Epson Stylus Photo 820 User manual

EPSONTERMINALPRINTER

StylusTMCOLOR IIs&StylusTM820

SERVICEMANUAL

EPSON 4005245

NOTICE

EPSON’s express written permission is forbidden.

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

All efforts have been made to ensure the accuracy of the contents of 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 resoinsibility for any errors in this manual or the

consequence thereof.

Epson and Epson’s ESC/P are registered trademark of Seiko Epson Corporation.

General Notice: Other product names used herein are for identication purpose only and may be trademark of

their respective companies.

-i-

PRECAUTIONS

Precautionary notations throughout the text are categorized relative to 1) personal jnjuury 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 PROCEDURE.

2. NOWORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH

BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN

THEIR LINE OF WORK.

3. WHEN PERFORMING TESTING AS DCTATED 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 THATTHE 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

INTERNALCOMPONENTS.

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.

-ii-

PREFACE

This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of

Stylus Color IIs / Stylus 820.

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. PRODUCT 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 the step-by-step guide for product disassembly and assembly

CHAPTER 4. ADJUSTMENTS

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.

-iv-

REVISION SHEET

Revision Issue Date Contents

Rev.-A August 25,1995 1st issue

-v-

TABLE OF CONTENTS

CHAPTER 1. PRODUCT DESCRIPTION

CHAPTER 2. OPERATION PRINCIPLES

CHAPTER 3 DISASSEMBLY AND ASSEMBLY

CHAPTER 4. ADJUSTMENT

CHAPTER 5. TROUBLESHOOTING

CHAPTER 6. MAINTENANCE

APPENDIX

-vi-

Chapter 1 Operating Principles

Table of Contents

1.1 OVERVIEW 1-1

1.2 SPECIFICATIONS 1-1

1.2.1 PrintingSpecifications ......................................1-2

1.2.2 PaperHandlingSpecifications................................1-4

1.2.3 PaperSpecifications........................................1-4

1.2.4 InkCartridgeSpecifications..................................1-6

1.2.5 ElectricalSpecifications.....................................1-7

1.2.6 EnvironmentalSpecifications.................................1-7

1.2.7 Reliability..................................................1-8

1.2.8 Safety Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

1.2.9 AcousticNoise.............................................1-8

1.2.10 PhysicalSpecifications.....................................1-8

1.3 INTERFACE SPECIFICATIONS 1-9

1.3.1 ParallelInterfaceSpecifications...............................1-9

1.4 OPERATION CONTROLS 1-11

1.4.1 ControlPanel .............................................1-11

1.4.2 PanelOperationandBuilt-inFunction.........................1-11

1.4.3 DefaultSettings...........................................1-14

1.4.3.1 Setting Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

1.4.3.2 Setting Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

1.4.4 ErrorConditions...........................................1-18

1.4.5 PrinterInitialization ........................................1-18

1.4.5.1 Hardware Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18

1.4.5.2 Sofware Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18

1.4.5.3 PanelInitialization...................................1-18

1.5 MAIN CONPONENTS 1-19

1.5.1 MainControlBoard(C160MainControlBoard) .................1-19

1.5.2 PowerSupplyBoard(C160PSB/PSEBoard)....................1-20

1.5.3 C160I/FBoard ............................................1-20

1.5.4 PrinterMechanism((M-4C10).................................1-21

1.5.5 Housing..................................................1-21

Rev. A 1-i

List of Figures

Figure1-1.ExteriorViewoftheStylusColorIIs(820).................. 1-1

Figure1-2.NozzleConfiguration................................... 1-2

Figure1-3.PrintableArea......................................... 1-4

Figure1-4.PaperSelectLever..................................... 1-5

Figure1-5.Temperature/HumidityRange........................... 1-7

Figure1-6.DataTransmissionTiming.............................. 1-9

Figure1-7.ControlPanelAppearance............................. 1-11

Figure 1-8. C160 Main Control Board Component Layout . . . . . . . . . . . . . 1-19

