Epson Stylus PHOTO 890, Stylus PHOTO 1280, Stylus PHOTO 1290 Service Manual

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SERVICE MANUAL
Stylus PHOTO 890
Color ink jet printer
EPSON Stylus PHOTO 890/1280/1290
Stylus PHOTO 1290/1280
Notice
mechanical, photocopying, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.
All effort 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 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 detected, 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 © 2000 SEIKO EPSON CORPORATION. Imaging & Information Product Division TPCS Quality Assurance Center
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. 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.
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.
4. WHEN DISASSEMBLING OR ASSEMBLING A PRODUCT, MAKE SURE TO WEAR GLOVES TO AVOID INJURIER FROM METAL PARTS WITH SHARP EDGES.
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. DO NOT REPLACE IMPERFECTLY FUNCTIONING COMPONENTS WITH COMPONENTS WHICH ARE NOT MANUFACTURED BY EPSON. IF SECOND SOURCE IC OR OTHER COMPONENTS WHICH HAVE NOT BEEN APPROVED ARE USED, THEY COULD CAUSE DAMAGE TO THE EPSON PRODUCT, OR COULD VOID THE WARRANTY OFFERED BY EPSON.
PREFACE
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of EPSON Stylus PHOTO 890/1280/
1290. The instructions and procedures included herein are intend ed 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:
• EEPROM Address Map
• Connector Pin Assignments
• Component Layout
• Exploded Diagrams
• Electrical Board Circuit Diagrams
Symbols Used in this Manual
Various symbols are used throughout this manual either to provide additional information on a specific topic or to warn of possible danger present during a procedure or an action. Be aware of all symbols when they are used, and always read NOTE, CAUTION, or WARNING messages.
A D J U S T M E N T
R E Q U I R E D
C A U T I O N
C H E C K
P O I N T
W A R N I N G
Indicates an operating or maintenance procedure, practice or condition that is necessary to keep the product’s quality.
Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed, could result in damage to, or
destruction of, equipment.
May indicate an operating or maintenance procedure, practice or condition that is necessary to accomplish a task efficiently. It may also
provide additional information that is related to a specific subject, or comment on the results achieved through a previous action.
Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, could result in injury or loss of life.
Revision Status
Revision Issued Date Description
A November 16, 2000 First Release
Revision:
• page-78: A warning message for static electricity added.
B December 27, 2000
C February 8, 2001
• page -79: Caution messages for torque and ink tube position added
• page -90& page -92: Caution messages for ink tube installation added.
• page -121: PG adjustment tool added. Revision:
• All chapters: Stylus PHOTO 1280(for EAI) added.
• page -68: Misdescription for Maintenance Request Error corrected.
• page -128: Stylus PHOTO 1280(for EAI) added to Destination in the adjustment program.
• page -182: C393 MAIN-C Board circuit diagram added.
D June 4,2002
Revision:
• “Lubrication” on page -156: The lubrication of Oil O-12 for the Stylus Photo 1280/129 0 added.
Table of Contents
Chapter 1 PRODUCT DESCRIPTIONS
1.1 Overview ............................................................................................................ 11
1.1.1 Features ...................................................................................................... 11
1.1.2 Accessories, Consumable Products, and Options ...................................... 12
1.2 Basic Specifications .......................................................................................... 14
1.2.1 Printing Specification ................................................................................ 14
1.2.2 Control Code ........................................................... ................................... 14
1.2.3 Paper Feeding ............................................................................................ 14
1.2.4 Input Data Buffer ....................................................................................... 14
1.2.5 Paper Specifications ................................................................................... 15
1.2.5.1 EPSON Special Media ............................................................... ....... 15
1.2.6 Printing Area .............................................................................................. 17
1.2.6.1 Cut Sheet ........................................................................................... 17
1.2.6.2 Envelopes .......................................................................................... 18
1.2.7 Adjust Lever .............................................................................................. 18
1.2.8 Ink Cartridge ................................................... ........................................... 19
1.2.9 Electric Specification ...................................... ... .................................... ... . 20
1.2.10 Reliability ................................................................................................ 20
1.2.11 Environmental Condition ......................................................................... 21
1.3 Interface ............................................................................................................. 22
1.3.1 Parallel Interface (Forward Channel) ........................................................ 22
1.3.2 Parallel Interface (Reserve Channel) ......................................................... 25
1.3.3 USB Interface ............................................................................................ 26
1.3.4 Prevention of Data Transfer Time-out ....................................................... 27
1.3.5 Interface Selection ..................................................................................... 27
1.3.6 IEEE1284.4 Protocol .......... .................................... ................................... 27
1.4 Operations ......................................................................................................... 28
1.4.1 Buttons ....................................................................................................... 28
1.4.2 Indicators ................................................................................................... 28
1.4.3 Panel Functions ....................................................... ................................... 28
1.4.4 Special Setting Mode ................................................................................. 29
