Epson C11C605001 - DFX 9000 B/W Dot-matrix Printer User manual

EPSON TERMINAL PRINTER
EPL-9000
SERVICE MANUAL
EPSON

NOTICE
AN rights reserved. Reproduction of any part of this manual in any form whatsoever without
SEIKO
EPSON’S express written permission is forbidden.
The contents of this manual are
subjcxts to change without notice.
All efforts have been made toensuretheaccuracyof the contents of this manual. However, should
any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.
The above notwithstanding SEIKO EPSON can assume no responsibility for any errors in this
manual or the consequence thereof.
Epson and Epson ESCPare registered trademarks and Epson
ESCP2 isa tradernarkof Seiko Epson
Corporation.
Speedo, Fontware, FaceLift, Swiss, and Dutch are trademarks of BitStream Inc.
CG Times and CG Omega are registered trademarks of Miles, Inc.
Univers is a registered trademark of Linotype AG and / or its subsidiaries.
Antique Olive is a trademark of Fonderie Olive.
Albertus is a trademark of Monotype Corporation
plc.
Coronet is a trademark of Ludlow Industries (UK) Ltd.
Arial and Times New Roman are registered trademarks of Monotype Corporation plc.
GeneraZNotice: Other product mrnes used herein are for identication purposes only and maybe
trademarks of their respective
carnpanies.
Copyright @ 1994 by SEIKO EPSON CORPORATION Nagano, Japan
-i-

PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1) personal injury and 2)
damage to equipment.
DAIVGIER 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.
WAWW4G Signals a precaution which, if ignored, could result in damage to equipment.
The precautionary measures itemized below should always be observed whenperforrning repair/
maintenance procedures.
1.
2.
3.
1.
2.
3.
4.
5.
DANGER
ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND
PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCE-
DURE.
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.
WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT
CONNECT THE UNITTOA 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
REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON
CERTIFIED REPAIR TECHNICIAN.
MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLT-
AGE, LISTED ON THE
SEIUAL 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.
ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM
THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT
BOARDS AND/OR INDIVIDUAL CHIPS.
IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE
STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN
ACCESSING INTERNAL COMPONENTS.
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.
- ii -

SAFETY INFORMATION
‘lhis printer is a page printer which operates by means of a laser. There is no possibility of danger from
the laser, provided the printer is operated accordrng to the instructions in this manual provided.
Since radiation emitted by the
laser is completely confined within protective housings, the laser beam
cannot escape from the machine during any phase of user operation.
For Europe
Usem;
r-”-”””-”-- ‘ofp-w=otiel
WARNING: Use of controls, adjustments or performan
than those sm?cified in this manual rnavresult in hazardous radlationexoosure
This is a semiconductor laser. The maximum power of the laser diode is 5 m~
and the wavelength is 780 nm.
For Denmark Usem;
ADVARSEL
Usynlig Iaserstri?ding ved iibnin~ n~r sikkerhedsafbrydere er ude af funktion.
Undg5 uds~telse for strWng.
Klasse 1 laser produkt der opfylder IEC825 sikkerheds kravene.
I
For Finland, Sweden Users;
VAROITUS
Laitteen lciiyttlhinen muulla kuin t.iis.sii k@t60hjeessa
rnainitulla tavalla mat
taa altistaa kayttajan turvallisuusluokan 1 ylittavalle nakymattomalI[
Ia.sersiiteivlle.
VARMNG
Orn apparaten anviinds pi% annat siitt iin i denna bruksanvisnin
g specificerats,
kan anv~dam utsiittas K5r osyrdig Iaserstr&nin& som Wdcrider griinsen
for laser klass 1.
For Finland, Sweden Service People
VAROITUS
Avattaessa
ja suojalukitus ohitettaessa olet alttiina niikymiittonulille laser
siiteilvlle. Ala katso siiteeseen.
VARNING
7
-g laserstriilning niir denna del &oppnad och sparren ar Urkopplad
~Betrakta ej stxfden.
I
*..
‘,
L.’
. . .
- Ill -

ADVARSEL
Dersom apparatet brukes pa annen rn&e enn spesifisert i denne bruksan-
visning, kan bmkeren utsettes for unsynlig laserstn!ding som overskrider
grensen for laser klasse 1.
Dette er en halvleder laser. Maksimal effeckt til Iaserdiode er 5 mW og brd-
gelengde er 780 nm.
Laser Safety Labels
[Label
on rear printer case]
A laser safety labels is attached on the outside of the printer shown below.
For Europe
lllh-
r -
I
IASER MASSE 1 NACH IEC 825
CIJLSS 1 IJ$SER PRODUCT TO IEC 825
KIA!3SE 1 IJiSER PRODUKT I.H.T. IEC 825
LUOKAN 1 IASER14TE 1
-iv -

