27P

100

R826

22

22

10k

SGND

+3.3V

R827

10k

5D

VDD_5V

+3.3V

+3.3V

SGND

+5.0V

SGND

C813

SGND

C104

C812

C47P

L800 (1608)

0

+3.3V

TP843

1

2

SGND

U801

IN OUT

5

3

EN

GND

FLG

R5520H001A-T1-FB

C814

C47P

SGND

TP846

500mA

Wireless LAN

CN800

2

+5V

C815

C104

TP844

TP845

5

GND

4

3

DATA-

DATA+

TP847

FG_WLAN

1

6

FG

FG

BM06B-SRSS-TB

+24V_2

C816

C101

+3.3V

+24V

C817

C101

+24V_2

+24V

C818

C101

+5.0V

3 4

A-7

5 6

B

C

D

E

7

F

CODE

NAME B512210CIR (7/7)

8

Confidential

APPENDIX

Appendix 2. Low-voltage Power Supply PCB Circuit Diagram (100V)

1

2 3

A

4

B

C

D

E

F

5

1 2 3 4

A-8

5

6 7 8

A

B

C

6

D

E

F

7

NAME

Low-voltage PS Circuit (100V)

8

Confidential

D

E

F

B

C

A

Appendix 2. Low-voltage Power Supply PCB Circuit Diagram (200V)

1 2 3 4 5

1 2 3 4

A-9

5

6

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

7 8

A

B

C

6

D

E

F

7

NAME Low-voltage PS Circuit (200V)

8

Confidential

APPENDIX

A

Appendix 3. High-Voltage Power Supply Circuit Diagram

1

2 3 4

B

C

D

E

F

5

1 2 3 4

A-10

5

6 7 8

A

B

C

6

D

E

7

F

NAME High-Voltage PS Circuit

8

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

APPENDIX 4 POINT TO POINT CONNECTION DIAGRAM

RELAY_

FRONT

RELAY_

REAR

DX_SOL

LD

PANEL

WIRELESS

LAN

HL5280DW only

CN16-9

-8

-7

-6

-5

-4

-3

-2

-1

+24V

T1_SOL

REG_SOL

MP_SOL

+5V

PNEW_SEN

TNR_SEN

S0V

F_COV_SEN

CN3-6

-5

-4

-3

-2

-1

THM_EDGE

THM_CENTER

VDD3

PO_SEN

DX_UNIT_SEN

S0V

CN14-2

-1

DX_SOL

+24V

CN18-8

-3

-2

-1

-7

-6

-5

-4

BD

LD_MON

PWNENB

LDFALF

+5V

DATA

GND

+5VI

CN17-10

-9

-8

-7

-6

-5

-4

-3

-2

-1

+5VI

GND

SWI

SW0/ PNLDI

LED0/ PNLRST

LED1/ PNLCLK

LED2/ PNLDO

LED3

LED4

LED5

CN800-6

-5

-4

-3

-2

-1

FG

GND

DATA-

DATA+

+5V

FG

USB

CN7

Parallel

Interface

CN13

LAN

CN5

DIMM

CN12

LT2_PEDG

LT2_PE

LT2_SOL

LT_DET3

LT_DET2

LT_DET1

LT1_PEDG

LT1_PE

+3V

LT1_SOL

+24V

24VRET

CN2-12

-11

-10

-9

-8

-7

-6

-5

-4

-3

-2

-1

HEATERONN1

S0V

+3.3V

+8V

+24V

+24V

24VRET

24VRET

CN8-8

-7

-6

-5

-4

-3

-2

-1

Main PCB

PWM_VCLN

VCC24

FB_VCLN

FB_GRID

GRIDC

FB_DEV

S0V

PWM_DEV

PWM_CHG

/TRCV

FB_TR

FB_TRCCV

24RET

PWN_TRCC

REG_REAR_SEN

REG_FRONT_SEN

MP_PE_SEN

PEDG_SEN

T1_PE_SEN

TNRLED

FAN_MAIN

FAN_PS

VCC3.3V

CN1-23

-22

-21

-20

-19

-14

-13

-12

-11

-18

-17

-16

-15

-10

-9

-8

-7

-6

-5

-4

-3

-2

-1

HU+

HU-

HV+

HV-

HW+

HW-

+5V

S0V

U

U

U

V

V

V

W

W

W

FG+

FG-

CN4-19

-18

-17

-16

-15

-14

-13

-12

-11

-4

-3

-2

-1

-10

-9

-8

-7

-6

-5

HU+

HU-

HV+

HV-

HW+

HW-

+5V

S0V

U

V

W

W

U

V

CN10-14

-13

-12

-11

-5

-4

-3

-2

-1

-10

-9

-8

-7

-6

LT(OPTION)

