SERVICE MANUAL
A4 monochrome Laser Printer
EPSON AcuLaser M2000D
M2000DN
M2010D
M2010DN
SEPG07006
Confidential
Confidential
Notice:
The purpose of this manual is to provide the product knowledge and the technical information required for repair or maintenance of EPSON AcuLaser M2000D/M2000DN/
M2010D/M2010DN.
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, or
otherwise, without the prior written permission of SEIKO EPSON CORPORATION.
This manual contains confidential information and sensitive matters, special care should be taken when handling the manual.
The contents of this manual are subject to change without prior notice as a result of continuing improvements to the product’s performance and functions.
Some of the descriptions or the appearance of some parts in this manual may differ from those on an actual product.
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 © SEIKO EPSON CORPORATION 2008.
Imaging Products CS, PL & Environmental Management
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This manual consists of the following seven chapters:
Various symbols are used throughout this manual either to provide additional
information on a specific topic or to warn of possible danger present during a
procedure or an action. Be sure to read and understand the information with these
symbols.
CHAPTER 1 PRODUCT DESCRIPTIONS
Describes the main features, basic specifications, consumable products,
periodic replacement parts, and controller interface of the product.
CHAPTER 2 OPERATING PRINCIPLES
Describes each mechanism configurations and explains fundamental
operating principle of major components including the control system.
CHAPTER 3 TROUBLESHOOTING
Describes the troubleshooting procedures that can help you diagnose and
resolve problems. The problems are sorted by displayed error codes and
phenomena of abnormal image output.
CHAPTER 4 DISASSEMBLY/ASSEMBLY
Describes the step-by-step procedures for disassembling and assembling
of the product.
CHAPTER 5 ADJUSTMENT
Describes the settings and the adjustments to be performed during the
maintenance work.
CHAPTER 6 MAINTENANCE
Describes preventive maintenance procedures.
CHAPTER 7 APPENDIX
Provides the additional information such as panel operations, connector
pin layouts, parts list, and exploded diagrams for reference.
Manual Configuration
Symbols Used in this Manual
Indicates an operating or maintenance procedure, practice or
condition that, if not strictly observed, would result in injury or loss
of life.
Indicates an operating or maintenance procedure, practice or
condition that, if not strictly observed, could result in injury or loss
of life.
Indicates an operating or maintenance procedure, practice or
condition that, if not strictly observed, could result in personal
injury or may cause damage to, or destruction of equipment.
Indicates a prohibited action during maintenance work.
Indicates a mandatory action during maintenance work.
C H E C K
P O I N T
Indicates an operating or maintenance procedure, practice or
condition that is necessary to accomplish a task efficiently.
Provides additional information that is related to a specific
subject, or comment on the results achieved through a previous
action.
Indicates a product reassembly procedure, practice or condition
that must be executed in accordance with the specified standards to
maintain the product’s quality.
A D J U S T M E N T
R E Q U I R E D
Indicates an operating or maintenance procedure, practice or
condition that must be executed in accordance with the specified
standards to maintain the product’s quality.
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Safety-related Symbols
Safety Equipment
List of Safety Equipment
Location of Safety Equipment
Indicates an operating or maintenance procedure, practice or
condition that, if not strictly observed, would result in injury or loss
of life.
Indicates an operating or maintenance procedure, practice or
condition that, if not strictly observed, could result in injury or loss
of life.
Indicates an operating or maintenance procedure, practice or
condition that, if not strictly observed, could result in personal
injury or may cause damage to, or destruction of equipment.
Never deactivate the safety equipment installed on the product for
any reason whatsoever. (e.g. Making a connection circuit bypasses
the safety equipment.)
Name Function/Purpose
Interlock switch Shuts off 24 V DC power line when the Top cover is opened.
Safety
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Safety System Wiring Schematic
+5V1
SLEEP
+24V1
+24V2
FAN
+3.3V1
ZCROSS
HEATN
THERM
LVP S
Left
cooling
fan motor
Fuser thermistor
Fuser thermal cutout
Fuser unit
Switching
regulator
circuit
Zero cross
signal circuit
A
C input
Interlock
switch
Power switch
Fuser heater
lamp control
circuit
Fuser
heater lamp
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Laser Beam
Laser Opening Location
Handling Precautions
Disassembling and adjustment procedures not specified herein
may result in hazardous radiation exposure.
Do not disassemble or attempt to adjust the Laser Scanner unit
for any reason whatsoever. When the Laser Scanner unit
malfunctions, replace it with a new one.
Laser OpeningsLaser Scanner Unit
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Prohibited Matters
Never deactivate the safety equipment installed on the product for any reason
whatsoever.
Never modify the safety equipment or replace it with part not approved by
EPSON. Doing so may cause the safety functions to stop working properly, and
may result in fire or injury.
Never modify the product. If you are instructed to do so, however, fully
understand the instruction and perform the modification.
To prevent an electric shock, burn, injury, etc., always turn the
printer off and unplug the power cord before starting maintenance
work. When the power supply cable must be connected to measure
voltage or for any other task, strictly follow the instructions and use
extreme caution in working on electronic components.
Pay particular attention to the high-voltage part indicated with the
symbol on the left.
Do not touch the high temperature parts indicated with the symbol
on the left. Those parts are extremely hot immediately after use. If
you need to replace those parts, leave the printer until it cools.
Use the specified service parts for repair and maintenance.
When using compressed air products; such as air duster, for
cleaning during repair and maintenance, the use of such products
containing flammable gas is prohibited.
Connect the printer to an electrical outlet that matches the printer’s
rated voltage and power requirements.
Do not connect any other devices to the electrical outlet supplying
the printer. Doing so can cause overloading of the electrical circuit
and may cause a fire.
Do not use extension cords or power adapters to plug multiple
devices into the same outlet. Power plug and electrical outlet should
be free from dust or foreign objects.
The printer should be properly grounded to prevent electric shock.
The grounding terminal should be one of the followings:
a. One of the electrical outlet
b. One that is grounded by a D-type grounding construction.
(The former third-type grounding construction; grounding
resistance under 100 Ω).
Power cord should not be deformed or damaged. If the cord is
damaged, replace it with a new one dedicated for the product.
After replacing the Fuser Unit or any other parts to which AC
voltage is applied, be sure to check the part is properly installed and
the connecting cables are not caught between metal parts.
Otherwise a fire or an electric shock may occur.
Fuse on the Power Supply Unit must not be replaced under any
circumstances.
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Before performing repair and maintenance work, read and
understand the documents of the product (e.g. service manual).
Be sure to follow the specified steps and use the prescribed tools
described in the documents.
When disassembling or assembling the product, make sure to wear
gloves to avoid injury from metal parts with sharp edges.
Take care not to drop any screws, washers, or clips inside the
printer body. Should it fall in, do not boot up your printer until the
part has been safely removed.
After reassembling the printer, make sure all the parts and the
screws are put back in place and the cables are not caught between
metal parts.
Though toner and developer are safe for human body, they may
cause irritation to skin and eyes. If toner gets into your eyes, wash it
away immediately with water. If irritation continues, see a physician.
If toner gets in your mouth, rinse immediately with plenty of water.
If swallowed, induce vomiting and consult a physician.
Do not throw used toner cartridges or toner into the flames.
Do not use vacuum cleaner for home use to clean up spills of
powdered toners. The very fine particles can cause fire/explosion.
Sweep them thoroughly with a broom or wipe them with a cloth
moistened with neutral detergent. If a large amount of toner is
spilled, use a toner vacuum designed specifically to clean toner.
Ozone gas is generated by the printer as a by-product of the
printing process. The amount of gas is too small to be harmful,
however, some users may feel uncomfortable under the following
conditions. It is desirable to advice the users to ventilate the room
when using the printer.
When using the printer for a long period of time in a room with
poor ventilation.
When printing a large amount of documents at a time.
When using multiple printers in the same room.
In order to protect sensitive microprocessors and circuitry, use
static discharge equipment, such as anti-static wrist straps, when
accessing internal components.
Do not use thinner or alcohol when cleaning the product as it may
result in discoloration or deformation.
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This manual is revised when the system, component, or part of the product is modified as a result of continuing improvements to the product’s performance and functions.
See the table below for recent updates.
Revision History
Revision Date of Issue Description
A January 16, 2008 First Release
B February 1, 2008 All chapters:
Some connector numbers described in all chapters were corrected.
Chapter 3:
Service request errors were changed.
Chapter 4:
An adjustment point was added in the Developing Unit removal procedure.
“ Disassembly Flowchart” (p.76) was changed.
“ Disassembly Flowchart” (p.120) was changed.
PF Paper Conveyance Clutch figure was changed.
Chapter 5:
Firmware update was added in “5.1 Adjustment Item” (p.141).
“5.2.2 Updating firmware” (p.145) was added.
Chapter 7:
Some explanations in “7.3.1 Status Sheet” (p.166) were corrected.
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Contents
Chapter 1PRODUCT DESCRIPTION
1.1 Product Specifications .......................................................................................... 4
1.1.1 Basic Specifications................................................................................... 4
1.1.2 Paper Specifications .................................................................................. 8
1.1.3 Replacement Parts ................................................................................... 11
1.1.4 Controller Specifications ......................................................................... 12
1.2 List of Printer Messages ..................................................................................... 13
Chapter 2OPERATING PRINCIPLES
2.1 Electrical parts layout ......................................................................................... 16
2.2 Technical Explanation of Print Process.............................................................. 20
2.2.1 Charging .................................................................................................. 20
2.2.2 Exposure.................................................................................................. 21
2.2.3 Development............................................................................................ 22
2.2.4 Transfer/Separation ................................................................................. 23
2.2.5 Cleaning................................................................................................... 24
2.2.6 Fusing ...................................................................................................... 25
2.2.7 Paper exit section..................................................................................... 26
2.2.8 Duplex/conveying section ....................................................................... 27
2.3 Paper Feed .......................................................................................................... 28
2.3.1 Cassette paper feed section...................................................................... 28
2.3.2 MP tray paper feed section...................................................................... 29
2.3.3 Paper conveying section.......................................................................... 30
2.3.4 Optional cassette paper feed section........................................................ 31
Chapter 3TROUBLESHOOTING
3.1 Troubleshooting Flowchart ................................................................................ 33
3.2 Initial Checks...................................................................................................... 33
3.3 Symptoms ........................................................................................................... 34
3.3.1 Errors indicated by the LEDs .................................................................. 34
3.3.2 Print Quality Problems ............................................................................ 34
3.3.3 Electrical Problems.................................................................................. 36
3.3.4 Mechanical Problems .............................................................................. 36
3.4 Troubleshooting.................................................................................................. 37
3.4.1 Paper Jam Error ....................................................................................... 37
3.4.2 LED Indication ........................................................................................ 40
3.4.3 Controller-related Service Call Errors..................................................... 47
3.4.4 Image Quality Problems.......................................................................... 57
3.4.5 Electrical Problems.................................................................................. 61
3.4.6 Mechanical Problems .............................................................................. 63
Chapter 4DISASSEMBLY AND ASSEMBLY
4.1 Preliminary Check.............................................................................................. 66
4.1.1 Tool List .................................................................................................. 66
4.1.2 Parts/Units that Should Not be Disassembled......................................... 66
4.1.3 How to Read this Chapter ...................................................................... 67
4.2 List of Disassembly/Reassembly Parts/Units..................................................... 69
4.3 Main Unit Disassembly/Reassembly.................................................................. 70
4.3.1 Group 1.................................................................................................... 70
4.3.2 Group 2.................................................................................................... 75
4.3.3 Group 3.................................................................................................... 82
4.3.4 Group 4.................................................................................................... 87
4.3.5 Group 5.................................................................................................... 92
4.3.6 Group 6.................................................................................................... 98
4.3.7 Group 7.................................................................................................. 106
4.3.8 Group 8.................................................................................................. 113
4.3.9 Group 9.................................................................................................. 119
4.3.10 Group 10.............................................................................................. 126
4.3.11 Group 11.............................................................................................. 131
4.3.12 Group 12.............................................................................................. 136
Chapter 5ADJUSTMENT
5.1 Adjustment Item ............................................................................................... 141
5.2 Adjustment ....................................................................................................... 142
5.2.1 Writing USB ID..................................................................................... 142
5.2.2 Updating firmware ................................................................................ 145
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Chapter 6MAINTENANCE
6.1 Cleaning............................................................................................................ 151
Chapter 7APPENDIX
7.1 Connection Summary ....................................................................................... 155
7.1.1 Connection Diagram.............................................................................. 155
7.1.2 Board Connection Summary ................................................................. 156
7.2 Control Panel Special Operations..................................................................... 162
7.2.1 Operation Method & Functions............................................................. 162
7.2.2 Special Menu ......................................................................................... 165
7.3 Information Sheet ............................................................................................. 166
7.3.1 Status Sheet ........................................................................................... 166
7.3.2 Engine Status Sheet ............................................................................... 168
7.3.3 Print Log Report.................................................................................... 170
7.4 Exploded Diagram / Parts List ......................................................................... 172
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CHAPTER
1
PRODUCT DESCRIPTION
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
PRODUCT DESCRIPTION Product Specifications 4
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1.1 Product Specifications
AcuLaser M2000D/M2000DN/M2010D/M2010DN is a non-impact monochrome
page printer that takes advantage of a laser and electrophotographic technologies.
