Epson EPL-N1600 Option User manual

EPSONEPL-N1600
A4 Network Laser Printer
4009770
®


Notice

All ri
g
hts 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, photocopyin
g
, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.

All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would
g
reatly appreciate bein
g
informed of them.

The contents of this manual are subject to chan
g
e 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
g
reatly appreciate bein
g
informed of them.

The above not withstandin
g
SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences
thereof.
EPSON is a re
g
istered 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.
Copyri
g
ht © 1998 SEIKO EPSON CORPORATION. Printed in Japan.

PRECAUTIONS
Precautionary notations throu
g
hout the text are cate
g
orized relative to 1)Personal injury and 2) dama
g
e to equipment.
DANGER
Si
g
nals a precaution which, if i
g
nored, could result in serious or fatal personal injury. Great caution should be exercised in
performin
g
procedures preceded by DANGER Headin
g
s.
WARNING
Si
g
nals a precaution which, if i
g
nored, could result in dama
g
e to equipment.
The precautionary measures itemized below should always be observed when performin
g
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.
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. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY THE MANUFACTURE; INTRODUCTION OF
SECOND-SOURCE ICs OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE
1. EPSON WARRANTY.

About This Manual
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of EPL-N1600. The
instructions and procedures included herein are intended for the experienced repair technicians, and attention should be
g
iven to the precautions on
the precedin
g
pa
g
e.
Contents
This manual consists of six chapters and Appendix.
CHAPTER 1. PRODUCT DESCRIPTIONS
Provides a
g
eneral 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
troubleshootin
g
.
CHAPTER 4. DISASSEMBLY AND ASSEMBLY
Describes the step-by-step procedures for
disassemblin
g
and assemblin
g
the product.
CHAPTER 5. ADJUSTMENTS
Provides Epson-approved methods for adjustment.
CHAPTER 6. MAINTENANCE
Provides preventive maintenance procedures and the
lists of Epson-approved lubricants and adhesives
required for servicin
g
the product.
APPENDIX Provides the followin
g
additional information for
reference:
• Connector pin assi
g
nments
• Electric circuit boards components layout
• Exploded dia
g
ram
• Electrical circuit boards schematics
Symbols Used in This Manual
Various symbols are used throu
g
hout this manual either to provide
additional information on a specific topic or to warn of possible dan
g
er
present durin
g
a procedure or an action. Be aware of all symbols when
they are used, and always read WARNING, CAUTION or NOTE
messa
g
es.
Indicates an operatin
g
or maintenance procedure, practice
or condition that, if not strictly observed, could result in
injury or loss of life.
Indicates an operatin
g
or maintenance procedure, practice,
or condition that, if not strictly observed, could result in
dama
g
e to, or destruction of, equipment.
May indicate an operatin
g
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 throu
g
h a previous action.
W ARNING
CAUTIO N
CHECK
PO INT

Safety Information
To prevent accidents durin
g
a maintenance procedure, strictly observe
the Warnin
g
s and Cautions. Do not do anythin
g
that is dan
g
erous or not
within the scope of this document.
Do not do anythin
g
that is dan
g
erous even if not specifically described
in this manual. In addition to the descriptions below and those
g
iven in
this manual, there are many situations and circumstances that are
dan
g
erous. Be aware of these when you are workin
g
with the printer.
Safety Precautions
POWER SUPPLY AND ELECTRICAL COMPONENTS
Before startin
g
any service procedure, turn off the printer and unplu
g
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 followin
g
the procedures in this manual.
W ARNING
Do not touch electrical components on the HPS unless
you are instructed to do so by a service procedure.

MECHANICAL COMPONENTS
If you service a drivin
g
assembly (e.
g
.,
g
ears), first turn off the power
and unplu
g
the power cord. Then manually rotate the assembly.
Safety Components
The printer is equipped with safety components (e.
g
., interlock
switches, fuses, thermostat) and safety switches for protectin
g
users
and service personnel from injury and the equipment from dama
g
e.

Interlock Switch
The interlock switch opens to interrupt +24VDC and +5V-LD (Laser
diode drive) from the power supply circuit (HPS) to the controller
circuit (C258MAIN) when the Cover Assy. Exit is open.
Do not touch the driving part (e.g., gears) while the
assembly (printer) is being driven.
W ARNING

Warning/Caution Labels
WARNING and CAUTION labels are stuck on dan
g
erous parts in the
printer to make you aware of the potential dan
g
ers that are present
when you are workin
g
with those parts.
ROS ASSY.
The laser beam used in this printer is invisible and it has a narrower
frequency band and more coherent phases than any other li
g
ht
(sunli
g
ht, electric li
g
ht). It has excellent monochromaticity and
conver
g
ence. A thin laser beam reaches lon
g
distances. Because of its
conver
g
ence characteristic, the laser beam conver
g
es into one point,
causin
g
hi
g
h density and hi
g
h temperature. A laser beam is harmful to
the human body.
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.

FUSER ASSY.
To prevent you from becomin
g
injured or burned, do the followin
g
before workin
g
with a hi
g
h temperature Assembly (e.
g
., Fuser
Assembly):

turn off the printer.

Unplu
g
the power cord.

Wait until it cools down.
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.

General Cautions

Some materials (e.
g
., Developer or Fuser Oil) may cause bodily
injury. Do not swallow or inhale these materials or allow them to
come in contact with the eyes.

Help to protect those around you and follow the prohibitions a
g
ainst
swallowin
g
or inhalin
g
those materials. Be careful to protect the
eyes at all times.

Place a sheet under the printer so that the floor or workbench is
protected.

Revision Status
Revision Issued Date Description
Rev. 0 Au
g
ust 17, 1998 Preliminar
y
release. (intended for service trainin
g
purpose onl
y
)
Rev. A October 30, 1998 First issue.