Epson AcuLaser C4000 Manuale utente

EPSON AcuLaser C4000

AcuLaser C4100

AcuLaser C3000

Color Laser Page Printer

SEPG01012

SERVICE MANUAL

Notice

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

The contents of this manual are subject to change without notice.

All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would

greatly appreciate being informed of them.

The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences

thereof.

EPSON is a registered trademark of SEIKO EPSON CORPORATION.

General Notice: Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their

respective owners. EPSON disclaims any and all rights in those marks.

Imaging & Information Product Division

CS/Quality Management & PL Department

PRECAUTIONS

Precautionary notations throughout the text are categorized relative to 1) Personal injury and 2) damage to equipment.

DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in

performing procedures preceded by DANGER Headings.

WARNING Signals a precaution which, if ignored, could result in damage to equipment.

The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.

DANGER

1. ALWAYS DISCONNECT THE PRODUCT FROM THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR

PROCEDURES.

2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS

TECHNICIANS IN THEIR LINE OF WORK.

3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO

SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC

COMPONENTS.

4. WHEN DISASSEMBLING OR ASSEMBLING A PRODUCT, BE SURE TO WEAR GLOVES TO AVOID INJURIES FROM METAL PARTS WITH SHARP EDGES.

WARNING

1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN.

2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE

EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.

3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING

PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS.

4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST

STRAPS, WHEN ACCESSING INTERNAL COMPONENTS.

5. DO NOT REPLACE IMPERFECTLY FUNCTIONING COMPONENTS WITH COMPONENTS WHICH ARE NOT MANUFACTURED BY EPSON. IF SECOND

SOURCE IC’S OR OTHER COMPONENTS WHICH HAVE NOT BEEN APPROVED ARE USED, THEY COULD CAUSE DAMAGE TO THE EPSON PRODUCT,

OR COULD VOID THE WARRANTY OFFERED BY EPSON.

About This Manual

This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the EPSON AcuLaser

C4000, AcuLaser C4100 and AcuLaser C3000. The instructions and procedures included herein are intended for the experienced repair technicians,

and attention should be given to the precautions on the preceding page.

Manual Configuration

This manual consists of six chapters and Appendix.

CHAPTER 1. PRODUCT DESCRIPTIONS

Provides a general overview and specifications of the

product.

CHAPTER 2. OPERATING PRINCIPLES

Describes the theory of electrical and mechanical

operations of the product.

CHAPTER 3. TROUBLESHOOTING

Provides the step-by-step procedures for

troubleshooting.

CHAPTER 4. DISASSEMBLY AND ASSEMBLY

Describes the step-by-step procedures for

disassembling/assembling and adjusting the product.

CHAPTER 5 ADJUSTMENT

Provides Epson-approved methods for adjustment.

CHAPTER 6. MAINTENANCE

Provides preventive maintenance procedures and the

lists of Epson-approved lubricants and adhesives

required for servicing the product.

APPENDIX. Provides the following additional information for

reference:

• Connector pin assignments

• Electric circuit boards components layout

• Exploded diagram

• Electrical circuit boards schematics

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 aware of all symbols when

they are used, and always read NOTE, CAUTION, or WARNING

messages.

Indicates an operating or maintenance procedure, practice

or condition that is necessary to keep the product’s quality.

Indicates an operating or maintenance procedure, practice,

or condition that, if not strictly observed, could result in

damage to, or destruction of, equipment.

May indicate an operating or maintenance procedure,

practice or condition that is necessary to accomplish a task

efficiently. It may also provide additional information that is

related to a specific subject, or comment on the results

achieved through a previous action.

Indicates an operating or maintenance procedure, practice

or condition that, if not strictly observed, could result in

injury or loss of life.

Indicates that a particular task must be carried out

according to a certain standard after disassembly and

before re-assembly, otherwise the quality of the

components in question may be adversely affected.

A D J U S T M E N T

R E Q U I R E D

C A U T I O N

CHECK

P O I N T

W ARNING

Abbreviation

This manual uses unique abbreviations and acronyms which may differ from those in common use. Please note that they are used in the manual

descriptions without explanation. The main abbreviations and acronyms are listed below. Because the following list was formed as a general

reference, some items on the list may not appear in this manual.

In principle most acronyms were formed from the capitalized first letters of the English term for the items (there are exceptions) and most single

word abbreviations were formed either will all capitals or with only the first letter as a capital.