LVPS

HVPS

MAIN

MOTOR

DRIVER

SCANNER

MOTOR

DRIVER

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Confidential

APPENDIX

APPENDIX 5 GEAR LAYOUT DRAWING

1. HL-5240

LM5016001

EJECTOR

GEAR 16

LM5475001

EJECTOR

GEAR 44SX

LM5052001

REGISTER

GEAR 21

CENTER

LM5053001

REGISTER

GEAR 48

LM5055001

CARRIER

REGISTER

GEAR 159/43

INTERNAL

LM5101001

GEAR 23

LM5461001

REGISTER

DIFFERENTIAL

LM5065001

MP GEAR 55/60

SECTOR

LM5019001

EJECTOR

GEAR 22

LM5048001

FUSER GEAR

39R H/R DRIVE

LM5025001

P/P GEAR 17

CENTER

LM5042001

FUSER GEAR

17/63R

PENDULUM

LM5054001

REGISTOR

GEAR

19 PLANETARY

LM5026001

P/P GEAR

32CARRIER

LM5027001

P/P GEAR 15

PLANETARY

LM5028001

P/P GEAR

147/37

INTERNAL

LM5460001

P/P

LM5070001

T1 GEAR 31/47

DIFFERENTIAL

LM5071001

T1 GEAR 50/45

SECTOR

LM5056001

FEEDER GEAR 21/31

PENDULUM

LM5104001

GEAR 17 (white)

LM5057001

FEEDER GEAR 48

LM5050001

DX GEAR 27/68 L

LM5102001

GEAR 17 (black)

LM5103001

GEAR 20

LM5023001

P/P GEAR 29

CLUTCH CAM

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Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

2. HL-5250DN/ 5270DN/ 5280DW

LM5016001

EJECTOR

GEAR 16

LM5015001

EJECTOR

SWITCH

ARM

LM5016001

EJECTOR

GEAR 16

LM5052001

REGISTER

GEAR 21

CENTER

LM5053001

REGISTER

GEAR 48

CARRIER

LM5055001

REGISTER

GEAR 159/43

INTERNAL

LM5101001

GEAR 23

LM5461001

REGISTER

DIFFERENTIAL

LM5065001

MP GEAR 55/60

SECTOR

LM5013001

EJECT

GEAR 28

SECTOR

LM5019001

EJECTOR GEAR 22

LM5048001

FUSER GEAR

39R H/R DRIVE

LM5025001

P/P GEAR 17

CENTER

LM5042001

FUSER GEAR

17/63R

PENDULUM

LM5054001

REGISTOR

GEAR

19 PLANETARY

LM5026001

P/P GEAR

PLANETARY

LM5028001

P/P GEAR

147/37

INTERNAL

LM5460001

P/P

DIFFERENTIAL

LM5070001

T1 GEAR 31/47

LM5071001

T1 GEAR 50/45

SECTOR

LM5056001

FEEDER GEAR 21/31

PENDULUM

LM5104001

GEAR 17 (white)

LM5057001

FEEDER GEAR 48

LM5050001

DX GEAR 27/68 L

LM5102001

GEAR 17 (black)

LM5103001

GEAR 20

LM5023001

P/P GEAR 29

CLUTCH CAM

A-13

Confidential

APPENDIX

APPENDIX 6 READMARKS

This page provides the retrieve information. It is possible to get the instruction of the subject by just clicking on the link below.

1. Error codes (HL-5270DN/5280DW)

(Refer to “2.2.2 Service calls for HL-5270N/5280DW”, Chapter 4 .)

2. Error message

HL-5240/5250DN

(Refer to “2.1.1 Operator calls for HL-5240/5250DN”, Chapter 4 .)

HL-5270DN/5280DW

(Refer to “2.1.2 Operator calls for HL-5270DN/5280DW”, Chapter 4 .)

3. Reset parts life

HL-5240/5250DN

(Refer to “2. IF YOU REPLACE THE PERIODICAL MAINTENANCE PARTS”, Chapter 6 .)

HL-5270DN/5280DW

(Refer to “2.2 Reset Parts Life Menu”, Chapter 7 .)

