Xerox Phaser 3117 Laser Printer Service Manual

LASER PRINTER

Phaser 3117

x

SERVICE Manual

The keynote of Product

- Speed : 17ppm (Ltr) / 16ppm(A4), 600dpi

- Paper Path : MPF Type Cassette

- Emulation : SPL

- Processor : 150MHz Jupiter4e CPU

- Memory : SDRAM, 8 MB,

- MP Cassette : 150 pages / Face Down

(50 pages)

- Fuser Design : Lamp Type

- I/O : USB1.1

- Machine Life : 50K(pages)

Contents

1. Precautions

1.1 Safety Warning

1.2 Safety Caution

1.3 ESD Precautions

1-1

1-2

1-4

2.1 Product Overview 2-1

2.2 Specifications

2.3 Model Comparison Table

2-1

2-5

3. System Overview

3.1 System Outline

3.2 H/W Structure and Descriptions

3.3 S/W Structure and Descriptions

3.4 Initial Product Installation

3-1

3-7

3-19

3-24

4. Alignment and Adjustments

4.1 Sample Pattern

4.2 Control Panel

4.3 Consumables and Replacement Parts

4.4 LED Status Error Messages

4.5 Periodic Defective Image

4.6 How to use DCU

4.7 Paper Path

4-1

4-2

4-4

4-4

4-5

4-6

4-11

Continued

5. Disassembly and Reassembly

5.1 General Precautions on Disassembly

5.2 Disassembly and Reassembly

6. Troubleshooting

6.1 Checking Symptoms

6.2 Bad discharge

6.3 Malfunction

6.4 Bad software environment

6.5 Bad Image

7. Exploded Views & Parts List

7.1 Exploded Views and Parts List

8.1 System Block Diagram

8.2 System Timing Chart

9. Connection Diagram

9.1 Connection Diagram

10. Schematic Diagram

10.1 Main Board

10.2 Connector Circuit Diagram

10.3 SMPS Circuit Diagram

10.4 HVPS Circuit Diagram

10-1

10-5

10-6

10-7

7-1

8-1

8-2

9-1

5-1

5-2

6-1

6-4

6-8

6-13

6-17

Continued

11. Reference Information

11.1 Troubleshooting Tools

11.2 Acronyms and Abbreviations

11.3 Selecting printer locations

11.4 Sample Tests Patterns

12. Circuit Description

12.1 Engine Controller

11-1

11-2

11-4

11-5

12-1

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1

1. Precautions

The cautions below are items needed to keep in mind when maintaining and servicing.

Please read carefully and keep the contents in mind to prevent accidents while servicing and to prevent the machine from getting damaged.

Precautions

1.1 Safety Warning

(1) Request service by qualified service person.

Service for this machine must be performed by a Qualified Xerox service person. It is dangerous if unqualified service personnel or users try to fix the machine.

(2) Do not rebuild.

Do not attach or change parts discretionary. Do not dissemble, fix of rebuilt it. If so, printer will abnormally work and electric shock or fire may occur.

(3) Laser Safety Statement

The Printer is certified in the U.S. to conform to the requirements of DHHS 21 CFR, chapter 1 Subchapter J for Class 1(1) laser products, and elsewhere, is certified as a Class I laser product conforming to the requirements of IEC 825.

Class I laser products are not considered to be hazardous. The laser system and printer are designed so there is never any human access to laser radiation above a Class I level during normal operation, user maintenance, or prescribed service condition.

Warning >> Never operate or service the printer with the protective cover removed from Laser/Scanner assembly. The reflected beam, although invisible, can damage your eyes. When using this product, these basic safety precautions should always be followed to reduce risk of fire, electric shock, and injury to persons.

Service Manual

1-1

Precautions

1.2 Safety Caution

1.2.1 Noxious Material Precaution

The toner in a printer cartridge contains a chemical material, which may harm human body if it is swallowed.

Please keep children out of reach of the toner cartridge.

1.2.2 Electric Shock or fire Precaution

It is possible to get electric shock or burn by fire if you don't fallow the instructions of the manual.

(1) Use exact voltage. Please use an exact voltage and wall socket. If not, a fire or an electric leakage can be caused.

(2) Use authorized power cord. Do use the power cord supplied with PRINTER. A fire can happen when over current flows in the power cord.

(3) Do not insert many cords in an outlet. A fire can be occurred due to flow over current in an outlet.

(4) Do not put water or extraneous matter in the PRINTER. Please do not put water, other liquid, pin, clip, etc. It can cause a fire, electric shock, or malfunction. If this occurs, turn off the power and remove the power plug from outlet immediately.

(5) Do not touch the power plug with wet hand. When servicing, remove the power plug from outlet. Do not insert or take off it with wet hand. Electric shock can be occurr.

(6) Caution when inserting or taking off the power plug. The power plug has to be inserted completely. If not, a fire can be caused due to poor contact. When taking off the power plug, grip the plug and take it off. If grip the line and pull over, it could be damaged. A fire or electric shock could happen.

(7) Management of power cord. Do not bend, twist, or bind it and place other materials on it. Do not fix with staples. If the power cord gets damaged, a fire or electric shock can happen. A damaged power cord must be replaced immediately. Do not repair the damaged part and reuse it. A repaired part with plastic tape can be cause a fire or electric shock. Do not spread chemicals on the power cord. Do not spread insecticide on the power cord. A fire or electric shock can be happen due to thinner(weak) cover of the power cord.

(8) Check whether the power outlet and the power plug are damaged, pressed, chopped, or blazing fire or not.

When such inferiorities are found, repair it immediately. Do not make it pressed or chopped when moving the machine.

(9) Caution when there is thundering or lightning, and being flash of lightening. It causes a fire or electric shock.

Take the power plug off there is thunder. Do not touch cable and device when thundering and flash of lightening.

(10) Avoid the place where is moisture or has dust. Do not install the printer where lots of dust or around humidifier. A fire can occurred. A plug part need to clean well with dried fabric to remove dust. If water drops are dripped on the place covered with dust, a fire can occurred.

(11) Avoid direct sunlight. Do not install the printer near window where direct contacts to the sunlight. If the machine contacts sunlight long time, the machine cannot work properly because inner temperature of the machine is getting hotter. A fire can occur.

(12) Turn off the power and take off the plug when smoke, strange smell, or sound from the machine. If you keep using it, a fire can be occurred.

(13) Do not insert steel or metal piece inside/outside of the machine. Do not put steel or metal piece into a ventilator. An electric shock could happened.

1-2


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Precautions

1.2.3 Handling Precautions

If you ignore this information, you could harm machine and could be damaged.

(1) Do not install it on different levels, or slanted floor.

Please confirm whether it is balanced or not after installation. If it is unbalanced, an accident can be happened due to the machine falling over.

(2) Be careful not to insert a finger or hair in the rotating unit.

Be careful not to insert a finger of hair in the rotating unit (motor, fan, paper feeding part, etc) while the machine is operating. Once it happens, you could be harmed.

(3) Do not place a pot containing water/chemical or small metals. If they got caught into the inner side of machine, a fire or electric shock can be occurred.

(4) Do not install it where lots of moisture or dust exists or where raindrop reaches. A fire or electric shock can be caused.

(5) Do not place a candlelight, burning cigarette, and etc. on the machine. Do not install it near to heater. A fire can be occurred.

1.2.4 Assembly/Disassembly precaution

When replacing parts, do it very carefully. Memorize the location of each cable before replace parts for reconnecting it afterwards. Memorize. Please perform the steps below before replace or disassembly the parts.

(1) Check the contents stored in the memory. All the information will be erased after replacing main board.

The information needed to keep has to be written down.

(2) Before servicing or replacing electric parts, take off plug.

(3) Take off printer cables and power cord connected to printer.

(4) Use formal parts and same standardized goods when replacing parts.Must check the product name, part cord, rated voltage, rated current, operating temperature, etc.

(5) Do not over-force when release or tighten up the plastic parts.

(6) Be careful not to drop small parts such as screws in the printer.

(7) Be careful not to change the location of small parts such as screws when assembling and disassembling.

(8) Remove dust or foreign matters completely to prevent fire of tracking, short, or etc.

(9) After finished repair, check the assembling state whether it is same as before the repair or not.


1-3

Precautions

1.3 ESD Precautions

Certain semiconductor devices can be easily damaged by static electricity. Such components are commonly called

“Electrostatically Sensitive (ES) Devices”, or ESDs. Examples of typical ESDs are: integrated circuits, some field effect transistors, and semiconductor “chip” components.

The techniques outlined below should be followed to help reduce the incidence of component damage caused by static electricity.

Caution >>Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

1. Immediately before handling a semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, employ a commercially available wrist strap device, which should be removed for your personal safety reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ESDs, place the assembly on a conductive surface, such as aluminum or copper foil, or conductive foam, to prevent electrostatic charge buildup in the vicinity of the assembly.

3. Use only a grounded tip soldering iron to solder or desolder ESDs.

4. Use only an “anti-static” solder removal device. Some solder removal devices not classified as “anti-static” can generate electrical charges sufficient to damage ESDs.

5. Do not use Freon-propelled chemicals. When sprayed, these can generate electrical charges sufficient to damage ESDs.

6. Do not remove a replacement ESD from its protective packaging until immediately before installing it. Most replacement ESDs are packaged with all leads shorted together by conductive foam, aluminum foil, or a comparable conductive material.

7. Immediately before removing the protective shorting material from the leads of a replacement ESD, touch the protective material to the chassis or circuit assembly into which the device will be installed.

8. Maintain continuous electrical contact between the ESD and the assembly into which it will be installed, until completely plugged or soldered into the circuit.

9. Minimize bodily motions when handling unpackaged replacement ESDs. Normal motions, such as the brushing together of clothing fabric and lifting one’s foot from a carpeted floor, can generate static electricity sufficient to damage an ESD.

1-4


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Product Specifications

2

2. Product Specifications

2.1 Product Overview

Item Descriptions

Basic Model Phaser 3117

Series Model Phaser Family

Market of Sailes Persnal user Laser printer.(Low Price for small work Group.)

Specification 16ppm (A4) Ltr. 17ppm, Jupiter 4e 150MHz, 2Mbytes SDRAM

Toner 1K(initial), 3 K(sailes)

USB 1.1 Model(Compatible with USB 2.0),

150pages feeding, 50pages Face Down

2.2 Specifications

Product Specifications are subject to change without notice. See below for product specifications.

2.2.1 General Specifications

Print Method


Electro-photographic Printing

Developing system

Print Speed

Non-Magnetic, Mono-Component Developing System

16 PPM : A4 size

Resolution

Source of Light

17 PPM (Letter size)

True 600 X 600 DPI

Laser diode (LSU : Laser Scanning Unit)

Warm-Up Time

First Print Time

Feed Method

Media Size

Paper thickness

Size(W X D X H)

Weight

Cold Warm-up : 30sec, Sleep mode : 30 sec

Less than 10 seconds (Ready to 1st page out)

Cassette & Manual

76 X 128mm (3 x 5”) to 216 X 356mm (8.5 X 14”)

Cassette : 16 ~28 lb , Manual Feeder : 16 ~ 43 lb

358*299*217 mm

Net : 4.8Kg(30.6Ib) with toner cartridge

Gross : 7.65Kg(37.7Ib)

Acoustic Noise

Power save mode

Toner save mode

Machine Life

Stand by : Less than 35 dB

Printing : Less than 50 dB

Yes

Yes

50,000pages

Remark


2-1



Periodic Replacing Parts Pick Up Roller : 50,000 Pages

Same with Machine Life Transfer Roller : 50,000 Pages

Fuser Assembly : 50,000 Pages

Toner Sensor

Toner Type

No

Non-Magnetic Contact System

Toner Initial 1,000 sheets@ISO 5% coverage

Toner sale 3 ,000 sheets@ISO 5% coverage

Cassette - Paper capacity : 150sheets

- Paper weight : 60 ~ 163 g/ / 16 ~ 43 lbs

2.2.2 Controller

(Emulation)

(Interface)

Font

Test Print


Processor(CPU)

Memory

Jupiter 4e 150MHz

Standard/Max. :

Type : SDRAM

8 MB(Max. 8 MB)

Expand Memory Slot, Type : NO

Compression Technology : MET(Memory Enhancement Technology)

Standard : SPL

Auto Emulation Sensing : YES

Standard : USB 1.1 Only(Compatible with USB 2.0)

Option : NO

Auto Interface Sensing : YES

Type : Windows Fonts

Number : NO

Demo Mode : Press the Demo Key for 2 Seconds

Configration Mode : Press the Demo Key for 2 Seconds

Cleaning Mode : Not Support

Service Mode : Press the Demo Key when Power on(F/W Download)

2-2


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2.2.3 Electrical Specification


Input Voltage Nominal input voltage

Input voltage range

220~240 VAC

198~255 VAC

Power Consumption

Nominal frequency

Frequency tolerance

Printing : 300W Avg(Max. 500W)

Idling : 100W Avg or less

Power Save : 10W Avg or less

50/60 MHz

+3Hz

2.2.4 Environmental Range

Item

Temperature

Humidity

Operating

10~30 oC(50-90 oF)

20~80%RH

Storage

-20~40 oC (-4~104 oF)

10~80%RH

Remark

2.2.5 Toner Cartridge

Life span


Developing Method

Starter: 1,000 Pages(initial)

Running : 3 ,000 Pages(sailes)

Non-magnetic Contact Developing

Charging Method

Toner Empty sensor

Ozone

Cartridge Style

Conductive Roller Charging

No

0.1PPM or less

Single cartridge

Remark

A4 Size, ISO 19752 Pattern

5% Coverage SIMPLEX


2-3


2.2.6 Paper Handling Specifications

Please refer to Paper Secifications on user Guide.

2.2.6.1 Input Paper Size

Paper

A4

Letter

US Folio(Legal13")

Legal(Legal14")

Executive

Statement

ISO B5

JIS B5

A5

A6

No.10 Env.

Monarch Env.

DL Env.

C5 Env.

C6 Env.

Transparency(OHP)

Label paper

paper size

210 X 297 mm

216 X 279(8.5 X 11")

216 X 330(8.5 X 13")

216 X 356(8.5 X14")

184 X 267((7.25 X10.5")

140 X 216(5.5 x8.5")

176 X 250

182 X257

148 X 210

105 X148

105 X 241(4.15 X 9.5")

98 X191(3.87 X 7.5")

110 X 220(4.33 X 8.66")

162 X 229(6.38 X 9.01")

114 X 162(4.49 X 6.38")

A4 or Letter

A4 or Letter

2.2.6.2 Input capacity

Cassette


150 sheets

2.2.6.3 Output capacity

Cassette

O

O

O

O

O

O

O

O

O

O(1 sheet)

O(1 sheet)

O(1 sheet)

O(1 sheet)

O(1 sheet)

O(1 sheet)

O(1 sheet)

2-4


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2.3 Model

Specification

Table

Model Name Phaser 3117

General


Company Xerox

Printing Process

Print Method:

Print Speed

Electrophotographic Laser

Up to 16ppm in A4, Up to 17ppm in letter

FPOT

Resolusion

Duty Cycle, Monthly

Hardware Software

10sec

600*600 up to 4166 p rints per month

Processor Type Xerox 150MHz

Memory 8 MB

OS Win9X/ME/2000/XP/Linux7/Mac OS8.6

Standard Emulations GDI

Interface Support

Standard Interfaces

Optional Interfaces

USB 1.1(Compatible with USB 2.0)

N/A

Paper Handling

Standard Paper Input 150 Sheets Multi-purpose Tray

Paper Output Face down : 50 Sheet(TBD)

Duplexing N/A

Paper Weight :

- Plain paper

- Thick stock

16 to 24 lb. Bond(60 to 90g/m2)

24 - 90 lb. Index(163g/m2)

Physical

Type

Dimensions w/output tray extended(WxDxH)

Weight(without shipping)

Carton Dimensions

(WxDxH)

Weight(as shipped)

Laser Printer with Internal Controller

358mm x 299mm x 217mm

5.75kg

455mm x 415mm x 325mm

7.65kg

Electical

Power Requirements

Power Consumption Power Consumption

300W printing, 10W Down Sleep Mode

Yes Energy Star* Compliant

Environmental

Temprature :

- Operating

- Non-Operating

Humidity :

- Operating

- Non-Operating

10

0 to 32 to 40

: 20% to 80% RH

: 20% to 80% RH

Noise Level :

Operating

Consumables

Starter

Operating : <50dB(A), Standby :<35 dB(A) up to 1,000 pages(A4/Letter) at ISO 5% coverage continuous printing.

