Epson Aculaser M 2000 Service Manual

							SERVICE MANUAL
A3 Color Laser PrinterEPSON AcuLaser  C9200N
SEPG08001
Confidential 
						

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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 ConfigurationSymbols 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.

	

„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.


	


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 SymbolsSafety Equipment†List of Safety Equipment
†Location of Safety Equipment†Safety System Wiring Schematic
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 (Front Door 
SW/Right Door SW)Shuts off 24 V DC power line when the Front Door or Right Door 
is opened.
Interlock switch (Front Door 
SW)Shuts off 5V/3.3V DC power line when the Front Door is opened.
Safety
Right Door SW
Front Door SW
Front Door SW
4039T2C133AA
Main Power Switch Sleep Relay Heater Relay
1
2
3
Front Door SW
/Right Door SW
Main DC Power 
Supply
Sub DC Power 
Supply
24V
3.3V
5V
Power supply to board
Front Door SW
4
5 
						

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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 PH unit for any 
reason whatsoever. When the PH unit malfunctions, replace it 
with a new one.
Laser Openings 
						

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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.Make sure an antivirus software is installed on the computer used 
for service support. Be sure to have the latest virus definition file for 
the software. 
						

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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 HistoryRevision
Date of Issue
Description
A
July 25, 2008
First Release
B
October 14, 2008
Revision:†
Chapter 2„
2.2.2 Parts layout drawing
: revised the contents partially.
†
Chapter 3„
Table 3-17 Error Code List
: revised the contents partially.
„
Revised E555.
†
Chapter 5„
Table 5-3 Update method for Firmware
: revised the contents.
†
Chapter 7„
In 7.2 Wiring Diagram
: added connector CNDM3.
„
7.5.5 Maintenance Status Sheet
: revised the contents partially.
C
May 17, 2010
Revision:†
Chapter 1„
1.2.1 Error Message and Troubleshooting
 was added.
„
1.2.2 Warning Message and Troubleshooting
 was added.
†
Chapter 3„
3.3.4 Other Errors
 was added.
†
Chapter 4„
 Mechanical Control Board (PWB-M)
: revised the assembling directions partially.
D
September 8, 2010
Revision:†
Chapter 3„
3.3.2 Solution to Engine-Related Error
 revised the contents partially. (E553)
†
Chapter 7„
7.6 Exploded Diagram / Parts List
: revised the contents partially. 
						

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Contents
Chapter 1PRODUCT DESCRIPTION1.1
  Product Specifications ........................................................................................  121.1.1
  Basic Specifications.................................................................................  12
1.1.2
  Paper Specifications ................................................................................  17
1.1.3
  Replacement Parts ...................................................................................  20
1.1.4
  Controller Specifications .........................................................................  21
1.2
  List of Printer Messages .....................................................................................  221.2.1
  Error Message and Troubleshooting .......................................................  25
1.2.2
  Warning Message and Troubleshooting ..................................................  28
Chapter 2OPERATING PRINCIPLES2.1
  Print Process .......................................................................................................  32
2.2
  Operating Principle of Main Unit Mechanism ...................................................  332.2.1
  Center cross section .................................................................................  33
2.2.2
  Parts layout drawing ................................................................................  35
2.2.3
  PH Unit ....................................................................................................  38
2.2.4
  Photoconductor Unit section (PU section) ..............................................  41
2.2.5
  Photo Conductor section..........................................................................  43
2.2.6
  Charge Corona section ............................................................................  44
2.2.7
  Developing section ..................................................................................  46
2.2.8
  Toner Supply section ...............................................................................  51
2.2.9
  Transfer Corona section ..........................................................................  54
2.2.10
  Toner Collecting section........................................................................  63
2.2.11
  Paper feed section (Standard Cassette)..................................................  66
2.2.12
  Bypass section (MP tray).......................................................................  69
2.2.13
  Registration Roller section ....................................................................  72
2.2.14
  Fusing section ........................................................................................  74
2.2.15
  Paper exit section ...................................................................................  81
2.2.16
  Image stabilization control ....................................................................  82
2.2.17
  Life management ...................................................................................  83
2.3
  Operating principle of Option mechanism .........................................................  852.3.1
  Optional Cassette .....................................................................................  85
2.3.2
  Duplex Unit .............................................................................................  89
2.4
  Other Control ......................................................................................................  94
2.4.1
  Fan Control ..............................................................................................  94
2.4.2
  Engine Section Parts Operated When the Main Power Switch is Turned ON 95
Chapter 3Troubleshooting3.1
  Overview ............................................................................................................  973.1.1
  Procedure Outline for Troubleshooting ...................................................  97
3.1.2
  Preliminary Check ...................................................................................  97
3.1.3
  Precautions in Performing Troubleshooting Work .................................  98
3.1.4
  Troubleshooting Flowchart .....................................................................  98
3.2
  Jam Display ........................................................................................................  993.2.1
  Checking a paper jam type and jammed location....................................  99
3.2.2
  Sensor layout .........................................................................................  101
3.2.3
  Solution .................................................................................................  102
3.3
  Service Call Error .............................................................................................  1073.3.1
  Error code ..............................................................................................  107
3.3.2
  Solution to Engine-Related Error ..........................................................  113
3.3.3
  Controller Related Error ........................................................................  129
3.3.4
  Other Errors ...........................................................................................  131
3.4
  Power supply trouble ........................................................................................  1343.4.1
  Machine is not energized at all (PU1 operation check).........................  134
3.4.2
  Control panel indicators do not light .....................................................  134
3.4.3
  Fusing Heaters do not operate ...............................................................  135
3.4.4
  Power is not supplied to option .............................................................  135
3.5
  Image quality problem......................................................................................  1363.5.1
  Initial Check Items ................................................................................  136
3.5.2
  Image Trouble List ................................................................................  136
3.5.3
  Solution .................................................................................................  139
Chapter 4DISASSEMBLY AND ASSEMBLY4.1
  Preliminary Check ............................................................................................  1574.1.1
  Tool List ................................................................................................  157
4.1.2
  Parts/Units that Should Not be Disassembled .......................................  157
4.1.3
   How to Read this Chapter ....................................................................  158 
						