1.1.1 Basic Specifications
PRINTER SPECIFICATIONS
OPTIONAL UNIT
Item Spec.
Resolution 600 dpi, 1200 dpi
Print speed (Single-sided / Duplex) 28 ppm / 14 ppm
Warm-up time (23°C, 50% RH) Less than 17 seconds
Control Panel No LCD
CPU 64bit RISC CPU (300MHz)
RAM
Standard Standard model: 32MB
Network model: 64MB
Max. Standard model: 288MB
Network model: 320MB
Interfaces Standard model: Hi-Speed USB 2.0 (1.1
compatible) and Parallel Port
Network model: Hi-Speed USB 2.0 (1.1
compatible) and Ethernet Port
Printer Language ESC/Page (B/W), FX, ESCP2, I239X,
PCL5e, PCL6, Adobe PostScript3 and
PDF1.3
Dimensions (Main unit) 378 mm (W) x 390 mm (D) x 255 mm (H)
Weight (Main unit) Less than 11.5 kg
Power supply AC 110 V: 60 Hz
AC 220 ~ 440 V: 50 Hz / 60 Hz
Power consumption
(100V/110V/220-240V)
Max. 110 V: 780 W
220 V ~ 240 V: 840 W
Printing 110 V: 449 W
220 V ~ 240 V: 465 W
Ready
(Eco Fuser ON)
110 V: 7 W
220 V ~ 240 V: 7 W
Sleep 110 V: 3 W
220 V ~ 240 V: 3 W
Stand by 0 W
Noise Printing 53 dB
Standby 30 dB
Storage and transportation conditions Temperature: 0 ~ 35 °C
Humidity: 15 ~ 80% RH
Life 100,000 pages or five years
Optional paper
cassette unit
Capacity: Up to 250 sheets
Paper size: A4, A5, B5, Letter, Executive, LGL 13” (GLG), F4”
Item Spec.
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
PRODUCT DESCRIPTION Product Specifications 5
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EXTERNAL VIEW AND PART NAMES
Figure 1-1. Front view
Figure 1-2. Rear view
Table 1-1. Part Names
No. Name No. Name
1 Top cover (Cover A) 4 MP tray
2 Control Panel 5 Subtray
3 Standard lower paper cassette 6 Stopper
1
2
3
4
5
6
Table 1-2. Part Names
No. Name No. Name
1 Rear cover 5 USB interface connector
2 AC inlet 6 Network interface connector
3 Power switch 7 Parallel interface connector
4 Option cover
1
2
3
4
5
6
7
5
[Standard model]
[Network model]
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
PRODUCT DESCRIPTION Product Specifications 6
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Figure 1-3. Inside the printer
Table 1-3. Part Names
No. Name No. Name
1 Fuser unit 3 Developer unit
2 Photoconductor unit 4 Toner cartridge
1
2
2
3
3
4
4
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PRODUCT DESCRIPTION Product Specifications 7
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DIMENSIONS AND WEIGHT
The following figure shows the dimensions and weight of the printer.
NOTE 1 : Manufacturing tolerance is ±5 mm in dimensions and ±0.5 kg in weight.
2 : Imaging cartridges are not included in the weight of the main unit.
Figure 1-4. Dimensions and Weight
INSTALLATION SPACE REQUIREMENTS
The following figure shows the dimensions of the space required around the printer.
Be sure to provide the space for installation, operation, and maintenance.
Figure 1-5. Installation Space Requirements
Table 1-4. Dimensions and Weight List
NO. Configuration W*1 D H Weight
1 Main unit 379mm 390mm 255mm 11.5kg or less
2 Main unit + One Option Feeder 378mm 390mm 355mm 14.5kg
3 Main unit + Two Option Feeders 378mm 390mm 454mm 17.5kg
4 Option Feeder 375mm 390mm 100mm 3.0kg
W
No. 1
No. 2
No. 3
No. 4
H
D
200mm
300mm
500mm
978mm
300mm
1,090mm
455mm*
200mm
* 655 mm is required when two option feeders are installed.
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PRODUCT DESCRIPTION Product Specifications 8
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1.1.2 Paper Specifications
SUPPORTED PAPERS
* : Standard paper: Xerox Premier 80gsm
*1: When 297mm or longer length paper is used, the user needs to support the rear end of the paper with his/her hand.
Table 1-5. Supported Papers
Paper Feeder Paper Type Paper Size
Capacity
(Height)
Weight
Standard Cassette Standard paper*/Plain paper/Recycled paper A4, A5, B5, LT, HLT, LGL,GLG, EXE, F4 250 sheets 60 ~ 90 g/m
2
Fine quality paper A4, A5, B5, LT, HLT, LGL, GLG, EXE, F4 28 mm 91 ~ 120 g/m
2
MP tray Standard paper*/Plain paper/Recycled paper A4, A5, B5, LT, HLT, LGL, GLT, GLG, EXE, F4 50 sheets 60 ~ 90 g/m
2
Fine quality paper A4, A5, B5, LT, HLT, LGL, GLT, GLG, EXE, F4 5 sheets 91 ~ 120 g/m
2
Special media Transparency A4, LT 5 sheets ---
Postcard Postcard 20 sheets 190 g/m
2
Label A4, LT 5 sheets ---
Thick paper A4, A5, B5, LT, EXE 5 sheets 121~ 220 g/m
2
Envelope C5, C6, DL, Com10, Monarch, ISO-B5 5 sheets ---
User defined
Width: 70.00 mm ~ 215.90 mm
Length: 148.00mm ~ 356.00 mm*
1
50 sheets 60 ~ 90 g/m
2
5 sheets 91 ~ 220 g/m
2
Duplex unit Standard paper*/Plain paper/Recycled paper A4, LT --- 60 ~ 105 g/m
2
Option Cassette Standard paper*/Plain paper/Recycled paper A4, A5, B5, LT, LGL, GLG, EXE, F4 250 sheets 60 ~ 120 g/m
2
Fine quality paper A4, A5, B5, LT, LGL, GLG, EXE, F4 28 mm 91 ~ 120 g/m
2
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PRODUCT DESCRIPTION Product Specifications 9
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UNSUITABLE PAPERS
The following types of paper should not be used, otherwise decreased print quality,
paper misfeeds, or damage to the printer may occur.
Specially-treated papers, such as carbon-backed, non-carbon, heat-sensitive,
pressure-sensitive, or acid paper
Extremely thick or extremely thin papers
Damp paper
Art paper, coated paper for color printers
Extremely smooth or extremely rough paper, or paper with uneven surface
Perforated paper or paper with punched hole
Folded, curled, wrinkled, or torn paper
Paper of a non-standard shape (not rectangular)
Label that peels off easily
Papers with glue, staples, or paper clips
Inkjet printer paper (Photo Quality Ink Jet Paper, Glossy Paper, Glossy Film, etc.)
Printouts printed by a heat-transfer printer or an inkjet printer
Transparency for other color laser printers or color photocopiers
Printouts printed by another color/monochrome laser printer or a photocopier
Sheets of paper stuck together using glue or the like
Postcards for inkjet printers
Iron-on Transfer Paper (for inkjet printers or laser printers)
Paper that deteriorates or discolors at 225 °C or lower
When using illustrated postcards, paper feed rollers may be soiled with paper dust
and these cards may not be fed properly. In this case, clean the rollers with
reference to Chapter 6 “MAINTENANCE” (p.150)
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PRODUCT DESCRIPTION Product Specifications 10
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PRINTABLE AREA
Maximum print area (Printing is guaranteed)
Paper width: 215.9 mm x Length: 356.0 mm
Guaranteed print area
Area excluding 4-mm margins on all four edges
Table 1-6. Guaranteed Print Area
ENVELOPE ORIENTATION
POSTCARD ORIENTATION
PAPER EJECT/CAPACITY
* : When standard paper (A4) is used.
4.0 mm 4.0 mm
4.0 mm4.0 mm
Envelope Size
DL, C6, Com10, Monarch C5, ISO-B5
Feeding
Direction
↑
Postcard type
Postcard Front side printing Postcard Reverse side printing
Feeding
Direction
↑
Load envelopes on the MP tray with the side to be printed face
up.
Proper paper feeding is not guaranteed for printing on the
backside of envelopes.
Do not use envelopes that have a tape or glue.
Paper eject Capacity Remarks
Face down 250* sheets 200* sheets for duplex printing.
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
PRODUCT DESCRIPTION Product Specifications 11
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1.1.3 Replacement Parts
Consumables
Toner Cartridge : 8,000 pages / 3,500pages
Periodic replacement parts
This printer does not include any parts or units needing periodic replacement.
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PRODUCT DESCRIPTION Product Specifications 12
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1.1.4 Controller Specifications
BASIC SPECIFICATIONS
EXTERNAL INTERFACES
Figure 1-6. External Interfaces
CPU VR5500 (300MHz)
Enhanced Technology RIT (NICE)
RAM Standard (on-board) Standard model: 32MB
Network model: 64MB
Maximum Standard model: 288MB
Network model: 320MB
Expansion Type SDRAM 90pin DIMM
(64MB, 128MB, 256MB)
Numbers of slot 1 slot
ROM Type 16-bit width (3.3V)
Program 16MB
Font Included in the program
EEPROM Serial type 128Kbit
Control panel Three buttons and six LEDs. No LCD
Printer language ESC/Page (B/W), FX, ESC2, I239X, PCL5e, PCL6,
Adobe PostScript3 and PDF1.3
Auxiliary software
Status Sheet printing
EpsonNetConfig (Web) (Network model only)
USB Ext I/F Status Sheet
Network Status Sheet printing (Network model
only)
PS3 Status Sheet printing
PS3 Font List printing
PCL Font Sample printing
Hex dump
MAINTENANCE MODE (only for Engine Status
Sheet and Print Log Report)
Standard model USB
2.0 HS
Parallel
IEEE1284 compliant
Network model USB
2.0 HS
Network 100BaseTX/10BaseT
[Standard model]
[Network model]
USB
Parallel
Network
USB
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PRODUCT DESCRIPTION List of Printer Messages 13
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1.2 List of Printer Messages
The following table shows the printer’s LEDs indications in each printer status.
The meanings of the symbols used in the table are as follows.
