EPSON TERMINAL PRINTER
EPSON Stylus Color 300
SERVICE MANUAL
EPSON
4007996
TAll 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.
TThe contents of this manual are subject to change without notice.
TAll 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.
TThe 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 |
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and may be trademarks or registered trademarks of their respective |
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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 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 |
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A |
July 2, 1997 |
First issue |
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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
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:
YStandard four-colors printing.
Both black and color (CMY) print nozzles are built in one-piece printhead.
YHigh-quality color printing
360 dpi (Horizontal/Vertical) printing and semi-720 dpi (Vertical only) printing
YHigh-speed printing
200 CPS at 10CPI (Pica) text printing in Black color.
YStandard Bi-directional Parallel Interface (IEEE1284 Nibble mode)
Rev. A |
1-1 |
EPSON Stylus Color 300 Service Manual
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 |
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Nozzle configuration: |
Black: |
31 nozzles |
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(11 nozzles x 2 columns and 10 nozzles x 1 column) |
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Color: |
11 nozzles / color |
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16/360" |
104/360" |
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104/360" |
16/360" |
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(1.1289mm) |
(7.3378mm) |
(7.3378mm) |
(1.1289mm) |
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#31 |
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#C11 |
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#M11 |
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#B30 |
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#Y11 |
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#29 |
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Print direction (Paper feed) |
1/60" |
(0.4233mm) |
1/180" |
(0.1411mm) |
Print direction:
Print speed:
Printable column:
Character Table:
Typeface:
1/180" |
(0.1411mm) |
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1/60" |
(0.4233mm) |
#B3 |
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#B2 |
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#B1 |
#M1 |
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(0.1411mm) |
1/180" |
(0.1411mm) |
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1/180" |
16/360" |
#Y1 |
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#C1 |
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(1.1289mm) |
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Viewed from the back of the printhead
Figure 1-1. Printhead Nozzle Configuration
Bi-directional printing with logical-seeking
Text: |
200 CPS (LQ/10CPI in Black color) |
Graphics: 20 IPS (at 360DPI) |
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Text: |
80 columns (10CPI) |
Graphics: 2880 dot (at 360DPI)
No table and include only the following characters:
TAlphabet [A to Z] (code 41H ~ 5AH)
TNumber [0 to 9] (code 30H ~ 39H)
TSPACE (code 20H)
TSymbol [#] (code 23H)
Bitmap LQ / EPSON Courier (10CPI)
Input data buffer: |
25Kbyte |
1-2 |
Rev. A |
Chapter 1 Product Descriptions
1.2.2 Software Specifications
Printer Language: Exclusive control codes for EPSON Stylus Color 300 EPSON Remote Command
Control Code: |
<Character mode> |
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General operation: |
Initialize printer |
ESC @ |
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Paper feeding: |
Form feed |
FF |
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Line feed |
LF |
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Carriage operation |
Carriage return |
CR |
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EEPROM Control |
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ESC | |
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<Graphics mode> |
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General operation: |
Initialize printer |
ESC @ |
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Uni-directional printing |
ESC U |
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CSF Mode control |
ESC EM |
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Paper feeding: |
Form feed |
FF |
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Line feed |
LF |
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Line spacing |
ESC + |
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Carriage operation: |
Carriage return |
CR |
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Page formatting: |
Page length |
ESC (C |
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Top/Bottom margin |
ESC (c |
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Print position control: |
Horizontal print position |
ESC $, ESC ¥ |
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Vertical print position |
ESC (V, ESC (v |
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Spacing: |
Define unit |
ESC (U |
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Graphics: |
Graphics mode |
ESC (G |
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Raster graphics |
ESC . ( 1) |
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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.
Rev. A |
1-3 |
EPSON Stylus Color 300 Service Manual
1.2.3 Paper Handling
Feeding method: |
Friction feed with built-in ASF |
Paper path: |
Rear-top entrance / Front eject |
Line spacing: |
1/6 inch or programmable in 1/360 inch minimum increments. |
Paper feeding speed: |
102 mS (at 1/6 inch paper feed pitch) |
1.2.4 Paper Specifications
Y Cut sheet
T Size:
Table 1-1. Paper Size - Cut Sheet
Type
A4
LETTER
B5
LEGAL
Statement
Executive
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Width |
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Length |
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210 mm |
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297 mm |
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(8.3”) |
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(11.7”) |
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216 mm |
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279 mm |
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(8.5”) |
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(11.0”) |
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182 mm |
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257 mm |
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(7.2”) |
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(10.1”) |
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216 mm |
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356 mm |
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(8.5”) |
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(14.0”) |
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139.7 mm |
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215.9 mm |
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(5.5”) |
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(8.5”) |
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184.2 mm |
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266.7 mm |
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(7.25”) |
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(10.5”) |
T Thickness: |
0.08 ~ 0.11 mm (0.003 ~ 0.004”) |
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T Weight: |
64 ~ 90 g/m² (17 ~ 24 lb.) |
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T Quality: |
Plain paper, Recycled paper, EPSON special medias |
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Y Envelope |
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T Size: |
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Table 1-2. Paper Size - Envelope |
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Type |
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Width |
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Length |
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No.10 |
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241 mm |
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104.8 mm |
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(9 1/2”) |
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(4 1/8”) |
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DL |
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220 mm |
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110 mm |
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(8.7”) |
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(4.3”) |
T Thickness: |
0.16 ~ 0.52 mm (0.006 ~ 0.020”) |
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T Weight: |
45 ~ 90 g/m² |
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T Quality: |
BOND paper, Plain paper, Airmail |
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Note) Envelope printing is allowed only under normal temperature/humidity condition.
