Epson Stylus Color 660 User manual

EPSONStylusCOLOR660
Color ink jet printer
SEJ99005

SERVICE MANUAL
SERVICE MANUALSERVICE MANUAL
SERVICE MANUAL

Notice:
n All rights 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, photocopying, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.
n The contents of this manual are subject to change without notice.
n All effort 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.
n The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for 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 purpose only and may be trademarks or registered trademarks of their
respective owners. EPSON disclaims any and all rights in those marks.
Copyright © 1999 SEIKO EPSON CORPORATION. Printed in Japan.

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 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/maintenance procedures.
DANGER
1. ALWAYS DISCONNECT THE PRODUCT FROM THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE
OR REPAIR PROCEDURES.
2. NOWORK 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.

PREFACE
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of Stylus COLOR 660.
The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions
on the preceding page. The chapters are organized as follows:
CHAPTER 1. PRODUCT DESCRIPTIONS
Provides a general 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 troubleshooting.
CHAPTER 4. DISASSEMBLY AND ASSEMBLY
Describes the step-by-step procedures for disassembling and assembling 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 servicing the product.
CHAPTER 7. APPENDIX
Provides the following additional information for reference:
• EEPROM Address Map
• Connector Pin Assignments
• Circuit Diagram

Revision Status
Revision Issued Date Description
A August 25, 1999 First Release

CHAPTER
1
PRODUCTDESCRIPTION

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1.1 FEATURES
EPSON Stylus Color 660/660 are designed for PC users at home
and low price for hat high performance. Also, Stylus Color 440 printer
has the same high color print quality (720 X 720dpi) as Stylus ProXL,
and
Stylus Color 640,740,660 have the same high color print
quality (1440 X 720) as Stylus Color 600 and Stylus Pro 5000. The
major printer features are;
o High color print quality
n 720 (H) x 720 (V) dpi printing (for Stylus Color 440)
n 1440 (H) X 720 (V) dpi printing (for Stylus Color 640, 660, 740)
n 4 color printing (YMCK)
n Traditional and New Microwave
n Black 64 nozzles, CMY 21 nozzles (for Stylus Color 440)
n Black 64 nozzles, CMY 32/color nozzles (for Stylus Color 640,
660)
n Black 144 nozzles, CMY 48/color nozzles (for Stylus Color 740)
o Built-in auto sheet feeder
n Holds 100 cut-sheets (64g/m2)
n Holds 10 envelopes
n Holds 30 transparency films
n Holds 65 special papers
o High-speed print
n 200 cps (for Stylus Color 440, 740)
n Normal 200 cps, Draft 400 cps (only for Stylus Color 640, 660)
n By using head drive frequency 14.4KHz, printing speed is twice
faster than Stylus Color.
o Compact size
n 429mm (W) x 231mm (D) x 155mm (H) (for Stylus Color 440)
n 429mm (W) x 231mm (D) x 157mm (H) (for Stylus Color 640,
660)
n 429mm (W) x 261mm (D) x 157mm (H) (for Stylus Color 740)
n Weight: 5.2Kg (for 3 models)
o Acoustic noise
n Approximately 45 dB (for Stylus Color 440)
n Approximately 47 dB (for Stylus Color 640, 660, 740)
o Interface
n Bi-directional parallel I/F IEEE-1284 level 1 device (for 3
models)
n Mac serial I/F up to approx. 1800 kbps (only for Stylus Color
740)
n USB (only for Stylus Color 740)
o One unit combined black and CMY head
o Windows exclusive (for Stylus Color 440, 640, 660)
o Standard, NLSP, 5 Scaleable fonts (only for Stylus Color 740)
o Stylus Color 660 is the reflesh version based on Stylus
Color 640. The differen e points are as follows;
n Following EEPROM Datas
Address Data
*02H: 03H
*72H: 36H
*73H: 36H
*74H: 30H

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See the Table A-20 to A-26 for EEPROM address map of
EPSON Stylus Color 440/640/740 Servi e Manual.
The rest contents of Product Description is the same as of EPSON
Stylus Color 640/660/740.

CHAPTER
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OPERATINGPRINCIPLES

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The contents of Operating Principles is the same as of EPSON Stylus
Color 640/660/740.