1.4.5 Printer Initialization ................................................................................... 30
1.4.6 Initialization Value .................................................................................... 30
1.5 Dimension .......................................................................................................... 31
Chapter 2 OPERATING PRINCIPLES
2.1 Overview .......................................................................... .................................. 34
2.1.1 Printhead Mechanism ................................................................................ 35
2.1.2 Carriage Mechanism .................................................................................. 36
2.1.2.1 Carriage Motor (CR Motor) .............................................................. 36
2.1.2.2 Platen Gap (PG) /Parallelism Adjustment Mechanism ..................... 37
2.1.2.3 Carriage Home Position (HP) Detection ........................................... 37
2.1.3 Paper Feeding Mechanism .................................................. ....................... 37
2.1.3.1 CR Lock Mechanism ..................................................... .................... 39
2.1.4 Paper Loading Mechanism ........................................................................ 40
2.1.4.1 Drive Transmission to the ASF Unit ................................................. 40
2.1.4.2 Paper Loading Operation .................................................................. 41
2.1.4.3 Pump Mechanism .............................................................................. 42
2.1.4.4 Capping Mechanism .......................................................................... 43
2.2 Electrical Circuit Operating Principles .......................................................... 44
2.2.1 C378PSB/PSE Board ....................................................... .......................... 44
2.2.1.1 Electrical Circuit ................................................ ............................... 44
2.2.1.2 Protection Circuits ............................................................................. 46
2.2.1.3 Power Supply Control Function ............................................... ......... 46
2.2.1.4 Energy Save Mode ............................................................................ 46
2.2.2 C393MAIN Board Circuit Operation Principles ....................................... 47
2.2.2.1 Printhead Driver Circuit .................................................................... 50
2.2.2.2 RTC (Real Time Clock)/ Reset/ EEPROM Circuit ........................... 51
2.2.2.3 Motor Driver Circuit ......................................................................... 52
2.2.2.4 ASF/Pump Motor Driver Circuit ....................................................... 57
2.2.2.5 Sensor Circuit .................................................................................... 58
Chapter 3 TROUBLESHOOTING
3.1 Overview .......................................................................... .................................. 61
3.1.1 Self-Diagnostic Function ........................................................................... 62
3.1.1.1 Troubleshooting with LED Error Indicators ..................................... 62
3.1.1.2 Error Conditions ................................................................................ 62
3.1.1.3 Remedies for Paper Out Error ........................................................... 65
3.1.1.4 Remedies for the Paper Jam Error ..................................................... 67
3.1.1.5 Remedies for No Ink Cartridge Error/Ink Cartridge Problem ........... 67
3.1.1.6 Remedies for Maintenance Request Error ......................................... 68
3.1.1.7 Remedies for Fatal Error ................................................................... 69
3.1.2 Isolating the Faulty Part on the Power Supply Board ................................ 72
3.1.3 Isolating the Faulty Part according to the Phenomenon ............................ 72
Chapter 4 DISASSEMBLY AND ASSEMBLY
4.1 Overview ............................................................................................................ 78
4.1.1 Precaution for Disassembling the Printer .................................................. 78
4.1.2 Tools .......................................................................................................... 79
4.1.3 Specifications for Screws .......................................................................... 80
4.1.4 Service Checks After Repair ..................................................................... 81
4.2 Disassembly Procedures ................................................................................... 82
4.2.1 HOUSING Removal .................................................................................. 83
4.2.2 Circuit Board Assembly Removal ............................................................. 84
4.2.3 Panel Unit Removal ................................................... ................................ 86
4.2.4 Printhead Unit Removal ............................................................................ 88
4.2.5 TRAY, ABSORBER ASSEMBLY Removal ........................................... . 89
4.2.6 Ink Unit Removal ...................................................................................... 91
4.2.7 MOTOR ASSEMBLY, CR Removal ........................................................ 94
4.2.8 MOTOR ASSEMBLY, ASF Removal ...................................................... 95
4.2.9 DE Unit Removal ...................................................................................... 96
4.2.10 ASF Unit Removal .................................................................................. 99
4.2.10.1 SHAFT, ROLLER, LD Removal .................................................. 101
4.2.10.2 ROLLER ASSEMBLY, LD, RIGHT/LEFT Removal ................. 106
4.2.11 Carriage Unit Removal .......................................................................... 107
4.2.12 BOARD ASSEMBLY, ENCODER Removal ....................................... 109
4.2.13 ROLLER, PF Removal .......................................................................... 110
4.2.13.1 SCALE, PF Installation ................................................................. 113
4.2.14 MOTOR ASSEMBLY, PF Removal ..................................................... 116
4.2.15 PE Sensor Unit Removal ....................................................................... 117
Chapter 5 ADJUSTMENT
5.1 Overview .......................................................................................................... 119