Set the longer side of envelope horizontally at setting.
1-4 |
Rev. A |
Chapter 1 Product Descriptions
Y Others
T Size:
Table 1-3. Paper Size - Special Media
Type
Transparency (A4)
Transparency (LETTER)
Glossy Paper (A4)
Glossy Paper (LETTER)
Index Card (A6 size)
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Width |
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Length |
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210 mm |
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297 mm |
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(8.3”) |
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(11.7”) |
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216 mm |
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279 mm |
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(8.5”) |
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(11.0”) |
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210 mm |
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297 mm |
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(8.3”) |
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(11.7”) |
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216 mm |
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279 mm |
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(8.5”) |
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(11.0”) |
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105 mm |
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148 mm |
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(4.1”) |
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(5.8”) |
T |
Quality: |
Exclusive transparency/Glossy Paper |
T |
Thickness: |
0.23 mm (0.0091”) for Index Card |
Note) Set the paper thickness lever to “THICK PAPER” position for index card printing.
Rev. A |
1-5 |
EPSON Stylus Color 300 Service Manual
1.2.5 Printable Area
The maximum printable area with each type of paper is summarized in table below.
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Table 1-4. Printable Area |
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Type |
PW |
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PL |
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LM |
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RM |
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TM |
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BM |
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(typ.) |
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(typ.) |
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(Min.) |
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(Min.) |
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(Min.) |
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(Min.) |
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A4 |
210 mm |
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297 mm |
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3.0 mm |
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3.0 mm |
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3.0 mm |
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14.0 mm |
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(8.3”) |
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(11.7”) |
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(0.12”) |
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(0.12”) |
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(0.12”) |
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(0.55”) |
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LETTER |
216 mm |
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279 mm |
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Ý |
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Ý |
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Ý |
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Ý |
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(8.5”) |
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(11.0”) |
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LEGAL |
216 mm |
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356 mm |
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Ý |
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Ý |
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Ý |
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Ý |
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(8.5”) |
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(14”) |
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A6 |
105 mm |
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148 mm |
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Ý |
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Ý |
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Ý |
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Ý |
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(4.1”) |
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(5.8”) |
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B5 |
182 mm |
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257 mm |
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Ý |
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Ý |
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Ý |
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Ý |
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(7.2”) |
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(10.1”) |
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Statement |
139.7 mm |
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215.9 mm |
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Ý |
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Ý |
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Ý |
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Ý |
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(5.5”) |
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(8.5”) |
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Executive |
184.2 mm |
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266.7 mm |
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Ý |
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Ý |
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Ý |
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Ý |
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(7.25”) |
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(10.5”) |
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No.10 |
241 mm |
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105 mm |
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Ý |
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33.8 mm |
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Ý |
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Ý |
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(9.5”) |
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(4.1”) |
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(1.33”) |
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DL |
220 mm |
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110 mm |
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Ý |
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13.8 mm |
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Ý |
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Ý |
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(8.7”) |
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(4.3”) |
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(0.54”) |
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CUT SHEET |
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PW |
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LM |
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RM |
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TM |
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Printable Area
PL
BM
ENVELOPE |
PW |
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LM |
RM |
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TM |
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Printable Area |
PL |
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BM |
Figure 1-2. Printable Area
1-6 |
Rev. A |
Chapter 1 Product Descriptions
1.2.6 PG Adjust Lever Setting
The paper-gap (PG); a space between the printhead nozzle surface annd the paper surface, can be adjusted to the appropriate level by the PG adjust lever which located underneath the printer cover.
Table 1-5. PG Adjust Lever Setting
Paper Type |
Lever Position |
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Gap Setting |
Cut Sheet |
Front |
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0 mm |
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(“0” position) |
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Envelope |
Rear |
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+0.62 mm |
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(“+” position) |
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1.2.7 Paper Select Lever Setting
The built-in ASF is equipped with the adjust lever and the position of lever should be set to appropriate position according to the type of paper used for the printing.
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Table 1-6. Paper Select Lever Setting |
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Paper Feeding |
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Paper Type |
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Source |
Select |
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Cut Sheet |
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Envelope |
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Lever |
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Position |
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ASF |
Thick |
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No |
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OK |
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Normal |
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OK |
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No |
Manual |
Thick |
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OK |
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OK |
Insertion |
Normal |
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No |
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No |
Paper Thickness Lever
(Forward position: Normal Backward position: Thick paper)
Paper Thickness Lever (Locate underneath the printer cover) (Forward position: "0" Normal
Backward position: "+" Envelopes)
Figure 1-3. PG Adjust Lever and Paper Select Lever
Rev. A |
1-7 |
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