Epson | C82357 | Specifications | Epson C82357 Specifications

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EPSON EPL-5700
®
4009173
NOTICE
„
„
„
„
All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic,
mechanical, photocopying, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.
The contents of this manual are subject to change without notice.
All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly
appreciate being informed of them.
The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences thereof.
EPSON is a registered trademark of SEIKO EPSON CORPORATION.
General Notice:
Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their respective
owners. EPSON disclaims any and all rights in those marks.
Copyright © 1996 SEIKO EPSON CORPORATION. Printed in Japan.
PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment.
DANGER
Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing
procedures preceded by DANGER Headings.
WARNING
Signals a precaution which, if ignored, could result in damage to equipment.
The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.
DANGER
1. ALWAYS DISCONNECT THE PRODUCT FROM THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR
REPAIR PROCEDURES.
2. NOWORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIER WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL
ELECTRONICS TECHNICIANS IN THEIR LINE OF WORK.
3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL
INSTRUCTED TO DO SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER
SUPPLY AND OTHER ELECTRONIC COMPONENTS.
WARNING
1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN.
2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF
THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER
SOURCE.
3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING
PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS.
4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC
WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS.
5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY THE MANUFACTURE; INTRODUCTION OF SECONDSOURCE ICs OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.
PREFACE
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of EPL-5700. The instructions and
procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page. The
chapters are organized as follows:
CHAPTER 1.
PRODUCT DESCRIPTIONS
Provides a general overview and specifications of the product.
CHAPTER 2.
OPERATING PRINCIPLES
Describes the theory of electrical and mechanical operations of the product.
CHAPTER 3.
TROUBLESHOOTING
Provides the step-by-step procedures for troubleshooting.
CHAPTER 4.
DISASSEMBLY AND ASSEMBLY
Describes the step-by-step procedures for disassembling and assembling the
product.
CHAPTER 5.
ADJUSTMENTS
Provides Epson-approved methods for adjustment.
CHAPTER 6.
MAINTENANCE
Provides preventive maintenance procedures and the lists of Epson-approved
lubricants and adhesives required for servicing the product.
APPENDIX
Provides the following additional information for reference:
• Connector pin assignments
• Electric circuit boards components layout
• Exploded diagram
• Electrical circuit boards schematics
REVISION STATUS
Rev.
A
Date
1998/05/06
Page(s)
All
Contents
First release
TABLE OF CONTENTS
PRODUCT DESCRIPTION
1.1 FEATURES.................................................................................................................................................................1-1
1.2 PAPER SPECIFICATION ...........................................................................................................................................1-6
1.3 PANEL OPERATION ..................................................................................................................................................1-8
1.3.1 Power Switch .................................................................................................................................................................................. 1-8
1.3.2 Control Panel .................................................................................................................................................................................. 1-8
1.3.2.1 Switches ................................................................................................................................................................................ 1-8
1.3.2.2 Lights..................................................................................................................................................................................... 1-8
1.3.3 List of Panel Setting ....................................................................................................................................................................... 1-9
1.3.4 Special(alternative) Operation ..................................................................................................................................................... 1-13
1.3.4.1 Operation at Power On........................................................................................................................................................ 1-13
1.3.4.2 Up-dating ROM Program..................................................................................................................................................... 1-14
1.4 OPTIONS AND CONSUMABLE ..................................................................................................... ..........................1-15
OPERATING PRINCIPLES
2.1 OPERATING PRINCIPLES OF MECHANISM............................................................................................................2-1
2.1.1 Overview.......................................................................................................................................................................................... 2-1
2.1.2 Paper Path ....................................................................................................................................................................................... 2-2
2.1.3 Paper Feed Mechanism.................................................................................................................................................................. 2-3
2.1.3.1 Paper Feed Operation........................................................................................................................................................... 2-3
2.1.3.2 Paper Empty Sensor ................................................................................................................................................................2-4
2.1.4 Second Paper Feed Unit(Option)......................................................................................................................................................2-4
2.1.4.1 Mechanism ...............................................................................................................................................................................2-4
2.1.4.2 Paper Empty Sensor ................................................................................................................................................................2-5
2.1.4.3 Cassette Type Sensor..............................................................................................................................................................2-5
2.1.5 Laser Exposure..................................................................................................................................................................................2-6
2.1.5.1 Sub Scanning Direction(Vertical scanning direction)................................................................................................................2-6
2.1.5.2 Main Scanning Direction(Horizontal scanning direction) ..........................................................................................................2-7
2.1.5.3 Printable Area ..........................................................................................................................................................................2-7
2.1.6 Charging Process ..............................................................................................................................................................................2-7
2.1.6.1 Overview (Refer to Figure2-9 on the next page) ......................................................................................................................2-7
2.1.6.2 Cleaning OPC drum .................................................................................................................................................................2-8
2.1.7 Developing .........................................................................................................................................................................................2-9
2.1.7.1 Overview ..................................................................................................................................................................................2-9
2.1.7.2 Function of each parts in the development part .......................................................................................................................2-9
2.1.8 Transfer Process .............................................................................................................................................................................2-10
2.1.8.1 Overview ................................................................................................................................................................................2-10
2.1.9 Fusing Process ................................................................................................................................................................................2-11
2.1.9.1 Overview ................................................................................................................................................................................2-11
2.1.9.2 Fusing Temperature Control Circuit .......................................................................................................................................2-11
2.1.9.3 Prevention of paper bent from the fusing ...............................................................................................................................2-12
2.1.10 Paper Eject .....................................................................................................................................................................................2-13
2.1.10.1 Face up/Face down disengage mechanism .........................................................................................................................2-13
2.2 ELECTRIC CIRCUIT........................................................................................................... ........................................2-14
2.3 CONTROLLER OPERATING PRINCIPLES ...............................................................................................................2-16
TROUBLESHOOTING
3.1 OVERVIEW...................................................................................................................................................................3-1
3.2 ELECTRIC CHECK POINT...........................................................................................................................................3-1
3.2.1 Rating of Power Fuse F1...................................................................................................................................................................3-1
3.2.2 Coil Resistance of Main Motor..........................................................................................................................................................3-1
3.2.3 Checking Sensors .............................................................................................................................................................................3-2
3.3 PRINTER CONDITION .......................................................................................................... .......................................3-3
3.3.1 Indication............................................................................................................................................................................................3-3
3.3.1.1 “Status” Conditions...................................................................................................................................................................3-3
3.3.1.2 “Error” Conditions .....................................................................................................................................................................3-4
3.3.1.3 “Warning” Conditions ...............................................................................................................................................................3-6
3.3.1.4 Service Req. Error....................................................................................................................................................................3-7
3.3.2 Paper Jam Sensor .............................................................................................................................................................................3-9
3.3.2.1 Overview ..................................................................................................................................................................................3-9
3.3.2.2 Paper Jam Sensor Conditions..................................................................................................................................................3-9
3.3.2.3 Resetting the Paper Jam..........................................................................................................................................................3-9
3.4 TROUBLESHOOTING................................................................................................................................................3-10
3.4.1 Handling Paper Jam ........................................................................................................................................................................3-10
3.4.1.1 Paper Jam at power on ..........................................................................................................................................................3-10
3.4.1.2 Paper Jam at Paper Feed and Transporting ..........................................................................................................................3-10
3.4.2 Troubleshooting for Abnormal Operations ...................................................................................................................................3-11
3.4.2.1 Abnormal Laser ......................................................................................................................................................................3-11
3.4.2.2 Abnormal Polygon Motor........................................................................................................................................................3-11
3.4.2.3 Abnormal Fusing ....................................................................................................................................................................3-11
3.4.2.4 Power can not be turned on ...................................................................................................................................................3-11
3.4.3 Troubleshooting Print Quality Problems .......................................................................................................................................3-12
3.4.4 Horizontal Lines...............................................................................................................................................................................3-14
DISASSEMBLY AND ASSEMBLY
4.1 OVERVIEW...................................................................................................................................................................4-1
4.1.1 Precaution for Disassembly and Assembly.....................................................................................................................................4-1
4.1.2 Recommended Tools ........................................................................................................................................................................4-2
4.1.3 Specification for Screws ...................................................................................................................................................................4-2
4.1.4 Work Completion Check ...................................................................................................................................................................4-2
4.2 DISASSEMBLY PROCEDURE...................................................................................................... ...............................4-3
4.2.1 Preparation Before Disassembly......................................................................................................................................................4-4
4.2.2 Right Cover Removal.........................................................................................................................................................................4-5
4.2.3 Paper Feed Roller Removal ..............................................................................................................................................................4-6
4.2.4 Paper Empty Sensor Removal(PE1).................................................................................................................................................4-6
4.2.5 ROM(C215PROG-B) Exchange .........................................................................................................................................................4-7
4.2.6 Control Panel Removal......................................................................................................................................................................4-8
4.2.7 Front Cover Removal.........................................................................................................................................................................4-9
4.2.8 Interlock Switch Removal ...............................................................................................................................................................4-10
4.2.9 Main Control Board Removal..........................................................................................................................................................4-11
4.2.10 Left Cover Removal .......................................................................................................................................................................4-12
4.2.11 Print Head Unit Removal ...............................................................................................................................................................4-13
4.2.12 Paper Feed Roller Unit Removal ..................................................................................................................................................4-14
4.2.13 Paper Feed Solenoid Removal .....................................................................................................................................................4-15
4.2.14 Top Cover Removal .......................................................................................................................................................................4-16
4.2.15 Rear Cover Removal......................................................................................................................................................................4-17
4.2.16 Fusing Unit Removal .....................................................................................................................................................................4-18
4.2.17 Disassembling the Fusing Unit ....................................................................................................................................................4-19
4.2.17.1 Heater Lamp Removal .........................................................................................................................................................4-19
4.2.17.2 Thermister, Thermostat Removal.........................................................................................................................................4-21
4.2.17.3 Paper Eject Sensor(PS3) .....................................................................................................................................................4-22
4.2.18 Transfer Roller Exchange .............................................................................................................................................................4-23
4.2.19 Power Board Removal...................................................................................................................................................................4-24
4.2.20 High Voltage Board Removal........................................................................................................................................................4-26
4.2.21 Paper Sensor(PS1) Removal.........................................................................................................................................................4-27
4.2.22 Main Motor Removal......................................................................................................................................................................4-27
4.2.23 Driving Unit Removal.....................................................................................................................................................................4-28
4.3 DISASSEMBLY AND ASSEMBLY FOR OPTIONAL SECOND PAPER FEED UNIT.................................................4-29
4.3.1 Second Paper Feed Roller Exchange ............................................................................................................................................4-29
ADJUSTMENT
5.1 ADJUSTMENT..............................................................................................................................................................5-1
5.1.1 Interlock Switch Position Adjustment..............................................................................................................................................5-1
MAINTENANCE
6.1 MINTENANCE ..............................................................................................................................................................6-1
6.1.1 User Maintenance ..............................................................................................................................................................................6-1
6.1.2 Service Maintenance .........................................................................................................................................................................6-1
APPENDIX
7.1 CONECTOR PIN ASSIGMENTS ..................................................................................................................................7-1
7.2 CIRCUIT BOARD COMPONENT LAYOUT ..................................................................................................................7-6
7.3 EXPLODED DIAGRAM.................................................................................................................................................7-7
7.4 CIRCUIT DIAGRAM....................................................................................................................................................7-17
&+$37(5
PRODUCT DESCRIPTION
EPL-5700
Chapter1 Product Description
1.1 FEATURES
EPL-5700 is a small and compact A4 size page printer that semiconductor
laser beam scanning is applied for. Following shows features.
‰
First print:
‰
Warm-up time:
*2:Regarding printing with custom size(non-standard
size)paper, the printing speed will become faster
because cleaning takes place automatically.
19 seconds(A4/LTR), 18.2 seconds(B5)
17.3 seconds(A5), 20.2 seconds(legal)
20 seconds or less (at 23 degree Celsius, standard
voltage)
PRINTABLE AREA
‰
Print area
Area within margins of 4mm from each side.
(Refer to Figure 1-2)
Note) The printable area may change depending on
the print mode.
4mm
4mm
PROCESS SPECIFICATION
Method:
Dry mono-component xerographic method
Light source:
Semiconductor laser
Photoelectric unit: OPC drum(organic photoconductor)
Charge:
Rotating brush charging type
Developer:
Exposed section developer system
Toner:
Mono-component nonmagnetic toner
Transfer method: Roller transfer
Fixing:
Heat roller system
Density regulator: Developer bias variation system(user can regulate)
PRINT SPEED
‰
‰
Resolution:
Print Speed:
Rev. A
Printable Area
4mm
‰
‰
‰
‰
‰
‰
‰
‰
‰
4mm
Figure 1-1. Exterior View
600 dpi
8ppm(A4/LTR/B5/A5),
6.9ppm(legal)
*1:Same with optional cassette
Figure 1-2. Printable Area
1-1
EPL-5700
Chapter1 Product Description
Table 1-2. Paper Handling (Cont.)
PAPER HANDLING
Table 1-1. Paper Handling
Paper supply
method
Multipurpose tray
Capacity
Supplied paper size
150
sheets*1
Standard paper types
are those that fall
within the range of
those usable sizes
given below.
76.2 x 127∼ 215.9
x355.6 mm
(A4, JIS-B5,A5,
Letter, Government
letter, Executive,
Legal, Government
Legal, F4, Half
Letter) or Custom
size (optional size
that falls within the
range of standard
paper sizes)
Japanese official
post card*2
Japanese official
post card*2
(when printing on
back)
Envelopes
Monarch, C10, DL,
C5,C6
International-B5
Labels/OHP/thick
pages
50sheets
20sheets
10
sheets
Permissible
paper thickness
Normal paper 60
2
to 90g/m (16 to
24lb)
Paper supply
method
Manual Feed slot*4
Capacity
1 sheet
Lower cassette
*1,*5
500
sheets*1
Supplied paper
size
Standard or
Custom paper
sizes that fall
within the range of
usable sizes given
below.
100x148∼215.9x
355.6 mm
A4, LG, LT
Permissible
paper thickness
Normal paper 60 to
2
90g/m (16 to 24lb)
Thick paper 90 to
2
157g/m
Special paper
(labels, OHP)
Normal paper
2
60 to 90g/m
(16 to 24lb)
Note) *1: For 20lb(75g/m2) paper.
*4: Manually fed papers are inserted one page at a time above the
cover of the paper tray.
*5: Cassette trays can be used for each of the standard paper sizes.
The maximum size of the paper supply including the paper tray is
650 sheets.
CONSUMABLES
Special paper
2
190g/m
Normal paper 60
2
to 90g/m (16 to
24lb)
Thick paper 90 to
2
157 g/m
Special paper
(labels, OHP)
‰
Name:
Developer and Toner cartridge
Organic Photoconductor Unit
‰ Life1*
Developer equipment
(Black colored mono component nonmagnetic toner:
Average 6000 sheets.)
OPC drum(organic photo conductor unit):20000
sheets.
Note 1*) These number represent the number of printed pages that can be
printed assuming continuous printing on an A4 page with print duty of 5%.
The life will change based on the print duty and method of printing
(continuous printing, intermittent printing, printing density, toner
economizing)
Note) *1 For 20lb(75g/m2) paper.
*2 When printing on the back file of the paper using manual printing,
since the paper may curl, a maximum of 20 pages can be set.
Rev. A
1-2
EPL-5700
Chapter1 Product Description
CONTROLLER SPECIFICATION
ENVIRONMENTAL CONDITION
‰
‰
[Usage conditions including expendable parts]
CPU
RAM
‰
ROM
‰
Host interface
RISC VR4300 100MHz
Standard 4MB(EDO type)
SIMM option: 1
32MB, 16MB, 8MB, 4MB (EDO type, 1 slot)
Maximum 36MB(4MB(standard) + 32MB(expansion
SIMM slot)
Font: 2Mbytes(mounted on main board)
Program: 4Mbytes (mounted on ROM DIMM board)
Standard, Centronics, Bi-direnctional parallel
IEEE-1284 nibble
ECP
RS232C
Serial
Type-B I/F:
1 slot
SOFT SPECIFICATION
‰
‰
Control Code
Emulation
Rev. A
Bi-direction EJL
ESC/Page mode
PCL5E mode
GL/2 mode
FX mode
ESC/P2 mode
I239x
Post Script level 2(Option)
‰
‰
‰
‰
Temperature:
Humidity:
Air pressure(altitude):
Surface angle:
‰
Luminosity:
10 to 35 °C
15% to 85% without condensation
760hPa or more(2500 meters or less)
1 degree incline or less (for both front
to rear and side to side)
3000 lux or less(not exposed to direct
sunlight)
[Environmental conditions for storage and transportation]
Temperature
Humidity
Normal
Extremes
(1/3 of total
holding period)
Normal
Extremes
(1/3 of total
holding period)
Holding Period
‰
‰
Shipping Air Pressure:
Resistance to shock:
High
Low
High
Low
0 to 35 °C
35 to 40 °C
-20 to 0 °C
30 to 85%
85 to 95%
10 to 30%
18 months after
manufacture
460 to 760 hPa
For JIS Z0200 1987 Level 1 with no
abnormalities.
