Epson AcuLaser M2000, AcuLaser M2010 Service Manual

SERVICE MANUAL

A4 monochrome Laser Printer

EPSON AcuLaser M2000D

M2000DN M2010D M2010DN

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.

otherwise, without the prior written permission of SEIKO EPSON CORPORATION.

 This manual contains 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.

Imaging Products CS, PL & Environmental Management

Manual Configuration

Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, would result in injury or loss of life.

This manual consists of the following seven chapters:

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.

CHECK

P O I N T

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.

Symbols Used in this Manual

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.

ADJUSTMENT

REQ U IRED

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.

Safety

Safety-related Symbols

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.

Safety Equipment

 Location of Safety Equipment

Never deactivate the safety equipment installed on the product for any reason whatsoever. (e.g. Making a connection circuit bypasses the safety equipment.)

 List of Safety Equipment

Name Function/Purpose

Interlock switch Shuts off 24 V DC power line when the Top cover is opened.

 Safety System Wiring Schematic

LVPS

Left cooling fan motor

Zero cross signal circuit

Power switch

C input

Fuser heater lamp control circuit

Switching regulator circuit

Interlock switch

+24V1 FAN

ZCROSS

SLEEP

+5V1

+24V2

HEATN

+3.3V1

THERM

Fuser unit

Fuser thermistor

Fuser heater lamp

Fuser thermal cutout

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

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.

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.

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.

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.

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.

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.

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 thinner or alcohol when cleaning the product as it may result in discoloration or deformation.

Revision History

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 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.

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

3.4 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

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

Chapter 5ADJUSTMENT

5.1 Adjustment Item................................................................................................ 141

5.2 Adjustment ........................................................................................................ 142

5.2.1 Writing USB ID. .................................................................................... 142

5.2.2 Updating firmware . ............................................................................... 145

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

PRODUCT DESCRIPTION

CHAPTER

EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

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

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

Interfaces Standard model: Hi-Speed USB 2.0 (1.1

Printer Language ESC/Page (B/W), FX, ESCP2, I239X,

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

Standard Standard model: 32MB

Network model: 64MB

Max. Standard model: 288MB

Network model: 320MB

compatible) and Parallel Port

Network model: Hi-Speed USB 2.0 (1.1 compatible) and Ethernet Port

PCL5e, PCL6, Adobe PostScript3 and PDF1.3

AC 220 ~ 440 V: 50 Hz / 60 Hz

Item Spec.

Power consumption (100V/110V/220-240V)

Noise Printing 53 dB

Storage and transportation conditions Temperature: 0 ~ 35 °C

Life 100,000 pages or five years

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)

Sleep 110 V: 3 W

Stand by 0 W

Standby 30 dB

110 V: 7 W 220 V ~ 240 V: 7 W

220 V ~ 240 V: 3 W

Humidity: 15 ~ 80% RH

OPTIONAL UNIT

Optional paper cassette unit

Capacity: Up to 250 sheets

Paper size: A4, A5, B5, Letter, Executive, LGL 13” (GLG), F4”

PRODUCT DESCRIPTION Product Specifications 4

EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

EXTERNAL VIEW AND PART NAMES

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

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

[Standard model]

Figure 1-1. Front view

[Network model]

Figure 1-2. Rear view

PRODUCT DESCRIPTION Product Specifications 5

EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

Table 1-3. Part Names

No. Name No. Name

1 Fuser unit 3 Developer unit

2 Photoconductor unit 4 Toner cartridge

Figure 1-3. Inside the printer

PRODUCT DESCRIPTION Product Specifications 6

EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

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.

No. 2

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

No. 1

No. 4

Figure 1-4. Dimensions and Weight

Table 1-4. Dimensions and Weight List

No. 3

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.

455mm*

200mm

300mm

500mm

200mm

1,090mm

978mm

300mm

* 655 mm is required when two option feeders are installed.

Figure 1-5. Installation Space Requirements

PRODUCT DESCRIPTION Product Specifications 7

EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

1.1.2 Paper Specifications

SUPPORTED PAPERS

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

Fine quality paper A4, A5, B5, LT, HLT, LGL, GLG, EXE, F4 28 mm 91 ~ 120 g/m

MP tray Standard paper*/Plain paper/Recycled paper A4, A5, B5, LT, HLT, LGL, GLT, GLG, EXE, F4 50 sheets 60 ~ 90 g/m

Fine quality paper A4, A5, B5, LT, HLT, LGL, GLT, GLG, EXE, F4 5 sheets 91 ~ 120 g/m

Special media Transparency A4, LT 5 sheets ---

Postcard Postcard 20 sheets 190 g/m

Label A4, LT 5 sheets ---

Thick paper A4, A5, B5, LT, EXE 5 sheets 121~ 220 g/m

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*

50 sheets 60 ~ 90 g/m

5 sheets 91 ~ 220 g/m

Duplex unit Standard paper*/Plain paper/Recycled paper A4, LT --- 60 ~ 105 g/m

Option Cassette Standard paper*/Plain paper/Recycled paper A4, A5, B5, LT, LGL, GLG, EXE, F4 250 sheets 60 ~ 120 g/m

Fine quality paper A4, A5, B5, LT, LGL, GLG, EXE, F4 28 mm 91 ~ 120 g/m

* : 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.

