Epson ColorPage EPL-C8200 User manual

EPSONColorPage-C8200
Color Laser Printer
SEPG99-003
®


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 re
g
istered trademarks of their
respective owners. EPSON disclaims any and all ri
g
hts in those marks.
Copyri
g
ht © 1999 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
EPSON WARRANTY.

About this manual
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the EPSON EPL-
C8200. 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.
Manual Configuration
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. DISASSEMBLY / ASSEMBLY AND ADJUSTMENT
Describes the step-by-step procedures for
disassemblin
g
/assemblin
g
and adjustin
g
the product.
CHAPTER 4. DIAGNOSTICS
Provides Epson-approved methods for dia
g
nostics.
CHAPTER 5. TROUBLESHOOTING
Provides the step-by-step procedures for
troubleshootin
g
.
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 NOTE, CAUTION, or WARNING
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
NOTE

Abbreviation
ADC = Automatic Density Control
AG = Analo
g
Ground
ASSY = Assembly
AUX. = Auxiliary
B/W = Black and White
BCR = Bias Char
g
e Roll
Bk = Black
BK = Black
BTR = Bias Transfer Roll
BUR = Back Up Roll
C = Cyan
CART. = Cartrid
g
e
CCW = Counterclockwise
CL. = Clutch
CLN = Cleanin
g
(or Cleaner)
CLK = Clock
CONT. = Controller
CR = Char
g
e Roll
CRU = Customer Replaceable Unit
CRUM = CRU Monitor
CW = Clockwise
DB = Developin
g
Bias
DEVE. = Developer
DIAG. = Dia
g
nostic
dpi = dots per inch
DTS = Detach Saw
ELEC. = Electric
EP = Electrophoto
g
raphy
FDR = Feeder
FG = Frame Ground
FRU = Field Replaceable Unit
GND = Ground
H/R = Heat Roll
Hex = Hexadecimal
HVPS = Hi
g
h Volta
g
e Power Supply
I/F = Interface
IBT = Intermediate Belt Transfer
ID = Ima
g
e Density (or Identification)
L = Left
L/H = Left Hand
L/P = Low Paper
LD = Laser Diode
LEF = Lon
g
Ed
g
e Feed
LVPS = Low Volta
g
e Power Supply
M = Ma
g
enta
MAG. = Ma
g
netic
MCU = Machine Control Unit
MECH. = Mechanical
MOT. = Motor
MSI = Multi Sheet Inserter
N/F = Normal Force
N/P = No Paper
NVM = Non Volatile Memory
O/H = Option Hin
g
e
OHP = Overhead Projector
(In this manual, OHP means OHP film)
OPC = Or
g
anic Photo Conductor
P/H = Paper Handlin
g
P/R = Pressure Roll
PCDC = Pixel Count Dispense Control
Pixel = Picture Cell
PPM = Prints Per Minute
PV = Print Volume
PWB = Printed Wirin
g
Board
R = Ri
g
ht
R/H = Ri
g
ht Hand
REGI. = Re
g
istration
ROS = Raster Output Scanner
RTN = Return
SEF = Short Ed
g
e Feed
SG = Si
g
nal Ground
SNR = Sensor
SOL. = Solenoid
SOS = Start Of Scan
SPI = Scans Per Inch
SYNC. = Synchronous
TC = Toner Concentration
TEMP. = Temperature
TR = Transfer
TRANS. = Transport
WDD = Wide Ran
g
e Dynamic Damper
XERO. = Xero
g
raphic
Y = Yellow
YMCBk = Yellow, Ma
g
enta, Cyan, Black

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.
Power Supply
Before startin
g
any service procedure, switch off the printer power 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 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.

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.
The printer has two interlock switches, two safety switches and two
interlock connectors that serve as the main safety mechanism.

Front Cover Switch R
This switch is turned off when the Front Cover Assembly is opened.
It cuts off the power supply (24VDC, 5VDC-LD) from the power
supply unit to stop all operations and disconnects the output (5VDC-
LD) circuit from the power supply and stops the laser beam
emission.
This switch consists of the followin
g
two switches:

A switch that cuts off the power supply (24VDC, 5VDC-LD) to
the control circuits and related parts.

A switch that directly cuts off the power supply circuit (5VDC-LD)
to the laser beam output circuit.

Front Cover Switch L
This is a safety switch. This switch is turned off when the Front
Cover Assembly is opened, causin
g
the printer without control units
to stop operatin
g
.

Top Cover Switch
This is an interlock switch that directly cuts off the power supply
(5VDC-LD) circuit to the laser beam output circuit. This switch is
turned off when the Top Cover Assembly is removed, cuttin
g
off the
output (5VDC-LD) circuit from the power supply unit and stoppin
g
the laser beam emission.
W ARNING
Do not touch the driving part (e.g., gears) while the
assembly (printer) is being driven.


Exit Chute Switch
This switch is a safety switch. This switch is turned off when the Exit
Upper Assembly (the cover on the upper left side of the printer) is
opened.

P/J91 (Connector that connects the Main Harness Assembly and
Re
g
istration Harness Assembly)
This is an interlock connector that cuts off the power supply
(24VDC, 5VDC-LD) to the control circuit and related parts.
This connector is disconnected when the Main P/H Assembly (pull-
out type unit on the ri
g
ht side of the printer) is pulled out, cuttin
g
off
the output (24VDC, 5VDC-LD) from the power supply and stoppin
g
the printer operation without control units.

P/J71 (Connector that connects the Fuser Connector and Fuser
Harness Assembly)
This is an interlock connector that cuts off the power supply
(24VDC, 5VDC-LD) to the control circuit and related parts.
This connector is disconnected when the Fuser Assembly (pull-out
type unit on the left side of the printer) is pulled out, cuttin
g
off the
output (24VDC, 5VDC-LD) from the power supply and stoppin
g
the
printer operation without control units.

Laser Beam
The printer has two interlock switches: the Front Cover Switch R and
the Top Cover Switch. The purpose of these switches is to turn off the
laser beam emission if any of the printer covers have been opened; this
protects the user or service personnel from exposure to the laser beam
from the ROS Assembly.
A laser beam may be emitted durin
g
a maintenance operation. Do not
turn on these interlock switches simultaneously under any
circumstances except in a normal operation.
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.
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.

If you have to activate the printer while pressing the
Front Cover Switch R by hand or with a tool, remove
the Top Cover. (Do not turn on these interlock
switches simultaneously under any circumstances
except in a normal operation.)

Understand how the laser beam functions and take
maximum precautions not to injure yourself or anyone
around you.

High Temperature Assembly
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 power, unplu
g
the power cord and wait until it
cools down.
Parts
To prevent you from becomin
g
injured, keep the followin
g
in mind:

When handlin
g
heavy parts (includin
g
the printer itself), use
g
ood
posture to protect your back whenever you lift, move or place parts.

Be careful not to injure yourself with the sharp ed
g
es of the parts.

Do not work with wet or oily hands-you may drop a part or injure
yourself. Dry your hands first.

When pullin
g
out a part (includin
g
a harness), do not use too much
force. Pull out the part carefully and slowly step by step.
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.
W ARNING
Do not lift, move or place heavy parts in a body posture
that is likely to cause injury to yourself or cause the
part to drop.