Dropping direction: 1 corner, 6 sides, 3 edges
1-3
EPL-5700
Chapter1 Product Description
ELECTRICAL SPECIFICATION
DIMENSIONS
‰
‰
‰
‰
1)
2)
3)
4)
5)
6)
7)
Power supply:
120 model
120V +/- 10%, 50-60Hz +/-3Hz
„ 200V model
220 to 240V +/- 10%, 50-60Hz +/- 3Hz
Electrical characteristic
AC line noise:
Pulse width: 50 to 1000 ns
Pulse polarity:
±
Repeat:
non-simultaneous
Modes:
common/normal
Voltage:
1kv
However, the parts can withstand up to 2kv without damage.
Instant cutoff:
DIP 100%(for standard voltage-10%) for one
cycle with normal print quality.
Electrostatic durability:
up to ± 10kv: no hardware errors
no unrecoverable software errors for the operator
up to ± 15kv: without damage to components
Rush current:
1/2 cycle, 50A or less
Insulation resistance:
10 M Ω or less
Dielectric strength:
Assuming the following voltages are input for
one minute with no breakdowns.
120V model: AC 1000V(duration of one
surge)
200V model: AC1500V(duration of one
surge)
Leakage current:
3.5mA or less (120V model)
3.5mA or less (200V model)
„
Rev. A
Dimensions:
Weight:
Main unit 397(W)mm x 463(L)mm x251(H) mm
Approximately 7.5Kg(not including expendable or
optional parts)
RELIABILITY AND DURABILITY
‰
‰
‰
‰
Product life
Approximately 180000 printed pages or five years,
whichever comes first.
MPBF:
25000 sheets or more
Note) This is the average number of sheets before a breakdown will
occur that either requires the change of parts or for which the user is
unable to resolve.
MTBF:
3000 hrs(10 months) or more
Paper Feed Reliability(for recommended paper or normal paper)
„ Jam rate:
1/2000 or less(not including multiple pages)
„ Misfeed:
1/2000 or less
„ Multiple page feed rate: 1/500 or less
„ Paper wrinkling:
1/1000 or less
„ Paper leading edge folds: 1C or more, 1/1000 or less
Instances of only 1C excluded*1
Note)*1: 1C signifies a corner folded
1mm.
1-4
EPL-5700
Chapter1 Product Description
APPLICABLE CERTIFICATION STANDARDS AND REGULATIONS
[EMC]
Table 1-5. EMC
The specification of this engine meet the certification standards and
regulations below. There are cases in which the standards and regulations
that apply differently to products, including the controller, depending on their
destination.
Model Name
100V model
[Safety Standards]
200V model
Table 1-3. Safety Standards
Model Name
120V model
200V model
Applicable certification
UL 1950
CSA 22.2 No.950
TÜV-GS(EN60950)
NEMKO(EN60950)
[Safety Regulations]
Table 1-4. Safety Regulations
Model Name
120V model
200V model
Rev. A
‰
‰
Applicable certification
FDA(NCDRH) Class 1
TÜV-GS(EN60825)
NEMKO(EN60825)
Power consumption:
Others:
Toner:
„
„
OPC:
„
„
Ozone emissions:
Materials:
‰
‰
Ozone:
Potential toxicity:
‰
Noise:
Applicable certification
CNS 13438
CISPR22(Taiwan)
FCC Part15 Subpart B Class B/CSA
C108.8 Class B
EC EMC Directive 89/336/PEC
EN55022 Class B
EN61000-3-2
EN61000-3-3
EN50082-1
AS 3548(Australia)
In compliance with international Energy
Star standards.
Do not effect on human body(in
accordance with OSHA, TSCA,
EINECS and CSCL)
Does not effect human body(in
accordance with OSHA)
Conforms to UL 478, 5th version.
Conforms to Swiss environmental
protection laws(does not include CdS)
0.02 ppm or less.
OPC, toner, and plastic parts are
nontoxic.
Stand-by 30 dB(A) or less.
In operation, 47.0 dB(A) or less.
1-5
EPL-5700
Chapter1 Product Description
POWER CONSUMPTION
‰
1.2 PAPER SPECIFICATION
Power consumption
Useable paper types are mentioned below.
Standard Maximum current
Power
Maximum(during
consumption
warming up)
Average during continuous printing
Standby mode
(average)
heater on
heater off*1
120V model
5.3A
580W
220-240V model
3.0A
580W
Less than
200W
Less than
40W
Less than
15W
Less than
210W
Less than
40W
Less than
15W
Note)*1 Energy star compliment.
‰
‰
Resistance to vibration:
Output paper:
Vibration frequency, 5 to 100Hz, 100 to 5 Hz.
Acceleration:1G
Cleaning time:10 minutes(one way)
Added vibration direction: 3 directions
Added vibration time: 60 minutes in each
direction X,Y, and Z, for 180 minutes total.
Face-down-maximum 100 sheets (for 20lb. (75g/
2
m )paper)
2
Face up-maximum 20 sheets(for 20lb. (75g/m ) paper,
when using the optional face up tray)
Use the lever on the right side of the printer to switch
the front and rear sides of the paper when changing
the face up orientation.
PAPER TYPES
‰
2
Normal Paper
CAUTION
„ The paper type listed below can not be used with
•
•
•
•
•
•
•
•
•
•
•
Rev. A
2
60g/m to 90g/ m (16 lbs. to 24 lbs.)
Copy, bond, and recycled paper in general use.
‰ Special Paper Labels, Japanese official post cards,
OHP film, Color
2
paper, thick paper(90 to 157 g/ m ), special DTP
paper, letterhead.
Note) Ibs:ream weight= ib./500 pages/17x22 g/m2:1g/m2=0.2659763 lbs.
this printer. They will result in bad printouts,
paper jams, and can damage the printer.
Carbon paper, non-carbon paper, thermal
transfer paper, impact paper, acidic paper.
Paper that has gone through a thermal transfer
or ink-jet printer.
Paper that is too thick or too thin.
Wet(damp) paper.
Paper to which a special coating has been
applied, or colored paper that has gone through
surface process.
Paper that has been lubricated(too smooth or
slippery), too rough, or whose texture is
different on the front and back.
Paper with holes for binders or perforations.
Folder, curled, or damaged paper.
Paper of irregular shape or not cut with right
angles.
Paper with labels that come off and stick easily.
Paper with glue, staples, or paper clips attached.
1-6
EPL-5700
Chapter1 Product Description
CAUTION • Special ink-jet paper(surface fine paper, glossy
PAPER SIZE
paper, glossy film, etc).
Table 1-7.Paper Size and Paper Feeding
PAPER CLASSIFICATIONS
Paper
Type
Table 1-6.Paper Classification
Paper
supply
Paper
Tray
Lower
Cassette**
Standard
paper
Normal
Paper
(60 to 90
g/m2)
Special Paper
O
♦
1*
♠
O
♦
X
2*
♠
3*
♠
4*
♠
5*
♠
X
X
X
X
Note) 1* OHP
2* Government postcards.
3* Labels.
4*Thick paper(90 to 157g/m2)
5* Envelopes(MON, C10, DL, C5, C6, International-B5)
O: Can guarantee paper feed reliability and image quality.
♦: Can guarantee paper feed reliability and image quality. However,
this is limited to those paper types used generally.
♠: Can print characters. However, this is limited to those paper types
used generally.
X: Can not feed.
**:Option.
Rev. A
Normal
Paper
Paper
Size
Paper
Tray
A4
A5
JIS-B5
Letter
Half Letter
Legal
EXE
Government
Legal
Government
Legal
F4
3x5”
210x297
148x210
182x257
(8.5)x(11)
(5.5)x(8.5)
(8.5)x(14)
(7.25)x(10.5)
(8.5)x(13)
O
O
O
O
O
O
O
O
Manual
Feed
Slot
O
O
O
O
O
O
O
O
(8)x(10.5)
O
O
210x330
3x5”
(76.2x127)
O
O
O
Optional
Lower
Cassette
O*
O*
O*
Note) O: O.K
*: Depends on destinations.
Table 1-8. Paper Size and Paper Feeding(Cont.)
Paper
Type
Special
Paper
Paper
Post Card
Monarch(MO)
C10
DL
C5
C6
InternationalB5
16MO
Paper Size
(mm/inch)
100x148
98.43x190.5
104.78x241.3
110x220
162x229
114x162
176x250
Paper Tray
O
O
O
O
O
O
O
Manual Feed
Slot
O
O
O
O
O
O
O
198x275
O
O
1-7
EPL-5700
Chapter1 Product Description
1.3 PANEL OPERATION
1.3.2.1 Switches
‰
‰
1.3.1 Power Switch
Power switch is located left rear side of the printer. It controls power On/Off.
‰
1.3.2 Control Panel
The control panel of EPL-5700 is located right edge of the front printer.
There are six LED lights and four non lock type switches.
‰
Paper
Toner
Memory
Alt Continue Form Feed On Line
‰
‰
‰
‰
‰
Rev. A
Switches the printer between on line and off line
status.
Form feed switch: When the printer is off line and data remains in the
printer’s memory, prints out the data and clears the
buffer. If used in combination with the Alt button, a
status sheet is printed.
Continuous switch:Enables the printer to resume printing after certain
maintenance-required conditions or errors have been
cleared. If used in combination with the Alt button, the
printer is reset.
Alternate switch: Use this button in combination with the Continue
button in order to stop printing and reset (Warm boot).
In the reset condition, if both Alt switch and Continue
switch are pressed more than 5 seconds, the printer
goes to “Reset All” condition.
1.3.2.2 Lights
Reset
Status Sheet
Figure 1-3. Control Panel
On line switch:
On Line LED(green):
Displays a non-flashing light when the printer
is on line, indicating the printer can receive
print data. When the printer is off line, this light
is off. The light flashes as the system switches
between on-line and off-line status.
Form Feed LED(yellow): Comes on when data is received and stored in
the printer’s buffer prior to printing. Flashing
indicates the printer is processing data. When
no data remains in the printer buffer(the
section of memory reserved for receiving
data), this light is off.
Continue LED(red):
Flashes when an error is detected or a
maintenance procedure must be performed.
Paper LED(yellow):
Displays a non-flashing light when a general
paper error, or “Printer Open” error has
occurred.
Toner LED(yellow):
Displays a non-flashing light when it is time to
change the developer cartridge (toner).
Flashes to indicate the toner is low.
1-8
EPL-5700
‰
Chapter1 Product Description
Memory LED(yellow):
Displays a non-flashing light when either a
Print Overrun or Mem Overflow error has
occurred. Flashes when the resolution is
reduced from 600 to 300 dpi, because of lack
of memory size.
Refer to Chapter 3 for error conditions.
CAUTION This printer has EEPROM to maintain the function
setting. Data-writing to EEPROM can not be
guaranteed, if the power is turned off during
writing. Therefore, sometimes service error call
occurs or the panel setting returns to the initial
setting by all reset or at the next power on. In
order to prevent this, do not turn off the printer at
the following conditions, since data-writing to
EEPROM is performed.
• From the power is turned on until the On Line
light stays on.
•When On-line light is flashing.
1.3.3 List of Panel Setting
This printer has no LCD display in the control panel, so it is not possible to
make function settings from the control panel, excluding toner left quantity
reset and OPC drum life reset by the special operation and status sheet.
Function settings can be performed using “RCP”(remote control panel).
In the Table below, note that the bold and italic value in the “Value” column
indicates the factory default setting.
Table 1-9. Function Setting for Control Panel
Menu
Test Menu
•
•
•
•
•
•
Wide A4
Orientation
Copies
Manual Feed
Resolution
Skip Blank Page
•
•
•
•
•
•
Emulation
Menu
Printing
Menu
Rev. A
•
•
•
•
•
•
•
•
Item
Status sheet
ESC/Page Font
Sample.
LJ4 Font Sample.
ESCP2 Font
Sample.
FX Front Sample
1239X Front
Sample.
*1
PS Status Sheet
*1
PS Font Sample
*1
PS Fact Sheet
Parallel
Serial
*2
AUX
Paper Source
Page Size
Value
*1
LJ4, ESCP2, I239X, PS , GL2,
AUTO
• Auto, MP, LC1 .
• A4*10, A5, B5, LT*17, HLT,
LGL, GLT, GLG, EXE, F4,
MON, C10, DL, C5, C6, IB5,
CTM.
• Off, ON
• Port, Land
• 1-999
• Off, On
• 600, 300
*14
• Off, On
*3
1-9
EPL-5700
Chapter1 Product Description
Table 1-10. Function Setting for the Control Panel(Cont.)
Menu
Tray Size
Menu
Config Menu
Setup Menu
Item
• MP Tray Size
•
•
•
•
•
LC1 Size
RITech
Toner Save
Density
Top Offset, Left Offset
•
•
•
•
•
Size Ignore
Auto Cont
Page Protect
Image Optimum
*5
Paper Type
*3
• Interface
• Time Out
• Standby
• Language
Parallel Menu
•
•
•
•
•
•
Toner
Page Count
SelecType Init
Speed
Bi-D
Buffer Size
Value
• A4*16, A5, B5, LT*17,
HLT, LGL, GLT, GLG,
EXE, F4, MON, C10,
DL, C5, C6, IB5.
• A4, LT, LGL.
• On, Off.
• Off, On.
• 3, 4, 5, 1, 2
• -9.0, -0.0, -99.0 mm step
0.5mm.
• Off, On
• Off, On
• Auto, On
• Auto, Off, On
*5
• Normal, Thin , Thick,
Transprnc.
• Auto, Parallel, Serial,
*2
AUX .
• 0, 5-60-300
• Enable, Disable
• English, Francais,
Deutsch, ITALIANO,
ESPANOL, SVENSKA,
Dansk, Dederl., SUOMI,
Portugues.
• 0∼100
• 0∼999999999
Table 1-11. Function Setting for the Control Panel(Cont.)
Menu
Serial Menu
*2
AUX Menu
ESC/Page
*4
Menu
LJ4 Menu
Item
• Word Length
• Baud Rate
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Parity
Stop Bit
DTR
Xon/Xoff
Buffer Size
Buffer Size
Auto CR
Auto FF
CR Function
LF Function
FF Function
Error Code
Avoid Error
Font Source
Font Number
*15
Pitch
Height
*15
• SymSet
*7
• Fast, Normal
• Nibble, ECP, Off
• Normal, Maximum,
Minimum.
• Form
*7
• Source SymSet
Rev. A
Value
• 8, 7
• 9600, 19200, 38400, 57600, 300,
600, 1200, 2400, 4800
• None, Even, odd
• 1, 2
• On, Off
• On, Off, Robust
• Normal, Maximum, Minimum.
Normal, Maximum, Minimum.
• On, Off
• On, Off
• CR, CR+LF
• LF+CR, LF
• FF+CR, FF
• Ignore, Space
• Off, On
• Resident, DIMM, Download.
• 0 ∼ available(Max 65535)
• 0.44∼10.00∼99.99 cpi step 0.01
cpi
• 4.00∼12.00∼999.75pt step 0.25 pt
• IBM-US, Roman-8, ECM94-1,
8859-2 ISO, 8859-9 ISO, IBM-DN,
PcMuktiling, PcE. Europe,
PcTk437, WiAnsi, WiE.Europe,
WiTurkish, DeskTop, PsText,
VeInternati, VeUS, MsPublishin,
Math-8, PsMath, PiFont, Legal,
UK, ANSI ASCII, Swedis2,
Intalian, Spanish,
German,Norweg1, Fench2,
Windows.
*17
*16
• 5∼60 ∼64 ∼128 Lines.
• 0∼277∼3199
1-10
EPL-5700
Chapter1 Product Description
Table 1-12. Function Setting for the Control Panel(Cont.)
Menu
LJ4 Menu
GL2 Menu
Item
Dest Symset
• GL-Mode
• Scale
• Origin
• Pen
• End
• Join
• Pen0
• Pen1
• Pen2
*6
• Pen3
*6
• Pen4
*6
• Pen5
*6
• Pen6
*6
PS Menu
• Error Sheet
• Protect Level
• MicroGray
Value
0∼277∼3199
• GLlike, LJ4GL2
• Off, A0, A1, A2, A3
• Corner, Center
*6
*6
• Pen0, Pen1, Pen2 , Pen3 ,
*6
*6
*6
Pen4 , Pen5 , Pen6
• Butt, Square, Triangular,
Round.
• Mitered, Miteredbeveled.
Triangular, Round, Beveled,
None.
• 0.05∼0.35∼5.00mm step
0.05mm.
• 0.05∼0.35∼5.00mm step
0.05mm.
• 0.05∼0.35∼5.00mm step
0.05mm.
• 0.05∼0.35∼5.00mm step
0.05mm.
• 0.05∼0.35∼5.00mm step
0.05mm.
• 0.05∼0.35∼5.00mm step
0.05mm.
• 0.05∼0.35∼5.00mm step
0.05mm.
• Off, On
• 1∼5
• On, Off
Table 1-13. Function Setting for the Control Panel(Cont.)
