Service Manuals, User Guides, Schematic Diagrams or docs for : epson printer Epson LQ-860 LQ-1060 Service Manual

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>> Download Epson LQ-860 LQ-1060 Service Manual documenatation <<

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  EPSON TERMINAL PRINTER


LQ-860/1060
 TECHNICAL MANUAL
                                    NOTICE
` All 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 subject to change without notice.
" All efforts 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 notwithstanding SEIKO EPSON can assume no responsibility for any
   errors in this manual or the consequences thereof.

                            @ Copyright 1989 by SEIKO EPSON CORPORATION
                               Nagano, Japan


                                     -i-
                                                                                                  REV.-A

                                       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
                    a 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/main-
tenance procedures.


                                            DANGER
       1. ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND THE
          HOST COMPUTER BEFORE PERFORMING ANY MAINTENANCE OR REPAIR
          PROCEDURE.
       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 VOLTAGE IS THE SAME AS THE RATED
         VOLTAGE, LISTED ON THE SE:RIAL NUMBER/RATING PLATE. IF THE EPSON PROD-
          UCT HAS A PRIMARY-AC RATING DIFFERENT FROM THE 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 pP CHIPS AND CIRCUITRY, USE STATIC
         DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESS-
         ING INTERNAL COMPONENTS.
      5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS
         RECOMMENDED BY THE MANUFACTURER; INTRODUCTION OF SECOND-SOURCE
         ICS OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND
         VOID ANY APPLICABLE EPSC)N WARRANTY.




                                                - ii -
                                                                             REV.-A




                           PREFACE
This manual describes functions, theory of electrical and mechanical
operations, maintenance, and repair of the LQ-860/l 060.
The instructions and procedures included herein are intended for the
experienced repair technician, and attention should be given to the
precautions on the preceding page. The chapters are organized as follows:


Chapter 1 -     Provides a general product overview, lists specifications,
               and illustrates the main components of the printer.


Chapter 2 -    Describes the theory of printer operation.


Chapter 3 -    Discusses the options


Chapter 4 -    Includes a step-by-step guide for product disassembly,
               assembly, and adjustment.


Chapter 5 -    Provides Epson-approved techniques for troubleshooting.


Chapter 6 -    Describes preventive maintenance techniques and lists
               lubricants and adhesives required to service the equipment.



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




                                 - iv -
              REVISION TABLE
REVISION   DATE ISSUED
                          I   CHANGE DOCUMENT   I
                          I       1st issue     I



=)=




                    -v-
REV.-A

                    TABLE OF CONTENTS
     CHAPTER   1.   GENERAL    DESCRIPTION
     CHAPTER   2.   OPERATING   PRINCIPLES
     CHAPTER   3.   OPTIONAL    EQUIPMENTS
     CHAPTER   4.   DISASSEMBLY, ASSEMBLY, A N D   ADJUSTMENT
     CHAPTER 5.     TROUBLESHOOTING
     CHAPTER 6.     MAINTENANCE
     APPENDIX




                                   - vi 

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