O:Lights
---: Lights or flashes depending on the condition
X: Off
Δ1: Flashes on and off at intervals of 0.3 seconds
Δ2: Flashes on and off at intervals of 0.6 seconds
Δ3: Flashes on for 0.6 seconds and off for 2.4 seconds
Table 1-7. List of Printer Messages
Sort Printer Status
LEDs status
Error
Memory
Toner
Paper
Ready
Data
Status
ROM CHECK XXXOXX
RAM CHECK XXOXXX
Unable Clear Error X --- --- --- X ---
Self Test XOXXXX
Reset All Δ
1 XXXΔ1 Δ1
Reset --- --- --- --- --- --Cancel All Print Job Δ
1 Δ1 --- X Δ1 ---
Cancel Print Job (by panel) Δ
1 X --- X Δ1 ---
Writing ROM P --- --- --- --- X Δ
1
Form Feed X --- --- --- --- Δ1
Status Sheet
ESC/Page Font Sample
PCL Font Sample
ESCP2 Font Sample
FX Font Sample
1239X Font Sample
PS3 Status Sheet
PS3 Font List
Engine Status Sheet
X --- --- --- --- Δ
1
Warming Up X --- --- --- Δ1 ---
Offline
Δ3 --- --- --- X ---
Cancel Print Job (by host) Δ1 --- --- --- Δ1 ---
Filling toner xx*1 min --- Δ3 Δ3 Δ3 --- --Sleep: X --- --- --- Δ3 ---
Ready X --- --- --- O ---
(Printing) X --- --- --- --- ---
(Communication with inactive I/F) --- --- --- --- --- ---
(Job being executed (ready)) --- --- --- --- --- ---
*1: "xx" indicates remaining time period (minutes).
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
PRODUCT DESCRIPTION List of Printer Messages 14
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Warning
Reserve Job Canceled
X Δ1 --- --- --- ---
Form Data Canceled X Δ1 --- --- --- ---
Can't Print X Δ1 --- --- --- ---
Collate Disabled X Δ1 --- --- --- ---
Image Optimum X Δ1 --- --- --- ---
Check Paper Type X --- --- Δ1 --- ---
Need Memory X Δ1 --- --- --- ---
Toner Low X --- Δ1 --- --- ---
Worn Main unit Δ3 --- X --- --- ---
NonGenuineToner X --- Δ3 --- --- ---
Table 1-7. List of Printer Messages
Sort Printer Status
LEDs status
Error
Memory
Toner
Paper
Ready
Data
Error
Service Req Cffff
*2
OOOOOO
Service Req Eggg OXXXOO
Optional RAM Error OOXXX---
Write Error ROM P OOXXX---
Jam WWWW
*3
OXXOX---
Install Imaging Cart OXOXX---
Image Cart ID Error OXOXX---
NonGenuine Toner Δ
1 XOXX---
Image Cart R/W Error OXOXX---
Replace Main Unit O Δ
2 Δ2 Δ2 X ---
WWWW
*3
Open OXXXX---
Install LC1 OXXΔ
1 X ---
Install LC2 OXXΔ
1 X ---
Manual Feed sss
*4
Δ2 X X Δ2 Δ2 ---
Can't Print Duplex Δ1 X X O X ---
Paper Out ttt*5 sss
*6
O X X Δ1 X ---
Replace Toner O X O X X ---
Paper Set ttt*5 sss
*6
Δ1 X X Δ1 X ---
Print Overrun Δ1 O X X X ---
Mem Overflow Δ1 O X X X ---
Duplex Mem Overflow Δ1 O X X X ---
Invalid Data Δ1 O X X X ---
Invalid PS3 O O X X X ---
Table 1-7. List of Printer Messages
Sort Printer Status
LEDs status
Error
Memory
Toner
Paper
Ready
Data
*2: For details on the Service Req error code, see “3.4.3 Controller-related Service Call
Errors” (p.47)
.
*3: “WWWW” indicates the jammed or opened point. See
“3.4.1 Paper Jam Error”
(p.37)
.
*4: “sss” indicates the Page Size setting of the control panel.
*5: “ttt” indicates the Paper Source setting (except for “Auto”) of the control panel.
*6: “sss” indicates the paper size setting in the Tray Menu of the control panel.
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CHAPTER
2
OPERATING PRINCIPLES
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
OPERATING PRINCIPLES Electrical parts layout 16
Confidential
2.1 Electrical parts layout
POWER WRITING BOARDS
Figure 2-1. Power Writing Boards
1. Main Board Assy.
Main controller section:
Controls the software such as the print data processing and provides the
interface with computers.
Engine section:
Controls printer hardware such as high voltage/bias output control, paper
conveying system control, and fuser temperature control, etc.
2. LVPS
After full-wave rectification of AC power source input, switching for converting
to 24 V DC for output. Controls the fuser heater lamp.
3. HVPS
Generates main charging, developing bias, transfer bias.
4. Control Panel Board
Consists the LED indicators and key switches.
5. APC PWB
Generates and controls the laser beam.
6. PD PWB
Controls horizontal synchronizing timing of laser beam.
7. Zener PWB
Adjusts the drum surface potential.
8. Eraser lamp PWB
Eliminates the residual electrostatic charge on the drum.
Machine inside
Machine left
Machine right
1
2
3
5
7
8
6
4
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OPERATING PRINCIPLES Electrical parts layout 17
Confidential
SWITCHES AND SENSORS
Figure 2-2. Switches and sensors
1. Power switch
Turns ON/OFF the AC power source.
2. Interlock switch
Shuts off 24 V DC power line when the top cover is opened.
3. Cassette switch
Detects open/close cassette.
4. Registration sensor
Detects the timing of primary paper feed.
5. Paper sensor
Detects the presence of paper in the cassette.
6. MP paper sensor
Detects the presence of paper on the MP tray.
7. Exit sensor
Detects paper jam in the fuser or duplex conveying section.
8. Toner sensor
Detects the quantity of toner in a toner container.
9. Fuser thermistor
Measures the heat roller temperature.
10. Fuser thermal cutout
Shuts off the power source to the fuser heater lamp when the heat roller reaches
extremely high temperature.
Machine inside
Machine left
Machine right
1
9
10
2
4
5
8
6
3
7
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
OPERATING PRINCIPLES Electrical parts layout 18
Confidential
OTHER ELECTRICAL COMPONENTS
Figure 2-3. Other electrical components
1. Main motor
Drives the paper feed/conveying section and fuser unit.
2. Polygon motor
Drives the polygon mirror.
3. Right cooling fan motor
Cools the interior of machine.
4. Left cooling fan motor
Cools the interior of machine.
5. Registration clutch
Controls the secondary paper feed.
6. Paper feed clutch
Controls the paper cassette paper feed.
7. Developing clutch
Controls the toner feed.
8. Duplex solenoid
Controls the paper conveying at the duplex conveying section.
9. MP paper feed solenoid
Controls the MPF bottom plate of the MP tray.
10. Fuser heater lamp
Heats the heat roller.
1
2
3
4
10
597
6
8
Machine inside
Machine left
Machine right
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
OPERATING PRINCIPLES Electrical parts layout 19
Confidential
OPTION PAPER FEEDER
Figure 2-4. Option Paper Feeder
1. PF Main Board
Controls electrical components in the paper feeder and serial communications with
the printer.
2. PF paper sensor
Detects the presence of paper in the cassette.
3. PF cassette switch
Detects the existence of the cassette.
4. PF paper feed sensor
Detects paper jam in the paper feeder.
5. PF paper feed motor
Drives the paper feed mechanism in the paper feeder.
6. PF paper feed clutch
Controls the drive of the paper feed roller.
7. PF paper conveying clutch
Controls the drive of the middle roller.
5
1
2
3
4
6
7
Machine inside
Machine left
Machine right
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
OPERATING PRINCIPLES Technical Explanation of Print Process 20
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2.2 Technical Explanation of Print Process
2.2.1 Charging
DRUM SECTION
The durable layer of organic photoconductor (OPC) is coated over the aluminum
cylinder base. The OPC tend to reduce its own electrical conductance when exposed to
light. After a cyclic process of charging, exposure, and development, the electrostatic
image is constituted over the OPC layer. Since the OPC is materialized by resin, it is
susceptible to damage caused by sharp edges such as a screwdriver, etc., resulting in a
print quality problem. Also, finger prints can cause deterioration of the OPC layer,
therefore, the drum (in the drum unit) must be handled with care. Substances like water,
alcohol, organic solvent, etc., should be strictly avoided. As with all other OPC drums,
the exposure to a strong light source for a prolonged period can cause a print quality
problem. The limit is approximately 500 lux for less than five minutes. If the drum
(drum unit) remains removed from the printer, it should be stored in a cool, dark place.
Figure 2-5. Drum section
MAIN CHARGER UNIT
As the drum rotates in a “clean (neutral)” state, its photoconductive layer is given a
uniform, positive (+) corona charge dispersed by the main charger wire. Due to highvoltage scorotron charging, the charging wire can get contaminated by oxidization
after a long run. Therefore, the charger wire must be cleaned at a specific interval.
Cleaning the charging wire prevents print quality problems such as black streaks.
Figure 2-6. Main charger unit
Figure 2-7. Drum unit and main charger unit block diagram
Drum Drum shaft
Drum cover A
Drum cover B
Main charger grid
Main charger
wire cleaner
Main charger wire
Main charger shield
Main charger wire
Main charger shield
Main charger grid
Drum
HVPS
Main charger output
Zener
PWB
M
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OPERATING PRINCIPLES Technical Explanation of Print Process 21
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2.2.2 Exposure
LASER SCANNER UNIT (LSU)
The charged surface of the drum is then scanned by the laser beam from the laser
scanner unit.
The laser beam (780 nm wavelength) beam is dispersed as the polygon motor revolves
to reflect the laser beam over the drum. Various lenses and mirror are housed in the
laser scanner unit, adjust the diameter of the laser beam, and focalize it at the drum
surface.
Figure 2-8. Exposure section
Figure 2-9. Laser scanner unit
Polygon motor (mirror)
F-θ lens
LSU mirror
LSU shutter
LSU flame
LSU cover
LSU mirror
Polygon motor
(mirror)
PD mirrorSOS lens
Pin photo diode
sensor (PD PWB)
Laser diode
(APC PWB)
Callimator
lens
Cylindrical
lens
F-θ lens
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OPERATING PRINCIPLES Technical Explanation of Print Process 22
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2.2.3 Development
The latent image constituted on the drum is developed into a visible image. The
developing roller contains a 3-pole (S-NS) magnet roller and an aluminum cylinder
rotating around the magnet roller. Toner attracts to the magnet sleeve since it is
powdery ink made of black resin bound to iron particles. Developing blade,
magnetized by magnet, is positioned approximately 0.3 mm above the magnet sleeve to
constitute a smooth layer of toner in accordance with the magnet sleeve revolution.
The developing roller is applied with the AC-weighted, positive DC power source.
Toner on the magnet sleeve is given a positive charge. The positively charged toner is
then attracted to the areas of the drum which was exposed to the laser light. (The gap
between the drum and the magnet sleeve is approximately 0.32 mm.) The non-exposed
areas of the drum repel the positively charged toner as these areas maintain the positive
charge.The developing roller is also AC-biased to ensure contrast in yielding by
compensating the toner’s attraction and repelling action during development.
Figure 2-10. Development section
Figure 2-11. Developing section block diagram
Blade
magnet
Magnet
sleeve
Magnet
roller
DLP
screw A
DLP
screw B
DLP case
Developing
blade
DLPDRN
Developing
clutch
YC808-6
B
Developing
roller
Magnet roller
Magnet sleeve
Developing bias output
HVPS
Main Board Assy.
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OPERATING PRINCIPLES Technical Explanation of Print Process 23
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2.2.4 Transfer/Separation
The transfer/separation section consists of the transfer roller, discharger brush and
paper chute guide. A high voltage generated by the HVPS (High Voltage Power
Supply) is applied to the transfer roller for transfer charging. Paper after transfer is
separated from the drum.
Figure 2-12. Transfer/separation section
Figure 2-13. Transfer/separation section block diagram
Transfer roller
Transfer bushes
Paper chute guide
Discharger brush
DC brush holder
T
Transfer
roller
GND
HVPS
Transfer bias
Discharger
brush
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OPERATING PRINCIPLES Technical Explanation of Print Process 24
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2.2.5 Cleaning
After the transferring process, the drum needs to be physically cleaned of toner which
is residual after the development process. The cleaning blade is constantly pressed
against the drum and scrapes the residual toner off to the sweep roller. The waste toner
is collected at the output end of the sweep roller and sent back to the toner container,
into the waste toner reservoir.