Menu
ESCP2 Menu
Item
• Font
•
•
•
•
Pitch
Condensed
T. Margin
Text
• CGTable
*7
• Country
FX Menu
•
•
•
•
•
Auto CR
Auto LF
Bit Image
ZeroChar
Font
•
•
•
•
•
Pitch
Condensed
T.Margin
Text
CGTable
• Country
Rev. A
Value
• Courier, Prestige, Roman, Sans,
serif, Roman T, Orator S, Sans H,
Script, OCR A, OCR B.
• 10cpi, 12cpi, 15cpi, Prop.
• Off, On
• 0.40∼0.50∼1.50 inch step 0.05 inch
*17
*16
• 1∼62 66 ∼available (Max 81) Lines
• PcUSA, Italic, PcMultiln, PcPortugue,
PcCanFrenc, PcNordic, PcTurkish2,
PcE. Europe, BpBRASCII,
BpAbicomp
• USA, France, Germany, UK,
Denmark, Sweden, Italy, Spain1,
Japan, Norway, Denmark2, Spain2,
LatinAmeric, Korea, Legal.
• On, Off
• Off, On
• Dark, Light, BarCode
• 0, φ
• Courier, Prestige, Roman, Sans serif,
Script, Orator S, OCR A, OCR B
• 10cpi, 12cpi, 15cpi, Prop.
• Off, On
• 0.40∼0.50∼1.50 inch step 0.05 inch
*17
*16
• 1∼62 66 ∼available (Max 81) Lines
• PcUSA, Italic, PcMultiln, PcPortugue,
PcCanFrenc, PcNordic, PcTurkish2,
PcE. Europe, BpBRASCII,
BpAbicomp
• USA, France, Germany, UK,
Denmark, Sweden, Italy, Spain1,
Japan, Norway, Denmark2, Spain2,
LatinAmeric
1-11
EPL-5700
Chapter1 Product Description
Table 1-14. Function Setting for the Control Panel(Cont.)
Menu
FX Menu
1239X Menu
•
•
•
•
•
Item
Auto CR
Auto LF
Bit Image
ZeroChar
Font
•
•
•
•
•
• Pitch
•
• Code Page
•
•
• Text
•
•
•
•
•
•
•
•
•
•
•
•
•
Auto CR
Auto LF
Alt.Graphic
Bit Image
ZeroChar
CharacterSet
Value
On, Off
Off, On
Dark, Light, BarCode
0, φ
Courier, Prestige,
Roman, Sans serif,
Script, Orator S, OCR A,
OCR B
10cpi, 12cpi, 15cpi,
17cpi, 20cpi, 24cpi,Prop.
437, 850, 860, 863, 865
0.30∼0.40∼1.50 inch
step 0.05 inch
*17
*16
1∼63 ∼67 ∼available
(Max111)Lines
Off, On
Off, On
Off, On
Dark, Light, BarCode
0, φ
1, 2
Note)
*1:
*2:
*3:
*4:
*5:
*6
*7
*8
*9
Rev. A
Can only be selected when Parrot-V option.
Can only be selected when Type-BI/F option is installed.
Can only be selected when optional lower cassette is installed.
These item will not be displayed on the panel and can not select or
change from the RCP etc. And these items will not be printed on
status sheet. Also these items will be hidden to the users.
Normal
Select when using normal paper.
Thin
Invalid for EPL-5700. This setting is only possible to
change by EJL command, but if printer receive this
command, internal setting will force to set to Normal
setting.
Thick
Select when using narrow media such as envelopes,
postcards, etc.
Can only be selected in GLlike mode.
When the NLSP font DIMM is added, the selectable SymSet and
CGTable for RCP for DOS are added. Following symbol set will be
added.
For LJ4 mode:
8
8
8 9
8
Pclcelandic* , PCLt774* , PcTurk1* * , PcPortugues* ,
8
8 9
8
8
PcEt850* , PcTurk2* * , PcCanFrench* , PcSI437* ,
8
8
8
8
PcNordic* , 8859-3ISO* , 8859-4ISO* ,WiBaltic* ,
8
8
8 12
8 12
WiEstonian* , WiLantvian* Mazowia* * , CodeMJK* * ,
8
8
8*10
8
BpBRASCII* , BPAbicomp* , PcGk437* , PcGk851* ,
8 10
8 10
8
8
PcGk869* * , 8859-7ISO* * , WiGreek* , Europe3* ,
8 11
8 11
8
8
PcCy855* * , PcCy866* * , PcLt866* , 8859-5ISO* ,
8
8 11
8
8
WiCyrillic* , Bulgarian* * , PcUkr866* , Hebrew7* ,
8
8
8
8
8859-8ISO* , Bebrew8* , PcHe862* , Arabic8* ,
8
8
8
8
PcAr864* ,8859-6ISO* , OCR A* , OCR B*
For ESCP2 mode:
8
8
8
8
PcSI437* , PCTurkish1* , Pclceiandic* , 8859-ISO* ,
8
8
8
8
8
Mazowia* ,CodeMJK* , PcGk437* , PcGk851* , PcGk869* ,
8
8
8
8
8859-7ISO* ,PcCy855* , PcCy866* , Bulgarian* ,
8
8
8
8
8
PcUkr866* , Hebrew7* ,Hebrew8* , PcAr864* , PcHe862* .
13
Indicated only when NLSP Bitmap3 Font ROM for Turkey* .
Indicated only when NLSP EDG OEM Scalable Font ROM for
13
Turkey* .
1-12
EPL-5700
*10
*11
*12
*13
*14
*15
*16
*17
Indicated only when NLSP EDG OEM Scalable Font ROM for
13
Greek* .
Indicated only when NLSP EDG OEM Scalable Font ROM for
13
Cyrillic* .
Indicated only when NLSP EDG OEM Scalable Font ROM for
13
Latin* .
When changing the “SymSet” to this value, “Font Source” and “Front
Number” is set to “Resident” and “0”. So it is necessary to change
“Font Source” and “Front Number” to the font which supports this
symbol set.
Only applied to LJ4 and ESC/Page mode.
Either pitch or height will be displayed.(decided by selected font)
Factory setting for Europe and Pacific.
Factory setting for North America.
Chapter1 Product Description
1.3.4 Special(alternative) Operation
1.3.4.1 Operation at Power On
After turning the power on while pressing a particular button, and keep
pressing the switch until the paper feed lamp, toner lamp and memory lamp
are turned on, following function will start.
‰
‰
‰
Hexadecimal Damp
Turn on the power while pressing the Form Feed switch, then the
printer will enter damp mode. The received data is converted by
hexadecimal ASCII and printed out.
„ This function is canceled by Warm Boot(see page 1-8) or turning
power again.
„
Toner Reset
Turn on the power while pressing On Line switch and Form Feed
switch, the left toner quantity is reset and becomes toner full
condition. (E„„„„F)
„ Then, printer returns to the normal condition.
„
OPC Drum life reset
Turn on the power while pressing On-line switch and Continue switch.
The printer sets OPC drum life 100%.
„ Then, printer returns to the normal condition.
„
Following is not opened to the users.
‰
Rev. A
Initialization of EEPROM
„ Turn on the power while pressing On-line switch, Continue Switch and
Alt switch. Then, EEPROM setting returns to the original settings,
which were set at the factory. All setting including the total print count
is cleared.
„ Then, printer goes to Warm Boot and returns to the normal condition.
1-13
EPL-5700
‰
Chapter1 Product Description
Initialization of Panel Setting Values
Turn on the power while pressing Continue switch, then the printer
resets panel setting values to the original setting which were set at the
factory.
„ Then, printer goes to Warm Boot and returns to the normal condition.
CAUTION If you fail to up-date the program ROM correctly,
„
1.3.4.2 Up-dating ROM Program
Since the ROM programs, which were produced during the initial massproduction, are using Flash-ROM, they can be up-dated through the parallel
interface from the host computer, when it becomes necessary to up-date.
‰
Procedure for up-dating
1. Connect the printer and host computer by parallel interface cable.
2. Turn the power of the printer on, while pressing On-line, Form Feed and
Continue switches.
3. Stop pressing switches after Paper, Toner and Memory lights turn on.
Continue light and From Feed light turns off 3 seconds after other lights turn
on with flashing On-line light. The printer is ready to receive the program
data from the host computer.
4. Transfer the program data by COPY command of DOS from the host
computer, as it is shown below.
>COPY_/B_File Name_LPT1 press Return key.
Note)”_” above means to take one space.
9CHECK POINT
Printer should be receiving condition before the
data is sent from the host computer.
The printer indicates that old program is being erased, turning the Toner,
Memory and Form Feed lights on and blinking the on-line light.
Then, the printer indicates that new program is being written, turning the
Memory and Form Feed lights on and blinking On-line light.
Service Req. Error appears and the printer will not
be able to start.
‰
Solution when error occurs.
If up-dating RON fails, error is indicated and goes to Check SUM error
(service req. error) without appropriate operations.
„ Write Error
Because of defective device of Flash-ROM or defective confection
with DIMM slot, Paper, Continue and Form Feed lights turn on while
writing or erasing program , then On-line light blinks and light error is
indicated. Operation is canceled by pressing Alt switch. In this case,
old program still remains and transferred data is red but abandoned.
Up-date is proceeded by pressing On-line switch, but the printer does
not operate well.
„ Data Error
Data error is indicated by turning Toner, Continue and Form Feed
lights on and blinking On-line light.
Operation is canceled by pressing Alt switch. In this case, old
program still remains and transferred data is red but abandoned.
Up-date is proceeded by pressing On-line switch, but the printer does
not operate well.
„ Address Error
This error occurs when writing address to program ROM is done out
of range. Address error is indicated by turning Toner, Continue and
Form Feed lights on and blinking On-line light. Operation is canceled
by pressing Alt switch. In this case, old program still remains and
transferred data is red but abandoned. Up-date is proceeded by
pressing On-line switch, but the printer does not operate well.
„
Check SUM Error of Program ROM
When up-dating ROM fails, Check SUM error appears. Memory and
Continue lights turn on and On-line light blinks to indicate Check SUM
error. Press On-line switch and re-boot the printer.
5. On-line light blinks and other lights turns off after up-date process is
completed normally.
6. Press On-line switch and re-boot the printer.
Rev. A
1-14
EPL-5700
Chapter1 Product Description
1.4 OPTIONS AND CONSUMABLE
Following shows options and consumable for EPL-5700.
Table 1-15. Printer Options
Name
500 Sheet Lower Paper Cassette
Face Up Tray
Operational memory module
Code
C81287*
C81286*
Refer to Reference
Guide
C83229*
EPSON Script Level 2 module
Optional Interface Cards;
• Optional Ethernet Card
• C82357*/C82362*
• 32KB Serial Interface Card
• C82307*
• 32KB Parallel Interface Card
• C82310*
• Coax Interface Card
• C82314*
• Twinax Interface Card
• C82315*
• AppleTalk Interface Card
• C82312*
• GPIB Interface Card
• C82313*
Note)* The asterisk(*) is a substitute for the last digit of the product number,
which varies by country.
Rev. A
1-15
&+$37(5
OPERATING PRINCIPLES
EPL-5700
Chapter2 Operating Principles
2.1 OPERATING PRINCIPLES OF MECHANISM
Paper Eject Roller(F/U)
Paper Eject Roller(F/D)
Back Up Roller
Heat Roller
Charging Brush
Transfer Roller
OPC Drum
2.1.1 Overview
Mechanism part of this printer consists of rollers, gears and main motor,
which causes driving power in order to load the paper.
Sleeve Roller
Toner Feed Roller
Main Motor
Paper Feed Roller
Connecting Gear
Second paper feed
Roller
Second paper feed unit
Figure 2-1. Mechanism Parts
Rev. A
2-1
EPL-5700
Chapter2 Operating Principles
2.1.2 Paper Path
There are 2 kinds of paper feedings; multi paper feed tray(150 sheets) and
manual feed(1 sheet). Optional second paper feed unit(500 sheets) can be
installed.
The paper once loaded is carried to the transfer roller→ Fusing roller
→Paper eject roller → Paper eject tray.
Face-down paper eject
Face-up paper eject
Print head
Eject
Exposure
Fusing
Charging
Manual feed
Multi paper feed tray
Developing
Transfer
Paper feed
Paper feed
Second paper feed cassette
(optional)
Figure 2-2. Paper Path
Rev. A
2-2
EPL-5700
Chapter2 Operating Principles
2.1.3 Paper Feed Mechanism
Paper feed mechanism is shown below.
Paper Feed Sensor(PS1)
Paper Feed Roller
Paper Empty Sensor(SE1)
Push down Cam
Paper Feed Clutch
3. Separation pad method is used in order to separate each paper and
prevents of feeding the second paper together.
4. Since there is no paper size sensor mechanism in the multi paper feed
tray, the printer detects the length of paper by ON time of paper feed
sensor(PS1), and judges the paper size. So, even if the paper has the
same length, the printer judges the paper as the same size even its width
is different.
Push down Cam
Waiting mode
Paper Feed
Roller
Tray
Tray Lifting Board
Tray Lifting Plate
During paper feeding
Tray
Paper Feed Solenoid
Figure 2-3. Paper Feed Mechanism
2.1.3.1 Paper Feed Operation
1. When the paper feed solenoid(SL1) is turned on, the driving power from
main motor(M1) is transmitted to the paper feed roller through the paper
feed clutch(one way clutch), then, the paper feed roller rotates.
2. At the same time, the push down cam also rotates, then, the tray lifting
plate stands up. The paper in the tray is carried into the printer by the
paper feed roller. (see figure2-4)
Rev. A
Figure 2-4. Paper Feed Operation
2-3
EPL-5700
Chapter2 Operating Principles
2.1.3.2 Paper Empty Sensor
2.1.4 Second Paper Feed Unit(Option)
Paper empty sensor(PE1) is mounted at the upper parts of the multi paper
feed tray and detects if there is any paper in the tray or not.
If there is a paper in the tray, actuator stands up and the sensor goes to
OFF condition. Also, if there is no paper, actuator falls into the hole of tray,
and the sensor goes to ON condition.
2.1.4.1 Mechanism
Since second paper feed unit does not have driven motor, the motive power
for feeding paper and carrying paper is transferred from the connecting gear
on the main motor. Paper feed method is the same as from multi paper feed
tray.
As separation method, separation pad method is used for multi paper feed
tray, but the separator claw is used for the second paper feed unit.
The separator claw is the method that uses elasticity between the separator
installed at the paper feed cassette and the paper. Only one paper is fed at
one time paper feed operation. Therefore, it is not good for the thick paper,
but it is good for thin paper. Paper feed solenoid(SL21) is controlled from
printer body side through the relay board of the second paper feed unit.
Paper Feed Roller
Connecting Gear
Relay Board
Paper Empty Sensor
Paper
Paper Feed Solenoid
Figure 2-5. Second Paper Feed Unit Mechanism
Rev. A
2-4
EPL-5700
Chapter2 Operating Principles
2.1.4.2 Paper Empty Sensor
2.1.4.3 Cassette Type Sensor
On the relay board, the paper empty sensor is mounted and detects if there
is any paper in the paper feed cassette. If there is any paper in the cassette,
the actuator is stood up, and the sensor goes to OFF condition.
If there is no paper, the actuator falls into the hole on the paper lifting up
plate, and the sensor is turned ON.
Cassette type sensor switch with sector-shaped lever is mounted on the
second paper feed unit. When the cassette for each paper size is inserted,
the switch presser on the right side of each cassette pushes the lever
according to the paper size. Then, the cassette type sensor switch is turned
On or Off. This switch is the 3-consecutive switch, and the printer
distinguishes the cassette type(paper size) by combination of ON/OFF
condition of each switch.
Cassette Type Sensor Switch(SW21)
Lever
Off
On
Paper Feed Cassette
SW21-3
SW21-2
SW21-1
Bottom Side
Figure 2-6. Cassette Type Sensor Mechanism
Rev. A
2-5
EPL-5700
Chapter2 Operating Principles
2.1.5 Laser Exposure
2.1.5.1 Sub Scanning Direction(Vertical scanning direction)
An electrostatic latent image is created on the OPC drum by the laser beam
emitted from the print head. In order to count appropriate timing to print the
image, following control is performed.
1. After the printer receives printing signal, the polygon motor(M2) and main
motor(M1) rotate, and paper feeding starts.
2. After the fed paper tip turns ON the paper feed sensor(/TOD signal),
main control circuit sends /VIDEO signal to the print head, and printing
starts.
3. When the print starting position moves from the first line to the second
line, it is moved down by delaying emitting time of the /VIDEO signal.
Print Head
PC Drum
SOS Sensor
Laser Diode
Laser diode
Control Board
Polygon Motor
Figure 2-7. Exposure Mechanism
Rev. A
2-6
EPL-5700
Chapter2 Operating Principles
2.1.5.2 Main Scanning Direction(Horizontal scanning direction)
2.1.6 Charging Process
In order to make the timing of laser emission, which is emitted every one line
is scanned, SOS sensor is mounted on the laser diode control board.
2.1.6.1 Overview (Refer to Figure2-9 on the next page)
2.1.5.3 Printable Area
1. Controller sends /VIDEO signal, which suits the paper size, to the engine.
2. Controller determines print starting position by /TOD signal(sub scanning
direction) sent from engine and /HSYNC signal.
