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
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AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
OPERATING PRINCIPLES Electrical parts layout 17
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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
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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.
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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.
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Machine inside
Machine left
Machine right
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
OPERATING PRINCIPLES Technical Explanation of Print Process 20
Confidential
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
AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B
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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