After the drum is physically cleaned, it then must be cleaned to the electrically neutral
state. This is necessary to erase any residual positive charge, ready to accept the
uniform charge for the next print process. The residual charge is canceled by exposing
the drum to the light emitted from the eraser lamp (PWB). This lowers the electrical
conductivity of the drum surface making the residual charge on the drum surface
escape to the ground.
Figure 2-14. Cleaning section
Figure 2-15. Cleaning section block diagram
Main frame
Waste toner reservoir
Drum unit
Eraser lamp (PWB)
Sweep roller Cleaning blade
ERASER
YC816-1
Drum
Eraser
lamp
(PWB)
Main Board Assy.
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OPERATING PRINCIPLES Technical Explanation of Print Process 25
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2.2.6 Fusing
The toner on the paper is molten and pressed into the paper as it passes between the
heat roller and the press roller in the fuser unit. The heat roller has a heater lamp inside
which continuously turns on and off by the fuser thermistor to maintain the constant
temperature onto the heat roller surface. The heat roller is resin coated by florin to
prevent toner from accumulating on the roller after a long run. Care must be taken
while handling the heat roller not to scratch the roller surface as doing so may result in
print problems. Fuser temperature is optimized to the paper type. The heat roller has
four separators (claws) which are continuously in contact with its surface. These
separators (claws) prevent the paper on which toner has been fused from being wound
around the heat roller causing paper jam. The press roller is made of the heat-resistant
silicon rubber. This roller is used to strongly press the paper towards the heat roller by
means of press springs. The temperature of the heat roller is constantly monitored by
the main board assy. using the fuser thermistor. Should the temperature of the heat
roller exceed the predetermined value, the fuser thermal cutout is activated to
effectively disconnect the heater lamp from power.
Figure 2-16. Fuser section
Figure 2-17. Fuser section block diagram
Upper fuser
frame
Lower fuser
frame
Heat roller
Separators
Fuser heater
lamp
Fuser thermal
cutout
Fuser thermistor
Actuator
(exit sensor)
Press roller
Exit sensor
Fuser lever L (R)Press spring holders
Press
springs
Fuser
bushes
N
L
THERM
HEATN
SLEEP
ZCROSS
YC102-1
YC102-3
YC103-6
YC103-7
YC103-8
YC811-5
YC811-6
YC811-3
YC811-16
Fuser unit
Fuser
thermistor
Fuser
heater
lamp
Fuser thermal cutout
LVPS
Main Board ASSY.
HVPS
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OPERATING PRINCIPLES Technical Explanation of Print Process 26
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2.2.7 Paper exit section
The paper exit section transports the paper which passed the fuser unit towards the top
tray. The paper which passed through the fuser unit turns on the actuator (exit sensor)
in the fuser unit, and is led by the guide comprised of the rear cover, frame and the FD
cover guide, finally reaching the upper FD roller. The paper is delivered to the top tray
by the rotation of the upper FD roller.
Figure 2-18. Paper exit section
Figure 2-19. Paper exit section block diagram
Rear cover
Exit roller
Middle pulley
Fuser exit pulley
Exit pulley
Upper FD roller
Actuator
(exit sensor)
Exit sensor
Top tray
FD cover
EXITN
YC807-3
Fuser unit
Exit sensor
Main Board ASSY.
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OPERATING PRINCIPLES Technical Explanation of Print Process 27
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2.2.8 Duplex/conveying section
The duplex/conveying section consists of conveying path which sends the paper sent
from the eject section to the paper feed/conveying section when duplex printing.
Figure 2-20. Duplex/conveying section
Figure 2-21. Duplex/paper conveying section block diagram
DU cover B DU holder
Middle
pulley B
DU
roller
Feed
pulley
Feed
roller
Lower base
cover
EXITN
DUDR1
DUDR2
YC807-3
YC817-1
YC817-3
Fuser unit
Exit sensor
Duplex solenoid
Main Board ASSY.
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
OPERATING PRINCIPLES Paper Feed 28
Confidential
2.3 Paper Feed
Paper feed/conveying section consists of the paper feed unit that feeds paper from the
cassette and the MP tray paper feed unit that feeds paper from the MP tray, and the
paper conveying section that conveys the fed paper to the transfer/separation section.
2.3.1 Cassette paper feed section
Figure 2-22. Cassette paper feed section
Figure 2-23. Cassette paper feed section block diagram
Feed
holder
Paper feed
roller
Retard
guide
Bottom plate
Paper
sensor
Retard
holder
Retard
roller
Pickup
roller
Actuator
(paper sensor)
Cassette base
FEDDRN
MMOTRDYN
YC806-3
Paper sensor
Paper feed
Clutch
Main motor
Main Board ASSY.
PAP ER
MOTCLK
REMOTEN
YC808-4
YC805-3
YC805-4
YC805-5
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
OPERATING PRINCIPLES Paper Feed 29
Confidential
2.3.2 MP tray paper feed section
Figure 2-24. MP tray paper feed section
Figure 2-25. MP tray paper feed section block diagram
MP paper
sensor
MPF
frame
Actuator
(MP paper sensor)
MPF guide
R/L
MPF
middle tray
MPF upper
tray
MPF
base
MPF turn
guide
MPF bottom
plate
MPF
separator
MPF
friction pad
Paper feed
roller
MPF
separation
pad
MMOTRDYN
YC804-3
MPFDRN
MP paper sensor
MP paper
feed solenoid
Main motor
Main Board ASSY.
HANDSN
YC809-2
MOTCLK
REMOTEN
YC805-3
YC805-4
YC805-5
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
OPERATING PRINCIPLES Paper Feed 30
Confidential
2.3.3 Paper conveying section
Figure 2-26. Paper conveying section
Figure 2-27. Paper conveying section block diagram
Lower
registration roller
Upper
registration roller
Actuator
(registration sensor)
Registration
sensor
Feed pulley
MMOTRDYN
REGDRN
Registration
clutch
Main motor
Main Board ASSY.
YC811-11
Registration
sensor
HVPS
REGN
YC808-2
MOTCLK
REMOTEN
YC805-3
YC805-4
YC805-5
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
OPERATING PRINCIPLES Paper Feed 31
Confidential
2.3.4 Optional cassette paper feed section
Figure 2-28. Optional cassette paper feed section
Figure 2-29. Paper feeder block diagram
Cassette
cover
PF middle
pulley
Cassette
holder
Middle
roller
Actuator
(PF paper feed sensor)
Feed
bracket
PF paper feed
sensor
Feeder
pin
Top
cover
PF Main
Board
Top
frame
PF paper
sensor
Bottom
plate
Actuator
(PF paper
sensor)
PF cassette
switch
Pickup
roller
Bottom
pad
Paper
feed roller
Retard
holder
Retard
roller
Retard
guide
Cassette base
Paper feeder
interface connector
Paper feeder
interface connector
PFSEL
PFSEL
PFSEL signal
processing
+3.3 V
+24 V
+3.3 V
+24 V
UART
UART
PF paper
conveying clutch
LVPS
Main Board ASSY.
Control
circuit
Cassette
open/close
detection circuit
Paper
detection
circuit
Printer
Paper feeder 1
Paper feeder 2
PF Main Board
CPU
PF paper
sensor
PF cassette
switch
PF paper
feed clutch
PF paper
feed motor
PF paper
feed sensor
Confidential
CHAPTER
3
TROUBLESHOOTING
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
TROUBLESHOOTING Troubleshooting Flowchart 33
Confidential
3.1 Troubleshooting Flowchart
Troubleshoot a problem of printer operation or print quality following the flowchart
shown below.
3.2 Initial Checks
The followings must be checked before starting troubleshooting.
Do the following ambient conditions satisfy the specification?
Surrounding space
Temperature and humidity
Does the paper type or paper condition satisfy the specification?
Are the consumables Epson-brand?
Is there significant contamination inside the printer?
Have the firmwares for the controller and engine controller been upgraded to the
latest version?
Start
Initial check
Recovered?
End of work
3.2 Initial Checks (page 33)
3.3 Symptoms (page 34)
YES
NO
Find the cause of the problem
3.4 Troubleshooting (page 37)
Troubleshooting
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
TROUBLESHOOTING Symptoms 34
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3.3 Symptoms
3.3.1 Errors indicated by the LEDs
The status of the LEDs are indicated as shown below in the following table.
3.3.2 Print Quality Problems
Lights
Flashes on and off at intervals of 0.3 seconds.
Flashes on and off at intervals of 0.6 seconds.
Flashes on for 0.6 seconds and off for 2.4 seconds.
Off
LED Indication Description Reference
A paper jam error is occurring.
Page 37
An error other than paper jam is occurring.
Page 40
Symptom Reference
Bands or smudges that appear at regular
intervals.
Bands or smudges appear on the printout at
regular intervals.
Page 57
Completely blank
Completely blank pages are printed.
Page 57
Completely black
Completely solid black pages are printed.
Page 58
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TROUBLESHOOTING Symptoms 35
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Areas of images are missing
Areas of the printed image are missing.
Page 58
Black dots
Black dots appear on the printout.
Page 59
Horizontal line
A horizontal black line appears on the printout.
Page 59
Symptom Reference
ABC
123
ABC
123
ABC
123
Vertical line
A vertical black line appears on the printout.
Page 59
Light or faint image
The printed image is light or faint.
Page 59
Dirt on the background
The background is dark or dirty, or toner
smudges appear partially on the printout.
Page 60
Symptom Reference
ABC
123
ABC
123
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TROUBLESHOOTING Symptoms 36
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3.3.3 Electrical Problems
3.3.4 Mechanical Problems
Toner smudges
Toner smudges appear on the top edge or nonprinted side of the page.
Page 60
Wavy image
The printed image on the upper right side
(scanning start position) of the page is wavy.
Page 60
Symptom Reference
ABC
123
Symptom Reference
The machine does not operate when the power switch is turned on.
Page 61
Right cooling fan motor does not operate.
Left cooling fan motor does not operate.
Power supply fan motor does not operate.
Registration clutch does not operate.
Paper feed clutch does not operate.
Developing clutch does not operate.
MP paper feed solenoid does not operate.
Duplex solenoid does not operate.
Eraser lamp does not turn on.
The machine does not detect paper loaded in the cassette.
A paper jam in the paper feed/conveying section or fuser section is indicated
when the power switch is turned on.
The machine does not detect that the top cover is closed.
Symptom Reference
No primary paper feed.
Page 63
No secondary paper feed.
Skewed paper feed.
Multiple sheets of paper are fed at one time.
Paper jams.
Toner drops on the paper conveying path.
Abnormal noise is heard.
Paper becomes wrinkled, creased, or curled.
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
TROUBLESHOOTING Troubleshooting 37
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3.4 Troubleshooting
3.4.1 Paper Jam Error
When a paper jam error occurs, check the message displayed on the EPSON Status
Monitor, or the jam code printed on the Engine Status Sheet in order to find out the
jammed point, and check the relevant sensors, rollers, or any other relevant parts for
any abnormality.
FINDING JAMMED POINT
When a paper jam error message appears
EPSON Status Monitor Message Jammed Point
Remove cassette 3 and then remove any jammed paper.
c
Remove cassette 2 and then remove any jammed paper.
d
Remove cassette 1 and then remove any jammed paper.
e
Temporarily remove the paper from the MP tray.
f
Open cover B and remove any jammed paper.
ij
Open the DM tray from either the front or the rear, whichever is accessible
from the space from which cassette 1 was removed, and then remove any
jammed paper.
h
Open cover A and remove the developer unit and photoconductor unit, and
then carefully remove any jammed paper.
g
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
TROUBLESHOOTING Troubleshooting 38
Confidential
When a paper jam error message does not appear
Print the Engine Status Sheet and check the jam code on the printout to find out the
jammed point and the cause. The jam code is expressed in 8-digit hexadecimal.
