EPSON STY-COL 700-EX Service Manual

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EPSON Stylus Color 700
EPSON Stylus Color EX

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4008847

NOTICE

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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.

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

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All effort have been made to ensure the accuracy of the contents of this manual. However,
should any errors be deteced, SEIKO EPSON would greatly appreciate being informed of
them.

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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 © 1996 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

WARNING

The precautionary measures itemized below should always be observed when performing
repair/maintenance procedures.

Signals a precaution which, if ignored, could r esult in serious or fatal personal injury.
Great caution should be exercised in performing procedures preceded by DANGER
Headings.

Signals a precaution which, if ignored, could result in damage to equipment.

DANGER

1. ALWAYS DISCONNECT THE PRODUCT FROM THE POW ER SOURCE AND PERIPHERAL
DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURES.

2. NOWORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIER 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 T HE SERIAL NUMBER/RATING PLATE. I F THE EPSON PRODUCT
HAS A PRIMARY AC RATING DIFFERENT FROM AVAI LABLE POW ER 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 EPSON Stylus Photo 700 and EPSON Stylus Photo EX.
The instructions and procedures included herein are intended for the experienced repair
technicians, and attention should be given to the precautions on the pr eceding pag e. The chapt ers
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.

APPENDIX

Provides the following additional information for reference:

• Connector pin assignments

• Electric circuit boards components layout

• Exploded diagram

• Electrical circuit boards schematics

REVISION STATUS

Rev. Date Page(s) Contents

A 1998/01/14 All First release

TABLE OF CONTENTS

PRODUCT DESCRIPTIONS

1.1 OVERVIEW ..........................................................................................1-1

1.1.1 Features......................................................................................................... 1-1

OPERATING PRINCIPLES

2.1 OVERVIEW ..........................................................................................2-1

2.1.1 Printer Mechanism ....................................................................................... 2-1

2.1.1.1 Printhead Unit ..................................................................................... 2-1

2.1.2 Electrical Circuit........................................................................................... 2-3

DISASSEMBLY AND ASSEMBLY

3.1 OVERVIEW ..........................................................................................3-1

3.1.1 C233MAIN board removal for EPSON Stylus Photo 700 ........................... 3-1

3.1.2 Caution for removing Printhead on EPSON Stylus Photo 700 ................. 3-2

ADJUSTMENT

4.1 OVERVIEW ..........................................................................................4-1

4.1.1 Printhead ID Input......................................................................................... 4-1

TROUBLESHOOTINGS
MAINTENANCE

6.1 OVERVIEW ..........................................................................................6-1

6.1.1 Lubrication.................................................................................................... 6-1

APPENDIX

7.1 OVERVIEW ..........................................................................................7-1

7.1.1 Connector Pin Assignment.......................................................................... 7-1

7.2 CIRCUIT DIAGRAM .............................................................................7-3

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PRODUCT DESCRIPTIONS

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EPSON Stylus Photo 700/EX Service Manual

Chapter 1 Product Descriptions

1.1 OVERVIEW

EPSON Stylus Photo 700 and EPSON Stylus Photo EX are photo-quality color printers developed
based on EPSON Stylus Photo. Since most of functionality and operations of these printers are
the same with EPSON Stylus Photo, this manual only describes the difference, and any other
information not described in this manual should be referred to EPSON Stylus Photo service
manual.

1.1.1 Features

The main feature and the specification of EPSON Stylus Photo 700 and EPSON Stylus Photo EX
are as follows:

Table 1-1. Feature Comparison

Features EPSON

Stylus Photo 700

Acceptable Paper Size Up to A4/LTR/LGL Up to A3/B4

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Print Resolution (Max.) 1440 x 720 dpi

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Ink Droplet size

Printhead

Ink cartridge Black: S020093
Serial I/F Baud rate

(Mac Serial / RS-423)
Electrical Circuit Boards

Normal dot

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Super-micro dot

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One-Chip Head
(Black+Color)

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32 nozzle / color
(90dpi)

Color: S020110
Up to 1.8Mbps
*1

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Main
C233MAIN

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Power supply
C206PSB/PSE

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Control panel
C209PNL

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Up to 900Kbps

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EPSON

Stylus Photo EX

A3(297x420mm)
B4(257x364mm)

Õ

Normal dot
Micro dot
Super-micro dot
One-Chip Head
(Black+Color)
32 nozzle / color
(90dpi)

Õ Õ

Main
C231MAIN
Power supply
C206PSB/PSE
Control panel
C206PNL

EPSON

Stylus Photo

Up to A4/LTR/LGL

720 x 720 dpi

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Normal dot

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Micro dot

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One-Chip Head
(Black+Color)

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32 nozzle / color
(90dpi)

Õ

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Main
C209MAIN

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Power supply
C206PSB/PSE

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Control panel
C209PNL

Note) *1: Applicable cable is Apple Mini-DIN 8-pin system peripheral-8 cable (#M0197LL/B).

Rev. A

1-1