Replacement up 3 ,000 pages(A4/Letter) at ISO 5%


2-5

3

3. System Overview

3.1 System Outline

Paper Path Layout

System Overview

Samsung Electronics

BIN PATH

❶

SMPS

❷

Fuser

❸

Toner Cartridge

❹

LSU

❺

Exit Roller

❻

OPC

❼

Pick-Up Roller

❽

KNOCK-UP PLATE

❾

KNOCK-UP PLATE DOWN

❿

ASS’Y HOLDER PAD

Feed Sensor

SMPS

MAIN PBA

HVPS


3-1

System Overview

Unit Layout

HVPS

Panel

SMPS

Main PBA

LSU

Motor

3-2


x

x

System Overview

3.1.1 Feeding

There are the C-path type, which loads papers, and the manual feeder, which supplies paper one by one.The

cassette has the function pad which separates paper one by one, and it has the sensor function to check the existence of the loading paper.

1) Feeding Type : MPF Type

2) Feeding Standard : Center Loading

3) Feeding Qty : Cassette 150 sheets (75g/ , 20lb paper standard)

4) Manual 1 sheet (Paper, OHP, Envelope etc.)

5) Separating Type : Cassette - Friction Pad Type

6) Manual : None

7) Driver Type : Driving by Gearing from Main Motor

8) Pick_up Roller Driver : Solenoid

9) Paper detecting Sensor : Photo Sensor

10) Paper Size Sensor : None

11) Paper Exit Type : Face Down

3.1.2 Transfer Ass’y

The transfer roller delivers the toner of the OPC drum to the paper.

- The life span : Print over 50,000 sheets (in 16 ~30 )

3.1.3 Driver Ass’y

It is a power delivery unit by gearing. By driving the motor, it supplies the power to the feeding unit, the fusing unit, and the distributing unit.(Motor drive IC : A3977)

- It is a power delivery unit by gearing : Feeder/Developer Motor Fuser/Exit

3.1.4 FUSER

The fuser is consisted of the Heat Lamp,Heat Roller,Pressure Roller,Thermister and Thermostat.

It adheres the toner on the paper with pressure and heat to complete the printing job.

- Life Cycle : 50K(pages)


3-3

System Overview

1) Heat Lamp

. Heat Lamp Terminal Shape : Terminal Single Type

. Voltage 120 V : 115 + /- 5 %

220 V : 230 + /- 5 %

. Capacity : 600 Watt + /- 30 W

. Life : 3000 Hr

2) Thermostat

. Thermostat Type : Non-Contact type THERMOSTAT

. Control Temperature : 150 5

3) Thermistor

. Thermistor Type : HF-R0060 (SEMITEC 364FL Type)

. Temperature Resistance : 7 (180 )

. SYSTEM Temperature SETTING

- Stand by : 165 + /- 5

- Printing : 175 + /- 5 (5 minutes before)

170 + /- 5 (5 minutes after)

- Overshoot : 200 or less

- Overheat : 210 or less

4) Heat roller

. Length : 254 mm

. Valid length : 222 mm

. GND Type : H/R Bearing Grounding type By SECC Fuser frame

5) Pressure roller

. Shaft

- Length : 239.5 mm

. Rubber

- Length : 222 mm

6) Paper separation method

Teflon Coating with SUS Plate Claw System

7) Safety Relevant Facts

. Protecting device when overheating

- 1st protecting device : H/W cuts off when detecting an overheating

- 2st protecting device : S/W cuts off when detecting overheating

- 3st protecting device : Thermostat cuts off the power

. Safety device

- The power of Fuser is cut-off after front cover is open.

- The overheating safety device for customer

- The surface temperature of the Fuser Cover is under 80

3-4


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System Overview

3.1.5 LSU (Laser Scanner Unit)

The LSU unit is controlled by video controller. It scans the video data received from video controller with laser beam by using the rotation principle of the polygon mirror to create the latent image on the OPC drum. It is the core part of

LBP.

The OPC drum rotates as the same speed as the paper feeding speed. It creates the /HSYNC signal and sends it to the engine when the laser beam of the LSU reaches the end of the polygon mirror, and the engine detects the

/HSYNC signal to arrange the vertical line of the image on the paper. After detecting the /HSYNC signal, the image data is sent to the LSU to arrange the its margin on the paper. The one side of the polygon mirror is one line for scanning..

OPC Drum

Photo Diode

Polygon Mirror

Polygon Motor

Motor Driver

LD Driver circit

Protector panel

LD(Laser Diode)


3-5

System Overview

3.1.6 Toner Cartridge

By using the electronic photo process, it creates a visual image. In the toner cartridge, the OPC unit and the developer unit are in a body. The OPC unit has OPC drum and charging roller, and the developer unit has toner, toner cartridge, supply roller, developing roller, and blade (Doctor blade)

- Developing Method: Non magnetic 1 element contacting method

- Toner: Non magnetic 1 element shatter type toner

- The life span of toner: 2,000 sheets (ISO 19752 Pattern/A4 standard)

- Toner Cartridge : Initial(1,000), Sales( 3 ,000)

- Toner remaining amount detecting sensor: None

- OPC Cleaning: Collect the toner by using electric static + FILM OPC

- Management of disusable toner: Collect the toner by using electric static (Clenerless Type- No disusable toner)

- OPC Drum protecting Shutter: None

- Classifying device for toner cartridge: ID is classified by interruption of the frame channel.

Max -1.4KV

8

Cleaning Blade

-100V

7

6

+5KV

3

2

Cleaning Roller

1

-720V

-150V↓

0.20mW

-350V

4

5

-550V

3-6


Samsung Electronics

System Overview

3.2 H/W Structure and Descriptions

3.2.1 H/W Overview

Phaser 3117 is roughly made up Main Control part and SMPS/HVPS part.

Main Controller uses Jupiter4E for its ASIC, which is on chip micro controller and developed for Low-end Laser

Beam Printer.

Jupter4E provides the integrated printing functions such as Printer video controller, Laser Scan Unit controller,

PWM controller and Bi-polar Stepper Motor Controller and has USB interface

OPE B’D

(Build-in HVPS)

SMPS

LSU

Main Controller

HVPS

Jupiter IV ASIC

DRAM

8M Byte

V1.1 USB

Printer

Engine

B’D

Motor

3.2.1.1. Main Control

Phaser 3117 of Main Control are composed of CPU and Print and operate follows function by CPU

- Bus Control, I/o

- Handling, each Driver and PC Interface

Main Control operate its full function on the Main B'd and CPU control Controller ASIC and build-in

Memory.

3.2.1.2 CPU

Use 32Bit RISC Processor of Jupiter4e, and control system by operating Operation Block of the System

Program inside Flash Memory.


3-7

x

System Overview

- Main Function Block: Completely Integrated System for Embedded Applications,

32 Bit Risc Architecture, Efficient and Powerful ARM9 CPU

LSU Interface Module for Interfacing PVC with LSU

2 Channel General Purpose DMA Controller for High Speed I/O

Dual Memory Bus Architecture

- Operation Frequency : 150MHz

- Operation Voltage : 3.3V

- POWER ON RESET TIME : 6.6ms below

3.2.1.3 Flash Memory

Store System Program and can be down load System Program through PC Interface

- Capacity : 0.5M Byte

- Access Time : 70 nsec

3.2.1.4 DRAM

When Printing, use Band Buffer, System Working Memory Area .

- 8 M capa : 8 M Byte basic.

8M :Printing System Working Memory Area

- Access Time : 60 nsec

3.2.1.5 ENGINE

This recording method is electrophography method using LSU, which toner is composed of 1 component and non magnetic.

1) Recording Method : LSU(Laser Scanning Unit)

2) Printing Speed :16ppm

(In continuing printing base A4, printing pages from 2nd to last during 1min)

3) Recording Density : 600 dpi

4) Cassette Capa. : Cassette ; 150sheets(75g Base),

Manual : N/A((DRIVE Selection : Paper, OHP, Envelop - 1 sheet)

5) Paper Size : Cassette ,Manual; Width = 76 ~ 216mm, Length = 125mm ~ 356mm

6) Effective recording size

- A4 : 202 x 291 mm

- Letter : 208 x 273 mm

- Legal : 208 x 350 mm

- Folio : 208 x 325 mm

- Top Margin : 4.23 ° 3 mm

- Left, Right Margin : 4.23 ° 3 mm

7) CRU(Toner Cartridge)Life : 3 ,000pages Printing(A4, 5% Pattern Printing)

8) First Print Out Time : within 11sec( Standby )

9) Warming up time : within 30sec (Ambient : 25° )

3-8


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System Overview

3.2.2 Main Board

Main Board are composed of Engine and Controller on the one-Board.

Main Board control to send Current Imagedml Video Data to LSU to print and have motor Driving and Circuit for the current driving and also include Paper Exit Sensor, Cover Open s/w, panel s/w.

U5

(IC-DRAM/

512K x 16Bit)

(IC-POSI, ADSUST REG)

(IC-CMOS LOGIC, INVER TER)

U7

U10

(IC-MOTOR DRIVER)

U12

U1

(IC-VOLTAGE COMP)

U3

(IC-CLOCK GENERATOR)

12.0MHz

U8

(IC-EEPROM/256x12Bit)

U9

(IC-POSI, FLXED REG)


3-9

System Overview

U6(Jupiter 4E)

- It is a main CPU and an Asic of Jupiter4E which has a CPU core CLK with over 150MHz and a System bus 45MHz.

- It use 3.3V for operation voltage and I/O, It uses 80MHz for system bus CLK,

SDRAM

- Main memory. SDCLK is 80Mhz.

A3977

- It is an Main motor driver IC and controls the motion of main motor.

Regulator

- It Supplies the core voltage to CPU by converting 3.3V to 1.3V.

EEPROM(U8 : 93C66)

- It is an EEPROM with 12C method.

SMPS connector(CN8)

- It connects SMPS, supplies the power, and delivers the high voltage contol signal, etc. If a harness is not normally connected to this connector, power cannot be supplied.

LSU connector(CN12)

- It connects a LSU.

DC Motor connector(CN11)

- It connects an main motor and drive a DC motor.

HVPS connector(CN10)

- It connects a HVPS.

DCU connector(CN1)

- It interface a DCU-JIG

USB connector(CN6)

- It interface a the printer.

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3.2.3 Asic(SPGPm) Specification

3.2.3.1 Introduction

Jupiter4E is One-Chip micro-Controller for Low cust Laser beam Printer.

1. One Chip Laser Beam Printer Controller

- GDI only

- AMBA AHB used for high speed bus transactions between masters and slaves

- AMBA APB used for low speed bus transactions between ARM core and peripherals

- 3 PLLs ( 2 Dithered PLL and 1 General PLL) first for CPU(150MHz), AHB(75MHz), APB(75MHz), second for USB(48MHz) third for PVC(59MHz)

- 75MHz system operation

- 1.8V power operation

- 3.3V tolerant input and bi-directional I/Os

- SDRAM and IO Address / Data signals multiplexing

2. Integrated ARM940T 32-bit RISC embedded processor core

- 75MHz core frequency operation

- Harvard Architecture Cache : 4KByte Instruction cache, 4KByte Data cache

- Single memory bus architecture

3. Built in Flash Memory

- 4MBits (128Kx32bits)

- Serial programming mode using flash programmer tool

- Internally flash memory read / write operation support

- Programmable access timing control

4. 32MB Special function Register Area

5. Directly connected to 3 external IO banks (IOC)

- 32 MB size in each IO bank

- Programmable setup, access, hold timing

- Programmable recovery time for slow devices

- Allows to access peripheral devices such as GPIO control logic

6. Directly connected to 1 external ROM bank (ROMC)

- 32 MB size for one ROM bank

- One external flash memory attachable.

7. Directly connected to two SDRAM banks (SDRAMC)

- Extensible architecture

- Two external SDRAM attachable.

- SDRAM controller supports PC-100 and PC-133 SDRAM running at 75MHz

- Up to 32MB per bank.

- Support for SDRAM configurations including programmable column address

- Programmable refresh interval

System Overview


3-11

System Overview

8. Interrupt Controller (INTC)

- FIQ or IRQ mode operation selectable

- Programmable Interrupt Enable/Disable

9. USB interface

- Version 1.1

- Four 128x8 FIFOs for Data transmission.

- Interrupt based input / output interface, no DMA based interface support

- USB wrapper for AHB interface

- AHB Bus interface

10. Serial port interface (UART)

- Programmable Baud Rate

- 2 channel Independent Full Duplex UART

- Polling, Interrupt based operation support

- Max 16 byte FIFO to handle SIR Bit Rate Speed

11. Printer video controller for LBP engines (PVC)

- 20MHz video rate (Hummingbird 2 : letter - 21 ppm, A4 : 20ppm)

- video data transmitted through LSU Controller

12. Laser Scan Unit (LSU) Controller

- Laser Scan Unit (LSU) Interface for Laser Diode turn on/off timing control

- Sample & hold period generation.

- Auto Power Control for Laser Diode with PID control method using internal 10 bits DAC.

- LSU clock generation

- Brushless DC motor control clock generation

13. ADC Interface

- 4 channels ADC interface for analog devices such as temperature sensor.

- Programmable ADC Clock Cycle.

- Automatic or Manual AD Conversion support.

- 4 Special Function Registers for monitoring the ADC results for 4 channels.

14. PWM Controller

- 4 PWM output ports - THV, BIAS, FAN control and AC ELECTRIFICATION

15. Bi-polar Stepper Motor controller (MOTORC)

- Phase generation for the purpose of paper feeding

- fixed hardware phase and current table

- programmable phase and interval time

- Interrupt based phase change operation

16. Timer

- 3 Independent Programmable Timers

- Watch Dog Timer for S/W Trap

17. Miscellaneous

- Mux controlled 24 GPI, 28 GPO & 5 GPIO ports .

- Mutual exclusive GPO/GPIO ports control by the port control enable register

- Programmable Bus Master Priority.

- Project code added.

3-12


x

x

System Overview

TMS

TCK

TDI

TDO nTRST

ARM CORE

( ARM940T

I / C 4 KB

D/ C 4 KB )

TIC

PVC

PPD[7:0] nSTROBE, nINIT, nSLCTIN, nAUTOFD

PDE,

BUSY, nACK,

SELECT,

PERROR, nFAULT

RXD1-0

TXD1-0

D+

D-

Dpullup

VBUS

(

PPI

UART

USB CORE

USB1.1 )

INTC

TCU

GPIO4-0

GPO27-0

TEST

OM2-0

MISC nRESET

XI

XO

CAP2-0

SCLK

EXTCLK

PL L

( pll 2096x, pll 2073x)

CL OCK & RESET

3.2.3.2 Jupiter4E Internal Block Diagram

AHBC

( ARB, DEC, MUX)

A

H

B

H

B

A

P

B

APB

BRI DGE

FL ASH CORE

( mfl130_128Kx32 )

SCL

SDA

PROGRAM

ENEXHV

EXHV

DC2-0

SDRAMC

( EXT : 2 CH)

ADDR/DATA

BUS MUX nSRAS nSCAS nSCS

DQM1-0

BA1-0

SCKE

ADDR18-0

DATA15-0 nSWE/nWE

IOC ( 3 CH)

/ ROMC (1 CH) nIOCS1-0 nIOCS2_WE nIOCS2_OE nIOCS_ALL nROMCS nOE

L SUC

( dac1264x_1455) nLREADY nHSYNC

VDO

LSUCLK

SHPERIOD nLDON

DACOUT

BLDC_CLK

ADC INTERFACE

( adc1275x_pc)

ADCIN3-0

PWM

MOTORC

PWM3-0

MOTPAT5-0


3-13

System Overview

3.2.4 Sensor Controller

3.2.4.1 Paper Feeding/Width

When a paper passes an actuator of a feed sensor unit after feeding a paper into a set,it detects a signal of the photo interrupter and informs the paper feeding status to CPU. After sensing the signal and certain time later, it strews an image data.(Related in Paper Front Edge Adjustment)

If it could not detect the feed sensor within 1 second after feeding a paper, a paper jam0 (CPU#_) occurs.

Phaser 3117 differs from other general printers because it doesn’t have a paper empty sensor. It recognizes the paper existing status by using a firmware. If a paper is not fed, it recognizes the state as no paper (Red and Yellow lights turn on among other LEDs). With the same principle, it senses the OPC unit. After OPC unit is mounted,the actuator operates. When it passes the actuator of sensor unit, it detects the signal of the photo interrupter, informs the existing OPC unit to CPU, and then stays at the status.

3.2.4.2 Paper Empty Sensing

The paper empty is detected by the empty sensor mounted to an engine board and the actuator mounted to a frame. Paper senses the on/off time of the empty sensor by using CPU and informs the normal operation status and the jam occurrence status to CPU.