[Label inside printer]
The following laser safety label will be attached inside the printer as shown below.
For Danmark, finland, Swadan, and Norway
km
rkll~t: ~1 4 i 9-07 ~ t .Rf.hl: 7 * ~~~~~~ -+f-~* * Qtf ~ f.
i$lstm+nkils!! +l=mvctm WE? tttit~: t.
*
DANGm
INVISISIIE IASERJIAOW_WEN OPEN AND1NTERLOCK5 D6FEATED.
AvOIOEXP05URE T08EAM
~UTION
NEV018LE LASMTFWXA7WNWWEN OPEN AND INTERLOCKS DE fEATEO.
AVLNO EXPOSURE TOMAM.
CLASS 3B
780nm
PREOWCldN RAOIAC16N LA5tRlCAlW0181E C1.1AN005E ABRA~ANuLE EL INTERBLOQLIE13
5mWmax
EV17E IA EXPOSIC16N DIREmAAL HAZ.
VARNING OSYNLIG LAS fRSTRALNING NARDENNA DEL ARoWNADOCH
SPARRARARUIWWEADE~ 5TRALEN AR FARL!G.
AOVARSEL uSYNLIGLASERSTR~
LING N~RDEKSELkWESOG SIKKERHETsLAS 8RYTES. UNNG~
EKSPONERING FoRSTRALEN.
AOVERSEL USYNLIGLASERSTRAL[* VEDA8NING. NAR
SIKKERHEO$AF8RYDERE ERUDEAF FUNUTION.
UNDGAUOSATTELSC FOR$TRALING.
VARO! NFWYNEAToN AVA~A6w JA SUOIALUKITU5 OHITE1TAES5A OLEIALTTIINA
LASERSAIEILYLLE Ati=rSo sArEE5EN.
VORSICHT! UNSICH18ARE
LASERSTIL4HLUNG, wENNABDECKUNG GEo6pNET UND
SICHERHEITSVERRIEGEIUNG CIBERLTRUCK?. NICHTIN OERSTRAHL BLICKEN.
ATTENTION EMISSION DE RAOIATION
USER lNVf118Lf QUANOL’AppAREIL ES70UWRTETLOR$QUE LA
StCURITt EST NEUTRALIStE. WIIERDE S’EXPOSERAU RAYON LASER.
c
~:.:>.l
.= -./,’
-v-

PREFACE
This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair
of EPL-9000.
The instructions and procedures included herein are intended for the experience repair technician, and
attention should be given to the precautions on the preceding page. The chapters are organized as
follows:
CHAPTER 1. GENERAL DESCRIPTION
Provides a general product overview, lists specifications, and illustrates the main components of the printer.
CHAPTER 2. OPERATING PRINCIPLES
Describes the theory of printer operation.
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
Includes a step-by-step guide for product disassembly and assembly.
CHAPTER 4. ADJUSTMENTS
Includes a step-by-step guide for adjustment.
CHAPTER 5. TROUBLESHOOTING
Provides Epson-approved techniques for adjustment.
CHAPTER 6. MAINTENANCE
Describes preventive maintenance techniques to service the equipment.
APPENDIX
Describes connector pin assignments, circuit diagrams, circuit board component layout.
The contents of this manual are subject to change without notice.
-vi -

REVISION SHEET
Revision Isaue
Date
Rev. A
I
Augusl 5, 1994
Revision Page
I
1s issue
I
c
:’
. . . .
c“
,, . . . .
[. “
~..-
- vii -

TABLE OF CONTENTS
CHAPTER 1.
CHAPTER 2.
CHAPTER 3.
CHAPTER 4.
CHAPTER 5.
CHAPTER 6.
APPENDIX
GENERAL DESCRIPTION
OPERATING PRINCIPLES
DISASSEMBLY AND ASSEMBLY
ADJUSTMENTS
TROUBLESHOOTING
MAINTENANCE
.m.
- Vlll -

Chapter 1 General Description
Table of Contents
1.1 FEATURES
1-1
1.2 SPECIFICATIONS
1-3
1.2.1
1.2.2
1.2.3
1.2.4
1.2.5
1.2.6
1.2.7
1.2.8
1.2.9
Basic Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Electrical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Reliability Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Environmental Conditions for Operation (Including Imaging Cartridge). . 1-6
Environmental Conditions for Storage and Transportation . . . . . . . . . . . 1-6
Applicable Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Specification for Consumable (Imaging Cartridge) . . . . . . . . . . . . . . . . . 1-7
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Software Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.3 INTERFACE SPECIFICATIONS
1-11
1.3.1 Parallel interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
1.3.1.1 Compatibility Mode of Parallel lntetface. . . . . . . . . . . . . . . . . . 1-11
1.3.1.2 Reverse Mode.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
1.3.2 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
1.3.3 Optional LocalTalk Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-19
1.4
OPERATING INSTRUCTIONS
1-20
1.4.1 Control Panel.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
1.4.2 SelecType Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
1.4.3 Sewice Mode.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
1.4.3.1 Hexadecimal Dump Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
1.4.3.2 Language Setting Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
1.4.3.3 Factory Service Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
1.4.3.4 EEPROM Format Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
1.4.4 Display ofMessages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
1.4.4.1 Status Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
1.4.4.2 Error Messages.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
1.4.4.3 Warning Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28
1.4.5 PrinterSharing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
1.4.5.1 Port Fixed Mode.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
1.4.5.2 AutoSense Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30
1.4.6 Emulation Mode Switch Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31
1.4.6.1 Emulation Switch by SPL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31
1.4.6.2 Intelligent Emulation Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31
1.4.7 Bi Resolution Improvement Technology . . . . . . . . . . . . . . . . . . . . . . . . 1-32
1.4.8 Optional Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33
1.5 MAIN COMPONENTS
1-34
1.5.1
1.5.2
1.5.3
1.5.4
1.5.5
1.5.6
1.5.7
C135 MAIN Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35
C82326* l/F Board (Optional LocalTalk Module). . . . . . . . . . . . . . . . . 1-36
Control panel... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36
MCU PWB Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37
LVPS Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37
HVPS Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38
ROS Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38