3. Print head starts laser exposure after receiving /VIDEO signal.
/VIDEO
4 mm
/TOD
/VIDEO
/HSYNC
It is charged by giving static electricity to OPC drum(Organic
Photoconductor) before laser exposure.
Surface of OPC drum is charged by rotation brush and pre-charging film.
Electric potential on the surface of OPC drum after charging is about 800 V.
Charging by rotation brush and pre-charging film has low rate of ozone
occurrence by corona discharge, and also has low voltage because of direct
charging to the OPC drum. Also, it is excellent in uniformity of charge
potential and stability. Rotation brush is rotated when the driving power is
transmitted from main motor(M1) to the gear of the rotation gear. The
surface of the brush is charged by pulse(40Hz) duration -1286 VDC and 336 V.
Before charging by rotation brush, pre-charging film performs charging in
advance in order to improve efficiency of charging. -1280VDC is provided to
pre-charging film through the diode from pulse, which is charged to the
rotation brush. Paper powder cleaner removes paper dust attached at the
OPC drum. The surface abrasive removes obstacles on the OPC drum that
can not be removed by paper powder cleaner so that it does not give bad
influence on the printing quality.
Printable Area
4 mm
Figure 2-8. Printable Area
Rev. A
2-7
EPL-5700
Chapter2 Operating Principles
15msec 10msec
2.1.6.2 Cleaning OPC drum
-1286V
Toner which is not transferred to the paper because of paper jam or paper
size error needs to be cleaned since it remains on the OPC drum and
makes its surface dirty. Cleaning sequence is as follows.
1. Although toner on the OPC drum is collected by the rotation brush, since
it is accumulated on the surface, toner which is charged plus is changed
to minus by charging bias -1280VDC to the rotation brush. At this time,
reversed bias(-1KV) is charged to the transfer roller.
2. Toner moves down to the OPC drum side whose electric potential is low,
and is collected in the development part.
It goes to this cleaning at the idling state when the cover is closed after the
paper jam is cleared. Also, it goes to this cleaning sequence at the size
error.
Drum Cartridge
-336V
Rotation Brush
Surface abrasive
Laser Exposure
1280 DVC
Paper Powder
Cleaner
Developing Sleeve Roller
Pre-charging film
Transfer Roller
Drum Cover
OPC Drum
Figure 2-9. Charging Mechanism
Rev. A
2-8
EPL-5700
Chapter2 Operating Principles
2.1.7.2 Function of each parts in the development part
2.1.7 Developing
Table below shows each parts with its function.
2.1.7.1 Overview
Toner image is created by giving toner to the electrostatic image on the
OPC drum.
OPC Drum
Toner Hopper
Toner Agitation Wing
Toner Blade
Table 2-1. Parts of Developing Mechanism
Name
Toner Hopper
Toner agitation
wing
Toner sending
roller
Sleeve roller
Resin sleeve
OPC drum
Toner blade
Toner sending Roller
Sleeve Roller
Resin Sleeve
Bias Seal
Bias seal
Function
Toner is in.
It agitates toner hopper inside, and sends toner to
the roller part.
Transfers toner to the sleeve roller part.
Rotates resin sleeve.
Transfers toner to the OPC drum surface.
Creates image on the surface by laser beam.
Performs development by resin sleeve, and
transports the developed image to the paper
surface.
Put the toner thin and evenly on the resin sleeve.
Charges toner minus between toner blade and
resin sleeve.
Collects toner which does not attach to the OPC
drum.
Figure 2-10. Developing Mechanism
The developing bias changes voltage as follows, in order to enable the
printer to adjust printing tones.
Developing Bias Terminal
Toner Blade Bias Terminal
Table 2-2. Tone Adjustment by Developing Bias Changes
Bottom Seal Bias Terminal
Figure 2-11. Bias Terminals
Rev. A
Developing Off (Reversed bias)
+100V
1
Light
−240V
2
−260V
3
−280V
↑
4
Initial Value
−300V
5
−313V
↓
6
−326V
7
Dark
−339V
Note) During the print start or cleaning, reversed bias is charged in order to
prevent the toner of developing part from moving to the OPC drum.
2-9
EPL-5700
Chapter2 Operating Principles
OPC drum
2.1.8 Transfer Process
2.1.8.1 Overview
Transfer roller
Paper
Discharge Needle
Transfer rolle
Transfer bias
(3KV)
OPC drum
Reversed bias
(-1KV)
This process is to transfer the toner image, which is created on the
developing process, to the OPC drum. Transfer roller is charged with
transfer bias(+3KV).
Transfer method is not the corona transfer but roller transfer method by the
transfer roller. In the roller transfer, ozone caused by corona discharge does
not occur, and chances of dislocation for the transferred image is very small,
since the paper is always sandwiched between drum and transfer roller
during printing.
The transfer current is adjusted from 6 to 10 µ A(8 µ A is initial value),
according to the paper type and printing duty. This can improve the
effectiveness of the transfer, especially under the high temperature with high
humidity environment. Left over electric potential on the paper is removed by
the discharge needle. Since the left toner from OPC drum attach to the
transfer roller, it is necessary to clean the transfer roller. In the cleaning, the
reversed bias(-1KVDC) is charged on the transfer roller and returns the
toner to the OPC drum. This cleaning sequence is performed with OPC
drum cleaning. Even at the cleaning of the transfer roller before printing, the
reversed bias(-1KV) is charged on the transfer roller.
Paper
Figure 2-12. Transfer Mechanism
Rev. A
2-10
EPL-5700
Chapter2 Operating Principles
2.1.9.2 Fusing Temperature Control Circuit
2.1.9 Fusing Process
2.1.9.1 Overview
In this process, toner which is transferred to the paper in the transfer
process is fused to the paper. Fusing system this printer uses is the heat
roller fusing system. The toner on the paper is melted by pressure from the
paper traveling through the back up roller and the heat roller, which is
heated up by the heater lamp. The heat roller is mounted at 200M Ω. This
prevents the transfer current from leaking along with the paper(electrostatic
offset).
Paper
The thermister (TH1) detects the surface temperature of the fusing heat
roller, and input analog voltage into IC201-78. According to the detected
temperature, the heater lamp (H1) is turned On or Off by the heater lamp
On/Off signal, which is input by IC201-55, and controls the temperature of
the fusing part.
The heater lamp is 450W. 3 different voltages are used according to the
destination; 100V, 120V and 230V.
If the heat lamp is not turned off even when the thermister detects
abnormally high temperature, thermostat turns off the heater current as
soon as the temperature of the heat roller reaches 195 °C, and prevents the
heat roller from increasing its temperature.
Seperating claw
Main Control Board
Relay Connector
IC201
CN202
1
2
TH1
Thermistor
1
2
78
1
2
DC5V
CN1
CN1
CN2
Back-up roller
H1
Heater Lamp
1
2
3
HEAT_N
N.C.
HEAT_L
+24V
GND
GND
+5V
FUSER_LAMP
1
2
3
4
5
GND
GND
Power Supply Board
Thermostat
CMPIN
CN207
1
2
3
4
5
L
Q201
IC202
H
Thermister
1
3L
2L
79 CMPOUT
55
P01
TS1
DC5V
Thermostat
GND
L H1: ON
H H1: OFF
Figure 2-14. Fusing Temperature Control Circuit
Heater lamp
Front guide board
Heat roller
200Mohm
When the power switch is turned on, warm-up starts after the printer
performs initialization, then, the heater lamp is turned on. The heater lamp
stays On until the temperature of the heat roller reaches about 185 °C, and
the following temperature controls are performed.
‰
Figure 2-13. Fusing Mechanism
Rev. A
Temperature control mode1
This mode controls the temperature to maintain 185 °C during printing and
105 °C during waiting mode. This mode goes to mode2 after 45 seconds.
2-11
EPL-5700
Chapter2 Operating Principles
Temperature detected by thermister
Heat Roller Temperature( C)
Warm-up
During printing
Table 2-3. Heat Roller Temperature Control
Temperature control before
it is interrupted.
185
175
Mode1
Mode2, 3, or power is off.
Waiting mode
2.1.9.3 Prevention of paper bent from the fusing
Mode3
Sometime the paper ejected from the fusing is bent in wave shape. The
reason why this happens is that the temperature around the fusing roller is
not even. In order to prevent this, the printer rotates the half circle after the
printer receives the printing order, and makes the temperature around the
fusing roller even.
105
Mode1
45 sec.
Mode2
208 sec.
Temperature right after the
temperature control started.
Less than
More than
More than
50 °C.
50°C less
100 °C.
than100 °C.
Mode1
Mode1
Mode2
Mode3
Figure 2-15. Heat Roller Temperature Control
‰
Temperature Control Mode2.
This mode goes to mode 3 after 208 seconds. The temperature of the fusing
roller decreases gradually approximately from 185 °C to 175 °C.
‰
Temperature Control Mode3.
This mode controls the temperature to maintain 175 °C during printing and
105 °C during waiting mode. Unless the upper cover is opened or error
happens, this mode is maintained.
Rev. A
2-12
EPL-5700
Chapter2 Operating Principles
‰
Face-down eject
Paper is ejected to the face down tray located upper side of the printer.
2.1.10 Paper Eject
2.1.10.1 Face up/Face down disengage mechanism
The paper which passed the fusing is ejected either face-up or face-down by
the disengage mechanism. By operating the disengage lever manually,
which is located at the paper eject mouth, tray disengage guide in the printer
also operates and changes over the face-up eject or face-down eject.
‰
Face-up eject
Paper is ejected to the optional face-up tray. Face-up paper eject is
available even without optional face up tray. Since the resistance is least
against the paper path when the paper is ejected, it is good for thick paper.
Table 2-4. Paper volume in the tray
Paper Eject Disengage
Lever
Face-up Eject
Paper volume that each tray can hold(Regular paper)
Face down tray
100 sheets
Face up tray
20 sheets
Face-down Eject
Face-up Eject Roller
Face-down Eject Roller
Paper Eject Disengage
Guide
Figure 2-16. Paper Eject Mechanism
Rev. A
2-13
EPL-5700
Chapter2 Operating Principles
Table 2-5. Function of Each Electric Parts
2.2 ELECTRIC CIRCUIT
Electric circuit of this printer consists of main control circuit, power supply
unit, high voltage board, laser diode control board(in the print head unit).
Following shows location of electric circuit, sensors and motors. Table2-6
shows function of each circuit and board.
Paper Eject Sensor
Thermister
Thermostat
Heater Lamp
Power Unit
Name
Heater lamp
High voltage board
High Voltage Board
Paper Feed Sensor
Control Panel Board
Main Control Board
Main motor
Paper empty sensor(PE1)
Inter Lock Switch
Main Motor
Paper Feed sensor(PS1)
Paper eject sensor (PS3)
Power Switch
Power unit
Laser Diode Control Board
Paper Feed Solenoid
Paper Empty Sensor
Figure 2-17. Locations of Electric Parts in the Printer
Main control board
Operation panel board
Rev. A
Function
Heats up the heat roller.
Provides following voltages to each
following unit.
• Rotation charge brush: Charging
voltage
• Sleeve roller: Developing bias voltage.
• Toner regulation board: Developing
blade voltage.
• Toner collecting board: Collecting blade
voltage.
• Transfer roller: Transfer voltage.
Driving power source for the printer.
Detects if there is any paper or not.
• Paper in: Low
• Detects the paper is fed.
• In order to judge the paper size, PS1
detects the paper length. But paper
width can not be detected.
•Paper in: Low
Detects the paper is ejected to judge the
paper jam.
• Provides power supply voltage to each
circuit in the printer, generating dc
voltage from ac power.
• AC power is supplied to the heater
lamp.
This board has video controller part and
engine controller. This board
communicates with host computer through
the interface, and controls all operations.
Switches to operate the printer are
mounted on this board.
2-14
EPL-5700
Chapter2 Operating Principles
Table 2-6. Function of Each Electric Parts(Cont.)
Name
Inter lock switch
(S2)
Laser diode
control board
Paper feed
solenoid (SL1)
Thermister (TH1)
Thermostat(TS1)
Function
Detects open/close condition of the upper
cover and blocks output power except DC5V,
when the cover is opened.
• Cover is closed; On
Detects printing start position by emission of
the laser diode and SOS sensor, and emits
the laser beam to the OPC drum by image
signal.
Transmits driving power of the main motor to
the paper feed roller.
Detects the surface temperature of the heat
roller and feeds back to the main control
board.
Blocks electricity to the heater lamp when the
temperature of the fusing part increases
abnormally.(195 °C)
Following shows position of electric parts functions of the optional second
paper feed unit.
Cassette Type Sensor
Switch
Relay Board
Paper Empty Sensor
Paper Feed Solenoid
Figure 2-18. Locaion of Electric Parts in the Second Paper Feed
Cassette
Table 2-7. Function of Electric Parts of Second Paper Feed Cassette
Name
Paper feed
solenoid
(SL21)
Cassette type
sensor switch
Paper empty
sensor(on the
relay board)
Relay board
Rev. A
Function
Controls gear/clutch, which transmits driving
force of the main motor to the paper feed roller.
• Solenoid On: Transmission of driving force.
3 consecutive switches detect the difference of
the cassette type determined by paper size.
Detects paper empty.
• Paper in: LOW.
Receives control signal or power supply from the
printer body and sends them to the electric parts
in the second paper feed unit.
2-15
EPL-5700
Chapter2 Operating Principles
2.3 CONTROLLER OPERATING PRINCIPLES
Main Controller Part
C234 Main-B board, the controller of this printer consists of main controller
part and engine controller part. The main controller part processes printing
order from the host computer and generates video signal. The engine
controller part drives the engine according to the video signal from the main
controller and performs printing.
‰
‰
Main functions of the main controller part;
Communication with host computer (Receiving printing data and
sending status)
„ Processing printing data(Analyzing command and generating video
signal)
„ Sending video signal to engine controller
„ Monitoring panel or switch conditions
CPU
uPD30200GD
ASIC
E05B41BA
„
Main functions of the engine controller;
Receiving the video signal and sending the engine status
Monitoring sensors
Controlling each mechanism of the engine
Controlling the optional lower cassette
„
„
„
„
Addr.
ASIC
E05B40BA
DRAM
Panel
Data
Paralle
RAM SIMM
RS-232C
Type-B I/F
Font ROM
EEPROM
ProgramROM/
Mask ROM
Optional Font
ROM
ASIC
E05B28KA
Engine Controller Part
CPU
M38073E4FS
Engine part
Figure 2-19. Block Diagram of C234 Main-B circuit board
Rev. A
2-16
EPL-5700
Chapter2 Operating Principles
Main composition elements and functions of C234 Main-B board are
following.
Table 2-8. Main elements of main controller in C234 Main-B board
Name
CPU
µPD30200GD
ASIC
E05B41BA
Location
IC1
IC4
ASIC
E05B41BA
IC10
ASIC
E05B28KA
IC16
Program
ROM/Mask
ROM
CN3
DRAM
IC14/15
Mask ROM
IC5/6
EEPROM
NM93C86A
IC9
Option Font
ROM
CN2
Rev. A
Function
RISC-CPU
Table 2-9. Main elements of main controller in C234 Main-B board
Name
CPU
M38073E4FS
Motor Drive IC
TEA3718SDP
Location
IC201
Function
Engine control
IC204/205
Main motor driving
This ASIC controls following;
• Memory control(RAM/ROM)
• DMA control (Video, I/O)
This ASIC controls following;
• Host I/F control
• Control panel
• Interruption control
This ASIC controls following;
• RIT(Resolution Improvement
Tech.)/PGI(Photo Grade Improvement)
function control
• Video I/F control(communication with
engine controller)
DIMM module which stores control
program. Flash-ROM(C215PROG) is built
in the initially mass produced printers.
Mask ROM(C215PROGB) is built in later
mass produced printers.
2 16Mbit(x16)s are mounted and operates
as standard memory.
2 8Mbit(x16)s are mounted and stores
font data.
Memorizes each setting information and
status information with 16Kbit(x16)
capacity.
Stores optional font in 4MB ROM DIMM.
2-17
&+$37(5
TROUBLESHOOTING
EPL-5700
Chapter3 Troubleshooting
3.1 OVERVIEW
3.2.2 Coil Resistance of Main Motor
Like other page printers, there are many error modes in this printer, making
identification of failed parts or component more difficult. In order to solve this
problem, this chapter shows how to check and identity malfunction from the
major components, and how to identify the causes from the errors or
abnormal symptom.
By measuring the coil resistance of the main motor, the motor can be
checked if it is working all right or not. Following table shows how to
measure the coil resistance.
Table 3-2. Coil Resistance of the Motor
Motor
3.2 ELECTRIC CHECK POINT
CAUTION
„
„
Main Motor
Measuring
Point
Pin1 and
Pin2, or Pin3
and Pin4.
Use the recommended fuses.
Avoid checking the IC terminal directly by the
tester. Check the connector on the board to
judge if it is not defective or not.
Pin1
3.2.1 Rating of Power Fuse F1
Measuring
Set the multi-meter to
the resistance measuring
range. Connect the one
lead to one pin, and
connect the other side of
lead to the another pin
then measure the coil
resistance.