5.1.1 Adjustment Items ..................................................................................... 119
5.1.2 Adjustment Tools ..................................................................................... 120
5.2 Adjustment ...................................................................................................... 121
5.2.1 Parallelism Adjustment ............................................................................ 121
5.2.1.1 Using PG Adjustment Tool ............................................................. 121
5.2.1.2 Using Thickness Gauge ................................................................... 124
5.2.2 Backlash Adjsutment ............................................................................ 125
5.2.3 Adjustment Program Feature ................................................................... 127
5.2.3.1 How to Install the Program ............................................................. 128
5.2.3.2 How to Uninstall the Program ......................................................... 128
5.2.4 Starting the Service Program ................................................................... 128
5.2.4.1 Adjusting Program Initial Setting ................................................... 128
5.3 Individual Adjustment Program ................................................................... 130
5.3.1 Head ID ............................................. ..................................... .................. 130
5.3.1.1 Head ID Input ............................................................................... 130
5.3.1.2 Head ID Check ................................................................................ 132
5.3.2 Bi-Directional Adjustment .................................................................... 133
5.3.2.1 Input Bi-D Adjustment Value ...................................................... 135
5.3.2.2 Check Present Adjustment Data ...................................................... 136
5.3.3 Input/Check USB ID ............................................................................... 137
5.3.3.1 Input USB ID ..................................................... ............................. 138
5.3.3.2 Check USB ID ...................................................... ........................... 138
5.3.4 Maintenance ......................................... .................................................... 139
5.3.4.1 Head Cleaning Operation ................................................................ 139
5.3.5 Ink Charge Operation ............................................................................. 140
5.3.6 Refurbishment for DOA .......................................................................... 141
5.3.7 Protection Counter .................................................................................. . 143
5.3.7.1 Check the Present Counter Value ............................... ..................... 143
5.3.7.2 Clear the Protection Counter Value ................................................ 143
5.3.8 Appendix Items .......................................... .................................... .......... 145
5.3.8.1 CSIC Information ......................................................................... 145
5.3.8.2 EEPROM Data Check ................................................................... 146
5.3.8.3 Changing EEPROM Data .............................................................. 146
5.3.9 A4 Check Pattern Printing ..................................................... .................. 147
5.4 Sequential Repair Adjustment Program ...................................................... 149
5.4.1 Function ............................................................................................... .... 149
5.4.1.1 How to start the program ................................................................. 149
5.4.1.2 Printhead Removal .......................................................................... 150
5.4.1.3 Printhead Replacement .................................................................... 151
5.4.1.4 Main Board Replacement ................................................................ 152
5.4.1.5 Carriage Unit Replacement/ Removal ............................................. 152
5.4.1.6 CR Motor Replacement ................................................................... 152
5.4.1.7 Printer Mechanism Replacement .................................................... 152
5.4.1.8 Waste Ink Pad Replacement ............................................................ 152
5.4.1.9 Clogged Nozzle Recovery ............................................................... 152
Chapter 6 MAINTENANCE
6.1 Overview .......................................................................................................... 155
6.1.1 Cleaning ................................................................................................... 155
6.1.2 Service Maintenance ................................................................................ 155
6.1.2.1 Head Cleaning ...... ........................................................................... 155
6.1.2.2 Maintenance Request Error Clear ................................................... 155
6.1.3 Lubrication ............................................................................................... 156
Chapter 7 APPENDIX
7.1 Connector Summary ...................................................................................... 166
7.1.1 Connector Alignment ............................................................................... 166
7.1.2 Connector Pin Assignment ...................................................................... 166
7.1.3 EEPROM Address Map ........................................................................... 169
7.2 Circuit Board Component Layout ................................................................ 174
7.3 Electrical Circuit Board Diagrams ............................................................... 179
7.4 Exploded Diagrams ........................................................................................ 186
7.4.1 Exploded Diagrams for Stylus PHOTO 890 ........................................... 186
7.4.2 Exploded Diagrams for Stylus PHOTO 1280/1290 ................................ 191
7.5 Parts List ......................................................................................................... 196
7.5.1 Parts List for Stylus PHOTO 890 .................................................. ... ....... 196
7.5.2 Parts List for Stylus PHOTO 1280/1290 ................................................. 201