(1) Jammed point information*
(2) Jam cause information
(3) Feeder
Jam code Explanation
80 Reserved
40 Cassette 3 (option)
20 Cassette 2 (option)
10 Cassette 1
08 MP tray
04 Cover B
02 DM tray
01 Photoconductor unit (inside the printer)
Jam code Explanation Jammed point
10
Paper did not reach the registration sensor.
efh
11
Paper did not go forward from the registration sensor.
g
12
The registration sensor detected paper at power-on.
g
20
Paper did not reach the fuser sensor.
g
21
Paper did not go forward from the fuser sensor.
i
22
The fuser sensor detected paper at power-on.
i
30
Paper did not reach the PF sensor of the optional
cassette 1.
d
00 NN NN NN
Fixed to 00 (1) (2) (3)
31
Paper did not go forward from the PF sensor of the
optional cassette 1.
d
32
The PF sensor of the optional cassette 1 detected
paper at power-on.
d
40
Paper did not reach the PF sensor of the optional
cassette 2.
c
41
Paper did not go forward from the PF sensor of the
optional cassette 2.
c
42
The PF sensor of the optional cassette 2 detected
paper at power-on.
c
A1
Paper did not reach the exit sensor.
j
A3
Paper did not go forward from the exit sensor.
h
E0
An error occurs during printing and the printer engine
was stopped in the middle of an operation.
---
F0 to FF Other paper jam errors
---
Jam code Explanation
00 MP tray
01 Cassette 1
02 Cassette 2 (option)
03 Cassette 3 (option)
07 Duplex printing
Jam code Explanation Jammed point
EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
TROUBLESHOOTING Troubleshooting 39
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* : When no applicable code is found in the above table, the paper jam is occurring at
multiple points. In such case, convert the hexadecimal jam code into binary, and check
the binary code to find out the multiple points with reference to the table below.
JAMMED POINT
The diagram below shows the jammed points.
Binary jam code Jammed point
10000000
Reserved
01000000
Cassette 3 (option)
00100000
Cassette 2 (option)
00010000
Cassette 1
00001000
MP tray
00000100
Cover B
00000010
DM tray
00000001
Photoconductor unit (inside the printer)
05
00000101
00000100
Example for reading the binary code:
00000001
Hexadecimal jam code
Binary jam code
Photoconductor unit
(inside the printer)
Cover B
(
Fuser/Paper ejection section
)
(
Duplex/Conveying section
)
(
Cassette 1
)
(
Optional Cassette 1
)
(
Optional Cassette 2
)
MP tray
A: Registration sensor
B: Paper sensor
C: MP paper sensor
D: Exit sensor
E: PF sensor
F: PF sensor
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TROUBLESHOOTING Troubleshooting 40
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3.4.2 LED Indication
The status of the LEDs are indicated as shown below in the following table.
Lights
Flashes on and off at intervals of 0.3 seconds.
Flashes on and off at intervals of 0.6 seconds.
Flashes on for 0.6 seconds and off for 2.4 seconds.
Off
LED
indication
EPSON Status Monitor Message Explanation Possible cause / Error-causing Part Check point / Remedy
Unable to write to ROM module Writing to the program ROM could not be
performed.
Main Board Assy. Reboot the printer to make the printer
perform the writing operation again.
Replace the Main Board Assy. (See
P. 92)
Developer unit or toner cartridge installed
incorrectly
The printer failed to detect the toner
cartridge.
Toner cartridge Install the toner cartridge correctly.
Replace the toner cartridge. (See P. 70)
Incompatible toner cartridge The installed toner cartridge is the one for
another destination.
Toner cartridge Replace the toner cartridge with the correct
one. (See P. 70)
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TROUBLESHOOTING Troubleshooting 41
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Non-genuine toner cartridge installed The installed toner cartridge is not Epson-
brand.
Toner cartridge Replace the toner cartridge with an Epson-
brand cartridge. (See P. 70)
Trouble with toner cartridge The printer detected that the toner cartridge
was faulty.
Toner cartridge Replace the toner cartridge. (See P. 70)
Cover A open The cover A is open. Cover A Close the cover A.
The printer does not detect that the cover A
is closed.
The actuator that presses the interlock
switch on the cover A is damaged.
Replace the cover A (top cover). (See
P. 113)
Poor assembling or damage of the link
mechanism that presses the interlock
switch.
Check if the link mechanism is assembled
correctly. If not, reassemble it. If the
mechanism is damaged, replace it.
The interlock switch is faulty. Replace the interlock switch (LVPS). (See
P. 75)
Cassette not installed The paper cassette is not installed. Paper cassette Install the cassette to the printer.
The printer does not detect that the cassette
is installed.
Poor assembling or damage of the link
mechanism that presses the paper cassette
detection sensor.
Check if the link mechanism is assembled
correctly. If not, reassemble it. If the
mechanism is damaged, replace it.
The paper cassette detection sensor is
faulty.
Replace the paper cassette detection sensor
(HVPS). (See P. 75)
Printer set to Manual Feed “Manual Feed” is selected on the printer
driver.
---
Load paper into the MP tray and press the
Start/Stop button.
LED
indication
EPSON Status Monitor Message Explanation Possible cause / Error-causing Part Check point / Remedy
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Unable to perform duplex printing The paper size or type is not supported for
duplex printing.
---
Load paper supported for duplex printing.
Paper out No paper is loaded on the paper feeder.
---
Load paper on the feeder.
The printer does not detect paper loaded on
the feeder.
Poor assembling or damage of the actuator
for detecting paper.
Check if the actuator is assembled correctly.
If not, reassemble it. If the actuator is
damaged, replace it.
Poor connection or damage of the paper
sensor.
Check if the paper sensor is connected to
the Main Board Assy. correctly.
Replace the paper sensor. (See P. 87)
Toner cartridge at end of service life The toner cartridge has reached the end of
its life.
Toner cartridge Replace the toner cartridge. (See P. 70)
Incorrect paper size The paper size selected in the printer
driver does not match with that of the
loaded paper.
---
Load the correct sized paper on the feeder.
Page contains too much data to process The spool file is deleted in the middle of
printing and another print job is started, or
the data is abnormal due to a
communication error.
---
Delete the spool file using the printer driver,
and then press the Job Cancel button on the
printer.
Insufficient printer memory Processing operation is interrupted due to
insufficient memory or invalid operation to
the memory.
---
Lower the print quality setting in the
printer driver.
Reduce the resolution of the image to be
printed.
Add more memory to the printer.
LED
indication
EPSON Status Monitor Message Explanation Possible cause / Error-causing Part Check point / Remedy
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Not enough printer memory to print using
duplex function
The back of the page cannot be printed
because the memory is insufficient to
process the data for duplex printing. In this
case, only front side is printed.
---
Turn the frontside-printed paper over
and reload it on the printer, and then
press the Start/Stop button to print on the
back of the paper.
Lower the print quality setting in the
printer driver.
Reduce the resolution of the image to be
printed.
Add more memory to the printer.
Unable to process print data There is something wrong with the print
data.
---
Delete the spool file using the printer driver,
and then press the Job Cancel button on the
printer.
PostScript module incompatible The installed PS3ROM module cannot be
used by the printer.
The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92)
General error E001
(Main Board EEPROM error)
The EEPROM (U800) on the Main Board
Assy. is inaccessible.
Mounting failure of the EEPROM (U800) Check if the EEPROM (U800) is properly
mounted. If not, fix it.
The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92)
EEPROM (U800) is faulty. Replace the EEPROM (U800).
LED
indication
EPSON Status Monitor Message Explanation Possible cause / Error-causing Part Check point / Remedy
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General error E002
(Main motor error)
The main motor ready signal could not be
detected within 2 seconds after the motor
becomes ON.
Poor connection between the main motor
(CN1) and the Main Board Assy. (YC805).
Reconnect the connector properly.
Check the connector cable for electric
continuity. If no continuity is found,
replace the cable.
There is some problem in the main motor
drive transmission path.
Check if the rollers and gears are
smoothly rotating. If not, apply grease to
the bearings and gears.
Check if any of the gears are damaged.
If so, replace the damaged gears.
The main motor is faulty. Replace the main motor. (See P. 92)
The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92)
General error E004
(Polygon motor error)
The polygon motor ready signal could not
be detected within 6 seconds after the motor
becomes ON.
Poor connection between the polygon
motor (laser scanner unit) and the Main
Board Assy. (YC819).
Reconnect the connector properly.
Check the connector cable for electric
continuity. If no continuity is found,
replace the cable.
The laser scanner unit is faulty. Replace the laser scanner unit. (See P. 119)
The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92)
General error E005
(Horizontal synchronization signal error)
The controller could not detect the
horizontal synchronization signal within the
specified time period.
The laser scanner unit is faulty. Replace the laser scanner unit. (See P. 119)
General error E008
(Fuser heater cable disconnection)
The fuser heater lamp was turned ON, but
the fuser temperature did not rise.
Poor connection of the fuser thermistor. Check if the connector (YC105) on the
LVPS is properly inserted. If not, reconnect
it.
Poor connection of the fuser heater lamp
connector.
Check if the connector (YC102) on the
LVPS is properly inserted. If not, reconnect
it.
Mounting failure of the fuser thermistor. Replace the fuser unit. (See P. 106)
Fuser thermal cut-out has been activated.
Mounting failure of the fuser heater lamp.
The fuser heater lamp has breaks.
LED
indication
EPSON Status Monitor Message Explanation Possible cause / Error-causing Part Check point / Remedy
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General error E009
(Abnormally high fuser heater temperature)
The fuser thermistor detected abnormal
high temperature.
The fuser thermistor shorted out. Replace the fuser unit. (See P. 106)
The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92)
General error E010
(Fuser thermistor short-circuit)
The A/D value input from the fuser
thermistor is “0” (zero).
Poor connection of the fuser thermistor. Check if the connector (YC105) on the
LVPS is properly inserted. If not, reconnect
it.
The fuser thermistor has breaks. Replace the fuser unit. (See P. 106)
Mounting failure of the fuser thermistor.
Fuser thermal cut-out has been activated.
Mounting failure of the fuser heater lamp.
The fuser heater lamp has breaks.
General error E011
(Zero cross signal error)
The Main Board Assy. did not receive the
zero cross signal during a specified time
period.
Poor connection between the HVPS
(YC202) and the Main Board Assy.
(YC811).
Reconnect the connector properly.
Check the connector cable for electric
continuity. If no continuity is found,
replace the cable.
Poor connection between the LVPS
(YC103) and the HVPS (YC201).
Reconnect the connector properly.
The LVPS is faulty. Replace the LVPS. (See P. 75)
The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92)
General error E016
(Option cassette unit communication error)
The communication between the Main
Board Assy. and the PF main board of the
option cassette unit cannot be established.
Mounting failure of the option cassette unit. Check if the unit is properly mounted. If
not, fix it.
Poor connection between the Main Board
Assy. (YC818) and the PF interface
connector.
Reconnect the connector properly.
Check the connector cable for electric
continuity. If no continuity is found,
replace the cable.
The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92)
Poor connection between the PF main board
(YC5) and the PF interface connector.
Reconnect the connector properly.
Check the connector cable for electric
continuity. If no continuity is found,
replace the cable.
The PF main board is faulty. Replace the PF main board. (See P. 136)
LED
indication
EPSON Status Monitor Message Explanation Possible cause / Error-causing Part Check point / Remedy
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General error E998
(Engine communication error)
Communication error between the
controller on the Main Board Assy. and the
engine controller.
The firmware of the engine controller is
faulty.
Reinstall the engine controller firmware.
(See P. 148)
The Main Board Assy. is faulty. Replace the Main Board Assy. (See P. 92)
LED
indication
EPSON Status Monitor Message Explanation Possible cause / Error-causing Part Check point / Remedy
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3.4.3 Controller-related Service Call Errors
Remedy
When a controller-related error occurs, first check on the initial check items listed
below. If the printer still does not recover, troubleshoot the problem with reference
to the tables given on the following pages. Find the error you face in the tables,
and replace the error-causing parts one by one.
Initial check
Is the printer properly grounded?
Are the connectors properly connected to the controller board?
Is the DIMM properly installed on the controller board?
Does the printer recover by turning the power off and back on several times?
Is there any equipment that causes noise around the printer?
When turning the printer off and on for the above initial check,
wait for several seconds before turning it back on. Do not turn it
back on immediately after power-off.
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Error-causing parts
The status of the LEDs are indicated as shown below in the following table.