3.2.4.3 Jam Cover/Cover Open Sensing

Phaser 3117 uses two M/S:one senses the cover open and the other senses the jam cover open.

The cover open sensor is located on the left bottom of HVPS.When the front cover is open, +24V supplied to each unit (DC fan,Solenoid,Main Motor,Polygon Motor Unit of LSU in Fusing Unit,and HVPS)is interrupted.

The jam cover open sensor is located on the left bottom of SMPS. When the jam cover is open, +24V supplied to each unit (DC fan, Solenoid, Main Motor, Polygon Motor Unit of LSU in Fusing Unit, and HVPS) is interrupted.

D0 bit of CPU detects the jam cover open/cover open, and D7 bit of CPU detects the existence of OPC.

In this case, it informs the status to user by turning on the red LED among OP panel LEDs.

3.2.4.4 Solenoid Driving Circuit

The solenoid consists of two used for paper pick-up and MP signal. D4 bit of CPU turns it on/off, and its driving time is 300ms. The diode protects the drive TR from the pulse (noise)generated by de-energizing operation of solenoid.

3-14


x

System Overview

3.2.5 SMPS board (Switching Module Power Supply)

The SMPS supplies DC Power to the System.

It takes 110V/220V and outputs the +5V, +24V to supply the power to the main board and other board. It is consisted of the AMPS part, which supplies the DC power for driving the system, and the AC heater control part, which supplies the power to fuser. SMPS has two output channels. Which are 5V and +24V

Micro Switch

CON1(Inlet)

F1(Fuse/250V, 5A)

Power Switch

CON2

(Output)

Exit Sensor x

Pin Signal

<CON2>

Pin No

5

6

3

4

1

2

7

8

9

Pin Name

+24VS2

+24V

+24VS1

+24VS1

+5V

DGND

DGND

P_REGI

FUSER ON


3-15

System Overview

1) SMPS Specification

- AC Input

Input Rated Voltage : AC 220V ~ 240V AC 120V / AC 220V(EXP version)

Input Voltage fluctuating range : AC 90V ~ 135V / AC 180V ~ 270V(EXP version)

Rated Frequency : 50/60 Hz

Frequency Fluctuating range : 47 ~ 63 Hz

Input Current : Under 4.0Arms / 2.5Arms

(But, the status when lamp is off or rated voltage is inputted/outputted )

- Rated Output Power

No Items

1 Channel

2 Connector pin

3 Rated Output

4 Max. Output current

5 Peak Loading current

6 RIPPLE NOISE Voltage

7 Maximum output

8 Peak output

9 Protecttion for loading shorage and overflowing current

CH1

+5V

CON 3

5V PIN : 11, 12

GND PIN : 8, 9

+5V 5%

(4.75 ~ 5.25V)

0.8A

1.0A

100mVp-p or less

4W

5W

CH2

+24.0V

CON 3

24V PIN : 2, 3, 4

GND PIN : 6, 7

+24V 5%

(20.4 ~ 27.6V)

1.5A

2.0A

500mVp-p or less

36W

48W

Remarks

1ms

1ms

- Consumption Power

No

1 Stand-by

2 PRINTING

3 Sleep-Mode

Items CH1(+5V)

1.0 A

1.0 A

0.8 A

CH2(+24V)

0.4 A

2.0 A

0.4 A

System

AVG : 55 Wh

AVG : 250 Wh

AVG : 10 Wh

- Power Cord Length : 1830° 50mm

- Power Cord Switch : Use

- Feature

. Insulating Resistance : 100 or more (at DC 500V)

. Insulating revisiting pressure : Must be no problem within 1 min. (at 1000Vac,10mA)

. Leaking Current : under 3.5mA

. Running Current : under 40A PEAK (AT 25 , COLD START) under 50A PEAK (In other conditions)

. Rising Time : within 2Sec

. Falling Time : over 20ms

. Surge : Ring Wave 6KV-500A (Normal, Common)

3-16


x

System Overview

- Environment Condition

. Operating temperature range : 0 40

. Maintaining temperature range : -20 40

. Preserving Humidity Condition : 10% ~ 90% RH

. Operating atmospheric pressure range : 1atm

- EMI Requirement : CISPR ,FCC, CE, MIC,

- Safty Requrement : IEC950 UL1950, CSA950, C-UL,Semko, EK,CB,

CCC(CCIB),GOST, EPA, Power Save

3.2.6 HVPS board (High Voltage Power Supply)

The HVPS board creates the high voltage of THV/MHV/Supply/Dev and supplies it to the developer part for making best condition to display the image. The HVPS part takes the 24V and outputs the high voltage for THV/MHV/BIAS, and the outputted high voltage is supplied to the toner, OPC cartridge, and transfer roller.

x

1) Transfer High Voltage (THV+)

- Input Voltage : 24 V DC ° 15%

- Out Voltage : Max. +1.3KV ° 15% (Cleaning,200 )

- Out Voltage Trigger : 6.5

- Input Voltage Variation : 5 % below(Variation 21.6V°

≠

26.4V)

Load Variation : % below

- Out Voltage Rising Time : 100 ms Max

- Out Voltage Falling Time : 100 ms Max

- Transfer Variation Voltage on Environment Variation : +650 V(Duty 10%) ~ 5KV (Duty 90%)

- Control Method on environment : THV-PWM ACTIVE,transfer Active signal, of environment sensing voltage is input and get feed back current, and recalculate it to resistence .

- Control method on transfer output voltage : It is controlled by changing its duty of THVPWM Signal as follows. 10% Duty : +650V, 90% Duty : +5KV 5%

2) Charge Voltage (MHV)

- Input Voltage : 24 V DC 15%

- Out Voltage : -1.3KV ~ 3.2%

- Out Voltage Rising Time : 50 ms Max

- Out Voltage Falling Time : 50 ms Max

- Out Voltage Range : 30 ~ 1000

- Output Control Signal(MHV-PWM) : CPU is HV output when PWM is Low

3) Developing Voltage (DEV)

- IInput Voltage : 24 V DC 15%

- Output Voltage: -350V 4.6%

- Output Voltage Fluctuation range: PWM Control

- Input contrast of the output stability degree : 5 % or less

- Loading contrast : 5 % or less

- Output Voltage Rising Time : 50 ms Max


3-17

System Overview

- Output Voltage Falling Time : 50 ms Max

- Output Loading range : 10MßŸ ~ 1000

- Output Control Signal (BIAS-PWM) : the CPU output is HV output when PWM is low.

4) Supply

- Output Voltage : -550 V 8.6%(ZENER using, DEV )

- Input contrast of the output stability degree : under 5 %

- Loading contrast : 5 % or less

- Output Voltage Rising Time : 50 ms Max

- Output Voltage Falling Time : 50 ms Max

- Output Loading range : 10 ~ 1000

- Output Control Signal (BIAS-PWM) : the CPU is HV output when PWM is low.

CN3

LED2

(Toner Save LED)

LED1

(Error LED)

Switch

MHV

OPC

DEV

THV

Supply

Micro Switch

CN1

Input

3-18


x

System Overview

3.2.7 FUSER AC POWER CONTROL

Fuser(HEAT LAMP) gets heat from AC power. The AV power controls the switch with the Triac, a semiconductor switch. The 'ON/OFF control' is operated when the gate of the Triac is turned on/off by Phototriac (insulting part).

In other words, the AC control part is passive circuit, so it turns the heater on/off with taking signal from engine control part.

When the 'HEATER ON' signal is turned on at engine, the LED of PC1 (Photo Triac) takes the voltage and flashes.

From the flashing light, the Triac part (light receiving part) takes the voltage, and the voltage is supplied to the gate of Triac and flows into the Triac. As a result, the AC current flows in the heat lamp, and heat is occurred.

On the other hand, when the signal is off, the PC1 is off, the voltage is cut off at the gate of Triac, the Triac becomes off, and then the heat lamp is turned off.

1) Triac (THY1) feature :16A, 600V SWITCHING

2) Phototriac Coupler (PC3)

. Turn On If Current : 16mA

. High Repetive Peak Off State Voltage : Min 600V x


3-19

System Overview

3.3 S/W Structure and Descriptions

The purpose of this document is to describe the design specification of the Engine Control F/W for the

Phaser 3117.

3.3.1 Introduction

This Engine Control Firmware is a program that controls LBP Engine of the Phaser 3117.

This firmware is executed every 10msec as an interrupt routine of the main system. At stand-by state, this firmware monitors the enable print command from the main system. If the enable print command is detected, this firmware controls the Engine Mechanism according to the printing process and paper feeding state. And with the Sleep command or Wake-Up command, this firmware controls the Engine state.

3.3.2 Engine Control F/W Overview

Engine Control F/W is executed every 10msec by timer interrupt of main system. And it consists of 3 control modules.

- Engine Main Control, Interface Control and Sensing & Unit Control Module.

Major operations of the Engine Control F/W are following.

- Control the Pick-Up, Feeding and Discharging of Paper

- Control the LSU

- Control the HVPS for the Developer Process

- Control the Temperature of Fixing unit

Controlling selection to here is added.

- Second Cassette Feeder(SCF) : N/A

3-20


x

- Architecture of Engine Control F/W

Main F/W of the printer controller

Engine F/W

Interface Control Module

Engine Main Control Module

Sensing & Unit Control Module

Hardware Devices

& Mechanical Device

System Overview

Power On

Initial

Device Units

Fixing Unit

LSU

HVPS

Fan Unit

Motors

Solenold &

Clutch


3-21

x

System Overview

3.3.3 F/W Architecture of Engine Control Firmware

- The Engine Control Module is executed every 10msec as interrupt job of main system. There are three control modules, i.e., Engine Main Control Module, Engine Interface Module and Sensing & Unit Control

Module.

- Probably from usual state it will be able to rehabilitated a prior to entry error state in error condition it is to confirm. When the if rehabilitation is possible then after rehabilitating it goes back in usual state, else with an error condition it goes in error state. Currently the rehabilitation function of the low heat error , the over heat error and the LSU error is embodied.

- Low Heat Error

When the error occurrs, it does not indicate an error. It stores the present temperature and supplies the heat to the fixing unit during the scheduled time. If the temperature goes up after scheduled time, it goes back to a normal state. However, if not, it is formed that an error occurrs.

- Over Heat Error

When the error occurs, it informs an error first. It stores the present temperature as well and waits a scheduled time. If the temperature goes down after scheduled time, then it goes back to a normal state.

However, if not, it is formed that an error occurrs.

- Lsu Error

When the error occurrs, it does not indicate an error. It accomplishes printing only again. If even time when it judges an error, it informs an error. Concretely speaking, if the LReady or Hsync error happens, the paper exits out beforehand. And then the engine mode is changed to recovery mode and the engine informs the main system of the engine mode. And the engine checks the LSU error in itself. If the error doesn’t happen, the printing job will be proceeding.

3.3.4 Engine Interface Module Design

Engine Interface Module communicates with the main system in order to receive the command from main system and to transmit the present engine status for the requested status. There are two sub functions. One is a function to receive the command from the main system. The other is a function that informs the main system of the current engine status for the requested item.

3.3.5 Engine Sensing & Unit Control Module Design

Engine Sensing & Unit Control Module consists of 4 sub-functions. The first function is an ADC function that reads the ADC values of the temperature of the fixing unit. The second one is a fixing unit control function. This function regulates the temperature of the fixing unit within a fixed range to be set by the paper type and the number of pages to print out. The third one is a fan control function that controls the fan unit. And the last one sets the flag that describes the present status of each sensor.

3-22


x

- F/W Architecture

START

Global Timer Increment

Get A DC Value

(Tempe rature, .. )

Control the fixing unit

&

Check error condition for the fixing unit

Control the fan unit

Get status value of each sensor

&

Set present status f lag of each sensor

System Overview


3-23

x

System Overview

3.3.6 LED Behaviors

Ready

ON

SLOW BLINK

LED Error

OFF

OFF

FAST BLINK

N/D

OFF

BLINK

N/A

N/A

OFF

N/D

ON

BLINK

N/A

N/A

LED Toner Save

N/A

N/A

N/A

N/D

N/A

BLINK

ON

OFF

LED Status

Ready to receive the data.

Receiving the data from the host.

In case that toner save mode is ON.

Printing the page.

In case that toner save mode is ON.

Recovery mode

Out of paper

Service error (LSU or Fuser error)

Toner save mode is ON

Toner save mode is OFF

3.3.7 Error LED Operation

Error LED Operation

All LEDs blink the each time interval.

Fuser Error

Service Error

Open Fuser Error

LSU Error

Low Heat Error

Over Heat Error

LReady Error

Hsync Error

LED operation

All LEDs (Toner save LED, Error LED) blink a time interval of 1 second.

All LEDs (Toner save LED, Error LED) blink a timeinterval of

4 seconds.

All LEDs (Toner save LED, Ready LED and Error LED) blink a time interval of 1 second.

All LEDs (Toner save LED, Ready LED) blink a time interval of 1 second.

All LEDs (Toner save LED, Ready LED) blink a time interval of 4 seconds.

3-24


x

System Overview

3.4 Initial Product Installation

3.4.1 Accessory List

Remove the printer and all accessories from the packing carton. Make sure that the printer has been packed with the following items: x

3.4.2 Installing the Toner Cartridge

1. Grasp the front cover and pull it toward you to open.


3-25

System Overview

2. Remove the toner cartridge from its bag and remove the paper covering the cartridge.

3. Gently shake the cartridge from side to side to distribute the toner evenly inside the cartridge.

4. Locate the cartridge slots inside the printer, one on each side.

3-26


x

System Overview

5. Unfold the toner cartridge handle and grasp it. Insert the cartridge in the printer until it snaps into place.

6. Close the front cover. Make sure that the cover is securely closed. If the cover is not firmly closed, printing errors may occur when you print.

x


3-27

System Overview

3.4.3 Loading Paper

You can load approximately 150 sheets of paper in the tray.

1. Grasp the paper input tray and pull it toward you to open.

Pinch the rear guide and pull it out to extend the tray.

2. Prepare a stack of paper for loading by flexing or fanning them back and forth. Straighten the edges on a level surface.

3. Load paper with the print side facing up. Make sure that all four corners are flat in the tray.

3-28


x

System Overview

4. Pay attention not to overload paper. Paper overloading may cause paper jams.

5. If necessary, pinch the rear guide to adjust for the paper length and pinch the side guide and slide it to the left flush against the paper.

3.4.4 Connecting a Printer Cable

To print from your computer, you need to connect your printer to your computer with a Universal Serial Bus (USB) cable.

1. Make sure that both the printer and the computer are turned off.

2. Plug the USB printer cable into the connector on the back of the printer.

x

3. Connect the other end of the cable to the USB port on your computer.

See your computer User’s Guide if you need help.


3-29

System Overview

3.4.5 Turning the Printer on

1. To print from your computer, you need to connect your printer to your computer with a Universal Serial

Bus (USB) cable.

2. Plug the other end into a properly grounded AC outlet and turn on the printer using the power switch.

3.4.6 Printing a Demo Page

Print a demo page to make sure that the printer is operating correctly.

1. Press and hold down the Cancel button on the control panel for about 2 seconds to print a demo page.

2. The Demo page shows the printer’s current configuration.

3-30


x

x

System Overview

3.4.7 Installing Printer Software

The supplied CD-ROM contains Windows printing software, Linux printing software, on-line User’s Guide and

Acrobat Reader to view the User’s Guide.

1. If you are printing from Windows

- You can install the following printer software using the CD-ROM.

• Printer driver for Windows. Use this driver to take full

- advantage of your printer’s features. For details, see Software User Guide.

• Status Monitor allows you to see the printing status of the printer. For details, see Software User

Guide.

2. If you are printing in Linux

- Go to Software User Guide for information about installing the Linux driver.

3. System Requirements

Your machine supports following operating system.

• Windows 98/Me/2000/XP - The following table shows Windows requirements.

Item

Operating System

CPU

RAM

Free Disk Space

Internet Explorer

Window 98/Me/2000/XP

Window 98/Me/2000/XP

Window XP

Window 98/Me/2000

Window XP

Window 98/Me/2000

Window XP

5.0 of higher

Requirements

Pentium II 400 or higher

Pentium II 933 Ghz or higher

64 MB or higher

128 MB or higher

300 MB or higher

1 GB or higher


3-31

x

Alignment and Adjustments

4

4. Alignment and Adjustments

4.1 Sample Pattern

This product has the several sample patterns for maintenance. With the sample patterns, check the existence of the abnormality. The patterns help to regularly maintain the product.

4.1.1 Printing a Demo Page

Print a demo page or a configuration sheet to make sure that the printer is operating correctly.

1) Hold down the Cancel button for about 2 seconds to print a demo page.