Value of coil
resistance
2.4 Ω ± 10%
(25 °C)
Pin4
Table below shows rated power fuse F1.
Table 3-1. Rated Power Fuse
Power Voltage
100V type
200V type
F1
8A 125V
4A 250V
Pin3
M
Pin4
Pin1
Pin2
Figure 3-1. Motor Connection
Rev. A
3-1
EPL-5700
Chapter3 Troubleshooting
3.2.3 Checking Sensors
Table below shows the easy way to check the various sensors in this printer.
Table 3-3. Sensor Check List
Sensor
Name
Paper Empty
Sensor
Measuring
Terminals
Connector
CN212/Pin1 and
Pin2
Paper Feed
Sensor
Connector
CN210/Pin1 and
Pin2
Paper Eject
Sensor
Connector
CN208/Pin2 and
Pin3
Interlock
switch
Thermister
Power board
connector CN3
Connector
CN202/Pin1 and
Pin2
Connector
CN211/Pin5 and
Pin6
Paper empty
sensor(in the
second paper
feed unit)
Cassette
type sensor
switch(in the
second paper
feed unit)
Rev. A
Connector
CN211/Pin7, Pin8
and Pin9.
Signal Level
High
Sensor
Condition
Paper in
Low
High
Paper out
Paper out
Low
High
Paper in
Paper out
Low
--Analog output
Paper in
On/Off by switch
operation.
1.7MΩ (20 °C)
High
Paper in
Low
Paper out
Refer to Chapter2 “Second Paper
Feed Unit”.
3-2
EPL-5700
Chapter3 Troubleshooting
Table 3-5. Printer Message List (Cont.)
3.3 PRINTER CONDITION
Condition
Toner out
3.3.1 Indication
This printer always monitors its condition and indicate it on the control panel
by necessity. Indication of the printer condition are classified following as
follows.
‰
‰
‰
‰
Status:
No error.
Error:
Error occurs.
Warning :
Warning occurs.
Service Req. Error: Service Req. Error occurs and requires service by
service man.
Table 3-4. Printer Message List
Condition
Turn on
System Check
Reset all
Reset
Warming-up
Paper Jam/ Feed
Jam/Exiting Jam
Printer open
Paper out
Paper set
Rev. A
Indication
All lights On.
Memory light On, then goes
Off.
All lights are On.
Paper, toner, memory light
are On.
On-line light flashes.
Paper and Continue lights
On.
Paper and Continue lights
On.
Paper light flashes, and
Continue light On..
Paper and Continue lights
are on.
Status
Status
Status
Status
Status
Status
Error
Error
Memory Overflow
Print Overrun
Service Req. Error
Check paper size
Image optimum
Need Memory
Toner Low
Indication
Toner and Continue lights
On.
Memory light On. Continue
light flashes.
Memory light On. Continue
light flashes.
All lights flash(0.8 sec.) and
off(0.2 sec), then individual
light flashes on and off in a
repeating cycle.
Paper light flashes.
Memory light flashes.
Memory light flashes.
Toner light blinks.
Status
Error
Error
Error
Service Req.
Error
Warning
Warning
Warning
Warning
3.3.1.1 “Status” Conditions
Here explains each status condition.
‰
System Check:
‰
‰
‰
Reset All:
Reset:
Warm-up:
Printer is checking condition, or performing
initialization.
Printer is processing warm boot.
Printer is processing reset.
Printer is warming up.
Error
Error
3-3
EPL-5700
3.3.1.2 “Error” Conditions
Here explains error condition and procedure to recover from it.
‰
Paper Jam.
Paper is jammed in the printer path.
„ Open the top cover(printer cover) and clear the jammed paper.
„ After jam is cleared and warming-up is completed, the jammed page’s
print data is automatically printed.
‰
Exit Paper Jam.
Paper jam occurs around the OPC drum(photo conductor unit). This error is
also indicated when the paper jam occurs around the paper exit area.
„ This error is cleared after you open the top cover and remove the
jammed paper, and close the cover.
„ After jam is cleared and warming-up is completed, the jammed page’s
print data is automatically printed.
‰
Feed Jam.
Paper is not feeding into the printer from the tray or optional cassette, or has
jammed on its way into the printer.
„ Remove all the paper from the paper tray along with any sheets that
have fed part way into the printer. Open the top cover(printer cover)
and make sure that there is no jammed or torn-off paper left in the
printer. Then, close the cover.
„ After jam is cleared and warming-up is completed, the jammed page’s
print data is automatically printed.
Chapter3 Troubleshooting
‰
Paper Set
This error appears if “Size Ignore” is off in the printer driver and the paper
loaded in the tray does not match the required paper size.
„ Replace the paper with the correct size of paper and press Continue
switch on the control panel, or turn on “Size Ignore” in the printer
driver.
„ If “Auto Cont” on the panel setting is set off(refer to page1-10),
replace the paper with correct size of paper and press Continue
switch on the control panel.
•Or, press Continue switch without replacing paper.
•Perform reset or warm boot.
„ If “Auto Cont” on the panel setting is set on, this error is canceled
automatically after a while.
‰
Toner Out
This error indicates toner is not installed, or need to replace the toner
cartridge.
„ This error is canceled after installing a new toner and closing the top
cover. Toner counter is reset as soon as the Continue switch is
pressed. However, the toner counter is reset as long as Continue
switch is pressed after closing the top cover, even if you do not
actually change with a new toner.
‰
Printer Open
The top cover is open.
„ Close the top cover.
‰
Paper Out
There is no paper in the specified paper source.
„ Load paper of the indicated size into the source.
Rev. A
3-4
EPL-5700
Chapter3 Troubleshooting
„
‰
Memory Overflow
The printer has insufficient memory available for the current task.
„ If “Auto Cont” on the panel setting is set off(refer to page1-10), Press
the Continue switch on the control panel. If the error occurs because
the current task data exceeds the buffer capacity, the printer prints
out the page forcibly, which was made before the error occurs. If the
errors occurs because of failing to register particular fonts, or micropattern, the printer ignores those command and continue processing.
„ If “Auto Cont” on the panel setting is set on(refer to page1-10), this
error is canceled automatically after a while. If the error occurs
because the current task data exceeds the buffer capacity, the printer
prints out the page forcibly, which was made before the error occurs.
If the errors occurs because of failing to register particular fonts, or
micro-pattern, the printer ignores those command and continue
processing.
„ Refer to table below for recommended memory module, if you need to
add more memory.
If “Auto Cont” on the panel setting is set on(refer to page1-10), this
error is canceled automatically after a while. After the error is
canceled, if there is memory capacity, the printer tries to print that
data one time. However, If there is no memory capacity, or if error
occurs again, the printer erase that data and goes to the next page.
‰
Service Req. Error
A controller error or a print engine error has been detected.
„ Turn off the printer, and wait at least five seconds then turn it back on.
If this message still occurs, refer to section 3.3.1.4 Service Call Error.
Table 3-6. Memory Module
RAM Capacity
No RAM installation
4MB installation
Function
Printing up to 600dpi is
possible.
Printing is possible in all printing
conditions
‰
Print Overrun
The required time to process the print data exceeds the print engine speed
because the current page is too complex.
„ Turn on “Page Protect” on the printer setting dialog of the panel menu
of your printer driver, or use the remote control panel to change this
setting.
„ If “Auto Cont” on the panel setting is set off(refer to page1-10), Press
the Continue switch on the control panel.
•If there is no memory capacity, or if error occurs again, the printer
erase that data and goes to the next page.
•Perform reset or warm boot.
Rev. A
3-5
EPL-5700
Chapter3 Troubleshooting
‰
3.3.1.3 “Warning” Conditions
Here explains warning conditions and how to cancel it. Even if warning
conditions occur, they do not effect on the printer’s operation.
‰
Check Paper Size
The paper size setting is different from the size loaded in the printer. Check
to see if the correct size of paper is loaded in the tray, then,
„ Press Continue switch.
„ Perform reset or warm boot.
Note) If “Size Ignore” is On in the printer driver, this warning does not occur.
This printer detects paper length for paper size. Therefore, following paper
might not be able to detect its size difference.
Table 3-7. Mistakable Papers
Type
Regular
Paper
Special
Paper
Rev. A
Paper Size
A4
A5
JIS-B5
LT
HLT
LGL
EXE
GLG
GLT
F4
3x5”
Post Card
MON
C10
DL
C5
C6
I-B5
Paper
Length(mm)
297
210
257
294(11”)
215.9(8.5”)
355.6(14”)
266.7(10.5”)
330.2(13”)
266.7(10.5”)
330
127(5”)
148
190.5(7-1/2”)
241.3(9-1/21”)
220
229
162
250
Mistakable paper size
LT
MON, HLT, DL
GLT, EXE, I-B5, C10
GLT, EXE, A4
DL, A5, C5
--LT, GLT, JIS-B5, I-B5
F4
LT, EXE, JIS-B5, I-B5
GLG
----A5
C5, JIS-B5, I-B5
HLT, C5, A5
C10, HLT, DL
--GLT, EXE, JIS-B5, C10
Toner Low
The printer is almost out of toner or the toner left level reaches “0”, and
printing will be stopped. This error is canceled by pressing Continue switch.
„ Exchange with new toner and close the top cover. Pressing Continue
switch resets the toner counter automatically. However, even if you
don’t replace with a new toner and press Continue switch after closing
the top cover, the toner counter is reset.
‰
Image Optimum
The printer can not print at the requested quality level because of insufficient
memory, and the printer reduces the quality automatically so that the printer
can continue printing.
„ Add more memory, or set Print Quality to 300 dpi and Page Protect to
Off temporarily in the printer driver.
„ Press “Continue” switch on the panel to cancel this warning indication.
‰
Need Memory
The printer has insufficient memory available for the current task.
„ Add more memory to the printer.
„ Press “Continue” switch on the control panel to cancel this indication.
•If the printer escape from this warning during the data processing,
perform reset or warm boot.
3-6
EPL-5700
Chapter3 Troubleshooting
Table 3-9. Service Req. Error List(cont.)
3.3.1.4 Service Req. Error
If this error is detected, turn off the printer, wait at least 5 seconds and turn it
back on. If this error still occurs, refer to the error code list below for
troubleshooting.
Table 3-8. Service Req. Error List
Paper
Cause
Light
Engine Related Errors
z
Abnormal Fusing
Abnormal Main
Motor
z
Abnormal Polygon
Motor
z
Abnormal Laser
Engine
Communication
Error
Controller Related Errors
CPU
Error((unsupporte
d interrupt)
z
CPU Error
CPU Error
z
CPU Error
CPU Error
(address
misalignment)
z
CPU Error
(address
misalignment)
CPU Error
z
CPU Error
CPU Error
Note) z means light is on.
Rev. A
Toner
Light
Memo
ry
On line
Form
Feed
Contin
ue
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
Paper
Cause
Light
Controller Related Errors
z
CPU Error
CPU Error
z
CPU Error
CPU Error
z
CPU Error
CPU Error
z
CPU Error
CPU Error
z
CPU Error
CPU Error
z
CPU Error
CPU Error
z
CPU Error
CPU Error(break
error)
z
IPL Error
(controller failure)
Standard RAM
Error(RAM not
recognized)
z
Standard RAM
Error(Minimum
stack
unrecognized)
Standard RAM
Error(Memory
address less than
4MB)
z
Optional RAM
Error(Memory
address 4MB or
more)
Toner
Light
z
z
z
z
z
z
z
Memo
ry
z
z
z
z
z
z
z
Online
z
z
z
z
z
z
z
Form
Feed
z
z
z
z
z
z
z
z
z
z
z
z
z
z
Contin
ue
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
3-7
EPL-5700
Chapter3 Troubleshooting
‰
Table 3-10. Service Req. Error List(cont.)
Paper
Cause
Light
Controller Related Errors
Rom checksum
error (bit 0 to 15,
font)
z
Rom checksum
error (bit 16 to 31,
font)
Rom checksum
error (bit 0 to 7,
program)
z
Rom checksum
error (bit 8 to 15,
program)
Rom checksum
error (bit 16 to 23,
program)
z
Rom checksum
error (bit 24 to 31,
program)
z
Cartridge access
error
EEPROM write
error
z
EEPROM write
counter overflow
Engine
initialization error
Other hardware
error
z
Software error
Note) z means light is on.
Rev. A
Toner
Light
Memor
y
Online
Form
Feed
Contin
ue
Abnormal Laser
Laser diode emits light forcibly 200m sec after the polygon motor starts
rotation, and adjusts its power. During this power is adjusted, this error is
detected when the adjustment signal goes out of normal value.
‰
z
„
z
z
z
z
z
z
z
z
z
Abnormal Polygon Motor
„
„
‰
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
/SSCAN signal is not detected within 0.8 second after polygon motor
is turned on.
The rotational number of polygon motor does not reach the range of
±0.5% within 5.5 seconds after the polygon motor is turned on.
After polygon motor is turned on and the rotational number of polygon
motor settles within ±0.5%, that rotational number reaches 5.5
seconds continuously and go beyond ±3%.
Abnormal Fusing
When the thermister detects that the temperature exceeds 210 °C for
50m sec, this error is detected.
„ Thermister error is detected if the temperature difference by the
thermister is below the standard value and lasts for 50m sec,
comparing the temperature by the thermister from 8 to 12 seconds
after warming-up and the temperature by the thermister just when the
warming-up starts.
„ If the temperature by the thermister does not reach the setting
temperature within 45 seconds after warming-up starts, fusing
abnormal rising temperature is detected.
„ At each mode, when the temperature by the thermister goes below
the setting temperature for 50m sec consecutively, fusing abnormal
low temperature error is detected.
„
3-8
EPL-5700
Chapter3 Troubleshooting
3.3.2 Paper Jam Sensor
3.3.2.2 Paper Jam Sensor Conditions
3.3.2.1 Overview
‰
This sensor checks if there is any paper in the printer or not by detecting the
conditions of signals from paper feed sensor and paper eject sensor.
The paper jam sensor during the paper passing in the printer monitors
condition by detecting rise and fall of paper feed sensor signal and paper
eject sensor signal. All the operation is turned off when the paper jam is
detected(except for continuous printing and single printing).
‰
‰
Continuous Printing
The paper jam is detected if the paper feed sensor is not turned On
within 2.8 seconds after the paper feed starting(in other words, the paper
feed roller starts rotating by turning on the paper feed solenoid) from
multi-paper feed tray or second paper feed unit. If there is any
transporting paper in the printer, all driving is turned off after the all
papers in the printer are ejected.
Single Printing
The paper jam is detected if the paper feed sensor is not turned On
within 2.8 seconds after the paper feed starting(in other words, the paper
feed roller starts rotating by turning on the paper feed solenoid) from
multi-paper feed tray or second paper feed unit. If there is no paper in
the fusing mechanism, the heater light is not turned off but other driving
is turned off.
Rev. A
‰
‰
‰
‰
‰
The paper feed sensor is not turned On within 2.8 seconds after the
paper feed starting(in other words, the paper feed roller starts rotating by
turning on the paper feed solenoid) from multi-paper feed tray or second
paper feed unit.
The paper eject sensor is not turned Off within 8.2 seconds after the
paper’s heading tip reaches the paper feed sensor(in other words, the
paper feed sensor is turned on).
The paper eject sensor is not turned on within 2.84∼3.79 seconds after
the paper’s heading tip reaches the paper feed sensor(in other words,
the paper feed sensor is turned on).
The paper eject sensor is not turned Off within 2.6 ∼3.63 seconds after
the paper’s ending tip passes the paper feed sensor(in other words, the
paper feed sensor is turned off).
When the power switch is On, or upper cover is closed, the paper feed
sensor is On.
When the power switch is On, or the upper cover is closed, the paper
eject sensor is On.
3.3.2.3 Resetting the Paper Jam
After the paper jam is cleared, the error is canceled by closing the upper
cover.
3-9
EPL-5700
Chapter3 Troubleshooting
3.4.1.2 Paper Jam at Paper Feed and Transporting
3.4 TROUBLESHOOTING
Follow the number in the Check Item so that you can find out malfunction
parts easily and perform necessary repair service.
3.4.1 Handling Paper Jam
3.4.1.1 Paper Jam at power on
Table 3-11. Handling the Paper Jam 1
Check Item
1. Is there any paper left?
2.Does the actuators of
paper feed sensor, paper
eject sensor work?
Yes
No
Yes
Remedy
Remove all papers.
Check the lever operation and
re-assemble it or replace with
necessary parts.
Replace sensor, relay
board(in case of paper feed
sensor in the second paper
feed unit), or replace the main
control board.
Table 3-12. Handling the Paper Jam2
Check Item
1.Do the Paper feed roller and
second paper feed roller
rotate?
2.Is the paper recommended
paper?
3.Is the paper bent or wrinkle,
or wet?
4.Is the paper feed roller
deformed? Or is there any dirt
by paper dust or friction?
5.Does the actuator of the
paper feed sensor work
normally?
No
Remedy
Exchange the paper feed
solenoid.
No
Use the recommended paper.
Yes
• Exchange the paper.
• Advise the user about paper
storage.
Exchange the paper feed roller.
Yes
Yes
• Check the lever operation and
re-assemble.
• Exchange the necessary
parts.