Figure1-9.C160PSB/PSEBoardComponentLayout ................ 1-20

Figure1-10.C160I/FBoardComponentLayout..................... 1-20

Figure1-11.M-4C10PrinterMechanism............................ 1-21

Figure1-12.Housing............................................ 1-21

List of Tables

Table1-1. PrintSpeedandPrintableColumn........................ 1-2

Table1-2.CharacterTables....................................... 1-3

Table1-3. PaperSpecifications ................................... 1-4

Table1-4. AdjustLeverSettings................................... 1-5

Table1-5. PaperSelectLeverSettings ............................. 1-5

Table1-6. BlackI/CSpecifications................................. 1-6

Table1-7. ColorI/CSpecifications................................. 1-6

Table1-8. RatedElectricalRanges................................. 1-7

Table1-9. AcceptableEnvironmentalConditions..................... 1-7

Table 1-10. Siganal and Connector Pin Assignment for Parallel I/F . . . . . 1-10

Table1-11. PanelOperation..................................... 1-11

Table1-12. Built-inFunctionsonthePanel......................... 1-12

Table 1-13. Button Operations in Default Setting Mode. . . . . . . . . . . . . . . 1-12

Table1-14. ErrorIndicators...................................... 1-13

Table 1-15. Default Setting Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Table1-16. LanguageSelections................................. 1-15

Table1-17.FeatureSelections.................................... 1-16

Table1-18. CharacterTableSelection............................. 1-17

1-ii Rev. A

1.1 FEATURES

The Stylus Color IIs printer is a color ink jet dot matrix printer that comes with a 64-nozzle black printhead

and a 60-nozzle CMY color printhead, either of which can be installed in the printer. The Stylus 820 version

of the same printer comes standard with only the 64-nozzle black printhead; however, the CMY color

printhead can be purchased as an optional upgrade. Whenever this manual mentions the Stylus Color IIs, its

descriptions are equally applicable to the Stylus 820. The major printer features are:

❏High-quality color print

-720 dpi printing

-720 dpi printing on plain paper

-720, 360 dpi printing on special coated paper

(Use the monochrome head only with plain paper)

❏High-speed print

-LQ 125 cps (monochrome head)

-LQ 170 cps (CMY head, using one-pass printing)

Note: The CMY head prints 360 dpi printing in three passes.

❏Built-in auto sheet feeder

-Plain paper (Can be installed up to the hopper guide marker.)

-Transparency film (Can be installed up to the hopper guide marker.)

-Glossy paper (1-sheet only)

-Coated paper (Can be installed up to the hopper guide marker.)

-Envelopes (30 sheets)

-Postcards (30 sheets)

❏Built-in I/F

-Parallel I/F only (8-bit parallel: IEEE P1284 mode)

❏Easy setup

-No DIP switches

❏3 scalable fonts and 3 LQ fonts standard

-Roman T, Sans Serif H, Roman, Sans Serif (scalable)

-Roman, Sans Serif, Courier, Prestige, Script (LQ, bitmap)

❏Character tables

-9 character tables (standard version)

-15 character tables (NLSP version)

❏Low running cost

The figure below shows the Stylus Color IIs.

Figure 1-1. Exterior Viewing of Stylus Color IIs(820)

Stylus Color IIs / Stylus 820 Product Description

Rev. A 1-1

1.2 SPECIFICATIONS

This section provides statistics and other detailed information for the printer.

1.2.1 Printing Specifications

Print system: On-demand ink jet system

Nozzle configuration: 64 nozzles (10 ×2+11×4 standard ): monochrome

60 nozzles (20 ×3 standard): color

Printing direction: Bidirectional with logic-seeking

Table 1-1. Print Speed and Printable Columns

Character

Pitch

Printable

Columns Printing Speed (cps)

Monochrome CMY

10 cpi (Pica) 80 125 170

12 cpi (Elite) 96 150 204

15 cpi 120 188 255

17 cpi (Pica condensed) 136 214 290

20 cpi (Elite condensed) 160 250 340

#1 #1 #1

#2 #2 #2

#19

#20

#19

#20 #20

#19

#1 #2 #3

#64

#61

#59 #62 #63

#60

(Row M) (Row C) (Row Y)

(A) (B) (C) (D) (E) (F)

120 dpi 360 dpi

120 dpi

Figure 1-2. Nozzle Configuration

Product Description Stylus Color IIs / Stylus 820

1-2 Rev. A

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