2) The Demo page or the configuration sheet shows the printer’s current configuration.


4-1


4.2 Control Panel

4.2.1 OP Panel

4.2.2 On Line/Error and Toner Save LEDs

LED Description

If the On Line/Error lights green, the printer is ready to print.

If the On Line/Error lights red, the printer is experiencing an error, such as jammed paper, no paper, the open cover or the empty toner cartridge.

If you press the Cancel button while the printer is receiving data, the On Line/Error LED blinks red to cancel printing.

In Manual Feed mode, if there is no paper in the tray, the OnLine/Error LED blinks red.

Load paper into the tray and the LED stops blinking.

If the printer is receiving data, the On Line/Error LED slowly blinks green.

If the printer is printing the received data, the On Line/Error LED blinks green fast.

If you press the Cancel button in Ready mode, this LED is on and the Toner Save mode is enabled.

If you press this button once again, this LED is off and the

Toner Save mode is disabled.

If the On Line/Error and Toner Save LEDs blink, your system has some problems.

4-2


x


4.2.3 Cancel button

LED

Printing demo page

Manual feeding

Canceling print job

Toner Save mode on/off

Description

In Ready mode, press and hold this button for about 2 seconds until all LEDs blink slowly, and release.

Press this button each time you load a sheet of paper in the tray, when you select Manual Feed for Source from your software application.

Press this button during printing. The On Line/Error LED blinks while the print job is cleared from both the printer and the computer, and then return to

Ready mode. This may take some time depending on the size of the print job.

In Manual Feed mode, you can’t cancel the print job by pressing this button.

In Ready mode, press this button to turn the Toner Save mode on or off.

x


4-3


4.3 Consumables and Replacement Parts

The cycle period outlined below is a general guideline for maintenance.

The example list is for an average usage of 50 transmitted and received documents per day.

Environmental conditions and actual use will vary these factors.

The cycle period given below is for reference only.

COMPONENT

Pick-up Roller

REPLACEMENT CYCLE

50,000 Pages

Transfer Roller

Fuser

50,000 Pages

50,000 Pages

Toner Cartridge 3 ,000 Pages(Sales), 1,000 Pages(Initial)

4.4 LED Status Error Message

ERROR

Open Fuser Error

Over Heat Error

Low Heat Error

LSU not Ready Error

(Pmotor Error)

LSU Not Ready Error

(HSYNC Error)

LED Status

The [Error] LED (red) and the [Toner Save] LED are simultaneously flashing every one-second.

The [Error] LED (orange) and the [Toner Save] LED are simultaneously flashing every one-second.

The [Error] LED (red) and the [Toner Save] LED are simultaneously flashing every 4 seconds.

The [Error] LED (green) and the [Toner Save] LED are simultaneously flashing every one-second.

The printing is stop in the fad status, and the [Error] LED (green) and the [Toner Save] LED are simultaneously flashing every 4 seconds.

DCU CODE

60

68

62

95

96

4-4


x

x


4.5 Periodic Defective Image

If the delinquent image regularly occurs in the printed-paper, it is due to delinquent or damaged roller.

Refer to the table in below and check the condition of the roller.

No

1

4

5

2

3

6

7

Roller

OPC Drum

Charge Roller

Supply Roller

Developing Roller

Transfer Roller

Heat Roller

Pressure Roller

Defective image

75.5mm

37.7mm

47.5mm

35.2mm

46.2mm

63.9mm

75.4mm

Typical defect

white spot on black image or black spot black spot light or dark horizontal image band horizontal image band image ghost

Black spot and image ghost black spot on the backside

1

2

3

4

OPC Drum

Charge Roller

Supply Roller

Developing Roller

BIN PATH

5

6

7

Transfer Roller

Heat Roller

Pressure Roller


4-5


4.6 How to use DCU

4.6.1 DCU Setup

You can examine the malfunction of the printer. To perform DCU, open the front discharge cover and leave the connect the harness wire(10 pin/4 pin) to the CN1(Phaser 3117) of the Main control board.

STATUS

ML SERIES DIAGNOSTIC CONTROL UNIT

04

05

07

08

09

10

DEV 300

LSU READY

PAPER EMPTY

COVER OPEN

COER HEATING

DEV 350

LSU MT & LD

PAPER WIDTH

EXIT SENSOR

DEV 350

LSU MOTOR

NEW CRU

FEED SENSOR

PRINTING TEMP READY HEAT

SELF

TEST

DIAGNOSTIC

06

07

08

09

10

11

00

01

02

03

04

05

12

13

14

DIAGNOSTIC CODE

MAIN MOTOR OPERATING SYSTEM

MAIN HIGH-VOLTAGE ON

TRNSFER HIGH-VOLTAGE (-)ON

THV(+) REFERANCE VOLTAGE

DEV/SUPPLY HIGH-VOLTAGE ON/PTL ON

LSU OPERATING SYSTEM

PICKUP CLUTCH ON

PEEMPTY/PWITH/NEW CRU TEST

FEED & EXIT SENSOR TEST

COVER OPEN SENSOR TEST

FUSER TEST

HOT BURN TEST

CLEAN MODE PRINT

THV(+)TRIGGER, ALL HV & FAN ON

THV(+) REFERENCE ON

ON OFF

61

STATUS CODE

WARM UP

00

01

02

03

04

READY (REGAL)

READY (LETTER)

READY (A4)

READY (EXECUTIVE)

READY (B5)

20

30

40

50

PRINT START

FEED SENSOR ON

FEED SENSOR OFF

PAPER OUT

69

SLEEP MODE

ERROR STATUS CODE

60

62

68

64

70

71

72

73

95

OPEN FUSER ERROR

LOW TEMPERATURE ERROR

OVER HEATING ERROR

COVER OPEN ERROR

NO PAPERR

PAPER JAM 0

PAPER JAM 1

PAPER JAM 2

LSU NOT READY

DIAGNOSTIC

MODE

DOWN

UP

SHIFT STOP

ENTER

TO ENTER DIAGNOSTIC MODE, PUSH THREE BUTTONS SIMUL ANEOUSL

AND TURN THE PRINTER POWER ON.

4-6


x

x


4.6.2 Code

Connect DCU to the printer and turn the power on. It show 7 Segment FND on the panel and each code tells the function of the printer.

1) Normal Code

While printing or warming up, it indicate the position of the paper

20, 21, 22 Print Start

30

40

50

69

Code

61

00~05

State

Warm up

Ready(kind of paper)

Feed Sensor On

Feed Sensor off

Paper Out

Sleep Mode

Description

The printer is on, the cover is open or close.

The printer is ready, the paper is detected when the first paper is printed.

00: Legal ,01: Letter ,02: A4 ,03: EXEC ,04: B5 ,05: Folio, 06: A5/A6

The engine controller received the print order from the video controller.

20: 1st, 21: MP, 22: SCF

The paper is passing out of the Feed Sensor.

The paper has passed out of the Feed Sensor.

The paper has passed out of Exit Sensor.

The fuser power turned off to minimize the power consumption.

2) Error Code

When detecting the malfunction, the printing is stopped to indicate error code.

Code State Description

64

65

70

71

72

60, 62, 68

73

76

95

Fuser Error The error in the fuser occurred. There is a short circuit in the thermistor and the thermostat while printing, Low Temperature Error occurs.

• 60: Open Fuser Error

• 62: Low Heat Error

• 68: Over Heat Error

The Printer Cover is open.

The Toner Cartridge not installed,

Cover Open

CRU Error

No Paper

Paper Jam 0

Paper Jam 1

No paper in the paper cassette.

The front part of paper is jammed between pickup unit and Feed sensor.

The front part of paper is jammed between the Discharge sensor and Feed sensor.

Paper Jam 2 The front part of paper is jammed just after passing through the discharge sensor.

Out Bin Full The Out bin is filled with paper.

LSU Not Ready LSU Scanner Motor not ready or Hsync signal not output.


4-7


4.6.3 Self Diagnostic Mode

If Error code occurs due to malfunction of the printer, perform Self Diagnostic Mode to solve the problem.

The printer works only in the self-test mode to solve the malfunction problem.

To enter the self-test mode, turn the power on pressing the buttons of [Down], [Shift] and [Stop] at the same time.

Release the button within 2 or 3 seconds if 78 shows in the DCU. If 00 shows in the DCU, press the button [Up] or

[Shift] to select the self+test , and press the button of [Enter] to operate. To stop, press the button of [shift] and

[Enter] together.

Description Code

00 Main Motor Operating System

Only the main motor is in operation.

01 Main High Voltage On(THV-)

-1400 voltage output by MHV terminal.

Caution : High voltage probe should be used.

02

03

04

05

06

Transfer High Voltage(-)On(THV-)

-1000 voltage output by MHV terminal.

Caution : High voltage probe should be used.

Transfer High Voltage (+)Reference on (THV +)

+1300 voltage output by MHV terminal.


DEV/supply High Voltage : DEV/Supply High Voltage Test.

The left one of the three LEDs in the self-test panel is on when DEV high voltage Supply high voltage output by each HV terminal. Press the [Up] button to switch the voltage. The middle and right one of the three LEDs are on and -350 voltage output by DEV HV terminal.


LSU Operating System

The scanning motor of LSU is in operation, the right LED of the three buttons on. Press the [Up] button to Check LD. LD is functioning and the middle button is on. If the LD is normal, all LEDs are on.

Pickup clutch on

The Solenoid in the printer is in operation. To stop the operation, Press the button [shift] and [Enter] together.

4-8


x

x


Code

07

08

09

10

Description

Paper Empty Sensor Test :

If activate the Actuator of the PEMPTY Sensor, the left and right of the three LEDs are on.

Paper Empty Sensor ON/OFF 1st LED ON/OFF

Feed & Exit Sensor Test

Test the Feed sensor and Discharge sensor in the same way as '07'.

Feed Sensor ON/OFF

Exit Sensor ON/OFF

2nd LED ON/OFF

3rd LED ON/OFF

Cover Open Sensor Test

Test the Cover Open Sensor in th same way as code '07’

Cover Open Sensor ON/OFF1st LED ON/OFF

Fuser Test

If the [Enter] button pressed, the right LED is on and temperature of the fuser is up to

READY Mode. If the [Up] button pressed, the middle LED is on and temperature of the fuser is up to Printing Mode.

If you press the button once more, the left LED is on and temperature of the fuser is up to overheat Mode.

11

12

Hot Burn Test

If the [enter] button pressed, the printer is continuously printing without detection.

Turn the power off to stop operation.

Cleaning Mode Print Mode

Print the paper to clean the OPC Drum in the Cartridge.

13

14 PTL Test : (Phaser 3117: not design)

Indicates the function of the PTL, same method of the code ‘07’.

15 Fan Test :

Indicates the function of the Fan, same method of the code ‘07’.

16

THV(+) TRIGGER. ALL HV :

All high voltage output by each HV terminal and LSU and the fan is in operation. In this mode, electronic resistance of transfer roller and high voltage is detected.

17

Manual Pickup Test :

Indicates the function of th Manual Pickup, same method of the code ‘07’.

Manual Sensor Test :

Indicates the function of the Manual Sensor, same method of the code ‘07’.


4-9


No.

00

01

02

03

Functi on

Motor

MHV

THV(-)

THV(+)

DEV

Enter

Motor Run

Mhv On

Thv Negative On

Thv On

Dev On

Up/ Down Stop

Motor Stop

Mhv Off

Thv Negative Off

Thv Off

Dev Off

Remar k

-1300V

-1000 V

+1300V

-350V

04

Supply

0 : -550V 0 :

DEV

-350V

05

06

LSU

Pic kUp

LSU Run

Pickup On

On Off Ready

07

PEmpty

Paper Empty

08

Sensor

Ex it

09

Cover

Cover Open

10

Fus er

11

HotBur n

12

Clean Print

13

14

15

16

17

Thv

Refer ence

PTL

FAN

Manual

Pic kUp

Manual

Sensor

Fuser On

HotBurn On

Clean Printing

PTL On

Fan On

Manual Pickup On low adequate

Manual Sensor

Feed high

LSU Stop

Pickup Off

Fuser Off

020mV

P TL Off

Fan Off

Manual Pickup Off

PTL 없음

4.6.4 Self Test Button

If the Self-Test button pressed, vertical lines are printed.

Turn the power on while pressing this button, '89' shows in the DCU and the printer is warming up. After warmingup the printer is in READY Mode, and '88' shows in the DCU. In this mode, without any detection, the printer begins printing(trial printing and data from the PC). It is convenient to use this mode when the engine malfunction is detected in the control board.

4-10



4.7 Paper Path

BIN PATH

❶

SMPS

❷

Fuser

❸

Toner Cartridge

❹

LSU

❺

Exit Roller

❻

OPC

❼

Pick-Up Roller

❽

KNOCK-UP PLATE

❾

KNOCK-UP PLATE DOWN

❿

ASS’Y HOLDER PAD

Feed Sensor MAIN PBA

SMPS

HVPS

1) After taking order, the printer feeds the printing paper from the cassette or manual feeder.

2) The fad paper passes the paper feeding sensor. (Jam 0 occurs if the sensor is not operated after certain time passes)

3) The paper passed the paper feeding sensor moves to the paper exit sensor via printing process. (Jam 1 occurs if the sensor is not operated after certain time passes)

4) The paper passed the paper exit sensor moves out from the set. (Jam 2 occurs sometime after if the tailing edge of the paper is not coming out from the set after the leading edge of paper passes the paper exit sensor.)

BIN PATH

BIN PATH BIN PATH


4-11


4.7.1 Clearing Paper Jams

Occasionally, paper can be jammed during a print job. Some of causes include:

• The tray is overfilled.

• The front cover has been opened during a print job.

• Paper that does not meet paper specifications has been used.

• Paper that is outside of the supported size range has been

If a paper jam occurs, the On Line/Error LED on the control panel lights red. Find and remove the jammed paper.

If it is invisible, look inside the printer.

4.7.2 In the Paper Exit Area

1. If the paper jams as it exits to the output tray and a long portion of the paper is visible, pull the paper straight out.

When you pull the jammed paper, if there is resistance and the paper does not move immediately, stop pulling.

Continue with the next step.

2. Open the top cover and the inner cover.

H eat roller

4-12


x

3. Loosen the paper if it is caught in the heat rollers. Then pull the paper gently out.


4. Close the inner cover and the top cover.

5. Open and close the front cover. Printing can be resumed.

x


4-13


4.7.3 In the Paper Feed Area

1. Remove any missfeed paper by pulling it out by the visible edge from the tray. Make sure that all of the paper is properly aligned in the tray.

2. Open and close the front cover. Printing can be resumed.

4.7.4 Around the Toner Cartridge

1. Open the front cover.

4-14


x

2. Pull the toner cartridge out and remove it from the printer.


3. Gently pull the paper toward you.

4. Check that there is no other paper in the printer.

5. Reinstall the toner cartridge, and then close the cover. Printing can be resumed.

x


4-15


4.7.5 Tips for Avoiding Paper Jams

By selecting the correct paper types, most paper jams can be avoided.

• Ensure that the adjustable guides are positioned correctly.

• Do not overload the tray.

• Do not remove the paper from the tray while printing.

• Flex, fan and straighten the paper before loading.

• Do not use creased, damp or highly curled paper.

• Do not mix paper types in the input tray.

• Use only recommended print media.

• Ensure that the recommended print side is facing up when loading paper into the input tray.

4.7.6 Solving Print Quality Problems

Print Quality Checklist

Print quality problems can be resolved by following the checklist below.

• Redistribute toner in the toner cartridge

• Clean the inside of the printer

• Adjust the print resolution from the printer properties

• Ensure that the Toner Save mode is off

• Clear general printing problems

• Install a new toner cartridge, and check the print quality

4-16


x

x

Disassembly and Reassembly 5

5. Disassembly and Reassembly

5.1 General Precautions on Disassembly

When you disassemble and reassemble components, you must use extreme caution. The close proximity of cables to moving parts makes proper routing a must.

If components are removed, any cables disturbed by the procedure must be restored as close as possible to their original positions. Before removing any component from the machine, note the cable routing that will be affected.

Whenever servicing the machine, you must perform as follows:

1. Check to verify that documents are not stored in memory.

2. Be sure to remove the toner cartridge before you disassemble parts.

3. Unplug the power cord.

4. Use a flat and clean surface.

5. Replace only with authorized components.

6. Do not force plastic-material components.

7. Make sure all components are in their proper position.

Releasing Plastic Latches

Many of the parts are held in place with plastic latches.

The latches break easily; release them carefully.

To remove such parts, press the hook end of the latch away from the part to which it is latched.