PRODUCT DESCRIPTIONS

CHAPTER
1
EPSON Stylus PHOTO 890/1280/1290 Revision C

1.1 Overview

The EPSON Stylus PHOTO 890 and EPSON Stylus PHOTO 1280/1290 are designed for both home use and office use. Stylus PHOTO 1280 is for EAI use only.

1.1.1 Features

The main features of the products are:
High-quality color print (6 colors)
High-speed & image quality bidirectional printing
Photo quality print enabled by photo mach technology
Supports microweave and super microweave
Prints at high resolution (2880x 720 dpi)
Two built-in interfaces
Bi-directional parallel interface (IEEE-1284 level 1 device)
USB I/F
Small size requiring less space.
Figure 1-1. Stylus PHOTO 890
Used only in Windows or Macintosh environment.
Built-in ASF (auto sheet feeder) supports multiple sizes of paper.
Stylus PHOTO 890: From postcard size up to A4
Stylus PHOTO 1280/1290: From postcard size up to A3 (W)
CSIC keeps track of ink life information on the ink cartridge side.
Figure 1-2. Stylus PHOTO 1280/1290
PRODUCT DESCRIPTIONS Overview 11
EPSON Stylus PHOTO 890/1280/1290 Revision C

1.1.2 Accessories, Consumable Products, and Options

ACCESSORIES
Users Guide
Ink cartridge (Black and color)
CD-ROM (Printer driver and utilities)
CONSUMABLE PRODUCTS
NOTE: The product codes of the ink cartridges may vary by location. NOTE: The availability of special media varies by location. NOTE: The products with an asterisk (*)are only available for Stylus PHOTO
1280/1290.
Table 1-1. Consumable Products
Product Name Code
Black ink cartridge T007 Color ink cartridge (Stylus PHOTO 890) T008 Color ink cartridge (Stylus PHOTO 1280/1290) T009 EPSON Premium Ink Jet Plain Paper (A4) S041214 EPSON 360 dpi Ink Jet Paper (A4)
EPSON 360 dpi Ink Jet Paper (Letter) EPSON 360 dpi Ink Jet Paper (A3)* EPSON 360 dpi Ink Jet Paper (Super A3/B)*
EPSON Iron-On Cool Peel Transfer Paper (A4) EPSON Iron-On Cool Peel Transfer Paper (Letter) EPSON Iron-On Cool Peel Transfer Paper (A3)*
EPSON Photo Quality Ink Jet Paper (A4) EPSON Photo Quality Ink Jet Paper (Letter) EPSON Photo Quality Ink Jet Paper (Legal) EPSON Photo Quality Ink Jet Paper (A3)* EPSON Photo Quality Ink Jet Paper (Super A3/B)* EPSON Photo Quality Ink Jet Paper (B)*
S041059/S041025 S041060/S041028 S041065/S041046 S041066/S041047
S041154 S041153/S041155 S041238
S041061/S041026 S041062/S041029 S041067/S041048 S041068/S041045 S041069/S041043 S041070/S041044
Table 1-1. Consumable Products (continued)
Product Name Code
EPSON Photo Quality Ink Jet Cards (A6) EPSON Photo Quality Ink Jet Cards(5x8”) EPSON Photo Quality Ink Jet Cards(8x10”)
EPSON Photo Quality Self Adhesive Sheet (A4) S041106 EPSON Ink Jet Note Cards A6 (with envelops) S041147 EPSON Ink Jet Greeting Cards 5x8” (with envelopes)
EPSON Ink Jet Greeting Cards 8x10” (with envelopes) EPSON Matte Paper-Heavyweight (A4)
EPSON Matte Paper-Heavyweight (Letter) EPSON Matte Paper-Heavyweight (A3)*
EPSON Matte Paper-Heavyweight (Super A3/Super B)*
EPSON Photo Paper (A4) EPSON Photo Paper (Letter) EPSON Photo Paper (A3)* EPSON Photo Paper (Super A3/Super B)* EPSON Photo Paper (B)* EPSON Photo Paper (4x6”) EPSON Photo Paper (100 x 150 mm) EPSON Photo Paper (200 x 300 mm) EPSON Photo Paper (89 mmx 7M) EPSON Photo Paper (100 mm x 8M) EPSON Photo Paper (210 mm x 10M) EPSON Photo Paper (329 mm x 10M)*
EPSON Panoramic Photo Paper (210 x 594 mm) S041145 EPSON Photo Paper Cards (A4) S041177
S041054 S041121 S041122
S041148 S041149
S041256/S041258/ S041259
S041257 S041260/S041261/
S041262 S041263/S041264/
S041265 S041140
S041141 S041142 S041143 S041156 S041134 S041255 S041254 S041281 S041279 S041280 S041233
PRODUCT DESCRIPTIONS Overview 12
EPSON Stylus PHOTO 890/1280/1290 Revision C
Table 1-1. Consumable Products (continued)
Product Name Code
Photo Quality Glossy Film (A4) Photo Quality Glossy Film (Letter) Photo Quality Glossy Film (A3)* Photo Quality Glossy Film (Super A3/B)* Photo Quality Glossy Film (B)* Photo Quality Glossy Film (A6)
S041071 S041072 S041073 S041074 S041075 S041107
EPSON Photo Stickers 16 (A6) EPSON Photo Stickers 4 (A6)
EPSON Ink Jet Transparencies (A4) EPSON Ink Jet Transparencies (Letter)
EPSON Premium Glossy Photo Paper (A4) EPSON Premium Glossy Photo Paper (Letter) EPSON Premium Glossy Photo Paper (A3)* EPSON Premium Glossy Photo Paper (B)* EPSON Premium Glossy Photo Paper (Super A3/ SuperB)*
EPSON Ink Jet Back Light Film (A3)* S041131
S041144 S041176
S041063 S041064
S041287/S041297 S041286 S041288 S041290 S041289
OPTIONS
Table 1-2. Options
Product Name Code
Parallel Interface cable (shielded) C83602* USB I/F Interface cable (shielded) C83623* Roll Paper Holder C81106*
* The asterisks are substitutions for the last digits of the product name, which may vary by
country.
PRODUCT DESCRIPTIONS Overview 13
EPSON Stylus PHOTO 890/1280/1290 Revision C

