Epson Stylus Color 300 User manual

EPSON TERMINAL PRINTER

EPSON Stylus Color 300

SERVICE MANUAL

EPSON

4007996

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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.



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



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.



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.

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 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 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 EPSON Stylus Color 300. 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.

APPENDIX

Provides the following additional information for reference:

• Connector pin assignments

• Electric circuit boards components layout

• Exploded diagram

• Electrical circuit boards schematics

REVISION SHEET

Revision Issued Contents

A July 2, 1997 First issue

TABLE OF CONTENTS

CHAPTER 1.PRODUCT DESCRIPTIONS

CHAPTER 2.OPERATION PRINCIPLES

CHAPTER 3.DISASSEMBLY AND ASSEMBLY

CHAPTER 4.ADJUSTMENT

CHAPTER 5.TROUBLESHOOTING

CHAPTER 6.MAINTENANCE

APPENDIX

CHAPTER 1

PRODUCT DESCRIPTIONS

1.1 FEATURES ...................................................................................... 1-1

1.2 SPECIFICATIONS ........................................................................... 1-2

1.2.1 Printing Specifications.......................................................... 1-2

1.2.2 Software Specifications........................................................ 1-3

1.2.3 Paper Handling ...................................................................... 1-4

1.2.4 Paper Specifications ............................................................. 1-4

1.2.5 Printable Area ........................................................................ 1-6

1.2.6 PG Adjust Lever Setting........................................................ 1-7

1.2.7 Paper Select Lever Setting ................................................... 1-7

1.2.8 Ink Cartridge Specification................................................... 1-8

1.2.9 Electrical Specifications ....................................................... 1-9

1.2.10 Environmental Conditions.................................................. 1-9

1.2.11 Reliability............................................................................ 1-10

1.2.12 Acoustic Noise................................................................... 1-10

1.2.13 Safety Approvals................................................................ 1-10

1.2.14 CE Marking......................................................................... 1-10

1.2.15 Physical Specifications..................................................... 1-11

1.3 INTERFACE SPECIFICATION......................................................1-12

1.4 OPERATIONS................................................................................ 1-12

1.4.1 Control Panel ....................................................................... 1-12

1.4.1.1 Buttons.......................................................................1-12

1.4.1.2 LED Indicators ........................................................... 1-14

1.5 MAIN COMPONENTS ................................................................... 1-15

1.5.1 Printer Mechanism .............................................................. 1-15

1.5.2 Main Control Board (C224 MAIN Board)............................1-15

1.5.3 Power Supply Unit (C160 PSB/PSE Board)....................... 1-15

1.5.4 Housing ................................................................................ 1-15

Chapter 1 Product Descriptions

Rev. A 1-1

1.1 FEATURES

The EPSON Stylus Color 300 printer is a color ink jet printer that comes with standard four

colors (Black and CMY) printhead. The major features of this printer are:

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Standard four-colors printing.

Both black and color (CMY) print nozzles are built in one-piece printhead.

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High-quality color printing

360 dpi (Horizontal/Vertical) printing and semi-720 dpi (Vertical only) printing

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High-speed printing

200 CPS at 10CPI (Pica) text printing in Black color.



Standard Bi-directional Parallel Interface (IEEE1284 Nibble mode)

EPSON Stylus Color 300 Service Manual

Rev. A

1-2

1.2 SPECIFICATIONS

This section describes the product specifications for EPSON Stylus Color 300.

1.2.1 Printing Specifications

Print system: On-demand ink jet printer

Nozzle configuration: Black: 31 nozzles

(11 nozzles x 2 columns and 10 nozzles x 1 column)

Color: 11 nozzles / color

#B30 #29

#31

#B3

#B2 #B1

#C1

#M1

#Y1

#C11 #M11 #Y11

1/180"

(0.1411mm) 1/60"

(0.4233mm)

1/180"

(0.1411mm)

1/180"

(0.1411mm)

1/180"

(0.1411mm)

1/60"

(0.4233mm)

16/360"

(1.1289mm)

104/360"

(7.3378mm)

104/360"

(7.3378mm)

16/360"

(1.1289mm)

16/360"

(1.1289mm)

Print direction (Paper feed)

Viewed from the back of the printhead

Figure 1-1. Printhead Nozzle Configuration

Print direction: Bi-directional printing with logical-seeking

Print speed: Text: 200 CPS (LQ/10CPI in Black color)

Graphics: 20 IPS (at 360DPI)

Printable column: Text: 80 columns (10CPI)

Graphics: 2880 dot (at 360DPI)

Character Table: No table and include only the following characters:



Alphabet [A to Z] (code 41H ~ 5AH)

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Number [0 to 9] (code 30H ~ 39H)



SPACE (code 20H)

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Symbol [#] (code 23H)

Typeface: Bitmap LQ / EPSON Courier (10CPI)

Input data buffer: 25Kbyte

Chapter 1 Product Descriptions

Rev. A 1-

1.2.2 Software Specifications

Printer Language: Exclusive control codes for EPSON Stylus Color 300

EPSON Remote Command

Control Code: <Character mode>

General operation: Initialize printer ESC @

Paper feeding: Form feed FF

Line feed LF

Carriage operation Carriage return CR

EEPROM Control ESC |

General operation: Initialize printer ESC @

Uni-directional printing ESC U

CSF Mode control ESC EM

Paper feeding: Form feed FF

Line feed LF

Line spacing ESC +

Carriage operation: Carriage return CR

Page formatting: Page length ESC (C

Top/Bottom margin ESC (c

Print position control: Horizontal print position ESC $, ESC ¥

Vertical print position ESC (V, ESC (v

Spacing: Define unit ESC (U

Graphics: Graphics mode ESC (G

Raster graphics ESC . (∗1)

Color control: Printing color ESC r (∗2)

Note) EPSON Stylus Color 300 requires the specific printer driver for proper printing

operation and control, and use of other printer driver could result in improper

printing.

∗1: Works only with unique parameters.

∗2: It works only as a print buffer select command.

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