5-1

Disassembly and Reassembly

5.2 Disassembly and Reassembly

5.2.1 Front Cover

1.Open the front cover.(The front cover and the cassette tray are assembled with the same assembly.)

2.Separate the cover from the lock of the frame by pulling the right bottom of the cover toward the arrow direction. Pull out the front cover to the left as shown as below.

1

2

Cassette Tray Front Cover

5.2.2 Cassette Tray

1.For separating only cassette tray,open the tray.

2.Hold the set and lift up the hook on the left bottom toward the arrow direction.Separate the cassette tray by pulling it out to the left as shown as below.

1

5-2


Cassette Tray

2 x

5.2.3 SMPS Cover

1.Release two screws.

(Screw x2:Silver_M3,6003-000196)


2.Separate the lock by holding the left side of the cover and pulling it toward the arrow direction. Remove it with carefulness that the power switch is not hooked on SMPS cover as shown as below.

1

2

SMPS Cover

5.2.4 Main Cover

1.Before Disassembling.

-Separate the font cover.(Refer to 5.2)

-Separate the SMPS cover.(Refer to 5.3)

2.Release 4 screws as shown as below.

(Screw x 4 : Silver_M3,6003-000196)


5-3

x


3.Hold the both ends of the cover and pull it up bit by bit toward the arrow direction as shown as below.

4.Separate it by holding the both sides of the main cover and carefully lifting it up.

Main Cover

5.If necessary,remove the jam cover.Open the cover, take out the hook on the right toward the arrow direction, and then take out the jam cover to the right side.

Jam Cover

2

1

5-4


x

5.2.5 Top Cover




-Separate the Main cover.(Refer to 5.4)


2.For separating the LED lens and the On-Line key, release the 5 screws connected to the main cover, and then 4 locks on the front and rear of the top cover by using a screw driver.Remove the top cover from the main cover.

(Screw x 5:Silver_M3,6003-000196)

Top Cover

Main Cover

1

2

3.Unscrew 2 screws from the separated top cover as shown as below,and then separate the LED Lens from the On-Line key.

(Screw x 2:Silver_M3,6003-000196)

On-Line Key

LED Lens


5-5

x


5.2.6 HVPS





2.Remove the sheet by releasing the 5 screws which connects the HVPS and the Sheet.

(Screw x 3:Gold_M3,6003-000269)

HVPS Sheet

3.Separate the HVPS with HVPS ground from the frame by releasing the remaining 3 screws.

(Screw x 3:Gold_M3,6003-000269)

4.Remove the connector from the separated HVPS.

HVPS Ground

HVPS

5-6


x

5.2.7 RX Drive

1.Before Disassembling





2.Release 2 screws (Screw x 2:Silver_M3,6001-

000130)connected to the engine shield and 6 screws

(Screw x 6:Gold_M3,6003-000296)connected to the frame. Separate the RX drive by pulling it out toward the arrow direction.

3.Remove the connector from the separated RX drive.

4.After removing the RX drive,RDCN Gear, OPC Gear,

Fuser Gear, and Feed Gear can be removed from the frame.

Fuser Gear

RX Drive

RDCN Gear

OPC Gear

Feed Gear x

Note: Please, be careful not to touch the protruding 4 screws at the outside of the RX drive.


5-7


5.When separating the motor,remove the motor bracket first by removing 4 screws as shown as below, and then remove the 2 screws from the motor bracket.

Gear Bracket

RX Motor

Motor Bracket

5.2.8 Fuser





2.Separate 2 connectors from the SMPS and the Main

PBA as shown as below.

Thermister

Fuser

5-8


x


3.Separate the fuser by unscrewing 4 screws on the frame.

(Screw x 4:Gold_M3,6003-000269)

4.After removing the Lamp Cover L/R, separate the

Fuser Dummy cover.

Lamp Cover_R

Fuser

Fuser Dummy Cover

Lamp Cover_L

5.Separate the Exit roller F/Down and the exit gear

(DRV17)by turning the left/right holder connected to the exit roller F/Down to the arrow direction.At this time,roller_main,roller_FR, F/Down Holder,and spring are separated with theses.

Exit Gear

Roller_FR

Roller_Main

F/Down Holder

Exit Roller F/Down

Holder

6.Remove the thermo cap by releasing 2 screws as shown as below.

(Screw x 2:Black_M3,6003-000282)

Thermo Cap x

Note : Under the condition that the fuser is connected to the frame,the exit roller F/Down can be separated.However,be careful that the Roller_Main,the Roller_FR,and F/Down Holder could get into the inner frame due to the spring’ action.


5-9


7.After pulling out the thermostat as shown as below, remove the CBF harness from its left/right side.

8.Release the screw as shown as below, remove the harness from the cover, and then pull out the thermistor.

(Screw x 1:Black_M3,6003-000196)

Thermistor

Thermostat

9.After separating the CBF harness connected to the left/right side of the halogen lamp, release 2 screws from the halogen lamp.

(Screw x 2:Black_M3,6003-000196)

10.Separate the Cover-M by releasing 2 screws as shown as below.

(Screw x 2 : Black_M3, 6003-000196)

Cover-M

5-10


x


11.Remove the halogen lamp from the heat roller by pulling it out to the arrow direction.

Halogen Lamp

Heat Roller

5.2.9 Engine Shield (Including Main PBA and SMPS)





2.Disconnect all connectors except the connector which connects the SMPS to the Main PBA.

Thermister

Clutch

LSU

Motor

HVPS

Fuser


5-11

x


3.Release 6 screws as shown as below, separate the harnesses from the shield,and then separate the engine shield with carefulness of the actuator feed sensor lever.

(Screw x 6:Silver_M3,6003-000196)

Engine Shield

(W/Main PBA, SMPS)

4.For removing only SMPS, perform the follows in order : separate the SMPS cover (Refer to the 5.3), release 5 screws, separate the fuser connector and the main PBA connector, and then take out the

SMPS.

(Screw x 5 : Gold_M3, 6003-000269)

SMPS

Actuator Feed Sensor Lever

5. For removing only Main PBA, perform the follows in order : separate the SMPS cover (Refer to the

5.3), release 3 screws, separate the main PBA connector, and then take out the main PBA.

(Screw x 3 : Gold_M3, 6003-000269)

Main PBA

5-12


x

5.2.10 LSU






2.Release 3 screws as shown as below, lift up the LSU, and then disconnect 2 connectors from the separated LSU.

(Screw x 2:Silver_M3,6003-000196)

LSU

5.2.11 Paper Path Frame





-Separate the Fuser.(Refer to 5.8)

-Separate the Engine shield.(Refer to 5.9)

2.After releasing 4 screws as shown as below, take it out toward the arrow direction with carefulness of ground and harnesses.

(Screw x 4:Silver_M3,6003-000196)

Paper Path Frame


5-13

x


3.After releasing the 2 hooks from the right side of the frame,take out the transfer roller.

(Screw x 2:Silver-M3,6003-000196)

4.Remove the solenoid-MP by releasing the screw from the left side of the frame.

(Screw x 1:Gold_M3,6003-000301)

Bush

Transfer Roller

Bush(L)

1

2

Solenoid-MP

5.2.12 Pick_Up Roller

1.For separating the pick-up roller sponge, open the front cover, and then take out the toner cartridge.

2.While pressing the hooks on the left/right side of the pick-up housing B, pull out the pick-up housing U as shown as below.Then,replace the sponge.

Toner Cartridge

1

Housing B

2

Housing U

Sponge

5-14


x

x

6

6. Troubleshooting

6.1 Checking Symptoms

Before attempting to repair the printer first obtain a detailed description of the problem from the customer.

Troubleshooting

Power On

On-Line LED

ON?

On-Line LED

Green OK?

Print(test pattern) printing

Quality is

Nomal?

END

- No Power

- Power Module error

- Main PBA

Indicate

"Lamp toggle"

Refer to "Solution of Image Problem"

Refer to

"Chapter 4.4"


6-1

Troubleshooting

6.1.1 Basic Check List

1. Check the Power.

• Does "Warming Up" appear on the display?

--> If not check power cable, switch or SMPS.

--> Does the wall socket work?

• Do the Motors or other components initialize (listen for main motor, fan and LSU sounds)?

--> If not or there are none of the normal startup sounds check cable, switch or SMPS.


2. Check the LED of Panel.

• Is there On-Line LED ON?

--> If not check power cable, switch SMPS or Main board.


• Is the abnormal Lamp?

--> Check the main PBA and cable harness.

3. Check the Paper Path

• Is there a Paper Jam?

--> Remove any paper fragments caught in the paper path.

• Paper Jam occurs repeatedly at a specific point in the Paper Path

--> Open the fuser cover, Jam clear.

--> Dismantle the machine and carefully inspect the region where the jam occurs.

(Especially, check if paper fragments are caught in the Fuser

4. Print the Information Page (Configuration).

• Try printing a test page from a computer.

--> If there is an error check cables and driver installation.

5. Check the Print Quality.

•Is there are a Print Quality Problem?

--> Refer to section 6.5 (Page 6-17).

6. Check consumables (toner etc.).

•Using the keys print the Test Pattern.

--> Expected life of various consumable parts, compare this with the figures printed and replace as required

6-2


x

x

Troubleshooting

6.1.2 Initial Inspection

1. Check Power part

1. The printer does not work no matter how long you wait.

A. Is the Power Switch (printer and wall socket) turned on ?

B. Is the Power Cord connected to the printer correctly ?

C. Is the Power cord connected to the wall socket correctly ?

D. Is wall socket working ?

E. Is the unit rated at the same voltage as the supply ?

2. Does the Fan work when power is turned on?

A. Check the connectors on the SMPS.

B. Check the fuses in the SMPS.(F1)

2. Check the Installation Environment.

1. Ensure the installation surface is flat, level and free from vibration.

If necessary move the printer.

2. Ensure that the temperature and humidity of the surroundings are within specification


3. Ensure that the printer is position away from any air conditioning or other heating or cooling equipment. Also ensure that is not positioned in a direct draft from any air conditioning, fan or open window.


4. Ensure the printer is not positioned in direct sunlight.

If it is unavoidable use a curtain to shade the printer.

5. Ensure the printer is installed in a clean dust free environment.

Move the printer to clean area if necessary.

6. Some industrial or cleaning processes give of fumes which can affect the printer.

Move the printer away from this type of air pollution

3. Check paper type.

1. Use only paper which is of a suitable quality, weight and size?

See the user guide.

4. Check the overall condition of the printer

1. Is the printer properly maintained ?

Clean the Paper Transport Passages.

Any rollers with dirt surfaces should be cleaned or replaced.


6-3

Troubleshooting

6.2 Bad discharge

6.2.1 Wrong Print Position

• Description

Printing begins at wrong position on the paper.

Wrong sense time caused by defective feed sensor actuator.

Check and Cause Solution

Replace the defective actuator

6.2.2 JAM 0

BIN PATH

Check and Cause

1. Check the Solenoid by using DCU diagnostic mode

06.

2. Check if the pad is loose due to bad sealing of the side-pad.

3. Check the surface of the roller-pickup for foreign matter.

4. If the paper feeds into the printer rand Jam 0 occurs, perform DCU to check feed-sensor of the engine board.

• Description

1. Paper is not exited from the cassette.

2. Jam-0 occurs if the paper feeds into the printer.

Solution

1. Replace the solenoid.

2. Replace the side-pad Assembly L or R, if necessary.

3. Clean with soft cloth dampened with IPA(Isopropyl

Alcohol) or water.

4. Replace the SMPS, HVPS or Sensor.

6-4


x

Troubleshooting

6.2.3 JAM 1

BIN PATH

Check and Cause

1. If the recording paper is jammed in front of or inside the fuser. (Perform DCU diagnostic code 08)

2. If the recording paper is stuck in the discharge roller and the fuser just after passing through the Actuator-

Feed, Feed Actuator may be defective.

6.2.4 JAM 2

• Description

1. Recording paper is jammed in front of or inside the fuser.

2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the Actuator-Feed.

1. Replace the SMPS.

Solution

2. Reassemble the Actuator-Feed and Spring-Actuator if the returning is bad.

BIN PATH

Check and Cause

1. If the paper is completely fed out of the printer, but Jam

2 occurs : Exit sensor is defective.

• After the paper is completely discharged, actuator

Exit should return to the original position to shut the photo-sensor. Sometimes it takes longer hour than it should and does not return.

2. If the paper is rolled in the Fuser Roller:

• This occurs when a Guide claw is broken away or transformed.

• It occurs when the Spring of a Guide claw is broken away or transformed.

• It occurs when the Heat-Roller or Pressure-Roller is seriously contaminated with the toner.

3. Paper is accordion in the fuser.

• Description

1. Recording paper is jammed in front of or inside the fuser.

2. Recording paper is stuck in the discharge roller and in the fuser just after passing through the Actuator-Feed.

Solution

1. Check if the exit sensor actuator is defective.

• Check if the actuator exit is unformed (Check if the lever part is unformed in shape).

• Check whether burrs occur in the assembly part of the actuator exit or not and if the actuator is smoothly operated.

• Check if foreign matters and wire get caught in the actuator exit's operation.

2. If the paper is stuck in the fuser : disassemble the fuser and remove the jammed paper, and clean the surface of the pressure roller with dry gauze.

3. Remove the jammed paper after disassembling the fuser : Clean the surface of the pressure roller with dry gauze.

• Remove the toner particles stained on the rib.

• Check the assemblage and performance of the exit.


6-5

x

Troubleshooting

6.2.5 Multi-Feeding

• Description

Multiple sheets of paper are fed at once.

Check and Cause

1. Solenoid malfunction(the solenoid does not work properly): Perform DCU Diagnostic Code 06.

2. Pad-Friction is contaminated with foreign matter.(oil...)

3. The face of paper is blended.

Solution

1. Replace the solenoid if necessary.

2. Clean the pad friction with soft clothe dampened with IPA(Isopropyl Alcohol).

3. Use the smooth paper.

6.2.6 Paper rolled in the Fuser

• Description

If contaminated at intervals of 57mm on the back of a paper.

Check and Cause

1. Contamination of the pressure roller or heat roller (Background, Hot off set).

2. Check the claw of the fuser whether it is unfitted.

Solution

1. After disassembling the fuser, clean contamination between the heat roller and the thermostor and remove the contamination of the pressure roller.

2. If there is heavy background, repair it by the background troubleshooting method.

3. The surface of the heat roller with IPA or water

4. Check the warp or separation of the sprint claw and the holder plate claw, and then manage it.

6-6


x

Troubleshooting

6.2.7 Paper rolled in the Toner Cartridge (OPC Drum)

• Description

Paper is rolled up in the OPC.

Check and Cause

1. Paper is too much thin.

2. The face of paper is curled.

Solution

1. Recommend to use normal paper.

2. How to remove the rolled in the OPC Drum.

• Remove the paper while turning the OPC

Drum against the ongoing direction.

x


6-7

Troubleshooting

6.3 Malfunction

6.3.1 All LEDs blinking (Fuser Error)

• Description

1. All the lamps on the operator panel blink.

2. Gear of the fuser does not work and breaks away melt away.

When printing, motor breaks away from its place due to defective fuser gear.

Check and Cause

1. Check if the thermostat, AC wire and Heat Lamp is open.

2. Check if the thermistor sensor is in place.

3. Check if the heat lamp works properly.

4. Check if the overheat circuit works properly.

5. The fuser gear is defective due to melting away.

Solution

1. If the thermostat is open replace the fuser and check following items.

2. If the thermistor sensor device is located deep in the sponge, replace the fuser.

3. Check if the circuit of overheat mode works properly.

4. Run DCU mode : Perform DCU diagnostic code 10.

5. Replace Fuser.

6.3.2 All LEDs blinking (Scan Error)

• Description

1. All lamps on the operator panel blink.

Check and Cause

DCU Mode : Perform DCU diagnostic code 05. If the DCU error code 95 is displayed, replace LSU.

Replace LSU.

Solution

If you cannot solve the problem after you replace LSU, replace the main board.

6-8


x

x

6.3.3 Not function of the gear of the fuser due to melting away

• Description

The motor breaks away from its place due to gear melting away.

Check and Cause

DCU Mode : Check if the Error States '60' '62' '68' occur.

Check the operation of Fuser Erasing Lamp

On/Off with the Error Code Check -10-.

1. Replace the Fuser.

Solution

2. Replace the Main Control board.

Troubleshooting

6.3.4 Paper Empty

• Description

The paper lamp on the operator panel is on even when paper is loaded in the cassette.

Check and Cause

1. Bending or deformation of the actuator of the paper sensor.

2. The function of the engine board is defective Perform

DCU mode : Perform DCU diagnostic code 8.

