Epson Stylus Color 800 User manual

EPSON TERM NAL PRINTER
S~hs. 800+
SERVICE MANUAL
EPSON

NOTICE
All rights reserved. Reproduction of any part of this manual in any form whatsoever without
SEIKO EPSON’S express written permission is forbidden.
The contents of this manual are subjects to change without notice.
All efforts have been made toensure theaccuracyof thecontentsof this manual. However, should
any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.
The above notwithstanding SEIKO EPSON can assume no responsibility for any errors in this
manual or the consequence thereof.
Epson and Epson ESC/P are registered trademark of Seiko Epson Corporation.
General Notice: Other product names used herein are for identication purposes only and maybe
trademarks of their respective campanies.
@Copyright 1994 by SEIKO EPSON CORPORATION Nagano, Japan
-i-

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.
1.
2.
3.
1.
2.
3.
4.
5.
ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND
PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCE-
DURE.
NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH
BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN
THEIR LINE OF WORK.
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.
REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON
CERTIFIED REPAIR TECHNICIAN.
MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLT-
AGE, 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.
ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM
THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT
BOARDS AND/OR INDIVIDUAL CHIPS.
IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE
STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN
ACCESSING INTERNAL COMPONENTS.
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.
- ii -

PREFACE
This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair
of Stylus 800+.
The instructions and procedures included herein are intended for the experience repair technician, and
attention should be given to the precautions on the preceding page. The chapters are organized as
follows:
CHAPTER 1. GENERAL DESCRIPTION
Provides a general product overview, lists specifications, and illustrates the main components of the printer.
CHAPTER 2. OPERATING PRINCIPLES
Describes the theory of printer operation.
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
Includes a step-by-step guide for product disassembly and assembly.
CHAPTER 4. ADJUSTMENT
Includes a step-by-step guide for adjustment.
CHAPTER 5. TROUBLESHOOTING
Provides Epson-approved techniques for adjustment.
CHAPTER 6. MAINTENANCE
Describes preventive maintenance techniques and lists lubricants and adhesives required to service the equipment.
APPENDIX
“Describes connector pin assignments, circuit diagrams, circuit board component layout and exploded diagram.
The contents of this manual are subject to change without notice,
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REVISION SHEET
Revision
issue Dste
Revisbn Page
Rev. A April 20, 1994
Ist issue
c)
4. .
‘+,- -’
“v-

TABLE OF CONTENTS
CHAPTER 1. GENERAL DESCRIPTION
CHAPTER 2. OPERATING PRINCIPLES
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
CHAPTER 4. ADJUSTMENT
CHAPTER 5. TROUBLESHOOTING
CHAPTER 6. MAINTENANCE
APPENDIX
- vi -

