Epson stylus 300 schematic
EPSON TERMINAL PRINTER
EPSON Stylus Color 300
SERVICE MANUAL
EPSON
4007996
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.
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.
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 result 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 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 EQ UIPMENT, SUCH AS ANTI-STATIC W RIST STRAPS, W HEN
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
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:
Standard four-colors printing.
Both black and color (CMY) print nozzles are built in one-piece printhead.
High-quality color printing
360 dpi (Horizontal/Vertical) printing and semi-720 dpi (Vertical only) printing
High-speed printing
200 CPS at 10CPI (Pica) text printing in Black color.
Standard 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
Nozzle configuration: Black: 31 nozzles
(11 nozzles x 2 columns and 10 nozzles x 1 column)
Color: 11 nozzles / color
16/360"
(1.1289mm)
#B30
Print direction (Paper feed)
1/60"
(0.4233mm)
#B3
#B2
1/180"
(0.1411mm)
#29
104/360"
(7.3378mm)
#31
1/180"
(0.1411mm)
#B1
1/180"
(0.1411mm)
1/180"
(0.1411mm)
Viewed from the back of the printhead
#C11
#C1
16/360"
(1.1289mm)
104/360"
(7.3378mm)
#M11
#M1
16/360"
(1.1289mm)
#Y11
1/60"
#Y1
(0.4233mm)
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)
Number [0 to 9] (code 30H ~ 39H)
SPACE (code 20H)
Symbol [#] (code 23H)
Typeface: Bitmap LQ / EPSON Courier (10CPI)
Input data buffer: 25Kbyte
1-2
Rev. A
Chapter 1 Product Descriptions
3
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 |
<Graphics mode>
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.
∗
Rev. A
1-
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
Cut sheet
Size:
Table 1-1. Paper Size - Cut Sheet
Type Width Length
A4 210 mm
(8.3”)
LETTER 216 mm
(8.5”)
B5 182 mm
(7.2”)
LEGAL 216 mm
(8.5”)
Statement 139.7 mm
(5.5”)
Executive 184.2 mm
(7.25”)
297 mm
(11.7”)
279 mm
(11.0”)
257 mm
(10.1”)
356 mm
(14.0”)
215.9 mm
(8.5”)
266.7 mm
(10.5”)
Thickness: 0.08 ~ 0.11 mm (0.003 ~ 0.004”)
Weight: 64 ~ 90 g/m² (17 ~ 24 lb.)
Quality: Plain paper, Recycled paper, EPSON special medias
Envelope
Size:
Table 1-2. Paper Size - Envelope
Type Width Length
No.10 241 mm
DL 220 mm
Thickness: 0.16 ~ 0.52 mm (0.006 ~ 0.020”)
Weight: 45 ~ 90 g/m²
Quality: BOND paper, Plain paper, Airmail
1
(9
(8.7”)
/2”)
104.8 mm
(4 1/8”)
110 mm
(4.3”)
Note) ∗Envelope printing is allowed only under normal temperature/humidity
condition.
∗Set the longer side of envelope horizontally at setting.
1-4
Rev. A
5
Others
Size:
Table 1-3. Paper Size - Special Media
Type Width Length
Transparency (A4) 210 mm
(8.3”)
Transparency (LETTER) 216 mm
(8.5”)
Glossy Paper (A4) 210 mm
(8.3”)
Glossy Paper (LETTER) 216 mm
(8.5”)
Index Card (A6 size) 105 mm
(4.1”)
Quality: Exclusive transparency/Glossy Paper
Thickness: 0.23 mm (0.0091”) for Index Card
Chapter 1 Product Descriptions
297 mm
(11.7”)
279 mm
(11.0”)
297 mm
(11.7”)
279 mm
(11.0”)
148 mm
(5.8”)
Note) Set the paper thickness lever to “THICK PAPER” position for index card
printing.
Rev. A
1-
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.
Table 1-4. Printable Area
Type PW
(typ.)
A4 210 mm
(8.3”)
LETTER 216 mm
(8.5”)
LEGAL 216 mm
(8.5”)
A6 105 mm
(4.1”)
B5 182 mm
(7.2”)
Statement 139.7 mm
(5.5”)
Executive 184.2 mm
(7.25”)
No.10 241 mm
(9.5”)
DL 220 mm
(8.7”)
CUT SHEET
PL
(typ.)
297 mm
(11.7”)
279 mm
(11.0”)
356 mm
(14”)
148 mm
(5.8”)
257 mm
(10.1”)
215.9 mm
(8.5”)
266.7 mm
(10.5”)
105 mm
(4.1”)
110 mm
(4.3”)
LM
(Min.)
3.0 mm
(0.12”)
RM
(Min.)
3.0 mm
(0.12”)
TM
(Min.)
3.0 mm
(0.12”)
BM
(Min.)
14.0 mm
(0.55”)
⇑⇑⇑⇑
⇑⇑⇑⇑
⇑⇑⇑⇑
⇑⇑⇑⇑
⇑⇑⇑⇑
⇑⇑⇑⇑
⇑
33.8 mm
⇑⇑
(1.33”)
⇑
13.8 mm
⇑⇑
(0.54”)
PW
LM RM
ENVELOPE
TM
Printable Area
BM
PW
LM RM
Printable Area
PL
TM
PL
BM
1-6
Figure 1-2. Printable Area
Rev. A
Chapter 1 Product Descriptions
7
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 Gap Setting
Cut Sheet Front
0 mm
(“0” position)
Envelope Rear
+0.62 mm
(“+” position)
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.
Table 1-6. Paper Select Lever Setting
Paper Feeding Paper Type
Source Select
Cut Sheet Envelope
Lever
Position
ASF Thick No OK
Normal OK No
Manual Thick OK OK
Insertion Normal No No
Paper Thickness Lever
(Forward position: Normal
Backward position: Thick paper)
Paper Thickness Lever
(Forward position: "0" Normal
Backward position: "+" Envelopes)
(Locate underneath the printer cover)
Figure 1-3. PG Adjust Lever and Paper Select Lever
Rev. A
1-
Loading...