Solution

1. Replace the defective actuator.

2. Replace the engine board.

6.3.5 Paper Empty without indication

• Description

The paper lamp on the operator panel does not come on when the paper cassette is empty.

Check and Cause

1. Bending or deformation of the actuator of the paper sensor.

2. The function of the engine board is defective Perform.

DCU mode : Perform DCU diagnostic code 8.

Solution

1. Replace the defective actuator.

2. Replace the engine board.


6-9

Troubleshooting

6.3.6 Cover Open

• Description

The ERROR lamp is on even when the print cover is closed.

Check and Cause

1. The Hook Lever in the top cover may be defective.

Solution

1. Replace the hook lever, if defective.

2. Check the connector (Engine B’d

↔

HVPS) and circuit of the cover switch department in the Main Control board.

Perform DCU mode : If Error state '64' occurs, Check the related codes of the Cover Open Error.

2. Check the insertion of the Cover Open S/W

Connect.

3. Replace the Main Control board or Cover Open

S/W.

6.3.7 No lamp on when the cover is open

• Description

The ERROR lamp does not come on even when the printer cover is open

Check and Cause

1. Check the connector and circuit of the cover switch department in the Main Control board. Perform DCU mode : If Error state '64' occurs, Check the related codes of the Cover Open Error

Solution

1. Check the insertion of the Cover Open S/W

Connect.

2. Replace the Main Control board or Cover Open

S/W.

6-10


x

Troubleshooting

6.3.8 Defective motor operation

• Description

Main motor is not driving when printing, and paper does not feed into the printer, resulting 'Jam 0'.

Check and Cause

1. Motor harness or sub PCB may be defective.

Solution

1. Check the motor harness, replace it, if defective.

2. Perform DCU diagnostic code 00 and Check the motor operation.

2. Replace the SMPS, if necessary. x

6.3.9 No Power

• Description

When system power is turned on, all lamps on the operator panel do not come on.

Check and Cause

1. Check if the power input and SMPS output are normal.

Solution

1. Replace the power supply cord or SMPS.

2. Check the inferiority of LED-Panel on the front-cover if the LED of Panel does not appear after normal warmingup.

2. Replace the control board.

3. Replace the LED-panel.


6-11

Troubleshooting

6.3.10 Vertical Line Getting Curved

• Description

When printing, vertical line gets curved.

Check and Cause

1. If the supply of +24v is unstable in the Main Control board linking with LSU, check drive by DCU Mode : LSU Check

-05- LSU Motor on.

1. Replace LSU.

Solution

2. Replace the Main Control board.

6-12


x

x

Troubleshooting

6.4 Bad Software Environment

6.4.1 The printer is not working (1)

• Description

While Power turned on, the printer is not working in the printing mode.

Check and Cause

1. Run Self-Test Mode : Turn the power on while pressing the test printing button for 2 or 3 seconds before printing works.

2. Check if the PC and the printer is properly connected and the toner cartridge installed.

Solution

1.Check the power of the printer and perform the Self-

Test. If the test printing works, that means no problems in the printer itself. If the test printing does not work, that means bad functioning of the printer(not because of software). Perform DCU to check the

Error Status.

2. Replace the printer cable. If the problems not solved even after the cable replaced, check the amount of the remaining tone.

3. Printing is nor working in the Windows.

3. Check if the connection between PC and printer port is proper. If you use windows, check if the printer driver in the controller is set up. If the printer driver is properly set up, check in which program the printing is not working. The best way to find out is to open the memo pad to check the function of printing. If it is not working in a certain program, adjust the setup the program requires. Sometimes, the printout is normal within the Windows basic programs, but it's not working in a particular program. In such case, install the new driver again. If not working in the Windows basic program, Check the setup of the port of CMOS is on

ECP. And check the address of IRQ 7 and 378

4. Check if the printer cable is directly connected to peripheral devices

4. If the scanner needs to be connected to the printer, first the remove the scanner from the PC to see if the printer is properly working alone.


6-13

Troubleshooting

6.4.2 The printer is not working (2)

• Description

After receiving the printing order, no response at all or the low speed of printing occurs due to wrong setup of the environment rather than malfunction of the printer itself.

Check and Cause

1. Secure more space of the hard disk.

2. Printing error occurs even if there is enough space in the hard disk.

Solution

1. Not working with the message 'insufficient printer memory' means hard disk space problem rather than the RAM problem. In this case, provide more space for the hard disk. Secure more space using the disk utilities program.

2. The connection of the cable and printer port is not proper. Check if the connection is properly done and if the parallel port in CMOS is rightly set up.

3. Check the parallel-port-related items in the CMOS

Setup.

4. Reboot the system to print.

3. As a printer port, Select ECP or SPP among

SPP(Normal), ECP, and EPP modes(increase printing speed) SPP normal mode support 8-bit data transfer, while ECP Mode transfer the 12-bit data.

4. If the regular font is not printing, the cable or the printer driver may be defective.

Turn the PC and printer off, and reboot the system to print again. If not solved, double-click the printer in my computer If the regular fonts are not printed this time again. the cable must be defective so replace the cable with new one.

6-14


x

Troubleshooting

6.4.3 Abnormal Printing

• Description

The printing is not working properly even when the cable has no problem.

(even after the cable is replaced)

If the printer won't work at all or the strange fonts are repeated, the printer driver may be defective or wrong setup in the CMOS Setup.

Check and Cause

1. Set up the parallel port in the CMOS SETUP.

Solution

1. Select SPP(Normal) or ECP LPT Port the among

ECP, EPP or SPP in the CMOS Setup.

2. Printer Driver Error.

2. Check the printer in My Computer.(to see if the printer driver is compatible to the present driver or delete the old driver, if defective and reinstall the new driver)

3. Error message from insufficient memory.

(The printing job sometimes stops or due to insufficient virtual memory, but it actually comes from the insufficient space of the hard disk.)

3. Delete the unnecessary files to secure enough space of the hard disk and start printing job again.

x


6-15

Troubleshooting

6.4.4 SPOOL Error

• Description

To spool which stands for "simultaneous peripheral operations online" a computer document or task list (or "job") is to read it in and store it, usually on a hard disk or larger storage medium so that it can be printed or otherwise processed at a more convenient time (for example, when a printer is finished printing its current document).

Check and Cause

1. Insufficient space of the hard disk in the directory assigned for the basic spool.

Solution

1. Delete the unnecessary files to provide more space to start printing job.

2. If the previous printing error not solved.

3. When expected to collide with other program.

2. If there are some files with the extension name of

****.jnl, Delete them and Reboot the Windows to restart printing job.

3. Shut down all other programs except the current one, if possible.

4. Delete the printer driver completely and reinstall it.

4. When an application program or the printer driver is damaged.

5. When some files related to OS are damaged or virus infected.

5 After rebooting the computer, check for viruses, restore the damaged files and reinstall the program to do the printing job.

6. Memory is less than suggested one.

6. Add up enough memory to the PC.

How to delete the data in the spool manager.

In the spool manager, the installed drivers and the list of the documents waiting to be printed are shown.

Select the document to be deleted and check the delete menu.

If you intend to delete the current document being printed, the data being transferred to the printer will be put out and then the document is removed. Before choosing the document, the menu is still inactive.

Or put the document out of the list and repeat the routine as in the above or finish the spool manager.

6-16


x

Troubleshooting

6.5 Bad image

6.5.1 Vertical Black Line and Band

• Description

1. Straight thin black vertical line occurs in the printing.

2. Dark black vertical band occur in the printing.

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Check and Cause

1. Damaged develop roller in the Developer.

Deformed Doctor-blade or cleaningblade.

Solution

1. If causes 1 and 2 occur in the developer cartridge, replace the developer and try to print out.

2. Scratched surface of the discharge roller in the developer.

3. Partly depression or deformation on the surface of the transfer roller.

2. Replace the transfer roller if occurred as

No. 3.

x

6.5.2 Vertical White Line

• Description

White vertical voids in the image.

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Check and Cause

1. Foreign matter stuck onto the window of internal lenses of LSU mirror.

Solution

1. Foreign matter stuck onto the window :

Clean the LSU window with recommended cleaner(IPA) Clean the window with a clean cotton swab.

2. Foreign matter in the LSU : Open the cover of LSU and clean with a cotton swab on the surface of the reflex mirror.

2. Foreign matter or toner particles between the developer roller and blade.

(In case the life of the developer has been expired, white lines or light image occur in front of the image.)

3. It may occur when Burr and foreign substances are on the window of the developer frame.

4. If the fuser is defective, voids occur periodically at the top of a black image.

3. No 3. : Remove the foreign matter and burr of the exposure window.

(Developer cartridge)

4. No. 4. : Open the front cover and check ribs that corresponds to the position of the voids. Remove if found.

5. If the problems are not solved, replace the developer cartridge.


6-17

Troubleshooting

6.5.3 Horizontal Black Band

• Description

1. Dark or blurry horizontal stripes occur in the printing periodically.

(They may not occur periodically.)

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

1. Bad contacts of the voltage terminals to developer.

Check and Cause Solution

1. Clean each voltage terminal of the Charge,

Supply, Develop and Transfer roller.

(remove the toner particles and paper particles)

2. Clean the right Gear that has relatively small gap of the teeth in the OPC.

2. The rollers of developer may be stained.

OPC Drum = 75.5mm

Charge Roller = 37.7mm

Supply Roller = 47.5mm

Develop Roller = 35.2mm

Transfer Roller = 46.2mm

Heat Roller = 63.9mm

Pressure Roller = 75.4mm

3. If the malfunction persists, replace the developer.

6.5.4 Black/White Spot

• Description

1. Dark or blurry black spots occur periodically in the printing.

2. White spots occur periodically in the printing.

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Check and Cause

1. If dark or blurry black spots occur periodically, the rollers in the Developer may be contaminated with foreign matte or paper particles.

( Charge roller : 37.7 mm interval

OPC drum : 75.5 mm interval)

2. If faded areas or voids occur in a black image at intervals of 75.5 mm, or black spots occur elsewhere, the OPC drum surface is damaged.

3. If a black image is partially broken, the transfer voltage is abnormal or the transfer roller's life has expired.

Solution

1. Run OPC cleaning Mode Print and run the

Self-test 2 or 3 times.

2. In case of 75.5 mm interval unremovable in

1, cleanly remove foreign substances stuck on the OPC location equivalent to black spots and white spots with a dry duster.

sheets printing. If the roller's life is expired, replace it.

4. In case of 37.7 mm interval unremovable in

1, take measures as to replace the developer cartridge and try to print out.

5. Clean the inside of the set against the paper particles and foreign matter in order not to cause the trouble.

6-18


x

x

Troubleshooting

6.5.5 Light Image

• Description

The printed image is light, with no ghost.

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Check and Cause

1. Develop roller is stained when the toner of developer cartridge is almost consumed.

2. Ambient temperature is below than 10°C.

3. Bad contact caused by the toner stains between the high voltage terminal in the

HVPS and the one in the set.

4. Abnormal output from the HVPS.

Solution

1. Check if the Toner Save mode is off.

2. Replace the developer cartridge and try to print out.

3. Wait 30 minutes after printer is powered on before you start printing.

4. Clean up the contaminated area by the toner.

5. Replace the HVPS if the problems are not solved by the above four directions.

6.5.6 Dark Image or a Black

• Description

The printed image is dark.

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Check and Cause

1. No charge voltage in the engine board.

( Perform DCU diagnostic code 01)

2. Charge voltage is not turned on due to the bad contacts between power supply in the side of the Developer and charge terminal of HVPS.

Solution

1. Clean the high voltage charge terminal.

2. Check the state of the connector which connects the engine board and HVPS.

3. Replace the HVPS if not solved by the above direction 1 and 2.


6-19

Troubleshooting

6.5.7 Uneven Density

• Description

Print density is uneven between left and right.

Check and Cause

1. The pressure force on the left and right springs of the transfer roller is not even, the springs are damaged, the transfer roller is improperly installed, or the transfer roller bushing or holder is damaged.

2. The toner level is not even on the developer roller due to the bad blade.

Solution

1. Replace both the left and right Spring

Holder.

2. Occur in the developer cartridge, replace the developer and try to print out.

6.5.8 Background

• Description

Light dark background appears in whole area of the printing.

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Check and Cause

1. Does character exist less than 2% per a page, and hasn’t it been used long time?

2. Does recycle paper be used?

3. Has the life span of the developer ended?

4. Is the movement(Up and Down) of the transfer roller smooth?

5. Is the HVPS normal?

Solution

1. The toner cartridge is basically designed to print 3 ,000 sheets with

5% image.

2. The B/S is not guaranteed if using recycle paper.

3. Replace the developer when the life span of it has been ended.

4. Clean the bushing part of the transfer roller.

5. If the problem is still not solved, replace the developer.

6-20


x

x

Troubleshooting

6.5.9 Ghost (1)

• Description

Ghost occurs at 75.5 mm intervals of the OPC drum in the whole printing.

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Check and Cause

1. Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the electrode of the Developer.

2. Bad contacts caused by contamination from toner particles between high voltage terminal in the main body and the one in the HVPS board.

3. The life of developer is expired.

Solution

1. Clean the terminals when contaminated by toner particles.


3. Replace the engine board if not solved by the above directions 1-2.

4. Transfer roller lifetime(50.000 sheets) has expired.

4. If not solved by the direction 3, check the transfer roller lifetime and replace it.

5. Abnormal low temperature(below 10°C).

5. Wait about 1 hour after power on before using printer.

6.5.10 Ghost (2)

• Description

Ghost occurs at 75.5 mm intervals of the OPC drum in the whole printing.

(When printing on card stock or transparencies using manual feeder)

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Check and Cause

When printing on card stock thicker than normal paper or transparencies such as OHP, higher transfer voltage is required.

Solution

Select 'Thick Mode' on paper type menu from the software application and after using returning to the original mode is recommended.


6-21

Troubleshooting

6.5.11 Ghost (3)

• Description

White ghost occurs in the black image printing at 47.5mm intervals.

Check and Cause

1. The life of the developer may be expired.

2. The abnormal voltage and bad contact of the terminal of the supply roller

Solution


2. Check the approved voltage of the supply roller and contact of the terminal and adjust if necessary.

6.5.12 Ghost (4)

• Description

Ghost occurs at 47.5mm(or 63.9mm) intervals.

Check and Cause

The temperature of the fuser is maintained high.

Solution

1. Disassemble the fuser and remove the contaminated toner particles on the roller and clean the foreign matter between

Thermistor and Heat roller.

( Caution : can be deformed)

6.5.13 Stains on the Face of Page

• Description

The background on the face of the printed page is stained.

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Check and Cause

1. Toner leakage due to improperly sealed developer.

2. If the transfer roller is contaminated, stains on the face of page will occur.

Solution

1. Replace the developer cartridge.

2. If the transfer roller is contaminated, run PC

Cleaning Mode Print 2 or 3 times.

And perform Self-Test 2 or 3 times to remove contamination.

6-22


x

Troubleshooting

6.5.14 Stains on Back of Page

• Description

The back of the page is stained at 47 mm intervals.

Check and Cause

1. Transfer roller is contaminated.

Digital

Digital Pri

Digital Printer

Digital Printer

Digital Printer

2. Pressure roller is contaminated.

Solution

1. Perform the OPC Cleaning Mode Print 2 or

3 times. Run Self-Test to remove the contamination of the transfer roller.

2. Replace the transfer roller if contaminated severely.

3. Disassemble the fuser and clean the

H/R(Heat Roller) and P/R(Pressure roller).

And check the area between H/R and

Thermistor. If contaminated, clean the area not to be deformed.

6.5.15 Blank Page Print out (1)

• Description

Blank page is printed.

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Digital Printer

Check and Cause

Bad ground contacts in OPC and/or developer.

Solution

Remove contamination of the terminals of the developer and the unit.

x

6.5.16 Blank Page Print out (2)

• Description

1. Blank page is printed.

2. One or several blank pages are printed.

3. When the printer turns on, several blank pages print.

Check and Cause

1. Bad ground contacts in OPC and/or developer.

2. Abnormal solenoid.

Solution

1. Remove contamination of the terminals of the developer.

2. Perform the engine self test using DCU to check if the Solenoid is normal.(refer to code 06)

3. If not solved by the above directions 1-2,

Replace the engine board.

4. Turn the power off, delete the data of PC and try printing again.


6-23

x

7

7. Exploded Views and Parts List

Contents

7.1 Main Assembly

7.2 Frame Assembly

7.3 Fuser Unit

7.4 Paper Path Assembly

Exploded Views & Parts List

p.7-2 p.7-3 p.7-4 p.7-5

Part Number & Description format.

Part numbers and descriptions are defined according to a company standard. The information below will help you to understand the part number format and assist when ordering spare parts.