1.2 Basic Specifications

1.2.1 Printing Specification

Print Method: On demand ink jet
Nozzle Configuration
Monochrome: 48 nozzles (120 dpi)
Color: 48 nozzles x 5 (Cyan, Magenta, Yellow, Light cyan,
Light magenta) (120 dpi)
The following figure shows nozzle configuration viewed from the back of the printhead:
* The value is the speed of normal-dot printing.
Raster Graphic Mode
Table 1-4. Raster Graphics Mode
Model
Stylus PHOTO 890
Stylus PHOTO
1280/1290
Horizontal Resolution
180 dpi
360 dpi
720 dpi
180 dpi
360 dpi
720 dpi
Printable
Area
209.8mm/
8.26”
209.8mm/
8.26”
209.8mm/
8.26”
322.986mm/
12.716”
322.986mm/
12.716”
322.986mm/
12.716”

1.2.2 Control Code

ESC/P Raster command
Available Dot CR Speed
1488 23.8/19 IPS
2976 23.8/19 IPS
5952 19 IPS
2289 23.8/19 IPS
4578 23.8/19 IPS
9156 19 IPS
Figure 1-3. Nozzle Configuration
Print Direction Bi-direction with logic seeking
Print Speed & Printable Columns
Character Mode
Table 1-3. Character Mode
Model Character Pitch Printable Columns LQ Speed
Stylus PHOTO 890 10 CPI (Pica) 80 238CPS* Stylus PHOTO 1280/
1290
10 CPI (Pica) 127 238CPS*
EPSON Remote command

1.2.3 Paper Feeding

Feeding method: Friction feed with ASF
Paper Path: Cut-sheet ASF (top entry, front out)
Feed Speed: 110mm/sec (10.16mm feed)
152.4mm(6.0inch)/sec (Fast, continues feed)