PRODUCT DESCRIPTION Product Specifications 8

EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

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)

PRODUCT DESCRIPTION Product Specifications 9

EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

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

4.0 mm 4.0 mm

4.0 mm4.0 mm

ENVELOPE ORIENTATION

Envelope Size

Feeding

Direction

↑

DL, C6, Com10, Monarch C5, ISO-B5

POSTCARD ORIENTATION

Postcard type

Feeding

Direction

↑

Postcard Front side printing Postcard Reverse side printing

 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.

Table 1-6. Guaranteed Print Area

PAPER EJECT/CAPACITY

Paper eject Capacity Remarks

Face down 250* sheets 200* sheets for duplex printing.

* : When standard paper (A4) is used.

PRODUCT DESCRIPTION Product Specifications 10

EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

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.

PRODUCT DESCRIPTION Product Specifications 11

EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

1.1.4 Controller Specifications

BASIC SPECIFICATIONS

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)

EXTERNAL INTERFACES

Standard model USB

Parallel

Network model USB

Network 100BaseTX/10BaseT

USB

Parallel

Network

USB

Figure 1-6. External Interfaces

2.0 HS

IEEE1284 compliant

2.0 HS

[Standard model]

[Network model]

PRODUCT DESCRIPTION Product Specifications 12

EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

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

ROM CHECK XXXOXX

RAM CHECK XXOXXX

Unable Clear Error X --- --- --- X ---

Self Test XOXXXX Reset All Δ1

Reset --- --- --- --- --- --Cancel All Print Job Δ1 Δ1 --- X Δ1 --- Cancel Print Job (by panel) Δ1 X --- X Δ1 --- Writing ROM P --- --- --- --- X Δ1 Form Feed X --- --- --- --- Δ1

 Status Sheet  ESC/Page Font Sample  PCL Font Sample

Status

 ESCP2 Font Sample  FX Font Sample  1239X Font Sample  PS3 Status Sheet  PS3 Font List  Engine Status Sheet

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)) --- --- --- --- --- ---

LEDs status

Error

Memory

X X X Δ1 Δ1

X --- --- --- --- Δ1

Toner

Paper

Ready

Data

*1: "xx" indicates remaining time period (minutes).

PRODUCT DESCRIPTION List of Printer Messages 13

EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

Table 1-7. List of Printer Messages

LEDs status

Sort Printer Status

Error

Memory

Toner

Paper

Ready

Reserve Job Canceled X Δ1 --- --- --- --- Form Data Canceled X Δ1 --- --- --- --- Can't Print X Δ1 --- --- --- --- Collate Disabled X Δ1 --- --- --- ---

Warning

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 --- --- ---

*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.

Table 1-7. List of Printer Messages

LEDs status

Sort Printer Status

Data

Service Req Cffff

Error

Memory

Toner

Paper

OOOOOO

Service Req Eggg OXXXOO

Optional RAM Error OOXXX---

Write Error ROM P OOXXX---

Jam WWWW

OXXOX---

Install Imaging Cart OXOXX---

Image Cart ID Error OXOXX--- NonGenuine Toner Δ1

XOXX---

Image Cart R/W Error OXOXX--- Replace Main Unit O Δ2

Δ2 Δ2 X ---

WWWW*3 Open OXXXX---

Error

Install LC1 O X X Δ1 X --- Install LC2 OXXΔ1 X ---

Manual Feed sss

Δ2 X X Δ2 Δ2 ---

Can't Print Duplex Δ1 X X O X ---

Paper Out ttt*5 sss

O X X Δ1 X ---

Replace Toner O X O X X ---

Paper Set ttt*5 sss

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 ---

Data

Ready

PRODUCT DESCRIPTION List of Printer Messages 14

OPERATING PRINCIPLES

CHAPTER

AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

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.

Machine left

Machine inside

Machine right

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.

OPERATING PRINCIPLES Electrical parts layout 16

AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

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.

Machine left

Machine inside

Machine right

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.

OPERATING PRINCIPLES Electrical parts layout 17

AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

OTHER ELECTRICAL COMPONENTS

Figure 2-3. Other electrical components

597

Machine left

Machine inside

Machine right

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.

OPERATING PRINCIPLES Electrical parts layout 18

AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

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

Machine left

Machine inside

Machine right

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.

OPERATING PRINCIPLES Electrical parts layout 19

AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

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.

Drum cover A

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.

Main charger shield

Main charger wire

Main charger

Main charger grid

wire cleaner

Figure 2-6. Main charger unit

Drum cover B

Main charger wire

Zener

PWB

Main charger shield

Main charger grid

Drum

Main charger output

HVPS

Drum Drum shaft

Figure 2-5. Drum section

Figure 2-7. Drum unit and main charger unit block diagram

OPERATING PRINCIPLES Technical Explanation of Print Process 20

AcuLaser M2000D/M2000DN/M2010D/M2010DN Revision B

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.

Polygon motor (mirror)

F-θ lens

LSU shutter

LSU cover

LSU mirror

Pin photo diode

sensor (PD PWB)

Laser diode

(APC PWB)

Callimator

lens

LSU mirror

Cylindrical

lens

Figure 2-9. Laser scanner unit

Polygon motor

(mirror)

PD mirrorSOS lens

F-θ lens

LSU flame

Figure 2-8. Exposure section

OPERATING PRINCIPLES Technical Explanation of Print Process 21

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