There are two types of Part number format.

number letter

This format is used on all product ranges.

Typically it is used for small components and electronic parts.

This format is controlled by individual Divisions and is used on specific products, typically for mechanical parts. Type 2 format part numbers fall into 2 categories:

Assemblies consisting of 2 or more parts. Also used for Service manuals, user guides and diagrams.

Ass’y parts and A/S privately used Parts can be distinguished by the part Code and Description.

They are always Type 2 format. The 2 leading characters indicate private or assembly parts.


7-1


7.1 Main Assembly

0

9

12

4

6

1

24

2-1

2-2

2-3

7

15

15-1

15-2

16

11

2-7

2-6

2-8

2-5

2

2-4

5

14

8

10

18

17

13

20

3-4

3-2

3

3-3

19

3-1

7-2


x



x

19

8

5

5-1

5-3

5-2

5-4

5-5

2

11

13

12

4

14

0

2-3

2-1

2-4

2-2

2-3

1

20

4

16

17

15

10

9

7

10

6


7-4


7.3 Fuser Unit

21

28

27

26

20

0

30

4

32

3

33

5

1

29

9

8

16

15

17

18

2

11

12 7

6

10

14

34

19

22 23

25

24

13

31

7

6

7-5


x


7.4 Paper Path Unit

0 x

22

16

14

11

12

11-3

11-2

11-1

13

24

21

18

19

9-2

10

9-1

10

9-3

9

17

25

15

16

5

3

6

2

4

1

7

8

23

26

20

24


7-6

ExplodedView Parts List

< Service Parts List >

▣ SA: Service Available, SNA: Service not Available

Draw# Location SEC.Code

Description Qt'y SVC Remark

7.1 Main

7.1-0 -

Phaser 3117 SET - -

7.1-1 F2090 JC96-03349A ELA UNIT-FRAME_LOWER 1 SA

001N00465

7.1-2

7.1-2-1

7.1-2-2

T4062 JC97-02177A MEA UNIT-COVER MAIN

Z5090

Z5092

JC61-01155A GUIDE-M-STACKER_RX

JC61-01156A GUIDE-M-SUB STACKER

1

1

1

SA

SA

002N02426

SA

7.1-8

7.1-9

7.1-10

7.1-10

7.1-11

7.1-12

7.1-13

7.1-14

7.1-15

7.1-15-1

7.1-15-2

7.1-16

7.1-17

7.1-18

7.1-19

7.1-19

7.1-20

7.1-2-3

7.1-2-4

7.1-2-5

7.1-2-6

7.1-2-7

7.1-2-8

7.1-3

7.1-3-1

7.1-3-2

7.1-3-3

7.1-3-4

7.1-4

7.1-5

7.1-6

7.1-7

7.1-7

Z2168 JC63-00618A COVER-M_TOP

Z2198 JC63-00619A COVER-M-MAIN

D0027 JC63-00620A COVER-M-JAM

K0045 JC64-00184A KEY-M-ONLINE

A1013 JC66-00816A LEVER-M-ACTUATOR JAM

W3274 JC67-00079A LENS-M_LED

Z2409 JC97-02176A MEA UNIT-COVER FRONT

Z2146 JC63-00616A COVER-M_FRONT(DEVE)

K3955 JC63-00617A TRAY-M-CASSETTE

E5013 JC63-00628A TRAY-M-EXTENSION LARGE

E5014 JC63-00629A TRAY-M-EXTENSION SMALL

L7012 JC59-00023A UNIT-LSU

S7009 JC63-00621A COVER-M-SMPS

T2060 JC96-03352B ELA UNIT-DEVE INITIAL,

F4038 JC96-03401A ELA HOU-FUSER 220V


E2108 JC63-00632A SHIELD-P-ENGINE

L7002 JC39-00406A CBF HARNESS-LSU

S7050 JC44-00081A SMPS-(V2C)

S7050 JC44-00080A SMPS-(V1)

Z1024 JC92-01640A PBA MAIN-USB_ONLY

M2053 JC39-00405A CBF HARNESS-MOTOR

H1098 JC39-00400A CBF HARNESS-HVPS

H1247 JC39-00402A CBF HARNESS-SMPS

K3197 JC96-01672A ELA UNIT-TERMINAL TR L

Z4197 JC61-00031A SPRING ETC--HV LARGE

S4027 JC70-40912A ICT-SHAFT HV LARGE

S7027 JC44-00079A HVPS-SKYLARK

D2132 JC63-00722A HEET-HVPS

K3232 JC63-00631A GROUND-P-HVPS

K2903 3903-000085 CBF-POWER CORD, 110V

K2903 3903-000042 CBF-POWER CORD, 220V

P5151 JC61-01170A PLATE-P-CHANNEL

1

1

1

2

1

1

1

5

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

SNA

SNA

SA

SNA

SA

SNA

SA

SNA

SNA

SNA

SNA

SA

122N00243

SA

SNA

SA

126N00245 ☞

SA

☞

AC 110V

SNA

120N00480

SA

SA

SA

☞

105N02062

☞

AC 110V

SA

SA

152N11623

SA

SA

152N11625

SA

116N00244

SA

009N01410

SA

105N02068

SA

SA

SNA

SA

105N02072

SA

SA

015N00557

< 6 >





7.2-0

7.2-1

7.2-2

7.2-2-1

7.2-2-2

7.2-2-3

7.2-2-4

7.2-3

7.2-4

7.2-5

7.2-5-1

7.2-5-2

7.2-5-3

7.2-5-4

7.2-5-5

7.2-6

7.2-7

7.2-8

7.2-9

7.2-10

7.2-11

7.2-12

7.2-13

7.2-14

7.2-15

7.2-16

7.2-17

7.2-18

7.2-19

7.2-20

F2090

B0080

K3602

K5002

P2158

K5006

K5007

Z4271

JC96-03349A ELA UNIT-FRAME_LOWER

JC61-01152A FRAME-M-BASE

JC97-02218A MEA UNIT-PLATE KNOCK_UP

JC61-01158A PLATE-M-KNOCK_UP

JC66-00720A SHAFT-P-CORE;ML-1750,SECC 1.6T,220,-,-,-

JC72-01004A PMO-IDLE KNOCK UP MP

JC74-00011A MPR-PAD KNOCK UP MP

JC61-01258A SPRING ETC-TORSION DEVE_L

1

1

1

1

1

2

1

1

SA

001N00466

SNA

SA

015N00560

SA

015N00561

SNA

SA

SNA

019N00835

SA

009N01516

SA

009N01517

SA

126N00246

SNA

Z4272 JC61-01259A SPRING ETC-TORSION DEVE_R

D4030 JC96-03518A ELA UNIT-RX DRIVE

B4025 JC61-01153A BRACKET-P-GEAR

M2048 JC61-01154A BRACKET-P-MOTOR

1

1

1

1

G0383 JC66-00804A GEAR-RDCN 139/83

P2119 JC31-00020D MOTOR BLOWER-STEP 7.5

K4023 JC72-00825A PMO-IMPELLER_DRV

B0101 JC97-02175A MEA UNIT-FRAME PAPER PATH

K2015 JC70-00500A ADJUST-M-CASSETTE_R

K2014 JC70-00499A ADJUST-M-CASSETTE_L

G0369 JG66-40003A GEAR-PINION;SF4000,POM,WHT,M1,Z1

F1011 JC61-00836A FOOT-FRONT;ML-1750,NBR,D7,-,12,-,-

1

1

1

1

1

1

1

2

SNA

SA

SA

SNA

127N07405

SA

SA

026N00764

SA

026N00765

SA

007N01178

SA

G0381

D4047

F4086

F6076

D4084

A0003

JC66-00805A GEAR-RDCN 113/83

JC66-00806A GEAR-OPC DR 76/38/29

JC66-00807A GEAR-FUSER DR 63/35

JC66-00808A GEAR-FEED DR 41

1

1

1

1

K3816 JC66-00822A LEVER-M-ACTUATOR_EMPTY 1 SA

120N00481

Z4274 JB61-00076A SPRING ETC-TORSION DOC (CC2-F);SCX-1110F

1 SA 009N01513

D4053 JC63-00622A GROUND-P-OPC

6107-001240 SPRING-CS

JC67-00110A CAP-M-MOTOR

1

2

1

SA

SA

007N01372

SA

007N01373

SA

007N01374

SA

115N00857

SNA

009N01518

SNA

B2030 JC61-00025A SPRING-CS-CHARGE APOLLO;SF-5100, 2 SNA

< 7 >




7.3-22

7.3-23

7.3-24

7.3-25

7.3-26

7.3-27

7.3-28

7.3-29

7.3-14

7.3-15

7.3-16

7.3-17

7.3-18

7.3-19

7.3-20

7.3-21

7.3-30

7.3-31

7.3-32

7.3-33

7.3-34

7.3-7

7.3-8

7.3-9

7.3-10

7.3-11

7.3-12

7.3-13

7.3-14

7.3-0

7.3-0

7.3-1

7.3-2

7.3-3

7.3-4

7.3-5

7.3-6

7.3 Fuser Unit



1

1

SA

SA

☞

☞

126N00245

F2122

Z2149

H4027

E4038

JC61-01162A FRAME-P-FUSER

JC63-00615A COVER-M_FUSER

JC61-01177A HOLDER-M-EXIT R

JC66-00810A GEAR-EXIT_DRV17

1

1

2

1

SNA

SNA

SA

019N00839

SNA

007N01377

SNA H4026 JC61-01172A HOLDER-M-EXIT F/DOWN 3

D4085

P6004

6107-001168 SPRING-CS

JC66-10901A BEARING-PRESSURE/R;ML-165,PPS,5,-,14.8

2

2

SNA

SA

013N13843

K3960

P6014

H2010

JC61-00595A GUIDE-M-INPUT;ML-1400,PET+GF30%,-,-,-,BL

JC66-00600A ROLLER-PRESSURE

JC66-00601A ROLLER-HEAT

1

1

1

F4094 JC66-00564A GEAR-FUSER, Z37;ML-1710,HTN51G35HSL,0.8, 1

K2297

K2297

4713-001202 LAMP-HALOGEN, 220V

4713-001203 LAMP-HALOGEN, 110V

1

1

SNA

SA

022N01611

SA

022N01610

SA

SA

SA

007N01205

K2879 JC61-00589A BUSH-M-HR L;ML-1400,PPS,-,-,-,-,V0 1 SNA

016N00282

K2880 JC61-00590A BUSH-M-HR R;ML-1400,PPS(RBA313N, CONDUC

1 SA 016N00262

☞

122N00245

☞

R1083 JC66-00824A ROLLER-M-EXIT MAIN

R1084 JC66-00830A ROLLER-M-EXIT FR

D4085 6107-001168 SPRING-CS

D4086 6107-001163 SPRING-CS;SUS304-WPB,-,PI0.4,D3.9,L13,-,

W3071 1404-001298 HERMISTOR-NTC;7KOHM,-,3370K,0.3MW/C,-,-

K4279 JC47-00005B THERMOSTAT-150

H1089 JC39-00404A CBF HARNESS-FUSER JOINT

H1085 JC39-00403A CBF HARNESS-FUSER(110V)

B2031

H4031

H4032

E4039

S2004

D4086

JC61-00064A SPRING-CLAW;ML-5200A,SUS 304 WPB

JC61-00584A HOLDER-M-PLATE CLAW;ML-1400,PET+GF30%,

JC61-00605A PLATE-P-CLAW;ML-1400,SUS304-CSP,0.1,-,-,

JC66-00801A GEAR-EXIT_DR38/25

6031-001051 WASHER-PLAIN;M4,ID4.1,OD7.0,T0.1

6107-001163 SPRING-CS;SUS304-WPB,-,PI0.4,D3.9,L13,-,

Z2194 JC63-00637A COVER-M-FUSER-DUMMY

L1014 JC63-00639A COVER-M-LAMP-L

L1015

D4088

E4159

H4087

JC63-00638A COVER-M-LAMP-R

6044-000001 RING-CS;ID3,OD3,T0.25,BLACK,SUS304

JC66-00826A ROLLER-EXIT F/DOWN

JC67-00085A CAP-M-THERMO

3

3

2

3

1

1

1

1

4

4

1

1

1

3

4

1

1

1

1

1

SNA

SNA

SNA

SA

009N01496

SA

130N01266

SA

130N01411

SA

152N11628

SA

152N11631

SNA

009N01380

SA

SNA

SNA

SNA

SA

SNA

SNA

SNA

SNA

SA

SNA

< 8 >




7.4-18

7.4-19

7.4-20

7.4-21

7.4-22

7.4-23

7.4-24

7.4-25

7.4-26

7.4-11-2

7.4-11-3

7.4-12

7.4-13

7.4-14

7.4-15

7.4-16

7.4-17

7.4-0

7.4-1

7.4-2

7.4-3

7.4-4

7.4-5

7.4-6

7.4-7

7.4-8

7.4-9

7.4-9-1

7.4-9-2

7.4-9-3

7.4-10

7.4-11

7.4-11-1

7.4 Paper Path Assembly

B0101

G2069

E7006

Z4209

K3377

W3076

W3077

W3078

JC97-02175A MEA UNIT-FRAME PAPER PATH

JC61-01161A GUIDE-M-PAPER PATH

JC66-00814A LEVER-ACTUATOR FEED SENSOR

JB61-00107A 0PRING ETC-LEVER SENSOR;SF-430,SUS304,0

JC70-10232A IPR-PLATE SAW

JC63-00625A GROUND-P-VARISTOR

JC63-00624A GROUND-P-ZENER

JC63-00623A GROUND-P-THV

1

1

1

1

1

1

1

1

SA

SA

038N00463

SA

130N01408

SA

009N01519

SA

015N00558

SNA

SNA

SNA

W3079

P0015

Z4137

R1049

H4029

R1120

P2093

P2056

JC63-00626A GROUND-P-SAW

JC97-02217A MEA UNIT-HOLDER_PAD

JC61-70911A SPRING ETC-EXIT ROLL FD;ML-165,SUS304 WP

JC69-00846A PAD-FRICTION

JC61-01169A HOLDER-M-PAD

JC66-00814A LEVER-M-KICKER P/U

JC97-02179A MEA UNIT-PICK UP GEAR

JC66-00803A GEAR-PICK_UP B

1

1

2

1

1

2

1

1

SNA

SA

019N00841

SA

SNA

019N00836

SA

SNA

SA

130N01419

SA

P2057 JC66-00802A GEAR-PICK_UP A

D4089

S8014

F6071

H4041

K3367

P2160

6107-001167 SPRING-CS

JC33-00015B SOLENOID-MP_R2;-,SCX-4720F,DC24V,-,-,-,-

JC66-00809A GEAR-FEED 35/19

JC61-00583A HOLDER-PTL;ML-1400,ABS,-,-,-,BLK,-

JC70-00307A IPR-P-EARTH TRANSFER;ML-1400,SECC,-,1.0T

JC66-00829A SHAFT-P-PICK_UP

1

1

1

1

1

1

SA

SA

121N01078

SA

007N01375

SA

016N00261

K2886 JC61-00588A BUSH-M-TR L;ML-1400,POM(M90-44),-,-,-,BL

K3856 JC72-00102A PMO-BUSHING_TR(L);SF-5100,POM ,B

Z4277 JC61-70940A SPRING ETC-TR(12)

1

1

2

SA

016N00254

SNA

009N01521

T3014 JC66-00725A ROLLER-TRANSFER;SCX-4100,NBR FOAM,¾å

1

5

A022N02126

SA

019N00818

SA

115N00854

SA

P2067

P2068 JC61-01173A HOUSING-M-PICK_UP B

P2148

P2042

G0448

-

JC61-01151A HOUSING-M-PICK_U

JC73-00211A RUBBER-PICK_UP

JC66-00811A CAM-M-PICK_UP

JC66-00813A GEAR-TRANSFER

JC61-01281A BRACKET-P-BAR_PICK-UP;

1

1

1

1

2

1

1

SA

SNA

SNA

SA

130N01409

SA

130N01410

SA

007N01376

SNA

< 9 >

x

8

8. Block Diagram

8.1 System Block Diagram

Block diagram


8-1

Block diagram

8.2 System Timing Chart

8-2


x

x

9

9. Connection Diagram

LSU

MAIN

MOTOR

1.OUT1A

2.OUT1B

3.OUT2A

4.OUT2B

CN11

MOTOR

1

PTL

FAN

1.L SU_CL K

2.nL READY

3.nPMOTOR

4.DGND

5.+24VS2

LD

CN12

LSU

1.nHSYNC

2.+5V

3.DGND

4.DAC_OUT

5.VDO

6.L SU_READ

LSU Motor

Exit SENSOR

MAIN B’d

1

1.Thermistor 1

2.Thermistor 2

CN8

THERM

USB 1.1

1

USB

SMPS

CN7

4

5

6

1

2

3

7

8

9

1

Not

Used

MAIN

CL UTCH

DCU

CN1

1

1.+ 5V

2.DCU_CUT

3.DCU_CLK

4.DGND

DCU

1

CN4

1.+ 3.3V

2.RXD

3.T XD

4.DGND

HVPS

Serial J4e debugging

CN5

1 1

CN10

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

De bugger

De bugger

1.T CLK

2.T DI

3.+ 1.8V

4.+ 3.3V

5.DGND

6.nT RST

7.PROGRAM

1.+ 24VS2

2.+ 24V

3.+ 24VS1

4.+ 24VS1

5.+ 5V

6.DGND

7.DGND

8.P_REGI

9.FU SER_ON

1.+ 24VS1

2.+ 24VS1

3.+ 24VS2

4.+ 24VS2

5.GND

6.DEV _KEY

7.+ 5V

8.P_EXIT

9.T HV_PWM

10.T HV_EN

11.MHV _PWM

12.T HV_READ

13.B IAS_PWM

14.FAN

15.KEY_IN

16.TO NER_SAVE

17.E RROR

18.READY

FUSER

110V for USA

240V for EU

1.HOT

2.Neutral

1

5

6

7

8

9

1

2

3

4

CON2

CON1

AC wire

1

SMPS

JAM COVER

MICRO SWITCH

AC I N-L ET

&

POWER

SWITCH

Regi SENSOR

Zener

F.G

COVER

MICRO SWITCH

HVPS

TACT

S/W

LED

EXI T SENSOR

CN1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

1

Connection Diagram


9-1

10-1


This Document can not be used without authorization.

x

Schematic Diagram

Main Board(2/4)

10-2



x


Main Board(3/4)

10-3



x


Main Board(4/4)

10-4



x


10-2 Connector Circuit Diagram

10-5

Schematic Diagram)

x

10-3 SMPS Circuit Diagram

10-6



x


10-4 HVPS Circuit Diagram(1/3)

10-7



x


HVPS Circuit Diagram(2/3)

10-8



x


10-4 HVPS Circuit Diagram(3/3)

10-9



x


x

1

1

of the tool list, the abbreviation table, the outline of model, and so on.