Chapter 1 General Description
Table of Contents
1.1 FEATURES
1-1
1.2 SPECIFICATIONS
1-3
1.2.1 Printing Specifications. . . . . . . . . . . . . . . . . . . .’. . . . . . . . . . . . “ s ----- 1-3
1.2.2 Paper Handling Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1.2.3 Paper Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . “ . 1-6
1.2.4 Ink Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . “ .. ....0.. s “ 0.. 1-8
1.2.5 Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ““.... 1-9
1.2.6 Electrical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .“.””.. 1-9
1.2.7 Reliability. . . . . . . . . . . . . . . . . . . . . . . . . . . . “ . . . s Q “ “ .0. . s .- “ - “ “ “ 1-10
1.2.8 SafetyApprovals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .O-”.””-”.= 1-10
1.2.9 Physical Specifications . . . . . . . . . . . . . . . .. .. .. .. ... ... .”. -”s”- 1-10
1.3 INTERFACE SPECIFICATIONS
1-11
1.4 PRINTER OPERATIONS
1-13
1.4.1 Control Panel.... . . . . . . . . . . . . . . . .. ... ... ..”.-OS --.oo.mS”m” 1-13
1.4.2 Panel Operation atPowerOn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
1.4.3 Default Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -” .. 0.-. “ 1-14
1.4.4 Initial InkCharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
1.4.5 ErrorConditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..”...-”” 1-15
1.5 MAIN COMPONENTS
1-16
1.5.1 Main Control Board (C134 MAIN Board). . . . . . . . . . . . . . . . . . . . . . . . 1-16
1.5.2 Power Supply Unit (C106 PSB-B/PSE-B Board). . . . . . . . . . . . . . . . . . 1-17’
1.5.3 Printer Mechanism (M-4811). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
List of Figures
Figure 1-1. View of the Stylus 800+. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Figure l-2. Nozzle Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Figure 1-3. Printable Area - Cut Sheet (Built-in Sheet Feeder). . . . . . . . . . . . . 1-7
Figure 1-4. Printable Area - Cut Sheet /Envelope (Manual Insertion Slot) . . . . 1-7
Figure 1-5. Adjust Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . “ .-. . “ . . 1-8
Figure 1-6. Temperature / Humidity Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Figure 1-7. Data Transmission Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 I
Figure 1-8. Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-13
Figure 1-9. C134 MAIN Board Component Layout . . . . . . . . . . . . . . . . . . . . . 1-16
Figure 1-10. C106 PSB-B/PSE-B Board Component Layout . . . . . . . . . . . . . 1-17
Figure 1-11. Printer Mechanism (M-4811). . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
Rev. A
l-i

Table 1-1. Consumable forthe Stylus 800+. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Table l-2. Feature Comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Table l-3. Print SpeedandPrintable Columns . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Table 1-4. Character Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Table 1-5. Adjust Lever Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Table l-6. Requirements for Operation andStorage . . . . . . . . . . . . . . . . . . . . . 1-9
Table l-7. Electrical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Table l-8. Signal andConnector PinAssignments . . . . . . . . . . . . . . . . . . . . . 1-11
Table l-9. Default Setting Item. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Table 1-10. Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
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Rev. A

Stylus tUW+ service Manual
General Description
1.1 FEATURES
The Stylus 800+ is a serial inkjet printer that uses a newly developed inkjet technology to produce
superb quality output with high-speed printing. The major features of this printer are:
~ High print quality from a MACH (Multi-Layer ACtuator Head) inkjet technology.
D Fast printing of LQcharacters at 165 cps and draft characters at 250 cps.
D Compact design saves precious work space.
D Built-in auto sheet feeder with a capacity for a
maximum of 100 cut sheets (either A4 or letter).
D Equipped with4 scalable fonts, 5 bitmap LQ fonts, and 1 draft font, standard.
Cl 9 character tables for the standard version
15 character tables for the NLSP (National Langauage Support) version.
The figure below shows a view of the printer.
Printer cover
parallel
Paper separator Paper feeder cover
int
let
Figure 1-1. View of the Stylus 800+
Table 1-1. Consumable for the Stylus 800+
control panel
I
Part No.
I
Description
I
Type
I
S020025
Ink cartridge I Black ink cartridge
I
Rev.A
1-1

Gomrd oescf@knl
wh18ao&
Su’v&ohhud
Table 1-2 shows the differences
in features for the Stylus 800 and Stylus W+.
Table 1-2. Feature Comparison
Function/SpecWation stylus
Soo
stylus SO&
LQ Fonts (10 cpi)
Printing Spaed
150CPS
165 Cps
Draft Fonts (10 cpi)
Printing Speed
cannot printing
250 Cpe
Roman ‘
Draft
sane serif
Roman
Resident Bitrnsp Fonts
Courier
Ssns Serif
Prest”*
Courier
script Prestige
script
Roman T
Rasident Scalable Fonts ~=
Roman T
Saris serif
Saris Serif H sane
Serif H
n
..,,’,
<,,.
c’
..1
1-2
Rev. A