1.2.4 Input Data Buffer

256 KB
PRODUCT DESCRIPTIONS Basic Specifications 14
EPSON Stylus PHOTO 890/1280/1290 Revision C

1.2.5 Paper Specifications

The asterisk(*) indicates Stylus PHOTO 1280/1290 use only.
CUT SHEET
Size: See the table below:
Table 1-5. Paper Specifications - Cut Sheet
Size Specifications (Width x Length)
*
A3
A4 210 mm (8.3”) x 297 mm (11.7”) A5 148 mm x 210 mm A6 148mm x 105 mm
*
B
Letter 216 mm (8.5”) x 279 mm (11.0”)
Half Letter 139.7 mm x 215.9 mm
Legal 216 mm (8.5”) x 356 mm (14.0”)
Executive 184.2 mm (7.25”) x 266.7 mm (10.5”)
2L 178 mm x 127 mm
L 127 mm x 127 mm
5” x 8” 127 mm x 203 mm
8” x 10” 203 mm x 254 mm
Double Side A4 210 mm x 297 mm
297mm (11.7”) x 420mm (16.5”)
279 mm x 432
ENVELOPE
Size (Width x Length):
#10 241.3mm (9 1/2”) x 104.8mm(4 1/8”) DL 220mm (8.7”) x 110mm (4.3”) C6 162mm (6.4”) x 114mm (4.5”) 220 x 132 220mm x 132 mm
Thickness: 0.16mm (0.006”) - 0.52mm (0.02”)
Weight: 45g/m2 (12Ib.) - 75g/m2 (20Ib.)
Quality: Bond paper, PPC, Air mail
Note1: Envelope printing is only available at normal temperature. Note 2: Keep the longer side of the envelope horizontally at setting.
1.2.5.1 EPSON Special Media
EPSON offers specifically- designed media for ink jet printers.
PHOTO QUALITY INK JET PAPER
Size (Width x Length):
*
A3+ A3
*
329mm x 483mm
297mm x 420mm A4 210mm x 297mm A6 105mm x 148mm
*
B
210mm x 297mm Letter 216mm x 279mm Legal 216mm x 356mm 5” x 8” 127mm x 203mm 8” x 10” 203mm x 254mm
User Defined 89 to 241.3 mm x 89 to 1117.6 mm
Quality: Plain paper, Bond paper
Thickness: 0.08mm- 0.11mm (0.003”- 0.004”)
(Normal paper)
Weight: 64g/m2 - 90g/m2 (55kg-78kg, 17lb.- 24Ib.)
PRODUCT DESCRIPTIONS Basic Specifications 15
EPSON Stylus PHOTO 890/1280/1290 Revision C
360 DPI INK JET PAPER
Size (Width x Length):
A3+ A3
*
*
A4 210mm x 297mm A6 105mm x 148mm Letter 216mm x 279mm
INK JET TRANSPARENCIES
Size (Width x Length):
A4 210mm x 297mm Letter 216mm x 279mm
PHOTO QUALITY GLOSSY FILM
Size (Width x Length):
*
A3+
*
A3 A4 210mm x 297mm A6 105mm x 148mm
*
B Letter 216mm x 279mm
329mm x 483mm 297mm x 420mm
329mm x 483mm 297mm x 420mm
210mm x 297mm