11.1 Troubleshooting Tool

The following tools are recommended safe and easy troubleshooting as described in this service manual.

Reference Information

•

DVM(Digital Volt Meter)

Standard : Indicates more than 3 digits.

• Cleaning Equipments

Standard : An IPA(Isopropyl Alcohol)dry wipe tissue or a gentle neutral detergent and lint-free cloth.

• Driver

Standard : "-" type, "+" type (M3 long, M3 short, M2 long, M2 short).

• Vacuum Cleaner

• Spring Hook

Standard : For general use

• Tweezers

Standard : For general home use, small type.

• Cotton Swab

Standard : For general home use, for medical service.

• Software (Driver) installation CD ROM


11-1


11.2 Acronyms and Abbreviations(1)

The table below explains the abbreviations and acronyms used in this service manual. Where abbreviations or acronyms are used in the text please refer to this table.

Abbreviations

HV

HVPS

I/F

I/O

IC

IDE

EPP

FPOT

F/W

GDI

GND

HBP

HDD

H/H

DPI

DRAM

DVM

ECP

EDC

EEPROM

EMI

EP

CN

CON

CPU dB dbA dBM

DC

DCU

AP

AC

APC

ASIC

ASSY

BIOS

BLDC

CMOS

Explanation

Access Point

Alternating Current

Auto Power Control

Application Specific Integrated Circuit assembly

Basic Input Output System

Brush-less Direct Current

Complementary Metal Oxide Semiconductor connector connector

Central Processing Unit decibel decibel A decibel milliwatt direct current

Diagnostic Control Unit

Dot Per Inch

Dynamic Random Access Memory

Digital Voltmeter

Enhanced Capability Port

Embedded Diagnostic control

Electronically Erasable Programmable Read Only Memory

Electro Magnetic Interference electrophotographic

Enhanced Parallel Port

First Printout Time firmware graphics device interface ground

Host Based Printing

Hard Disk Drive

High temperature and high marshy place high voltage

High Voltage Power Supply interface

Input and Output integrated circuit

Intelligent Drive electronics or Imbedded Drive Electronics

11-2


x


Acronyms and Abbreviations(2)

x

Abbreviations Explanation

PTL

PWM

Q-PID

Q ty

RAM

ROM

SCF

SMPS

OPC

OPE

PBA

PCL

PDL

PPM

PPS

PS

L/L

LSU

MB

MHz

MPF

NIC

N/N

NVRAM

IEEE

IPA

IPM

LAN lb

LBP

LCD

LED

Institute of Electrical and Electronics Engineers. Inc

Isopropy Alcohol

Images Per Minute local area network pound(s)

Laser Beam Printer

Liquid Crystal Display

Light Emitting Diode

Low temperature and low marshy place

Laser Scanning Unit megabyte megahertz

Multi Purpose Feeder

Network Interface Card

Normal temperature and normal marshy place nonvolatile random access memory

Organic Photo Conductor

Operate Panel Equipment

Printed Board Assembly

Printer Command Language , Printer Control Language

Page Discription Language

Page Per Minute

Pulse Per Second

Post Script

Pre-Transfer Lamp

Pulse Width Modulation

Quick Printer Initiating Device quantity

Random Access Memory

Read Only Memory

Second Cassette Feeder

Switching Mode Power Supply

SPGP Xerox Printer Graphic Processor

SPL Xerox Printer Language

Spool

SW

Simultaneous Peripheral Operation Online switch sync

USB

WECA synchronous or synchronization

Universal Serial Bus

Wireless Ethernet Compatibility Alliance


11-3


11.3 Selecting printer locations

• Leave enough room to open the printer trays, covers, and allow for proper ventilation. (see diagram below)

• Provide the proper environment :

- A firm, level surface

- Away from the direct airflow of air conditioners, heaters, or ventilators

- Free of extreme fluctuations of temperature, sunlight, or humidity

- Clean, dry, and free of dust

11-4


x


11.4 Sample Tests Patterns

The sample patterns shown below are the standard test patterns used in the factory.

The life of the toner cartridge, developer cartridge and printing speed are measured with the pattern shown below (5%). The A4 ISO 19752 standard pattern samples are reproduced reduced to 70% of the actual A4 size.

A4 ISO 19752 Standard Patterns

x


11-5

Circuit Description

12

The engine controller module consists of a motor controller, a PWM controller, a LSU I/F controller, and an ADC I/F controller.

12.1.1 Heater Control

ENGINE CONTROL PART

Vcc

FUSER

THERM

Rs

D2

914T1

Vcc Vcc

D1

914T1

R1

R5

5.6K

R3

3

IC1

LM393D

1

2

R4

R6

5.6K

D3

914T1

R7

1K

TR2 KSC

1008-Y

C

B

E

BD2

CN1

1

R2

C1

10nF

TR1

KSC

1008-Y

C

E

B

C2

1nF

BD1

2

THERMISTOR

+24Vs

R21

1.5K

2

1

PC1

AC CONTROL PART

CHOKE

R22 180

FUSIBLE

H

TRIAC

C21

104

R23

100

R24

120

C22

103

N

AC

VOLTAGE

HEAT

LAMP

The heat lamp radiates heat by using AC power. The AC power is a TRIAC (a semiconductor switch device) which controls a switch. The ‘ON/OFF’ control is completed by turning on/off a gate of the TRIAC through a photo TRIAC which is insulation part.

If explaining more detail about the AC control part, it consists of passive circuit ; therefore, it turns on/off the heater by receiving the signal from the engine control part. If the heater on signal is turned on at the engine, electricity flows in as the LED of the PC1 (Photo TRIAC) is connected. Then, it emits light.

By this light, the TRIAC unit, a light receiving unit, becomes on, and electricity is supplied to the gate of the TRIAC.

Then, the TRIAC is turned on. As a result, AC current flows in a heat lamp, and the heat lamp radiates heat.

On the other contrary, if the signal is turned off, the PC1 becomes off, and the TRIAC is turned off due to no electricity at the gate of the TRIAC. Consequently, the heat lamp is turned off.

Special Feature of TRIAC (THY 1): 16A, 600V SWITCHING

Phototriac Coupler (PC3)

Turn On If Current: 15mA~50mA (Design: 16mA)

High Repeive Peak Off State Voltage: Min 600V


12-1

x


12-2


x


Explanation about the condition of Normal Operation

If the fuser (P3.7) port becomes high, the Q6 is activated. A heat lamp starts operating by the activity.

As the temperature of the heat lamp is increased, the resistance value of the thermister is decreased.

Therefore, the electric potential of the circled A becomes low.

On/Off operation of the Q6 is only controlled by the fuser (P3.7) port because 5(+) of the

U11(Comparator) is always higher than 6 (-) within the normal control temperature rage.

Functions of the Malfunction Protection:

If the fuser port (P3.7) is turned on regardless of controlling due to system malfunction, the temperature of the heat roller goes abnormally high. At this time, the resistance value of the thermister becomes low.

When the resistance value of the thermister becomes low, the electric potential of the circled A gets low, and when the temperature goes over the certain temperature, the comparator (U11) gets a low output.

As a result, even though the fuser port is abnormally activated, it is disable to be over the regular temperature. For maintaining a regular temperature, a protect circuit consists in it (This protection is set up to start operating at the rage between 205°~210°)

12.1.2 PWM Controller

Function Description

PWM TIMER consists of each sub block which has various functions. The sub block is divided based on this block diagram. The entire diagram of the PWMTIMER is organized as below.

x

PWM TIMER OPERATION is figured out if calculating PHCLK by the value selected by the register setting and the divider. PHCLK is created by count block at the PWM TIMER


12-3


12.1.3 Motor Driver

A motor drive circuit is decided when selecting a driver IC. (Supplied by vendor) Phaser 3117 uses the motor driver IC of

AN44060. However, the sensing resistance Rs value and the Vreference resistance value are variable according to the motor drive current value.

12.1.4 LSU Controller

The laser scanning unit controller (LSUC) of Jupiter4E is a block for interface between PVC block and LSU.

LSUC sends the video data received from PVC and the laser diode turn On/Off signal created by inner 21 bit counter to the laser diode of LSU. LSU creates the horizontal sync signal (nHSYNC) by sensing the inputted diode turn on/off signal with the attached sensor. nHSYNC is inputted to PVC and LSUC as a signal that informs the beginning of one line. Also, LSU makes the activity of nLREADY signal (ready to print) low when the polygon motor becomes regularly rotating. LSU can recognize the regular rotation status of the polygon motor by reading nLREADYFlag bit in SFR.

Once the polygon motor regularly rotates, it sends the page sync signal (nPSync) to PVC by writing ‘1’ at LSUCON[5] in LSUC, and PVC starts operating for one page printing. After that, every time nHSYNC signal is created, PVC senses the signal and outputs the video data (PVC_VDO) to LSUC. At this time, LSUC creates the video window (Printing area) and masks it on the video data sent by PVC. LSUC sends the completed video data (LSU_VDO) to the laser diode in LSU.

Also, LSUC supplies LSU_CLK, created by counting the system clock with the operation clock source of LSU, for the use of substitution for oscillator. The SFR is set up in IsuSfr block by receiving the bus control signal from APB bus, and the settled register values are redelivered to IsuCon block. IsuCon block creates a signal for controlling the laser diode of LSU and outputs it to a pad. The digital filter module is a digital filter to provide against the noise loaded in nHSYNC and nLREADY signal which directly get into the chip. It is three layer filter, and the delay time is 3*System

Clock Time.

The interface between PVC and LSUC is shown in the picture.

nHSYNC

LSUC

LSU_VDO nHSYNC

PVC_VDO nPSync

0

1

LSU_VDO

PVC_TEST_EN

PVC nLSYNC nFSYNC

PVC_TEST_EN

1

0 nFSYNC

VDO

12-4


x


x

APB

BRIDGE

PWRITE

PSEL

PENABLE

PADDR[4:0]

PWDATA[31:0]

PRDATA[31:0]

PVC nPSync

LSUC

DigiFilter nLREADY_FO

DigiFilter nHSYNC_FO nLREADY nHSYNC ls uSfr nLREADYFlag flagClear lsuControl[8:0] windowOnTime[20:0] windowOffTime[20:0] ldOnTime[20:0] ldOffTime[20:0] patternDuty[9:0] lsuClkDuty[18:0]

SHOnTime[20:0]

SHOffTime[20:0] lsu Con

DAC

LSU_CLK

LSU_VDO

DAC_OUT

ENGIN E

APCCON[11:0] apcOnTime[20:0] apcOffTime[20:0]

Pmax[9:0]

Pmin[9:0]

Ka[14:0]

REF[24:0]

Kp[15:0]

Ki[4:0]

Ky

YMAXH[8:0]

YMAXL[31:0]

YMINH[8:0]

YMINL[31:0]

YINITH[8:0]

YINITL[31:0]

KU[5:0]

U_VALUE[25:0]

SEH[4:0]

SEL[4:0]

L_VAL UE[9:0]

HCLR[20:0]

PI

Control

Bl ock

PD

ADC

THER

THV

CKIN.

ADC_EN

SEL[1:0]

ADO_2[9:0] ap cOn

ADC

Cont roller


12-5


The main signals used in LSU Controller are shown in the table.

PVC-VDO nLREADY nHSYNC nPSync

LSU_VDO

I

I

I

0

0

The video data output from PVC.

Its activity becomes low as the polygon motor of LSU gets the regular speed.

It informs the beginning of one line. It is the same as nLSYNC of PVC.

It is inputted to nFSync of PVC.

The completed video data output by masking video window on PVC_VOD.

Laser Diode & Window On/Off Time

first field second field nHSYNC windowOn ldOn windowOnTime windowOffTime ldOnTime ldOffTime testPattern pattern start counter start

12.1.5 ADC Controller

Jupiter4E ADC Controller has 3 analog input channels.

It automatically converts the 3 channels in turns with 10 bit 500KSPS adc1275x_pc, and also it makes the conversion on the desired time by manually controlling STC of the register. After finishing the conversion, it makes the interruption to be pending. When AD conversion of 3 rd channel ends for the PI Control of LSU, it sends the 10bit digital data converted with the latch short pulse signal to LSUC.

12-6


x

Xerox Phaser 3117 Laser Printer Service Manual

Assistant Bot

LASER PRINTER

Phaser 3117

SERVICE Manual

The keynote of Product

- Speed : 17ppm (Ltr) / 16ppm(A4), 600dpi

- Paper Path : MPF Type Cassette

- Emulation : SPL

- Processor : 150MHz Jupiter4e CPU

- Memory : SDRAM, 8 MB,

- MP Cassette : 150 pages / Face Down

(50 pages)

- Fuser Design : Lamp Type

- I/O : USB1.1

- Machine Life : 50K(pages)

Contents

1. Precautions

3. System Overview

4. Alignment and Adjustments

Continued

5. Disassembly and Reassembly

6. Troubleshooting

7. Exploded Views & Parts List

9. Connection Diagram

10. Schematic Diagram

Continued

11. Reference Information

12. Circuit Description

1. Precautions

1.1 Safety Warning

1.2 Safety Caution

1.2.1 Noxious Material Precaution

1.2.2 Electric Shock or fire Precaution

1.2.3 Handling Precautions

1.2.4 Assembly/Disassembly precaution

1.3 ESD Precautions

2. Product Specifications

2.1 Product Overview

2.2 Specifications

2.2.1 General Specifications

2.2.2 Controller

2.2.3 Electrical Specification

2.2.4 Environmental Range

2.2.5 Toner Cartridge

2.2.6 Paper Handling Specifications

2.3 Model

Table

3. System Overview

3.1 System Outline

Paper Path Layout

Unit Layout

Panel

Main PBA

LSU

Motor

3.1.1 Feeding

3.1.2 Transfer Ass’y

3.1.3 Driver Ass’y

3.1.4 FUSER

3.1.5 LSU (Laser Scanner Unit)

OPC Drum

Photo Diode

Polygon Mirror

Polygon Motor

Motor Driver

LD Driver circit

Protector panel

LD(Laser Diode)

3.1.6 Toner Cartridge

3.2 H/W Structure and Descriptions

3.2.1 H/W Overview

3.2.2 Main Board

3.2.3 Asic(SPGPm) Specification

3.2.4 Sensor Controller

3.2.5 SMPS board (Switching Module Power Supply)

Pin Signal

3.2.6 HVPS board (High Voltage Power Supply)

Input

3.2.7 FUSER AC POWER CONTROL