• Replace the sensor, relay
board(in case of the paper
feed sensor in the second
feed unit), or replace the main
control board.
Exchange the transfer roller.
Yes
Exchange the fusing unit.
No
Exchange the upper cover.
No
Check the lever operation and
re-assemble it or replace with
necessary parts.
Exchange the fusing unit,
sensor, or main control board.
No
Yes
6.Is the transform roller
deformed? Or is there any
worn-out by friction or any dirt?
7.Is the fusing roller
deformed? Or is there any
worn-out by friction or any dirt?
8.Does the paper eject roller
rotate?
9.Does the actuator of the
paper eject sensor operate
normally?
Yes
Rev. A
3-10
EPL-5700
Chapter3 Troubleshooting
3.4.2 Troubleshooting for Abnormal Operations
3.4.2.1 Abnormal Laser
Table 3-16. Remedy for Abnormal Laser 4
Table 3-13. Remedy for Abnormal Laser 1
Check Item
1.Laser diode is abnormal.
---
Remedy
• Exchange the print head unit.
• Exchange main control board.
3.4.2.2 Abnormal Polygon Motor
Table 3-14. Remedy for Abnormal Laser 2
Check Item
1.Polygon motor is abnormal.
3.4.2.4 Power can not be turned on
---
Remedy
• Exchange the print head unit.
• Exchange main control board.
Check Item
1.Is the power switch On?
2.Is the power code
connected to the printer
body?
3.Is the power code
connected to the plug?
4.Is the interlock switch On?
5.Does the interlock switch
operate normally?
6.Is the fuse F1 in the power
unit disconnected?
No
No
No
No
No
No
Yes
3.4.2.3 Abnormal Fusing
Remedy
Turn the power switch On.
Connect the power code well.
Connect the power code to
the plug.
Adjust the position of the
interlock switch.
Exchange the interlock switch.
• Exchange the power unit.
• Exchange the main control
unit.
Exchange the fuse F1.
Table 3-15. Remedy for Abnormal Laser 3
Check Item
1.Is the heater light turned on
when the power is turned on?
Yes
•
•
2.Is there continuity between
Pin1 and Pin3 of the
Connector CN2 on the fusing
unit.
No
Yes
Rev. A
•
•
•
•
Remedy
Exchange thermister or fusing
unit.
Exchange the main control
board.
Exchange the power unit.
Exchange the fusing unit.
Exchange he heater light.
Exchange the thermostat.
• Exchange the main control
board.
• Exchange the power unit.
3-11
EPL-5700
Chapter3 Troubleshooting
Table 3-18. Print Quality Problems
3.4.3 Troubleshooting Print Quality Problems
When the print quality problems occur, exchange the toner cartridge and
drum cartridge first, then, find out that its cause comes from each cartridge
or from the printer.
Symptom
All black.
Possible cause
Abnormal laser
emission.
Solution
• Exchange the Print
head.
• Exchange the main
control board.
Abnormal charging.
• Exchange the high
voltage board.
• Exchange the main
control board.
Exchange the paper.
• Exchange the transfer
roller.*
• Exchange the high
voltage board.
• Exchange the main
control board.
Table 3-17. Print Quality Problems
Symptom
All white.
Possible cause
No toner cartridge.
No toner in the toner
cartridge.
No drum cartridge.
Solution
Install the toner cartridge.
Exchange the toner
cartridge.
Install the drum cartridge.
Figure 3-3. All
black.
All white.
Figure 3-2. All
white. No
printing.
Defective OPC drum
Exchange OPC drum.
Abnormal laser
emission.
• Exchange the print
head.
• Exchange the main
control board.
• Exchange the transfer
roller.*
• Exchange the high
voltage board.
• Exchange the main
control board.
Improper transfer.
Rev. A
The paper is wet.
Improper transfer.
Figure 3-4. All
white. No
printing.
Note*) Since the life span of the fusing unit and the transfer roller are same,
if you need to exchange either one of them, make sure to exchange both of
them.
3-12
EPL-5700
Chapter3 Troubleshooting
Table 3-20. Print Quality Problems
Table 3-19. Print Quality Problems
Symptom
Back of the paper is dirty.
Possible Cause
Fusing roller is dirty.
Transfer roller is
dirty.
Solution
*Exchange the fusing
roller or fusing unit.
(Refer to Note*
below)
*Exchange the
transfer roller.
(Refer to Note*
below)
Symptom
Foggy background.
Possible Cause
Defective developing
bias.
End of life of OPC
drum
Solution
Exchange the high
voltage board.
Exchange drum
cartridge.
There is scar or
damage on the OPC
drum.
Exchange the OPC
drum.
Abnormal print head.
Exchange the print
head.
Defective fusing roller.
(Abnormal 200M Ω
resistance)
Exchange the
fusing roller.*
Defective transfer
roller.
Defective OPC drum,
or end of life.
Exchange the
transfer roller.*
Exchange the drum
cartridge.
Figure 3-7. Foggy
background.
Figure 3-5. Dirty spot on
the back.
Low image density.
Paper path is dirty.
Clean the paper path.
No toner in the toner
cartridge.
End of life of OPC
drum.
Exchange the toner
cartridge.
Exchange the drum
cartridge.
White line, Black line
Figure 3-8. White or
black line.
Offset image
Figure 3-6. Low image
density.
Defective developing Exchange the high
bias.
voltage board.
Note*) Since the life span of the fusing unit and the transfer roller are same,
if you need to exchange either one of them, make sure to exchange both of
them.
Figure 3-9. Offset.
Rev. A
3-13
EPL-5700
Chapter3 Troubleshooting
3.4.4 Horizontal Lines
If the phenomenon shown below that black lines appear with certain spaces
is caused by drum or rollers, defective parts can be determined by
measuring its space between lines, as it is shown in Table 3-21.
Space
Space
Figure 3-10. Horizontal Lines with Spaces
Table 3-21. Finding defective parts
Parts Name
Toner cartridge
Sleeve
Drum cartridge
OPC drum
Transfer roller
Roller
Fusing unit
Heat roller
Back-up roller
Rev. A
Diameter of each roller/Space
φ15.8mm/49.6mm
φ30mm/94mm
φ16mm/50.2mm
φ20mm/62.8mm
φ21.6mm/67.8mm
3-14
&+$37(5
DISASSEMBLY AND ASSEMBLY
EPL-5700
Chapter4 Disassembly and Assembly
4.1 OVERVIEW
WARNING • If you can not turn off the power because your
service requires power, take off rings and
watches, and wear laser protective goggles.
When you using the protective goggles, use the
one which meets following specifications.
Maximum. Power:
5mW
Output wave-length:
780-810nm
This Chapter shows procedure for disassembly and assembly.
4.1.1 Precaution for Disassembly and Assembly
Read following caution and warning carefully before starting disassembly
and assembly.
WARNING
Rev. A
„
Make sure to plug off the power cable before
starting.
„ Do not touch the fusing unit right after turning
the printer off, since the unit remains hot for a
while after the printer stops printing.
„ If it is necessary to plug in the power cord and
operate the printer after removing the cover,
keep your hands and clothing well away from
operating or rotating parts, such as rollers, fan
motors, etc.
„ Never touch electric terminals or high-voltage
components such as the charger and the high
voltage unit.
„ If it is necessary to plug in or off connectors, do
so after making sure that the power is turned
off. Do not plug in or off any kind of connectors
when the printer is on. Also, when plugging in or
off the connector, do so holding the connector
housing. Do not plug in or off the distribution
code. Doing so may cause imperfect contact.
„ Read following warnings when handling the
laser mechanism.
• Make sure to plug off the power cable when
handling the print head unit and laser-related
parts around OPC drum.
• It is dangerous to insert the tools which have
high possible reflection rate, into the laser path.
Especially handle those tools carefully at the
users’ places.
CAUTION
„
In order to guarantee electric continuity, install
earth line and earth plate correctly. Also, after
removing the out-teethed washers, make sure to
re-install them. Do not replace them with other
kind of screws or washers.
„ Do not disassemble the toner cartridge and OPC
drum unit.
„ Do not disassemble the print head unit (optics
unit).
„ To prevent damage to ICs from static electricity,
do not touch the ICs on the circuit board or the
terminals of peripheral electrical components
with you bare hands. (If necessary, use the earth
band)
„ Use only the recommended tools to ensure safe
and efficient maintenance work.
„ When transporting the printer, pack it using the
original packing material.
„ Handling the OPC drum:
• OPC drum is very sensitive to light and it takes
some time to recover from light exposure.
Therefore, do not open the protection cover and
expose the OPC drum to light for long time.
• Do not let finger prints, grease and chemicals to
attach on the OPC drum surface.
• Do not damage the OPC drum surface.
Other precautions such as CHECKPOINT or ADJUSTMENT are mentioned
at each procedure.
4-1
EPL-5700
Chapter4 Disassembly and Assembly
4.1.2 Recommended Tools
4.1.4 Work Completion Check
Use the tools listed in Table below for disassembling and assembling the
printer.
If any service is made to the printer, use the check list shown below, to
confirm that all works are completed properly and the printer is ready to
return to the user.
Table 4-1. Recommended Tools
Name
+ Screw driver #1
+ Screw driver #2
Screw driver
Tweezers
Round-nose pliers
Availability
O
O
O
O
O
Table 4-3. Check Sheet
Code
B743800100
B743800500
B743000100
B641000100
B740400100
Category
Operation
Parts
Control Panel
Heater lamp
Status sheet
printing
Data printing
4.1.3 Specification for Screws
Abbreviations are used for small parts such as screws and washers. Table
below shows these abbreviations.
Adjustment
Table 4-2. Specification for Screws
Abbreviation
CBS
CP(O)
CBB
CS
CSB
Appearance
Name
+ Bind S tight screw
Cross-recessed Pan head
with spring washer and
plain washer.
+ Bind B tight screw
ROM
version
Cleaning
+ Cup screw
---
+ Cup B tight screw
Packing
Rev. A
Printing
position
adjustment
Interlock
switch
positioning
adjustment
---
---
Check Points
Are the indication of LED, LCD
and their operations normal?
Does it operate normal?
Does the printer print
normally?
Can data be printed normally
at the all operation
modes(ESC/Page, ESC/P and
ESC/PS)?
Does printing position meet
the specification?
Status
‡ OK
‡ NG
‡ OK
‡ NG
‡ OK
‡ NG
‡ OK
‡ NG
Does the interlock switch
work?
‡ OK
‡ NG
‡ OK
‡ NG
Is it newest version?
Version:
• No obstacles on the paper
path?
• Is the surface of paper feed
clean?
• No obstacles on the
surface of the fusing roller?
• Is the exterior case clean?
• Is everything in the
package?
• Is packing condition OK?
‡ OK
‡ NG
‡ OK
‡ NG
4-2
EPL-5700
Chapter4 Disassembly and Assembly
4.2 DISASSEMBLY PROCEDURE
Start
This section explains disassembly procedure for major mechanism and unit,
which composes this printer. Refer to the flow chart. The assembly
procedures are not described, except for special notes where necessary,
because assembly can be accomplished by performing disassembly in
reverse order. Refer to the exploded diagram in the end of this book when
you need to disassemble the parts, which are not mentioned.
Right Cover Removal
Control Panel Removal
Paper Feed Roller Removal
Paper Empty Sensor(PE1)
Removal
ROM Exchange
Front Cover Removal
Left Cover Removal
Interlock Switch Removal
Top Cover Removal
Print Head Unit Removal
Main Control Board Removal
Paper Feed Roller Unit
Removal
Paper Feed Solenoid Removal
Rear Cover Removal
Fusing Unit Removal
Disassembling the
Fusing Unit
Power Board Removal
Transfer Roller
Exchange
High Voltage
Board Removal
Paper Feed
Sensor(PS1) Removal
Main Motor Removal
Driven Unit Removal
Thermister, Thermostat Removal
Heater Lamp Removal
Paper Eject Sensor
(PS3) Removal
Figure 4-1. Flow Chart of Disassembly
Rev. A
4-3
EPL-5700
Chapter4 Disassembly and Assembly
4.2.1 Preparation Before Disassembly
Before disassembling the printer, it is necessary to perform following
preparation.
Drum Cartridge
1. Push the release button located left side of the top cover, and open the
top cover.
2. Take the toner cartridge out of the printer.
3. Take the drum cartridge out of the printer.
4. Remove the paper feed tray.
5. If the optional face-up tray is attached, remove it.
Toner Cartridge
Top Cover
Release Button
Paper Feed Tray
Figure 4-2. Preparation Before Disassembly
Rev. A
4-4
EPL-5700
Chapter4 Disassembly and Assembly
9CHECK POINT
4.2.2 Right Cover Removal
1. Lift up the tab part of the cover a little bit, which is fixing the right cover to
the hook of the shield cover, and release the fixing.
2. Pushing the right cover toward back a little bit, remove the cover to the
right side.
Hook of Shield Cover
When assembling the right cover, attach it so that
two hooks of the cover can match with the
corresponding holes on the printer side(shield
cover). Refer to figure4-4.
Corresponding Holes
of the Shield Cover
Hooks of Right Cover
Right Cover
Tab
Figure 4-3. Right Cover Removal
Figure 4-4. Installing the Right Cover
Rev. A
4-5
EPL-5700
Chapter4 Disassembly and Assembly
4.2.3 Paper Feed Roller Removal
4.2.4 Paper Empty Sensor Removal(PE1)
1. Open the paper feed roller cover.
2. Remove one CP(O) screw(3x8) securing the paper feed roller to the
shaft.
3. Remove the paper feed roller.
1. Release the hook connecting the paper feed roller cover and the printer,
opening the paper feed roller cover, and remove it, sliding it to the left
side.
2. Release the hook securing the paper empty sensor to the mechanism
frame of the printer, and remove it upward.
3. Remove the sensor harness from the paper empty sensor.
Paper Feed Roller Cover
CP(O) (3x8)
Print Head
9CHECK POINT
When installing the paper feed roller cover, install
the spring as it is shown in figure4-6.
Paper Empty Sensor
Spring
Hook of the Paper Feed
Roller Cover
Paper Feed Roller
Figure 4-5. Paper Feed Roller Removal
Paper Feed Roller Cover
Figure 4-6. Paper Empty Sensor Removal
9CHECK POINT
Rev. A
When installing the paper feed roller, tighten the
screw after checking the pin on the roller back
side is in the hole of the shaft.
4-6
EPL-5700
Chapter4 Disassembly and Assembly
4.2.5 ROM(C215PROG-B) Exchange
1. Remove the right cover.(Refer to section .4.2.2)
2. Loosen two CBB screws(3x6) securing ROM cover to the shield cover of
the main control board, and remove the cover.
ROM Board
ROM Cover
CBB(3x6)
Lever
Figure 4-8. ROM Board Removal
9CHECK POINT
Figure 4-7. ROM Cover Removal
If ROM is Flash-ROM(C215PROG), up-date ROM
program by power on operation on the control
panel. (See Chapter 1)
3. Push the lever of ROM connector securing ROM board, and remove the
ROM board.
4. Insert the new version’s ROM board to the connector.
Rev. A
4-7
EPL-5700
Chapter4 Disassembly and Assembly
4.2.6 Control Panel Removal
Control Panel
1. Remove the right cover. (Refer to section 4.2.2)
2. Remove two CS screws(3x8) securing the control panel to the shield
cover of the main board.(One screw is on the side of the cover and the
other one is on the top surface)
Control Panel
Harness of the Control Panel
Hooks of the
Control Panel
CS(3x8)
Front Cover
Figure 4-10. Control Panel Removal
Figure 4-9. Fixing Screws for Control Panel
3. Push the control panel back once and release the connection between
the front cover and hook of the control panel. Then, lift up the control
panel a little bit.
4. Remove the harness of the control panel from the connector on the main
board, and remove the control panel.
Rev. A
4-8
EPL-5700
Chapter4 Disassembly and Assembly
Holes for installing
the second paper feed
unit
4.2.7 Front Cover Removal
1. Remove the right cover.(See section. 4.2.2)
2. Remove the control panel. (Refer to section.4.2.6)
3. Remove one CS screw(3x8) securing the front cover to the shield cover
of the main control board.
Upper Edge Hooks at Front Cover
Left Edge Hook
Right Edge Hook
Figure 4-12. Lower Edge Hooks of the Front Cover
Front Cover
CS(3x8)
Figure 4-11. Fixing Screws at the Front Cover
4. Release two lower edge hooks(one is located right bottom side, the other
is located left bottom) securing the front cover to the printer mechanism
by inserting the shaft of the driver from the holes, which are for installing
the optional second paper feed unit, and remove the front cover from the
bottom side.
Rev. A
9CHECK POINT
When installing the front cover to the printer, first,
hand the upper hooks of the front cover on the
mechanism, and install two lower hooks of the
cover to the mechanism.
4-9
EPL-5700
Chapter4 Disassembly and Assembly
4.2.8 Interlock Switch Removal
1.
2.
3.
4.
5.
Remove the right cover.(See section 4.2.2)
Remove the control panel. (See section 4.2.6)
Remove the front cover. (See section 4.2.7)
Remove the harness of the inter lock switch from the switch.