Light
Off
LED
indication
Classification Error code Explanation
Error-causing parts (or factor)
Main Board Assy.
Option
RAM DIMM
Noise or other
factor
C/D 0017 Occurrence of an interrupt exception
Causative Not causative Causative
C/D 0081 TLB change exception
Causative Not causative Causative
C/D 0082 TLB exception (load or fetch)
Causative Not causative Causative
C/D 0083 TLB exception (store)
Causative Not causative Causative
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C/D 0084 Address error exception (load or fetch)
Causative Not causative Causative
C/D 0085 Address error exception (store)
Causative Not causative Causative
C/D 0086 Bus error exception (store)
Causative Not causative Causative
C/D 0087 Bus error exception (loading or storing data)
Causative Not causative Causative
C/D 0088 System call exception
Causative Not causative Causative
C/D 0089 Breakpoint exception
Causative Not causative Causative
LED
indication
Classification Error code Explanation
Error-causing parts (or factor)
Main Board Assy.
Option
RAM DIMM
Noise or other
factor
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C/D 0090 Reserve instruction exception
Causative Not causative Causative
C/D 0091 Coprocessor disabled exception
Causative Not causative Causative
C/D 0092 FPU exception (invalid operation)
Causative Not causative Causative
C/D 0093 TLB exception
Causative Not causative Causative
C/D 0094 XTLB exception
Causative Not causative Causative
C/D 0095 Cash exception
Causative Not causative Causative
LED
indication
Classification Error code Explanation
Error-causing parts (or factor)
Main Board Assy.
Option
RAM DIMM
Noise or other
factor
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C/D 0096 Trap exception
Causative Not causative Causative
C/D 0097 Floating point exception
Causative Not causative Causative
C/D 0098 Watch exception
Causative Not causative Causative
C/D 0128-254 Undefined trap
Causative Not causative Causative
C/D 0255 NMI exception
Causative Not causative Causative
C/D 0256 Divide-by-zero
Causative Not causative Causative
LED
indication
Classification Error code Explanation
Error-causing parts (or factor)
Main Board Assy.
Option
RAM DIMM
Noise or other
factor
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C/D 0257 Operation overflow exception
Causative Not causative Causative
C/D 0258 Occurrence of break
Causative Not causative Causative
C/D 0800 IPL error (the controller cannot start up due to a problem of itself)
Causative Not causative Not causative
C/D 0998 Engine communication error (only at power-on)
Causative Not causative Not causative
C/D 0999 No Flash ROM program data
Causative Not causative Not causative
C/D 1000 Standard RAM error (no memory space or the like)
Causative Not causative Not causative
LED
indication
Classification Error code Explanation
Error-causing parts (or factor)
Main Board Assy.
Option
RAM DIMM
Noise or other
factor
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C/D 1001 Standard RAM error
(memory space is less than minimum stack size or a similar cause)
Causative Not causative Not causative
C/D 1002 Standard RAM error
(memory space is less than standard size or a similar cause)
Causative Not causative Not causative
C/D 1020 RAM error (slot 0)
Causative Causative Not causative
C/D 1120 ROM checksum error (bit0 to 7) (program)
Causative Not causative Not causative
C/D 1121 ROM checksum error (bit8 to 15) (program)
Causative Not causative Not causative
C/D 1122 ROM checksum error (bit16 to 23) (program)
Causative Not causative Not causative
LED
indication
Classification Error code Explanation
Error-causing parts (or factor)
Main Board Assy.
Option
RAM DIMM
Noise or other
factor
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C/D 1123 ROM checksum error (bit24 to 31) (program)
Causative Not causative Not causative
C/D 1151 Printer ROM checksum error
Causative Not causative Not causative
C/D 1152 FONT-ROM checksum error
Causative Not causative Not causative
C/D 1153 PS module / checksum error
Causative Not causative Not causative
C/D 1154 Network module / checksum error
Causative Not causative Not causative
C/D 1155 Expansion FONT-ROM / checksum error
Causative Not causative Not causative
LED
indication
Classification Error code Explanation
Error-causing parts (or factor)
Main Board Assy.
Option
RAM DIMM
Noise or other
factor
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C/D 1200 EEPROM writing error
Causative Not causative Not causative
C/D 1210 Limit of the number of writing to EEPROM
Causative Not causative Not causative
C/D 1400 Engine initialization failure
Causative Not causative Not causative
C/D 1700 Error of loopback test of the network circuit
Causative Not causative Not causative
C/D 1703 Error of SRAM R/W of the network circuit
Causative Not causative Not causative
C/D 1999 Other hardware error
Causative Not causative Not causative
LED
indication
Classification Error code Explanation
Error-causing parts (or factor)
Main Board Assy.
Option
RAM DIMM
Noise or other
factor
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C/D 2000 Software error
Causative Not causative Not causative
LED
indication
Classification Error code Explanation
Error-causing parts (or factor)
Main Board Assy.
Option
RAM DIMM
Noise or other
factor
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3.4.4 Image Quality Problems
BANDS OR SMUDGES THAT APPEAR AT REGULAR INTERVALS
Horizontal bands or smudges appear at regular intervals due to a problem of some
roller(s).
Measure the interval and check if the measured value match with any of the values
shown below. If it does, replace the appropriate part or unit.
COMPLETELY BLANK
Completely blank pages are printed.
Rollers Part/Unit to be Replaced Interval
Upper registration roller Upper registration roller 25 mm
Lower registration roller Lower registration roller 38 mm
Transfer roller Transfer roller 45 mm
Developing roller Developing unit 63 mm
Heat roller Fuser unit 73 mm
Pressure roller Fuser unit 79 mm
Photoconductor drum Photoconductor unit 94 mm
Upper registration roller
Lower registration roller
Developing roller
Photoconductor drum
Transfer rollerPressure roller
Heat roller
Sample Possible cause Checkpoint & Remedy
The photoconductor unit or
the developing unit is
faulty.
Open the top cover and check if the
photoconductor unit or the developing unit
is properly installed.
Check if there is something wrong with
terminals between the charging unit and
the photoconductor unit.
Transfer bias or developing
bias is not normal.
Replace the HVPS.
Poor connection
between the developing
bias terminal (spring)
and the high voltage
output terminal B
(J401,J402,J403) on the
HVPS.
Poor connection
between the bias
terminal (spring) and the
transfer bias output
terminal T
(J201,J202,J203) on the
HVPS.
Check if the HVPS is installed at the correct
position. If not, correct the position.
The laser scanner unit is
faulty.
Replace the laser scanner unit. (See P. 119)
The Main Board Assy. is
faulty.
Replace the Main Board Assy. (See P. 92)
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COMPLETELY BLACK
Completely solid black pages are printed.
¸
AREAS OF IMAGES ARE MISSING
Areas of the printed image are missing.
Sample Possible cause Checkpoint & Remedy
The charging unit is
faulty.
Open the top cover and check if the
photoconductor unit is properly installed.
Check if there is something wrong with
terminals between the charging unit and the
photoconductor unit.
Poor connection between
the main charger terminal
(spring) and the main
charger output terminal M
on the HVPS.
Check if the HVPS is installed at the correct
position. If not, correct the position or replace
the unit. (See P. 75)
The main charger is
faulty.
Replace the HVPS. (See P. 75)
The charging wire has
breaks.
Replace the charging unit. (See P. 82)
The Main Board Assy. is
faulty.
Replace the Main Board Assy. (See P. 92)
Sample Possible cause Checkpoint & Remedy
Developing roller inside
the developing unit is
faulty.
If the missing area appears at intervals of 63mm,
the developing roller in the developing unit may
be damaged. Replace the developing unit. (See
P. 82)
The photoconductor is
faulty.
If the missing area appears at intervals of 94mm,
the photoconductor drum in the photoconductor
unit may be damaged. Replace the
photoconductor unit. (See P. 82)
The fuser unit (heat roller
or pressure roller) is
faulty.
If the missing area appears at intervals of 73mm
or 79mm, the heat roller or the pressure roller
inside the fuser unit may be damaged. Replace
the fuser unit. (See P. 106)
The paper is inadequate or
faulty.
Damp paper or paper with rough surface can
cause the problem. Replace the paper with new
one.
Mounting failure of the
transfer roller.
Check if both ends of the transfer roller are
properly inserted into the bearings. Clean the
bearings if they are contaminated with oil or
paper dust. Replace the transfer roller if
necessary. (See P. 82)
Transfer bias is not
normal.
Replace the HVPS (See P. 75) or the Main Board
Assy. (See P. 92)
ABC
123
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BLACK DOTS
Black dots appear on the printout.
HORIZONTAL LINE
A horizontal black line appears on the printout.
VERTICAL LINE
A vertical black line appears on the printout.
LIGHT OR FAINT IMAGE
The printed image is light or faint.
Sample Possible cause Checkpoint & Remedy
The photoconductor
unit or the developing
unit is faulty.
If the black dots appear at intervals of 94mm,
the photoconductor drum in the
photoconductor unit may be damaged. Replace
the photoconductor unit. (See P. 82)
If the black dots appear at random intervals,
toner may be leaking from the developing unit
or the photoconductor unit. Replace the
photoconductor unit or the developing unit.
(See P. 82)
Sample Possible cause Checkpoint & Remedy
The photoconductor unit
is not properly grounded.
Check if the drum shaft of the photoconductor
unit and the grounding tab on the printer properly
contact with each other. Apply a small amount of
conductive grease to the grounding tab as
necessary.
The photoconductor unit
is faulty.
Replace the photoconductor unit. (See P. 82)
ABC
123
ABC
123
Sample Possible cause Checkpoint & Remedy
The charging wire has
acquired oxide on its
surface.
Remove the photoconductor unit. Slide the green
charger cleaner tab (located at upper side of the
photoconductor unit) from side to side several
times. When finished, put the tab back into place.
(See P. 152)
The photoconductor unit
is faulty.
If toner bands are observed on the photoconductor
drum after printing, the cleaner blade in the
photoconductor unit is not properly functioning.
Replace the photoconductor unit. (See P. 82)
The developing roller in
the developing unit is
faulty.
Replace the developing unit. (See P. 82)
Sample Possible cause Checkpoint & Remedy
The paper is inadequate
or faulty.
Damp paper or paper with rough surface can cause
the problem. Replace the paper with new one.
Mounting failure of the
transfer roller.
Check if both ends of the transfer roller are
properly inserted into the bearings. Clean the
bearings if they are contaminated with oil or paper
dust. Replace the transfer roller if necessary. (See
P. 82)
Transfer bias is not
normal.
Replace the HVPS (See P. 75) or the Main Board
Assy. (See P. 92)
ABC
123
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DIRT ON THE BACKGROUND
The background is dark or dirty, or toner smudges appear partially on the printout.
TONER SMUDGES
Toner smudges appear on the top edge or non-printed side of the page.
WAVY IMAGE
The printed image on the upper right side (scanning start position) of the page is wavy.
Sample Possible cause Checkpoint & Remedy
Electric potential on the
drum surface is not
normal.
Replace the photoconductor unit. (See P. 82)
The main charger grid is
faulty.
Clean the main charger grid. (See P. 152)
The developing roller in
the developing unit is
faulty.
Replace the developing unit. (See P. 82)
Sample Possible cause Checkpoint & Remedy
Paper feed and
conveying paths are
contaminated with toner.
Check the following points for toner smudges, and
clean the points if necessary.
Paper shoot guide
Paper conveying path
Photoconductor unit
Bottom part of the developing unit
Inlet of the fuser unit
The transfer roller is
faulty.
Clean the transfer roller if it is contaminated with
toner. Or print low coverage pages continuously
until the smudges disappear.
ABC
123
ABC
123
Sample Possible cause Checkpoint & Remedy
The polygon motor in
the developing unit is
faulty.
Replace the laser scanner unit. (See P. 119)
The Main Board Assy. is
faulty.
Replace the Main Board Assy. (See P. 92)
Line is wavy
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3.4.5 Electrical Problems
Problem Possible cause Checkpoint & Remedy
The machine
does not operate
when the power
switch is turned
on.
The AC power source
is not powered.
Measure the input voltage.
