Epson Stylus Color 400 Service Manual

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EPSON
EPSON Stylus Color 400
SERVICE MANUAL
COLOR INK-JET PRINTER
SEIKO EPSON CORPORATION
4007366
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NOTICE
without SEIKO EPSON’s express written permission is forbidden. The contents of this manual are subjects 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 f or 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 purposes only and may be trademarks or registered trademarks of their respective companies.
Copyright  1997 by SEIKO EPSON CORPORATION Nagano, Japan
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PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1) personal injury and 2) damage to equipment.
WARNING
CAUTION
The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.
Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by WARNING Headings. Signals a precaution which, if ignored, could result in damage to equipment.
WARNING
1. ALWAYS DISCONNECT THE PRODUCT FROM BOTH 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 CO NNECTED, USE EXT REME CAUT ION IN W O RKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.
CAUTION
1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED O NLY BY EPSON CERTIFIED REPAIR TECHNICIAN.
2. MAKE CERTAIN THAT T HE SOURCE VOLT AGE IS THE SAME AS T HE RATED VOLT AGE, 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 T HE EPSON PRODUCT HAS BEEN DISCONNECT ED 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.
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PREFACE
This manual descr ibes functions , theory of electrical and m echanical operations , maintenanc e, and repair of EPSON Stylus Color 400. The instructions and procedur es included herein are intended for the experience r epair technician, and attention should be given to die 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. ADJUSTMENT
Includes a step-by-step guide for adjustment.
CHAPTER 5. TROUBLESHOOTING
Provides EPSON-approved techniques for troubleshooting.
CHAPTER 6. MAINTENANCE
Describes preventive maintenance techniques and lists lubricants and adhesives required to service the equipment.
APPENDIX
Describes connector pin assignments, circuit diagrams, circuit board component layout and exploded diagram.
The contents of this manual are subject to change without notice.
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REVISION SHEET
Revision Issued Data Contents
Rev. A February18. 1997 First issue
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TABLE OF CONTENTS
CHAPTER 1. GENERAL DESCRIPTION CHAPTER 2. OPERATING PRINCIPLES CHAPTER 3. DISASSEMBLY AND ASSEMBLY CHAPTER 4. ADJUSTMENT CHAPTER 5. TROUBLESHOOTING CHAPTER 6. MAINTENANCE APPENDIX
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EPSON OVERSEAS MARKETING LOCATIONS
EPSON AMERICA, Inc.
20770 Madrona Avenue, P.O. Box 2842 Torrance, CA 90509-2842 Phone: (800)922-8911 Fax: (310)782-5220
EPSON UK LTD.
Campus 100, Maylands Avenue, Hemel Hempstead, Herts, HP2 7TJ U.K. Phone: (+44)01442-61144 Fax: (+44)01442-227227
EPSON IBERICA, S.A.
Avda. de Roma, 18-26 08290 Cerdanyola del Valles Balcerona, Spain Phone: 582.15.00 Fax: 582.15.55
EPSON AUSTRALIA PTY. LIMITED
1/70 Gibbes Street, Chatswood 2067 NSW Australia Phone: 2-9903-9000 Fax: 2-9903-9177
EPSON HONG KONG LTD.
Rooms 4706-10, 47/F China Resource Bldg. 26 Harbour Road, Wanchai, Hong Kong Phone: 2585-4300 Fax: 2827-7083
EPSON PORTUGAL, S.A.
EPSON DEUTCHLAND GmBH
Zülpicher Straße 6, 4549 Düsseldorf Germany
Phone: (0211)56030 Telex: 8584786
EPSON FRANCE S.A.
68 bis, rue Marjolin 92300, Levallois-Perret France Phone: (1)4087-3737 Telex: 610657
EPSON ITALIA S.P.A.
V. le F. lli Casiraghi, 427 20099 Sesto S. Giovanni MI Italy Phone: 2-262331 Fax: 2-2440750
EPSON SINGAPORE PTE. LTD.
No.1 Temasek Avenue #36-00 Millenia Tower Singapore 039192 Phone: (065)3377911 Fax: (065)3341185
EPSON TAIWAN TECHNOLOGY & TRADING LTD.
10F, No. 287 Nonking E. Road, Sec. 3, Taipei, Taiwan, R.O.C. Phone: (02)717-7360 Fax: (02)712-9164
R. do Progresso, 471, 1° Perafita 4460 Matosinhos, Portugal
Phone: (02)996 14 02 Fax: (02)996 14 11
SEIKO EPSON CORPORATION Imaging & Information Products Division
80 Harashinden, Hirooka, Shiojiri-Shi, Nagano-Ken 399-07 JAPAN Phone: 0263-52-2552 Fax: 0263-54-4007
As of September, 1996
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EPSON
SEIKO EPSON CORPORATION
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