Remove one CS screw(3x5) securing inter lock switch bracket to the
printer.
6. Remove two CP(O) screws securing the inter lock switch to the bracket,
and remove the inter lock switch.
Interlock Switch
Interlock Switch
Bracket
CS(3x6)
CP(O) (2x10)
Interlock Switch
Harness
Figure 4-13. Interlock Switch Removal
$'-8670(17
Rev. A
In case of removing the inter lock switch, make
sure to perform interlock switch positioning
adjustment when assembling. (Refer to Chapter5)
4-10
EPL-5700
Chapter4 Disassembly and Assembly
4.2.9 Main Control Board Removal
1.
2.
3.
4.
Remove the right cover.(See section 4.2.2)
Remove the control panel.(See section 4.2.6)
Remove the front cover. (See section 4.2.7)
Remove ten CBS screws(3x6) securing the shield cover of the main
control board to the printer, and remove the shield cover.
(In the figure, CBS screws are marked with ∇)
Main Control Board
Serial I/F
Fixing Screw
Parallel I/F
Fixing Screw
Parallel I/F
Fixing Screw
Figure 4-15. Fixing Screws on the Main Control Board
Shield Cover
Figure 4-14. Shield Cover Removal
5. Remove harnesses which are connected to the connector on the main
control board.
6. Remove ten CS screws(3x6) securing the main control board to the
printer.
7. Remove one CP fixing screw for serial interface (3x6) and two CP fixing
screws(3x6) for parallel interface, and remove the board.
Rev. A
4-11
EPL-5700
Chapter4 Disassembly and Assembly
4.2.10 Left Cover Removal
1.
2.
3.
4.
5.
6.
Remove the right cover. (See section 4.2.2)
Remove paper feed roller cover. (See section 4.2.4)
Remove the control panel.(See section 4.2.6)
Remove the front cover. (See section 4.2.7)
Remove two CS screws(3x8) securing the left cover to the printer.
Lift up the left cover a little bit, and remove it to left side.
9CHECK POINT
When installing the left cover, install it so that 2
hooks of the left cover are inserted to the
corresponding holes on the printer side.
CS(3X8)
Left Cover
Figure 4-16. Left Cover Removal
Rev. A
4-12
EPL-5700
Chapter4 Disassembly and Assembly
4.2.11 Print Head Unit Removal
1.
2.
3.
4.
5.
6.
7.
Remove the right cover.(See section 4.2.2)
Remove the paper empty sensor.(See section 4.2.4)
Remove the control panel. (See section 4.2.6)
Remove the front cover.(See section 4.2.7)
Remove the left cover. (See section 4.2.10)
Remove the shield cover of the main control board. (See section 4.2.9)
Remove the harness of the print head unit from CN205 and CN209 on
the board.
8. Remove one CSB screw(3x8) and four CS screws(3x6) securing the print
head unit to the printer.
9. Remove the harness from two clamps, which are securing the harness to
the printer, and remove the print head unit.
9CHECK POINT
If you need to remove the fixing screw located at
the bottom of the print head unit(two CS screws),
insert the driver shaft from the holes located both
right and left sides.
Print Head
CS(3x6)
Hole to insert
driver shaft
CSB(3x8)
CS(3x6)
Hole to insert
driver shaft
Figure 4-17. Print Head Unit Removal
Rev. A
4-13
EPL-5700
Chapter4 Disassembly and Assembly
4.2.12 Paper Feed Roller Unit Removal
1.
2.
3.
4.
5.
6.
Remove the right cover. (See section 4.2.2)
Remove the paper empty sensor.(See section 4.2.4)
Remove the control panel. (See section 4.2.6)
Remove the front cover.(See section 4.2.7)
Remove the left cover. (See section 4.2.10)
Remove two CS screws(3x6) securing the manual feed guide to the
frame of the printer, and remove the manual feed guide.
Paper Feed
Guide Holder at
left side
7. Remove one CSB screws(3x8) securing the left paper feed guide holder
to the left frame of the printer.
8. Remove one CSB screw(3x8) securing the paper feed guide holder and
paper feed guide.
9. Release the connection between the paper guide and holder, pushing
down the left paper guide holder, and remove the paper guide.
10.Locate the printer’s back side bottom so that printer’s bottom side comes
side. Remove two CSB screws (3x8), one CS screw (3x6) and one fixing
screw , securing the paper feed unit to the frame of the printer.
CS(3x6)
Paper Feed Guide
CSB(3x8)
CSB(3x8)
Left Frame
Fixing Screw
Paper Feed Unit
Harness of Paper Feed Solenoid
CSB(3x8)
B
Left Paper Feed CS(3x6)
Guide Holder
Left Frame
CSB(3x8)
Paper Feed Unit
A
How to remove the paper feed
unit
Figure 4-19. Paper Feed Unit Removal
Paper Feed Guide
Manual Feed Guide
11.Pull the right side of the paper feed unit toward yourself(1), and remove
it, moving the whole unit to right side.(2) (See “A” in figure4-19)
CS(3x6)
Figure 4-18. Paper Feed Guide Removal
Rev. A
4-14
EPL-5700
Chapter4 Disassembly and Assembly
12.Remove the harness of paper feed solenoid, which is connected to the
paper feed unit, from the connector at the paper guide.
9CHECK POINT
When installing the fixing screw, make sure that
the paper feed unit is in the frame.(See “B” in
figure4-19)
4.2.13 Paper Feed Solenoid Removal
1.
2.
3.
4.
5.
6.
7.
Remove the right cover. (See section 4.2.2)
Remove the paper empty sensor.(See section 4.2.4)
Remove the control panel. (See section 4.2.6)
Remove the front cover.(See section 4.2.7)
Remove the left cover. (See section 4.2.10)
Remove paper feed unit. (See section 4.2.12)
Remove one CSB screw(3x8) securing the paper feed solenoid to the
paper feed unit, and remove the paper feed solenoid.
Paper Feed Solenoid
Paper Feed Unit
CSB(3x8)
Figure 4-20. Paper Feed Solenoid Removal
Rev. A
4-15
EPL-5700
Chapter4 Disassembly and Assembly
4.2.14 Top Cover Removal
1.
2.
3.
4.
5.
6.
$'-8670(17
Remove the right cover. (See section 4.2.2)
Remove the paper empty sensor.(See section 4.2.4)
Remove the control panel. (See section 4.2.6)
Remove the front cover.(See section 4.2.7)
Remove the left cover.(See section 4.2.10)
Push both left and right hinges of the top cover toward arrow directions in
figure 4-21 and remove the top cover.
Top Cover
If top cover is exchanged, be sure to perform
Interlock Positioning Adjustment. (Refer to
Chapter5).
Hinge
Figure 4-21. Top Cover Removal
Rev. A
4-16
EPL-5700
Chapter4 Disassembly and Assembly
4.2.15 Rear Cover Removal
1.
2.
3.
4.
5.
6.
7.
Remove the right cover. (See section 4.2.2)
Remove the paper empty sensor.(See section 4.2.4)
Remove the control panel. (See section 4.2.6)
Remove the front cover.(See section 4.2.7)
Remove the left cover.(See section 4.2.10)
Remove the top cover. (See section 4.2.14)
Remove two CBB screws(3x8), three CS screws(3x6) and one CP screw
with out-teethed washer securing the rear cover to the printer.
8. Lift up the rear cover once and remove it.
Rear Cover
CS(3x5)
CBB(3x8)
CS(3x5)
CS(3x5)
Out teeth washer
CP(3x6)
Figure 4-22. Rear Cover Removal
Rev. A
4-17
EPL-5700
Chapter4 Disassembly and Assembly
4.2.16 Fusing Unit Removal
It is necessary to exchange the fusing unit every 50000 sheets.
Fusig Unit
CS(3x8)
Paper Eject Sensor
Harness
Thermister Harness
CS(3x8)
Spacer
CAUTION The life span of the transfer roller and fusing unit
are same. So, if you need to exchange the fusing
roller because of worn-out or etc., make sure to
exchange the transfer roller too. (See section
4.2.18)
1.
2.
3.
4.
5.
6.
7.
8.
Remove the right cover. (See section 4.2.2)
Remove the paper empty sensor.(See section 4.2.4)
Remove the control panel. (See section 4.2.6)
Remove the front cover.(See section 4.2.7)
Remove the left cover.(See section 4.2.10)
Remove the top cover. (See section 4.2.14)
Remove the rear cover. (See section 4.2.15)
Remove harness of the paper eject sensor at the fusing unit from the
connector part of the paper eject sensor.
9. Remove the harness of the thermister from the relay connector.
10.Remove the harness of the heater lamp from the clamp of the paper
guide, and also remove it from the connector on the power board.
11.Remove two CS screws(3x8) and one CSB screw (3x8)securing the
fusing unit to the printer, and also remove the spacer.
12.Remove the fusing unit upward.
Rev. A
Heater Lamp Harness
Power Board
CSB(3x8)
Figure 4-23. Fusing Unit Removal
4-18
EPL-5700
Chapter4 Disassembly and Assembly
4.2.17 Disassembling the Fusing Unit
If you need to disassemble the fusing unit because of image quality
problems and defective parts, follow the procedure below.
4. Remove the backup roller.
5. Refer to Figure4-25. 1)Move the front fusing guide board to the left side
once, 2)remove the right side of the guide board, 3) remove the left side
of the guide board.
4.2.17.1 Heater Lamp Removal
1. Remove the fusing unit. (See section 4.2.16)
2. Remove two CSB screws(3x8) securing the fusing unit.
3. Release the right and left hooks connecting the fusing unit, and separate
the fusing unit.
Back up Roller
CSB(3x8)
CSB(3x8)
(1)
(3)
(2)
Front Fusing Guide
Figure 4-25. Backup Roller and Front Fusing Guide Removal
Figure 4-24. Separation of the Fusing Unit
Rev. A
4-19
EPL-5700
Chapter4 Disassembly and Assembly
6. Remove one CP(O) screw(3x6) and one CSB screw(3x8) securing the
terminal board to the fusing unit.
7. Remove the heater lamp.
Heat Roller
Terminal Board
CP(O)(3x6)
CSB(3x8)
Heater Lamp
Voltage Indication
Figure 4-26. Heater Lamp Removal
9CHECK POINT „
„
Rev. A
Do not touch the glass surface of the heater
lamp with your bare-hands.
When installing the heater lamp, the side that
indicates lamp voltage should come to the
terminal board side.
4-20
EPL-5700
Chapter4 Disassembly and Assembly
4.2.17.2 Thermister, Thermostat Removal
1.
2.
3.
4.
Remove the fusing unit. (See Section 4.2.16)
Remove the heater lamp.(See section 4.2.17.1)
Remove the driven gear from the heat roller.
1)Move the heat roller to the right side once, 2)Move it to (2) direction
shown in the figure, 3) Pull the roller out toward (3) direction.
9CHECK POINT
5. Remove four fusing unit separation claws.
6. Remove one CSB(3x8) screw securing the thermister to the fusing unit,
and remove the thermister from the fusing unit.
7. Remove two CP(O) screws(3x8) securing the thermostat to the fusing
unit, and remove the thermostat.
CSB(3x8)
CP(O)(3x8)
Thermister
In order to avoid damaging the heat roller surface
by the fusing separation claw, perform
disassembly and assembly of the roller by lifting it
up a little bit.
Thermostat
Separation Claw
Heat Roller
(2)
(3)
(1)
Driven Gear
Figure 4-27. Heat Roller Removal
Rev. A
Figure 4-28. Thermister and Thermostat Removal
4-21
EPL-5700
Chapter4 Disassembly and Assembly
9CHECK POINT „
„
4.2.17.3 Paper Eject Sensor(PS3)
Face down the sharp side of the separation
claws as it is shown in Figure4-28, when
removing or installing them.
Lay the harness of the thermister, as it is shown
figure4-29.
1. Remove the fusing unit. (See section 4.2.16)
2. Release the connection between the sensor and lever, moving the lever
of the paper eject sensor.
3. Release the hook of sensor securing the sensor to the fusing unit, and
remove the sensor.
Back side of the fusing unit
Harness of the Thermister
Figure 4-29. Locating Harness of the Thermister
Sensor Lever
Sensor Hook
Paper Eject Sensor
Figure 4-30. Paper Eject Removal
Rev. A
4-22
EPL-5700
Chapter4 Disassembly and Assembly
4.2.18 Transfer Roller Exchange
It is necessary to exchange the transfer roller, approximately every 50000
sheets.
CAUTION
„
„
„
Since the life span of the transfer roller and
fusing unit are same, if you need to exchange
the transfer roller because of worn-out or etc.,
make sure to exchange the fusing unit.
Since dents and dirt on the surface of the roller
transfer give bad influence on the printing
quality, do not let chemicals or toner attach on
the roller surface.
When you handle the transfer roller, handle it,
holding the shaft of the roller or shaft support.
3. Push down the lever of right and left transfer roller supports(white) toward
front side, and remove the transfer roller from the transfer roller holder.
4. Remove left and right shaft support and gear from the removed transfer
roller, and install them to the new transfer roller.
Gear
Shaft Support
Transfer Roller
1. Remove fusing unit.(See section 4.2.16)
2. Remove two CBB screws(3x8) securing the front cover transferring to the
printer. Remove the front cover transferring.
Transfer Roller
Shaft Support
Shaft Support
Transfer Roller Holder
Transfer Roller Holder
CBB
Shaft Support
Front Cover Transferring
CBB
Figure 4-31. Transfer Roller Removal
Rev. A
Shaft Support
Figure 4-32. Installing the Transfer Roller
9CHECK POINT
Remove the fusing unit once so that the transfer
roller can be removed easily.
4-23
EPL-5700
Chapter4 Disassembly and Assembly
4.2.19 Power Board Removal
1.
2.
3.
4.
5.
6.
7.
8.
9.
Remove the right cover. (See section 4.2.2)
Remove the paper empty sensor. (See section 4.2.4)
Remove the control panel. (See section 4.2.6)
Remove the front cover.(See section 4.2.7)
Remove the shield cover of the main control board. (See section 4.2.9)
Remove the left cover.(See section 4.2.10)
Remove the top cover. (See section 4.2.14)
Remove the rear cover. (See section 4.2.15)
Remove the harness of the heater lamp from connector CN2 on the
power board. (Refer to section 4.2.16)
10.Remove the harness of the inter lock switch from connector CN3 on the
power board.
11.Remove the harness of the main control board from connector CN207 on
the main board.
12.Remove two CP(O) screws(3x6) and two CS screws(3x6) securing the
power board unit to the right and left frames of the printer, and remove
the power board unit.
Interlock
Switch Harness
Main Control Board
CS(3x6)
Power Unit
CP(O)(3x6)
Figure 4-33. Power Unit Removal
Rev. A
4-24
EPL-5700
Chapter4 Disassembly and Assembly
13.Remove 2 CS screws(3x8), one CP(O) screw(3x6), one CP screw(4x6)
and one out-teethed washer securing the power board to the power
installation board, and remove the power board.
Power Board
CS(3x8)
CP(O)(3x6)
CS(3x8)
CP(4x6)
Out-teethed
washwer
Power Installation Board
Figure 4-34. Power Board Removal
Rev. A
4-25
EPL-5700
Chapter4 Disassembly and Assembly
4.2.20 High Voltage Board Removal
Transfer Unit
1. Remove the right cover. (See section .4. 2.2)
2. Remove the paper empty sensor. (See section 4.2.4)
3. Remove the control panel. (See section 4.2.6)
4. Remove the front cover. (See section 4.2.7)
5. Remove the shield cover of the main control board. (See section 4.2.9)
6. Remove the left cover.(See section 4.2.10)
7. Remove the top cover. (See section 4.2.14)
8. Remove the rear cover. (See section 4.2.15)
9. Remove the power unit. (See section 4.2.19)
10.Remove the harness coming out of the main control board from the
connector of the high voltage board.
11.Remove two CBB screws(3x8) securing the high voltage board to the
transfer unit.
12.Remove the high voltage board and earth plate.
9CHECK POINT
Earth Plate
High Voltage Board
High Voltage Board
When installing the high voltage board, install the
earth plate between high voltage board and
transfer unit.
CBB(3x8)
Figure 4-35. High Voltage Board Removal
Rev. A
4-26
EPL-5700
Chapter4 Disassembly and Assembly
4.2.21 Paper Sensor(PS1) Removal
4.2.22 Main Motor Removal
1. Remove the right cover.(See section 4.2.2)
2. Remove the paper empty sensor. (See section 4.2.4)
3. Remove the control panel. (See section 4.2.6)
4. Remove the front cover. (See section 4.2.7)
5. Remove the shield cover of the main control board. (See section 4.2.9)
6. Remove the left cover.(See section 4.2.10)
7. Remove the top cover. (See section 4.2.14)
8. Remove the rear cover. (See section 4.2.15)
9. Remove the power unit. (See section 4.2.19)
10.Release the hook of sensor securing the paper feed sensor to the paper
guide, and remove the sensor.
11.Remove the harness of the sensor from the connector of the paper feed
sensor.