4. Paper specification

(Refer to “3.6 Paper”, Chapter 1 .)

5. Machine specification

(Refer to “3. SPECIFICATIONS”, Chapter 1 .)

6. Diameter of rollers

(Refer to “6.2 Diameter of Rollers”, Chapter 4 .)

7. Periodical replacement parts

(Refer to “2.1 Periodical Replacement Parts”, Chapter 3 .)

8. Toner cartridge weight information

(Refer to “3.8 Toner Cartridge Weight Information”, Chapter 1 .)

A-14

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

APPENDIX 7 LOCATION OF THE FERRITE CORE

It is necessary to place the ferrite core correctly in order to comply with the EMI (Electromagnetic interface) standard when assembling. Refer to the following chart as well to know the necessary ferrite core depending on models.

RELAY-FRONT HARNESS AL

FERRITE CORE:16X9X5X0.5

LD HARNESS AL

FERRITE CORE:16X9X5X0.5

1

4

2

3

Main Motor FFC

Polygon Motor FFC

CORE:23.8X15X6.3X

1.1

FERRITE CORE:26.0X9.5X5.0X1.2

A-15

Confidential

APPENDIX

Models

HL-5240 US

HL-5240 CAN

HL-5240 GER

HL-5240 UK

HL-5240 ARL

HL-5240 SWI

HL-5240 SPA/POR

HL-5240 ITA

HL-5240 ISR

HL-5240 CHN

HL-5240 PHL

HL-5240 SAF

HL-5240 CHI

HL-5240 SGP/GULF

HL-5240 KOR

HL-5240 IND

HL-5240 RUS

HL-5240 PAN-NORDIC

HL-5240 BEL/FRA/NL

HL-5240 EEU GENERAL

HL-5240 MOF BEL

HL-5240 CONSIP ITA

HL-5250DN US

HL-5250DN CAN

HL-5250DN GER

HL-5250DN UK

HL-5250DN ARL

HL-5250DN SWI

HL-5250DN SPA/POR

HL-5250DN ITA

HL-5250DN ISR

HL-5250DN CHN

HL-5250DN PHL

HL-5250DN SAF

HL-5250DN SGP/GULF

HL-5250DN IND

HL-5250DN RUS

HL-5250DN PAN-NORDIC

HL-5250DN BEL/FRA/NL

HL-5250DN EEU GENERAL

HL-5255DN-MICR US

HL-5250DN HY GER

HL-5250DN CONSIP ITA

Ferrite Core 1 Ferrite Core 2 Ferrite Core 3 Ferrite Core 4

A-16

Confidential

Models

HL-5270DN GER

HL-5270DN UK

HL-5270DN ARL

HL-5270DN SWI

HL-5270DN SPA/POR

HL-5270DN ITA

HL-5270DN ISR

HL-5270DN PHL

HL-5270DN SAF

HL-5270DN SGP/GULF

HL-5270DN RUS

HL-5270DN PAN-NORDIC

HL-5270DN BEL/FRA/NL

HL-5270DN EEU GENERAL

HL-5280DW US

HL-5280DW CAN

HL-5280DW GER

HL-5280DW UK

HL-5280DW SWI

HL-5280DW GENERAL

HL-5280DW PAN-NORDIC

HL-5250DNT US

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

Ferrite Core 1 Ferrite Core 2 Ferrite Core 3 Ferrite Core 4

A-17

Confidential

APPENDIX

APPENDIX 8 HL-5240L

The Brother HL-5240L is functionally equivalent to the Brother HL-5240.

Refer to the information for the HL-5240 in this manual.

When visiting any Brother support sites, refer to information on the Brother HL-5240L.

<Specifications>

The differences between the HL-5240 and HL-5240L

HL-5240L

Print Speed Up to 24ppm (A4 size)

*1

Starter Toner Cartridge

*2

Approx. 2,000 pages A4 @ 5%coverage

*1 From the standard paper tray and optional paper tray 2.

*2 The toner cartridge supplied with the HL-5240 is able to print approx. 3,500 A4 pages at 5% coverage.