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4.2  List of Disassembly/Reassembly Parts/Units ...................................................  1604.3
  Main Unit Disassembly/Reassembly................................................................  1624.3.1
  Group 1 ..................................................................................................  162
4.3.2
  Group 2 ..................................................................................................  169
4.3.3
  Group 3 ..................................................................................................  175
4.3.4
  Group 4 ..................................................................................................  193
4.3.5
  Group 5 ..................................................................................................  198
4.3.6
  Group 6 ..................................................................................................  206
4.3.7
  Group 7 ..................................................................................................  210
4.3.8
  Group 8 ..................................................................................................  221
4.3.9
  Group 9 ..................................................................................................  226
4.3.10
  Group 10 ..............................................................................................  230
4.3.11
  Group 11 ..............................................................................................  246
4.3.12
  Group 12 ..............................................................................................  260
4.3.13
  Group 13 ..............................................................................................  271
4.3.14
  Group 14 ..............................................................................................  275
4.3.15
  Group 15 ..............................................................................................  279
4.3.16
  Group 16 ..............................................................................................  286
4.3.17
  Group 17 ..............................................................................................  291
4.4
  Others ...............................................................................................................  297
Chapter 5ADJUSTMENT5.1
  Adjustment Item ...............................................................................................  314
5.2
  Adjustment .......................................................................................................  3155.2.1
  Skew Adjustment...................................................................................  315
5.2.2
  MP Tray Mechanical Adjustment .........................................................  316
5.2.3
  Reset Life Counter .................................................................................  317
5.2.4
  Writing USB ID .....................................................................................  318
5.3
  Firmware Update ..............................................................................................  320
Chapter 6MAINTENANCE6.1
  Cleaning............................................................................................................  332
Chapter 7APPENDIX7.1
  Connection Diagram.........................................................................................  338
7.2
  Wiring Diagram ................................................................................................  339
7.3
  Connector Layout Drawing ..............................................................................  346
7.4
  Control Panel Special Operations.....................................................................  3477.4.1
  Operation Method & Functions .............................................................  347
7.4.2
  Special Menu .........................................................................................  349
7.5
  Information Sheet .............................................................................................  3527.5.1
  Configuration Status Sheet ....................................................................  352
7.5.2
  Supplies Status Sheet.............................................................................  353
7.5.3
  Usage History Sheet ..............................................................................  354
7.5.4
  Support Status Sheet..............................................................................  355
7.5.5
  Maintenance Status Sheet......................................................................  356
7.5.6
  Error Log Sheet .....................................................................................  363
7.6
  Exploded Diagram / Parts List .........................................................................  364