1. Remove the right cover. (See section .4. 2.2)
2. Remove the paper empty sensor. (See section 4.2.4)
3. Remove the control panel. (See section 4.2.6)
4. Remove the front cover. (See section 4.2.7)
5. Remove the shield cover of the main control board. (See section 4.2.9)
6. Remove the left cover.(See section 4.2.10)
7. Remove the top cover. (See section 4.2.14)
8. Remove the rear cover. (See section 4.2.15)
9. Remove the power unit. (See section 4.2.19)
10.Remove the main motor harness from connector CN206 on the main
control board.
11.Remove the main motor harness from the clamp part of the paper guide.
12.Remove two CP(O) screws securing the main motor to the left frame.
13.Remove the main motor from the printer inside.
Hook
CP(O)(3x8)
CP(O)(3x8)
Paper Feed
Sensor
Main Motor
Paper Feed Sensor
Sensor Harness
Figure 4-36. Paper Feed Sensor Removal
Rev. A
Motor Harness
Clamp Parts
(4 positions)
Left Frame
Figure 4-37. Main Motor Removal
4-27
EPL-5700
Chapter4 Disassembly and Assembly
4.2.23 Driving Unit Removal
#3"X
1. Remove the right cover. (See section. 4. 2.2)
2. Remove the paper empty sensor. (See section 4.2.4)
3. Remove the control panel. (See section 4.2.6)
4. Remove the front cover. (See section 4.2.7)
5. Remove the shield cover of the main control board. (See section 4.2.9)
6. Remove the left cover.(See section 4.2.10)
7. Remove the top cover. (See section 4.2.14)
8. Remove the rear cover. (See section 4.2.15)
9. Remove the fusing unit. (See section 4.2.16)
10.Remove the power unit. (See section 4.2.19)
11.Remove the screw for main motor. (See section 4.2.22)
12.Remove three CS screws(3x6), one paper feed fixing screw, two CSB
screws (3x8) and remove unit, securing the driving unit to the printer.
(Parts marked with∇)
13.Remove seven CSB screws(3x8) securing the driving unit to the left
frame.(Parts marked with ▼)
CS(3x6)
CS(3x6)
CS(3x6)
CSB(3x8)
CSB(3x8)
Fixing Screws
Left Frame
Figure 4-38. Left Frame Removal
Rev. A
4-28
EPL-5700
Chapter4 Disassembly and Assembly
4.3 DISASSEMBLY AND ASSEMBLY FOR
OPTIONAL SECOND PAPER FEED UNIT
4.3.1 Second Paper Feed Roller Exchange
1.
2.
3.
4.
Lift up the tab of the paper feed roller. (1)
Move the paper feed roller to (2) direction.
Remove the paper feed roller toward (3) direction.
Install the new paper feed roller in reverse order.
Paper Feed Roller
(3)
(1)
(2)
Tab of Paper Feed Roller
Figure 4-39. Second Paper Feed Roller Removal
Rev. A
4-29
&+$37(5
ADJUSTMENT
EPL-7500
Chapter5 Adjustment
5.1 ADJUSTMENT
This chapter explains adjustment procedure. Adjustment should be done
after components and parts are exchanged.
5.1.1 Interlock Switch Position Adjustment
If the printer power does not turn on when the top cover is closed even at
the power switch on, perform the position adjustment of interlock switch by
the following procedures.
1. Remove right cover, left cover and front cover.
2. Loosen the screw which is fixing interlock switch, and close the top cover
completely.
3. Move the interlock switch up and down, and tighten the screw at the
position that the switch turns on.
Refer to Chapter4 Disassembly and Assembly.
Rev. A
5-1
&+$37(5
MAINTENANCE
EPL-7500
Chapter6 Maintenance
6.1 MINTENANCE
6.1.2 Service Maintenance
This section gives information necessary for maintaining the printer in its
optimum condition. Periodical user maintenance and service maintenance
are necessary in order to maintain high printing quality.
Maintenance items described in this section are divided into two
subsections: user maintenance and service maintenance.
Since toner cartridge and OPC drum are pre-installed on the printer, other
all consumables belong to user maintenance.
6.1.1 User Maintenance
Table 6-1. Instructions for User Maintenance
Item
Paper Feed Roller
Toner Cartridge
Exchange
Occasion
Abnormal paper path
Procedure
Clean the surface of
paper feed roller with soft
cloth damped with water.
(Do not use alcohol)
Refer to User’s manual.
Following maintenance should be done by qualified repair service men.
Table 6-2. Instructions for Service Maintenance
Parts. Unit
Transfer Roller*
(Approximately
50000 sheets)
Fusing Unit*
(Approximately
50000 sheets)
Paper Feed Roller
Occasion
Abnormal symptom
appear.
Procedure
Clean it or exchange it.
Abnormal symptom
appear.
Clean it or exchange it.
Abnormal symptom Clean it or exchange it.
appear.
Note*) If you exchange the fusing roller, make sure to replace the transfer
roller too, since the life span of transfer roller and fusing unit are
same.
Approximately 3000
sheets (Consecutive
printing*)
Drum Cartridge
Approximately 20000
Refer to User’s manual.
Exchange
sheets (Consecutive
printing*)
Note*) In case of intermittent printing, its occasion is 80% of consecutive
printing.
Rev. A
6-1
&+$37(5
APPENDIX
EPL-5700
Chapter7 Appendix
Table 7-1. Connector List
7.1 CONECTOR PIN ASSIGMENTS
Connector
Function
Pins
Reference
Tables
-----
-----
72
--72
36
8
--26
------
Table7-2∼7-4
--Table7-5∼7-7
Table7-8
Table 7-9
--Table7-10
-----
2
2
11
7
4
5
3
5
2
12
---------------------
4
---
11
----
5
2
3
---------
Figure below shows interconnections with main board.
C215PROG-B
(16 Mbit Mask Rom)/
C215PROG
(8 Mbit Flash ROM)
SIMM
C234 Main-B Board
CN3
CN202
CN5
CN203
Parallel
I/F
CN1
RS-422
CN7
Control
Panel
Heater
Lamp
CN204
High Voltage
Board
CN205
Print Head
CN206
CN2
CN9
CN1
CN207
CN3
Interlock
Switch
2nd
Paper
Feed Unit
Paper Eject
Sensor
CN209
Polygon
Motor
CN210
Paper Feed
Sensor
CN212
Paper Empty
Sensor
CN211
Figure 7-1. Interconnection with Main Board
Rev. A
Main
Motor
CN208
Power Board
CN2
Paper Feed
Solenoid
CN6
C215PROG
(Russia/NLSR)
C239PROG
(Optional PostScript,
US/CA))
Fusing
Thermister
C234 Main Board
CN1
ROM DIMM(not used)
CN2
ROM DIMM(optional
font))
CN3
ROM DIMM
CN4
SCSI(not used)
CN5
RAM SIMM
CN6
Parallel Interface
CN7
RS-422
CN8
RS-232C(not used)
CN9
Control Panel
CN10
Type-B(not used)
CN11
Video Connector(not
used)
CN202
Fusing Thermister
CN203
Paper Feed Solenoid
CN204
High Voltage Board
CN205
Print Head
CN206
Main Motor
CN207
Power Board
CN208
Paper Eject sensor
CN209
Polygon Motor
CN210
Paper Feed sensor
nd
CN211
Optional 2 Paper
Feed Unit
CN212
Paper Empty sensor
High Voltage Board
CN1
Main Control Board
Power Board
CN1
Main Control Board
CN2
Fusing Heater Lamp
CN3
Interlock Switch
7-1
EPL-5700
Chapter7 Appendix
Table 7-2. Connector CN3 Pin
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
Rev. A
Signal Name
GND
D0
D1
D2
D3
D4
D5
D6
D7
Vcc
A20
A0
A1
A2
A3
A4
A5
A6
A10
A12
D8
D9
D10
D11
D12
D13
D14
A7
A11
I/O
--I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
--O
O
O
O
O
O
O
O
O
O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
Description
Ground
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
Power
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
Address bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
Address bus
Address bus
Table 7-3. Connector CN3 Pin(Cont.)
Pin
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
Signal Name
Vcc
A8
A9
A13
RDX
D15
A14
D16
D17
GND
BE0X
BE2X
BE3X
BE1X
CSX
A15
A16
WR0X
WR1X
D18
D19
D20
D21
D22
D23
A17
D24
D25
I/O
--O
O
O
O
I/O
O
I/O
I/O
--O
O
O
O
O
O
O
O
O
I/O
I/O
I/O
I/O
I/O
I/O
O
I/O
I/O
Description
Power
Address bus
Address bus
Address bus
Lead Signal
32 bit data bus
Address Bus
32bit data bus
32bit data bus
Ground
Bite enable signal
Bite enable signal
Bite enable signal
Bite enable signal
Select signal
Address bus
Address bus
Light Signal
Light Signal
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
Address bus
32bit data bus
32bit data bus
7-2
EPL-5700
Chapter7 Appendix
Table 7-4. Connector CN3 Pin(Cont.)
Pin
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
Rev. A
Signal Name
D26
D28
D27
Vcc
D29
D30
D31
A18
A21
A22
A23
IDX
NC
A19
GND
I/O
I/O
I/O
I/O
--I/O
I/O
I/O
O
O
O
O
I
--O
---
Description
32bit data bus
32bit data bus
32bit data bus
Power
32bit data bus
32bit data bus
32bit data bus
Address bus
Address bus
Address bus
Address bus
ROM DIMM in/out signal
Not used
Address bus
Ground
Table 7-5. Connector CN5 Pin
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Signal Name
GND
D0
D16
D1
D17
D2
D18
D3
D19
Vcc
NC
A0
A1
A2
A3
A4
A5
A6
A10
D4
D20
D5
D21
D6
D22
D7
D23
A7
NC
Vcc
A8
I/O
--I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
--O
O
O
O
O
O
O
O
O
O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
----O
Description
Ground
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
Power
Not used
DRAM Address bus
DRAM Address bus
DRAM Address bus
DRAM Address bus
DRAM Address bus
DRAM Address bus
DRAM Address bus
DRAM Address bus
Address bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
DRAM Address bus
Not used
Power
DRAM Address bus
7-3
EPL-5700
Chapter7 Appendix
Table 7-6. Connector CN5 Pin(Cont.)
Pin
32
33
34
35
36
37
38
39
40
Signal Name
A9
RAS3X
RAS2X
MP2
MP0
MP1
MP3
GND
CAS0X
I/O
O
O
O
I/O
O
I/O
I/O
--O
41
CAS2X
O
42
CAS3X
O
43
CAS1X
O
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
RAS0X
RAS1X
NC
WEX
NC
D8
D24
D9
D25
D10
D26
D11
D27
D12
D28
Vcc
D29
D13
O
O
O
O
O
I/O
I/O
I/O
I/O
I/O
I/O
O
I/O
I/O
I/O
--I/O
I/O
Rev. A
Description
DRAM Address bus
Row Address Strobing Signal
Row Address Strobing Signal
Parity Data Bus(not used)
Parity Data Bus(not used)
Parity Data Bus(not used)
Parity Data Bus(not used)
Ground
Column Address Strobing
signal
Column Address Strobing
signal
Column Address Strobing
signal
Column Address Strobing
signal
Row Address Strobing signal
Row Address Strobing signal
Not used
DRAM light enable signal
Not used
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
32bit data bus
Power
32bit data bus
32bit data bus
Table 7-7. Connector CN5 Pin (Cont.)
Pin
62
63
64
65
66
67-70
71
72
Signal Name
D30
D14
D31
D15
NC
PD0-PD3
NC
Vcc
I/O
I/O
I/O
I/O
O
--I
-----
Description
32bit data bus
32bit data bus
32bit data bus
32bit data bus
Not used
Presence detect pin(not used)
Not used
Power
Table 7-8. Connector CN6 Pin
Pin
I/O
10
Signal
Name
/STB
DATA1
--DATA8
/ACK
11
12
13
14
15
16
17
18
19-30, 33
31
BUSY
PE
SELOLT
/AUTO
NC
GND
CG
NC
GND
/INIT
O
O
O
I
----------I
32
34
35
36
/ERR
NC
+5
/SELIN
O
----I
1
2-9
Description
I
I/O
Latch pulse to read print data.
Data bit1∼8
O
Pulse to acknowledge that data is
transferred from the host.
Printer is unable to receive the data.
Paper Jam, or Paper out.
Always HIGH.
Signal to request 1284 Mode.
Not used.
Ground
Chassis Ground
Not used
Ground
BUSY state until it is canceled when
/INT is LOW.
Error occur.
Not used.
+5V
Always LOW.
7-4
EPL-5700
Chapter7 Appendix
Table 7-9. Connector CN7 Pin
Pin
1
2
Signal Name
HSKo
HSKi
I/O
O
I
3
4
5
6
7
TXDGND
RXD+
TXD+
GPi
O
-I
O
O
8
Rev. A
RXD+
I
Description
Serial synchronizing clock
Transmission permission signal
from host.
Serial data output signal
Ground
Serial data input signal
Serial data output signal
Signal to let the host know that
communication is available.
Serial data input signal
Table 7-10 . Connector CN9 Pin
Pin
1
2
3
Signal Name
VCC
VCC
LCDX
I/O
----O
4
A1
O
5
LCDWRX
O
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
DB3
DB2
DB1
DB0
SW5X
SW6X
SW7X
SW8X
LED4X
LED5X
LED6X
GND
LCDCLK
GND
SW3X
SW2X
SW1X
SW0X
LED3X
LED2X
LED1X
O
O
O
O
I
I
I
I
O
O
O
--O
--I
I
I
I
O
O
O
Description
+5V
+5V
LCD Controller enable signal
(not used)
Control/Data select signal of
LCD controller.
LCD controller writing signal
(not used)
Data bus to LCD (not used)
Data bus to LCD (not used)
Data bus to LCD (not used)
Data bus to LCD (not used)
Panel switch(not used)
Panel switch(not used)
Panel switch(not used)
Panel switch(not used)
LED light On signal
LED light On signal
LED light On signal
Ground
LCD Clock signal(not used)
Ground
Panel switch
Panel switch
Panel switch
Panel switch
LED light On signal
LED light On signal
LED light On signal
7-5
EPL-5700
Chapter7 Appendix
7.2 CIRCUIT BOARD COMPONENT LAYOUT
Figure 7-2. C234 Main Control Board Component Layout(Front)
Rev. A
Figure 7-3. C234 Main Control Board Component Layout(Rear)
7-6
EPL-5700
Chapter7 Appendix
7.3 EXPLODED DIAGRAM
Following pages show exploded diagrams of EPL-5700.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Housing
Paper Exit Section
Paper Take-Up Section
Fusing Unit
Drive/Transfer Unit
Frames I
Frames II
Optional 2 nd Lower Paper Feeding Section I
Optional 2 nd Lower Paper Feeding Section II
Rev. A
7-7
1
HOUSING
12
02
15
01
11
04
10
3504
14 3704
03
3504
16
3704
09
08
3705
05
06
07
13
2
PAPER EXIT SECTION
08
3704
01
01
07
02
3704
03
05
06
02
04
3704
05
3704
3
PAPER TAKE-UP SECTION
06
01
05
03
19
07
08
04
0601
9109
1308
09
02
23
10
3704
11
22
24
03
9109
21
20
12
01
13
25
17
SL1
3704
15
16
18
3704
14
3704
4
FUSING UNIT
12
13
11
PS3
08
05
07
09
06
10
H1
03
3704
1305
07
04
15
16
3704
15
15
08
1305
15
17
3923
TH1
18
3504
01
22
TS1
14
02
23
3704
19
20
21
5
DRIVE/TRANSFER UNIT
02
03
39
01
3501
M1
1308
3704
42
04
05
06
09
41
07
08
10
15
37
38
14
22
11
21
13
20
12
23
19
18
36
17
35
HV1
16
1308
3907
24
3907
3907
40
25
28
34
29
PS2
26
27
30
31
32 33
6
FRAMES I
17
3501
4012
18
19
3501
01
02
3501
16
PE1
3501
3504
03
20
8301
04
4012
4011
17
05
4011
05
21
15
22 3504
13
12
14
S2
3501
12
11
2901
3501
07
10
08
06
3501
06
09
06
06
7
FRAMES II
3501
02
3504
03
PU1
1305
3704
01
2514
8302
04
06
14
15
16
05
13
07
07
08
3704
PH
09
3501
12
10
11
3704
3704
3501
8
2ND PAPER TAKE-UP I(OPTION)
3504
3704
10
08
01
09
04
09
3501
3704
11
02
3501
07
15
3704
03
05
PWB-A
14
12
08
3704
06
13
29
12
3504
16
28
17
0509
03
SW21
30
18
19
9112
20
04 3501
3704
21
27
3704
9107
22
9112
3704
9107
23 3501
9107
22 9107
31
22
SL21
25
24
25
26
3704
25
25
9
2ND PAPER TAKE-UP II(OPTION)
01
06
02
03
06
05
04
3704
14
04
08
08
07
3704
14
13
12
11
09
10
3704
01
EPL-5700
Chapter7 Appendix
7.4 CIRCUIT DIAGRAM
Circuit diagram of C234 main board is on the next pages.
1. C234 Main Board 1/2
2. C234 Main Board 2/2
3. C239 PROG Board(Depending on destinations)
Rev. A
7-17
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