The power plug is not
properly inserted.
Make sure the power plug is properly inserted into
the power source.
The top cover is not
completely closed.
Close the top cover completely.
The power code has
breaks.
Check the code for electric continuity. If no
continuity is found, replace the code.
The power switch is
faulty.
Check the contact points of the power switch for
electric continuity. If no continuity is found, replace
the code.
The fuse on the power
supply board has
burned out.
Replace the LVPS. (See P. 75)
The interlock switch is
faulty.
Check both terminals of the interlock switch for
electric continuity. If no continuity is found, replace
the LVPS. (See P. 75)
The LVPS is faulty. Replace the LVPS. (See P. 75)
The Main Board Assy.
is faulty.
Replace the Main Board Assy. (See P. 92)
Right cooling fan
motor does not
operate.
The right cooling fan
motor coils have
breaks.
Check the coils for electric continuity. If no
continuity is found, replace the right cooling fan
motor. (See P. 69)
Poor connection
between the right
cooling fan motor and
the Main Board Assy.
(YC815).
Reconnect the connector cable properly.
Check the connector cable for electric continuity.
If no continuity is found, replace the cable.
The Main Board Assy.
is faulty.
Replace the Main Board Assy. (See P. 92)
Left cooling fan
motor does not
operate.
The left cooling fan
motor coils have
breaks.
Check the coils for electric continuity. If no
continuity is found, replace the left cooling fan
motor. (See P. 113)
Poor connection
between the left
cooling fan motor and
the LVPS (YC104).
Reconnect the connector cable properly.
Check the connector cable for electric continuity.
If no continuity is found, replace the cable.
The Main Board Assy.
is faulty.
Replace the Main Board Assy. (See P. 92)
Registration
clutch does not
operate.
The registration clutch
coils have breaks.
Check the coils for electric continuity. If no
continuity is found, replace the registration clutch.
(See P. 98)
Poor connection
between the
registration clutch and
the Main Board Assy.
(YC808).
Reconnect the connector cable properly.
Check the connector cable for electric continuity.
If no continuity is found, replace the cable.
The Main Board Assy.
is faulty.
Replace the Main Board Assy. (See P. 92)
Paper feed clutch
does not operate.
The paper feed clutch
coils have breaks.
Check the coils for electric continuity. If no
continuity is found, replace the paper feed clutch.
(See P. 98)
Poor connection
between the paper
feed clutch and the
Main Board Assy.
(YC808).
Reconnect the connector cable properly.
Check the connector cable for electric continuity.
If no continuity is found, replace the cable.
The Main Board Assy.
is faulty.
Replace the Main Board Assy. (See P. 92)
Problem Possible cause Checkpoint & Remedy
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Developing
clutch does not
operate.
The developing clutch
coils have breaks.
Check the coils for electric continuity. If no
continuity is found, replace the developing clutch.
(See P. 98)
Poor connection
between the
developing clutch and
the Main Board Assy.
(YC808).
Reconnect the connector cable properly.
Check the connector cable for electric continuity.
If no continuity is found, replace the cable.
The Main Board Assy.
is faulty.
Replace the Main Board Assy. (See P. 92)
MP paper feed
solenoid does not
operate.
The MP paper feed
solenoid coils have
breaks.
Check the coils for electric continuity. If no
continuity is found, replace the MP paper feed
solenoid. (See P. 92)
Poor connection
between the MP paper
feed solenoid and the
Main Board Assy.
(YC809).
Reconnect the connector cable properly.
Check the connector cable for electric continuity.
If no continuity is found, replace the cable.
The Main Board Assy.
is faulty.
Replace the Main Board Assy. (See P. 92)
Duplex solenoid
does not operate.
The duplex solenoid
coils have breaks.
Check the coils for electric continuity. If no
continuity is found, replace the duplex solenoid
(paper eject unit). (See P. 106)
Poor connection
between the duplex
solenoid and the Main
Board Assy. (YC817).
Reconnect the connector cable properly.
Check the connector cable for electric continuity.
If no continuity is found, replace the cable.
The Main Board Assy.
is faulty.
Replace the Main Board Assy. (See P. 92)
Problem Possible cause Checkpoint & Remedy
Eraser lamp does
not turn on.
Poor connection
between the eraser
lamp (YC701) and the
Main Board Assy.
(YC816).
Reconnect the connector cable properly.
Check the connector cable for electric continuity.
If no continuity is found, replace the cable.
The eraser lamp is
faulty.
Check the eraser lamp for electric continuity. If no
continuity is found, replace the eraser lamp. (See
P. 119)
The Main Board Assy.
is faulty.
Replace the Main Board Assy. (See P. 92)
The machine
does not detect
paper loaded in
the cassette.
The paper sensor is
faulty.
Replace the paper sensor. (See P. 87)
Poor connection
between the paper
sensor and the Main
Board Assy. (YC806).
Reconnect the connector cable properly.
Check the connector cable for electric continuity.
If no continuity is found, replace the cable.
A paper jam in
the paper feed/
conveying
section or fuser
section is
indicated when
the power switch
is turned on.
Paper dust or other
foreign matter on/
around the registration
sensor or the exit
sensor.
Remove any paper dust or foreign matter.
The registration sensor
on the HVPS is faulty.
Replace the HVPS. (See P. 75)
The exit sensor is
faulty.
Replace the exit sensor (fuser unit). (See P. 106)
The machine
does not detect
that the top cover
is closed.
The interlock switch
on the LVPS is faulty.
Check both terminals of the interlock switch for
electric continuity. If no continuity is found when
the switch is turned on, replace the LVPS. (See
P. 75)
Problem Possible cause Checkpoint & Remedy
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3.4.6 Mechanical Problems
Problem Possible cause Remedy
No primary
paper feed.
The paper feed roller
surface is
contaminated with
paper dust or other
foreign matter.
Clean the roller surface using isopropyl alcohol.
(See P. 152)
The paper feed roller
has become deformed.
Visually check the paper feed roller for deformation.
Replace the roller if deformation is observed. (See
P. 126)
Mounting failure of the
paper feed clutch.
Visually check the paper feed clutch. If the clutch is
not properly installed, fix it.
No secondary
paper feed.
The upper or/and
lower registration
rollers surface is
contaminated with
paper dust or other
foreign matter.
Clean the roller surface using isopropyl alcohol.
(See P. 152)
Mounting failure of the
registration clutch.
Visually check the registration clutch. If the clutch is
not properly installed, fix it.
Skewed paper
feed.
The paper guide inside
the cassette is not
properly adjusted.
Check if the paper guide is properly adjusted or
installed. If not, adjust the position or replace the
paper guide.
Multiple sheets
of paper are fed
at one time.
The separation roller
or the separation pad is
worn out.
If the roller or the pad is worn out, replace it. (See
P. 126)
The paper has become
curled.
If the paper has become curled, replace the paper.
Paper jams. The paper has become
curled.
If the paper has become curled, replace the paper.
Poor contact between
the upper and lower
registration rollers.
If the two rollers do not properly contact with each
other, fix it.
The heat roller or the
pressure roller is
extremely
contaminated, or has
become deformed.
Replace the fuser unit. (See P. 106)
Poor contact between
the paper eject roller
and the fuser paper
eject pulley.
If the roller and the pulley do not properly contact
with each other, fix it.
Toner drops on
the paper
conveying path.
The developing unit or
the photoconductor
unit is extremely
contaminated.
Clean the developing unit or the photoconductor
unit.
Abnormal noise
is heard.
The rollers, roller
bearings, and gears do
not rotate smoothly.
If any obstacles are found, remove them.
Apply grease to the bearings and gears if their
surface is dry.
Mounting failure of the
paper feed clutch,
registration clutch, or
developing clutch.
If any abnormality is found, fix it.
Problem Possible cause Remedy
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Paper becomes
wrinkled,
creased, or
curled.
Lower the fusing pressure using the following procedure.
1. Remove the paper cassette.
2. Open the duplex cover.
3. Slide both left and right fuser levers inward.
Lowering the fusing pressure may cause degradation in toner
fixity.
Problem Possible cause Remedy
Right Fuser Lever
Duplex Cover
Left Fuser Lever
Paper becomes
wrinkled,
creased, or
curled.
Problem Possible cause Remedy
Normal
Fusing pressure
is lowered
Left (Right)
Fuser Lever
Left (Right)
Fuser Lever
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CHAPTER
4
DISASSEMBLY AND ASSEMBLY
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4.1 Preliminary Check
4.1.1 Tool List
The tools listed below are required for disassembling the printer.
4.1.2 Parts/Units that Should Not be Disassembled
Do not disassemble the following parts or units. Doing so can result in malfunction of
the printer.
Consumables / After Service Parts
Do not disassemble the consumables or parts/units that are supplied as After
Service Parts.
Example:
Toner Cartridge
Fuser Unit
Laser Scanner Unit
Parts/Units that are not described in this manual
Do not disassemble any parts/units that are not described in this manual.
Especially, the main frame must be kept unchanged from its original state because
the frame position has been strictly adjusted at the factory. Never loosen or remove
the screws securing the frame.
Tool Name Code Usage Reference
Phillips screwdriver No.2 1080532
For disassembling all of
the parts/units
---
Long-nose pliers 1080564 Use as required ---
Tweezers 1080561 Use as required ---
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4.1.3 How to Read this Chapter
PAGE CONFIGURATION
Opening page Main page
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1.3.4 Group 4
CONTENT
Table 1-7.
Parts/Units to be Disassembled
Guide
Paper Feed Roller (Paper Cassette)
Paper Sensor
Separation Roller (Paper Cassette)
A
B
C
Paper Sensor
Paper Feed Roller (Paper Cassette)
A
B
- Bottom of Main Unit -
Separation Roller (Paper Cassette)
C
Part Name/Guide
Lists parts or units included in the Group.
Each of their disassembly procedure is given
with the alphabetic character shown in the
Guide column.
Location
Shows location of each
part.
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Paper Cassette
1. Remove the Paper Cassette.
A1 B1
C1
Paper Cassette
Paper Feed Roller (Paper Cassette)
1. Push the lever and remove the Paper Feed Roller.
Match the Feed Shaft end with the oval hole on the Paper Feed Roller.
A2 B2
Shape of the Shaft
Oval shape
Feed Shaft
Paper Feed Roller
Feed Shaft
Feed Shaft
Paper Feed Roller
Lever
Procedure
Describes disassembly procedure.
Reassemble the parts or units by
reversing the disassembly procedure.
Part Name
Shows part to be
disassembled or operation to
be performed in the column.
Final Procedure
The pink Guide indicates that the
step is the final step of the
disassembly procedure.
Guide
Guide to indicate the
procedural steps.
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PROCEDURE
1. Find the part/unit you want to remove in the table.
2. Check the alphabetic character “Guide” in the Guide column for the target
part/ unit.
Example: When you want to remove the Separation Roller, its “Guide” is
“C”.
3. Go to main pages, find the columns that has the “Guide” character on the
upper left corner, and perform the procedure described in the columns in
numerical sequence.
Example: To disassemble the Separation Roller, find columns with “C”
on their upper left corner, and follow the procedures in the
columns in numerical order.
1.3.4 Group 4
CONTENT
Table 1-7.
Parts/Units to be Disassembled
Guide
Paper Feed Roller (Paper Cassette)
Paper Sensor
Separation Roller (Paper Cassette)
A
B
C
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Paper Cassette
1. Remove the Paper Cassette.
A1 B1
C1
Paper Cassette
Paper Feed Roller (Paper Cassette)
1. Push the lever and remove the Paper Feed Roller.
Match the Feed Shaft end with the oval hole on the Paper Feed Roller.