[A]

ADC Auto Density Control

ALM Alarm

Assy Assembly

Aux. Auxiliary

[B]

B/W Black and White

BCR Bias Charge Roll

Bk Black

BCR Bias Charge Roll

BRKT Bracket

BTR Bias Transfer Roll

BUR Back Up Roll

[C]

CCyan

CCW Counter Clockwise

Cl. Clutch

Clk Clock

CHK Check

CK Check

Conpane Control Panel

Cont Controller

CR Charge Roll

CRU Customer Replaceable Unit

CRUM CRU Memory

CST Cassette

CVR Cover

CW Clockwise

[D]

DB Developing Bias

Deve Developer

Diag Diagnostic

dpi dots per inch

DTS Detack Saw

Dup Duplex

[E]

Elec Electric

EP Electro Photography

ESS Electric Sub System

[F]

F Front

FDR Feeder

FG Frame Ground

FIP Fault Isolation Procedure

FRU Field Replaceable Unit

FX Fuji Xerox

[G]

GG Guide Gauge

GND Ground

[H]

HHigh

H/R Heat Roll

HCF High Capacity Feeder

HCS High Capacity Stacker

Hex Hexadecimal

HVPS High Voltage Power Supply

[I]

I/F Interface

I/L Interlock

ID Image Density

[J]

Jxx Jack xx

[L]

L Left

L Low

L/H Left Hand

L/P Low Paper

LD Laser Diode

LEF Long Edge Feed

LVPS Low Voltage Power

Supply

[M]

M Magenta

M/N Multi National

Mag Magnetic

MCU Machine Control Unit

Mech Mechanical

MOT Motor

MSI Multi Sheet Inserter

[N]

N/F Normal Force

N/P No Paper

NPS No Paper Sensor

NV Non Volatile

NVM Non Volatile Memory

[O]

OHP Overhead Projector

OPC Organic Photo Conductor

OPT Option

[P]

Pyy Plug yy

P/J Plug and Jack

P/H Paper Handling

P/R Pressure Roll

PL Plate

PLT Plate

PPM Print Per Minute

PV Print Volume

PWB Printed Wiring Board

PWBA PWB Assembly

[R]

R Right

R Rear

R/H Right Hand

RDY Ready

Regi Registration

ROS Raster Output Scanner

RRP Removal and Replacement

Procedure

RTN Return

[S]

SEF Short Edge Feed

SG Signal Ground

SNR Sensor

SNS Sensor

Sol Solenoid

SOS Start Of Scan

SPI Scan Per Inch

STD Stamdard

STK Stacker

STND Standard

SW Switch

Sync Synchronous

[T]

T Tooth (number of Gear)

Temp Temperature

TR Transfer

TTL Trangistor-Transistor Logic

[X]

Xero Xerographic

[Y]

YYellow

YMCBk Yellow/Magenta/Cyan/

Black

YMCK Yellow/Magenta/Cyan/

Black

Safety Information

To prevent accidents during a maintenance procedure, strictly observe

the Warnings and Cautions. Do not do anything that is dangerous or not

within the scope of this document.

Do not do anything that is dangerous even if not specifically described

in this manual. In addition to the descriptions below and those given in

this manual, there are many situations and circumstances that are

dangerous. Be aware of these when you are working with the printer.

Power Supply

Before starting any service procedure, switch off the printer power and

unplug the power cord from the wall outlet. If you must service the

printer when the power is applied, be aware of the potential for electrical

shock and do all tasks by following the procedures in this manual.

Figure 0-1. Power Supply

W ARNING

Do not touch any live part unless you are instructed

to do so by a service procedure.

The LVPS power supply switch/inlet part is live even

when the power switch has been turned off. Do not

touch any live part.

Do not touch electrified components except when

instructions indicate it is permissible to do so.

Mechanical Components

If you service a driving assembly (e.g., gears), first turn off the power

and unplug the power cord. Then manually rotate the assembly.

High Temperature Assembly

To prevent you from becoming injured or burned, do the following:

Before working with a high temperature Assembly (e.g., Fuser

Assembly), turn off the power, unplug the power cord and wait until it

cools down.

W ARNING

Do not touch the driving part (e.g., gears) while the

assembly (printer) is being driven.

W ARNING

The high temperature Assembly is very hot immediately

after any printer operations. Wait at least 40 minutes

before you start working on the printer.

Laser Beam

NOTE: The laser beam has a narrower frequency band and more

coherent phases than any other light (sunlight, electric light).

It has excellent monochromaticity and convergence. A thin

laser beam reaches long distances. Because of its

convergence characteristic, the laser beam converges into

one point, causing high density and high temperature. A

laser beam is harmful to the human body.

NOTE: The laser beam in this printer is invisible.

Figure 0-2. Laser Beam

W ARNING

Do not expose yourself to the laser beam to prevent

injury (blindness).

Do not open the cover that has the laser beam

warning label.

If you disassemble or assemble the printer, turn off

the power.

If you need to work on the printer with power applied,

strictly follow the instructions in this manual.

Understand how the laser beam functions and take

maximum precautions not to injure yourself or

anyone around you.

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