Print Speeds with Various Settings

A4 / Letter size

Media type setting

Transparency, Thin Paper

Plain Paper, Recycled Paper

24 ppm

24 ppm

Thick Paper, Envelopes, Env.Thin 14 ppm

Thicker/Bond Paper, Env.Thick 3 ppm

HL-5240L

Smaller size than A4 or Letter

Media type setting HL-5240L

Transparency, Thin Paper

Plain Paper, Recycled Paper

24 ppm

90 sec 24 ppm Æ 14 ppm

Thick Paper, Envelopes, Env.Thin 14 ppm

Thicker/Bond Paper, Env.Thick 3 ppm

A-18

Confidential

HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL

<Information for the Starter Toner Cartridge>

Toner Cartridge Weight Information

Also refer to “3.9 Toner Cartridge Weight Information”, Chapter 1.

Brand New Toner Cartridge Weight: 629g (± 15g)

Toner Weight at Brand New Toner Cartridge: 100g (± 2.5g)

Toner Cartridge Weight at Toner Near Empty: 606g (± 15g)

Remaining Toner Weight at Toner Near Empty: 77g (± 2.5g)

Toner Cartridge Weight at Toner Life End: 594g (± 15g)

Remaining Toner Weight at Toner Life End: 65g (± 2.5g)

NOTE:

The information shows approximate weight of the toner cartridge and toner.

It is subject to change due to redesign of the machine.

Toner life end mode

Also refer to “3.4.1 Toner life end mode”, Chapter 2.

The upper limit of the drum rotation for the starter toner is 26,400 = 2,400 sheets x 11 rotations.

The following graph shows the number of printable pages in the case of A4 printing.

HL-5240L(Starter (2.0K) toner)

Page/job

Cartridge life

Cartridge life+ON/OFF

Toner empty (5%)

Toner empty (4%)

Toner empty (3%)

Toner empty (2%)

Toner empty (1%)

1 2 3 4 5 6 7 8 9 10 11 12

2,400 3,616 4,352 4,844 5,197 5,462 5,669 5,834 5,970 6,083 6,179 6,261

1,320 2,237 2,912 3,429 3,837 4,168 4,442 4,673 4,869 5,038 5,186 5,315

2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000

2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500

3,333 3,333 3,333 3,333 3,333 3,333 3,333 3,333 3,333 3,333 3,333 3,333

5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000

10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000

Cartridge life = 11a x 2400 / ( 3.6 x (a - 1) + 11 ) a : Page / job

Cartridge life+ON/OFF = ( 11a x 2400 ) / ( 3.6 x (a - 1) + 11 + 9 )

Cartridge life (Mechanical limit) : 2400 ( 1page / job )

20,000

18,000

16,000

14,000

12,000

10,000

8,000

6,000

4,000

2,000

0

1

Cartridge life

Cartridge life+ON/OFF

Toner empty (5%)

Toner empty (4%)

Toner empty (3%)

Toner empty (2%)

Toner empty (1%)

2 3 4 5 6 7

Page / Job

8 9 10 11 12

A-19

Confidential

APPENDIX

New Toner Detection Mechanism

Also refer to “3.4.2 New toner detection mechanism”, Chapter 2.

The starter toner does not have parts for the new toner detection. When turning on the HL-5240L for the first time after shipment, it is premised on that the starter toner cartridge is attached.

Developer Roller Counter Reset 3 (For the starter toner)

Also refer to “Developer Roller Counter Reset”, Chapter 7.

1. Check that the front cover is open.

2. Turn ON the power switch while the

Go

button is held.

3. After all LEDs on the panel are lit, only the

Status

LED goes out.

4. Release the

Go

button and check that all LEDs are out.

5. Press the

Go

button twice. (If the

Go

button is pressed, the

Status

LED is lit. If the

Go

button is released, the LED is out.)

6. Check that

Toner

/

Drum

/

Paper

LEDs are lighted.

7. Press the

Go

button 9 times. (If the

Go

button is pressed, the

Status

LED is lit. If the

Go

button is released, the LED is out.) The mode starts after 2 seconds. (All LEDs are lit for 1 second and the printer returns to the ready status.)

A-20

Confidential

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Key Features

  • Laser
  • 1200 x 1200 DPI
  • A4 28 ppm
  • Total input capacity: 250 sheets Total output capacity: 150 sheets
  • Internal memory: 16 MB 266 MHz

Related manuals

Frequently Answers and Questions

What is the maximum paper capacity of the Brother HL-5250DN Series?
The maximum paper capacity is 300 sheets.
Can the Brother HL-5250DN Series print double-sided?
Yes, it has automatic duplex printing for double-sided printing.
Does the Brother HL-5250DN Series support mobile printing?
Yes, it supports mobile printing for printing from smartphones and tablets.
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