A2 B2
Shape of the Shaft
Oval shape
Feed Shaft
Paper Feed Roller
Feed Shaft
Feed Shaft
Paper Feed Roller
Lever
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Paper Sensor
1. Put the printer upside down.
2. Pull the Feed Shaft out in the direction of the arrow.
3. Disengage the two hooks and remove the holder.
4. Remove the actuator from the holder.
5. Disengage the hook and remove the Paper Sensor.
6. Disconnect the connector from the Paper Sensor.
B3
Feed Shaft
Actuator
Connector
Paper Sensor
Holder
Bottom
Hooks
Separation Roller (Paper Cassette)
1. Secure the Bottom Plate by pressing it down.
C2
Separation Roller
Bottom Plate
Front Face
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4.2 List of Disassembly/Reassembly Parts/Units
Table 4-1. List of Disassembly/Reassembly Parts/Units (Main Unit)
Category parts / units Reference
Main Unit
Consumables Toner Cartridge
P. 70
Exterior Parts
Controller Cover P. 70
Front Cover P. 70
Top Cover P. 113
Right Cover P. 92
Left Cover P. 75
Rear Cover P. 70
Control Panel P. 113
Paper
Conveyance
Parts
Paper Feed Roller (Paper Cassette)
P. 87
Separation Roller (Paper Cassette)
P. 87
Paper Feed Roller (MP Tray) P. 70
Paper Sensor P. 87
MP Paper Sensor P. 98
Paper Feed Clutch P. 98
MP Paper Feed Solenoid P. 92
Registration Clutch P. 98
Paper Eject Unit P. 106
Development
Parts
Developing Unit
P. 82
Developing Clutch P. 98
Photoconductor Unit P. 82
Charging Unit P. 82
Eraser Lamp P. 119
Toner Sensor P. 98
Exposure Parts Laser Scanner Unit P. 119
Transfer Parts Transfer Roller P. 82
Fusing Parts Fuser Unit P. 106
Main Unit
Electrical Parts
Main Board Assy.
P. 92
LVPS Unit P. 75
Control Panel Board P. 113
HVPS Unit P. 75
RFID Board P. 98
Other Parts
Main Motor P. 92
Left Cooling Fan Motor P. 113
Right Cooling Fan Motor P. 92
Gear Unit P. 92
Table 4-2. List of Disassembly/Reassembly Parts/Units
(Optional Paper Cassette Unit)
Category parts / units Reference
Optional
Paper
Cassette
Unit
Paper
Conveyance
Parts
Middle Roller P. 126
Paper Feed Roller P. 126
Separation Roller P. 126
PF Paper Feed Motor P. 131
PF Paper Feed Clutch P. 131
PF Paper Conveyance Clutch P. 131
PF Paper Feed Sensor P. 136
Electrical Parts PF Main Board P. 136
Table 4-1. List of Disassembly/Reassembly Parts/Units (Main Unit)
Category parts / units Reference
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4.3 Main Unit Disassembly/Reassembly
4.3.1 Group 1
CONTENT
Parts/Units to be Disassembled
Guide
Toner Cartridge
Front Cover
Rear Cover
Paper Feed Roller (MP Tray)
Controller Cover
A
B
C
D
E
Toner Cartridge
Front Cover
Paper Feed Roller (MP Tray)
A
B
D
Controller Cover
E
Rear Cover
C
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DISASSEMBLY FLOWCHART
A1
B1
C1
D1
E1
Start
Toner Cartridge
(P. 72)
Rear Cover
(P. 73)
Paper Feed Roller (MP Tray)
(P. 73)
Front Cover
(P. 72)
Controller Cover
(P. 74)
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Toner Cartridge
1. Open the Top Cover and the Front Cover.
2. Move the Lock Lever to unlock the Toner Cartridge.
3. Remove the Toner Cartridge.
A1
Toner Cartridge
Top Cover
Front Cover
Lock Lever
Front Cover
1. Slightly open the Front Cover and disengage both sides of the cover from the MP Tray by
bowing the Guide portions of the cover.
2. Pull the Front Cover toward you to disengage its joints on both sides, and remove the cover.
B1
Guide
Joint
Joint
Front Cover
Guide
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Rear Cover
1. Open the Rear Cover.
2. Pull out the right shaft of the Rear Cover (as seen from the rear) using a flat-blade
screwdriver or similar tool, and remove the Rear Cover.
C1
Rear Cover
Shaft
Shaft
Paper Feed Roller (MP Tray)
1. Open the Front Cover.
2. Pull the lever down ( ).
3. Slide the holder out ( ).
4. Remove the Paper Feed Roller ( ).
Match the shaft end with the hole for insertion of the Paper Feed Roller.
D1
Shaft
Paper Feed Roller
Hole for insertion
Shape of the Shaft end
Lever
Paper Feed Roller
Holder
Front Cover
1
2
3
1
2
3
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Controller Cover
1. Remove the screw.
A) Silver / M3x6 / S-Tite: One piece
2. Remove the Controller Cover in the direction of the arrow.
E1
A
Controller Cover
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4.3.2 Group 2
CONTENT
Parts/Units to be Disassembled
Guide
Left Cover
LVPS Unit
HVPS Unit
A
B
C
Left Cover
A
LVPS Unit
B
HVPS Unit
C
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DISASSEMBLY FLOWCHART
C1
C2
A1B1A1
B2
C3
Start
Left Cover
(P. 77)
LVPS Unit
(P. 77)
HVPS Unit
(P. 78)
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Left Cover
1. Open the Top Cover.
2. Slightly pull out the Paper Cassette.
3. Remove the three screws.
A) Silver / M3x10 / P-Tite: Three pieces
4. Disengage the six hooks of the Left Cover in the order from the rearmost hook to the
frontmost one, and remove the Left Cover.
A1 B1
C1
Left Cover
Hooks
A
A
A
LVPS Unit
1. Disconnect the four connectors connected to the LVPS Unit ( ).
2. Remove the five screws and the grounding terminal.
A) Silver / M3x10 / P-Tite: Three pieces
B) Silver / M3x6 / S-Tite: Two pieces
3. Disconnect the LVPS Unit and the Power Supply Plate from the connector of the HVPS
Unit ( ).
B2
C2
Power Supply Plate +
LVPS Unit
A
A
A
B
B
HVPS Unit
Connector 1
Connector
2
1
2
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4. Remove the four screws, and remove the LVPS Unit from the Power Supply Plate.
C) Silver / M3x6 / S-Tite: Four pieces
Make sure the Insulating Sheet is properly positioned.
C
C
C
C
Power Supply Plate
LVPS Unit
Insulating Sheet
HVPS Unit
1. Put the printer upside down.
2. Remove the Resin Ring.
3. Remove the holder.
C3
Resin Ring
Holder
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4. Pull out the bushing.
5. Remove the cover.
Bushing
Cover
6. Remove the four screws.
A) Silver / M3x6 / P-Tite: Four pieces
7. Disengage the three hooks and remove the cover.
Hooks
A
A
A
A
Cover
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8. Remove the spring from the main unit and the Cassette Pin.
9. Slide the Cassette Pin to remove it.
When attaching the spring, first hitch its one end to the main frame, and then hitch the
other end to the Cassette Pin.
10.Slightly lift the HVPS Unit to disconnect the two connectors, and then remove the HVPS
Unit.
11.Remove the Cassette Pin Holder.
Cassette Pin Holder
Cassette Pin
Connector
Spring
The grounding plate end should come above the HVPS Unit.
Make sure the Contact Pin is properly positioned.
The contact points on the HVPS Unit should properly contact with the springs.
OK
NG
Grounding Plate
Contact Pin
Springs
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Install the Cassette Pin following the procedure below.
1. Insert the Cassette Pin end into the Cassette Pin Holder.
2. Insert the projection into the hole of the main unit.
(At this time, do not insert the projection)
3. Pull the tab in the direction of the arrow bowing the Cassette Pin, and slide the tab
toward the front side of the main unit until it passes over the projection.
4. Insert the other end of the Cassette Pin into the hole on the front side of the main unit.
5. Pull the portion bowing the pin to insert the projection into the hole of the main unit. At
this time, pay attention to the followings.
• The projection must be kept inserted into the hole of the main unit.
• The tab must not go back beyond the projection.
• The Cassette Pin end must be kept inserted into the hole of the main unit.
Step 5
Step 1, 2
Cassette Pin Holder
Cassette Pin
Assembly Drawing
D
A
B
C
Step 3, 4
A
B
C
A
B
C
D
Projection
A
B
C C
D B
A
C
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4.3.3 Group 3
CONTENT
Parts/Units to be Disassembled
Guide
Developing Unit
Photoconductor Unit
Charging Unit
Transfer Roller
A
B
C
D
Developing Unit
Photoconductor Unit
B
A
Charging Unit
C
Photoconductor Unit
Transfer Roller
D
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DISASSEMBLY FLOWCHART
D3
C1C2D1
D2
B1
A1
B2
C3
Start
Developing Unit
(P. 84)
Transfer Roller
(P. 85)
Charging Unit
(P. 85)
Photoconductor Unit
(P. 84)
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Developing Unit
1. Open the Top Cover.
2. Open the Front Cover.
3. Pull the Developing Unit toward you to remove it.
A D J U S T M E N T
R E Q U I R E D
The following operations must be carried out after the Developing Unit has been
replaced with a new one.
1. Install the toner cartridge for initial filling supplied with the Developing Unit.
2. Turn the printer on while holding down [Start/Stop] and [Information] buttons.
The printer will start up in toner filling mode.
3. When the toner filling is completed, remove the toner cartridge for initial filling,
and install the toner cartridge in use.
A1 B1
C1 D1
Developing Unit
Top Cover
Front Cover
Photoconductor Unit
1. Pull the Photoconductor Unit toward you to remove it.
B2
C2 D2
Photoconductor Unit
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Charging Unit
1. While pressing the Main Plate ( ), slide the Charging Unit ( ).
2. Pull the Charging Unit upward to remove it.
C3
1
2
Main Plate
Charging Unit
Photoconductor Unit
Charging Unit
Charging Unit
1 2
Transfer Roller
1. Slide the Paper Shoot Guide to disengage the hooks.
2. Remove the Paper Shoot Guide.
D3
Paper Shoot Guide
Hooks
Paper Shoot Guide
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3. Pull the Transfer Roller Shafts from the bearings, and remove the Transfer Roller.
4. Remove the gear from the Transfer Roller.
When attaching the Transfer Roller, push the release lever to lift its front end, and put
the gear shaft under the front end of the lever.
Lever
Transfer Roller
Gear
Shaft
Gear
Shaft
Transfer Shaft Bearings
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4.3.4 Group 4
CONTENT
Parts/Units to be Disassembled
Guide
Paper Feed Roller (Paper Cassette)
Paper Sensor
Separation Roller (Paper Cassette)
A
B
C
Paper Sensor
Paper Feed Roller (Paper Cassette)
A
B
- Bottom of Main Unit -
Separation Roller (Paper Cassette)
C
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DISASSEMBLY FLOWCHART
A2
C1B1A1
C2
B2
B3
Start
Paper Cassette
(P. 89)
Paper Feed Roller
(Paper Cassette)
(P. 89)
Paper Sensor
(P. 90)
Separation Roller
(Paper Cassette)
(P. 90)
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Paper Cassette
1. Remove the Paper Cassette.
A1 B1
C1
Paper Cassette
Paper Feed Roller (Paper Cassette)
1. Push the lever and remove the Paper Feed Roller.
Match the Feed Shaft end with the oval hole on the Paper Feed Roller.
A2 B2
End of the Shaft
Oval shape
Feed Shaft
Paper Feed Roller
Feed Shaft
Feed Shaft
Paper Feed
Roller
Lever
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Paper Sensor
1. Put the printer upside down.
2. Pull the Feed Shaft out in the direction of the arrow.
3. Disengage the two hooks and remove the holder.
4. Remove the actuator from the holder.
5. Disengage the hook and remove the Paper Sensor.
6. Disconnect the connector from the Paper Sensor.
B3
Feed Shaft
Actuator
Connector
Paper Sensor
Holder
Bottom
Hooks
Separation Roller (Paper Cassette)
1. Secure the Bottom Plate by pressing it down.
C2
Separation Roller
Bottom Plate
Front side
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DISASSEMBLY AND ASSEMBLY Main Unit Disassembly/Reassembly 91
Confidential
2. Disengage the two hooks from the back of the cassette, and remove the Separation Roller.
Attach the spring to the projection of the separation Roller holder.
Spring
Projection
Hooks
Back side
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