200 x 300mm 216mm x 338mm(cut-line) Roll Paper (89mm x 7m, 100mm x 8m,
210mm x 10m, 329mm x 10m
PHOTO QUALITY ADHESIVE SHEET
Size (Width x Length):
A4 210mm x 297mm Letter 216mm x 279mm
IRON-ON COOL PEEL TRANSFER PAPER
Size (Width x Length):
A3
*
297mm x 420mm A4 210mm x 297mm Letter 216mm x 279mm
PHOTO STICKERS
Size (Width x Length):
A6 105mm x 148mm /16 A6 105mm x 148mm /4
MATTE PAPER-HEAVYWEIGHT
*
)
PHOTO PAPER
Size (width x length):
*
+A3
*
A3 A4 210mm x 297mm
*
A6
*
B Letter 216mm x 279mm
329mm x 483mm 297mm x 420mm
105mm x 148mm
210mm x 297mm
Size (Width x Length):
*
A3+ A3
*
329mm x 483mm
297mm x 420mm A4 210mm x 297mm
*
B
210mm x 297mm Letter 216mm x 279mm 100mm x 150mm Roll Paper (89mm x 7m, 100mm x 8m,
210mm x 10m, 329mm x 10m
*
) Photo Paper Card 2 175.4mm x 113.6mm (cut-line) Panoramic Photo Paper 210mm x 594mm
152.4mm (6“) x 101.6mm (4“)(no cut-line) 100mm x 150mm
PRODUCT DESCRIPTIONS Basic Specifications 16
EPSON Stylus PHOTO 890/1280/1290 Revision C
PREMIUM GLOSSY PHOTO PAPER
Size (Width x Length):
+A3 A3
*
*
329mm x 483mm 297mm x 420mm
A4 210mm x 297mm
*
B
210mm x 297mm Letter 216mm x 279mm Roll Paper (89mm x 7m, 100mm x 8m,
127mm x 8m*,210mm x 10m,
329mm x 10m
INK JET BACK LIGHT FILM
Size (Width x Length):
A3
*
297mm x 420mm

1.2.6 Printing Area

1.2.6.1 Cut Sheet
See the figure below and the following tables for the printing area for Stylus PHOTO 890/Stylus PHOTO 1280/1290.
PW
LM
*
)
Printable Area
RM
TM
PL
BM
Figure 1-4. Printable Area for Cut Sheet
PRODUCT DESCRIPTIONS Basic Specifications 17
EPSON Stylus PHOTO 890/1280/1290 Revision C
Table 1-6. Printing Area
Left Margin
Paper Size
A3*
A3+*
A4
Letter
B5
Legal
Statement
Exclusive
*
: Stylus PHOTO 1290 only.
*1
:Bottom margin can be reduced to 3mm when paper dimension is
(min.)
3 mm (0.12”)
3 mm (0.12”)
3 mm (0.12”)
3 mm (0.12”)
3 mm (0.12”)
3 mm (0.12”)
3 mm (0.12”)
3 mm (0.12”)
*2
*2
*2
*2
*2
*2
*2
*2
defined by using command, otherwise it remains 14mm. As for an area between 3mm and 14mm margin, print quality may decline.
*2
: Zero mm can be set by special command.
Right Margin
(min.)
Top Margin
(min.)
3 mm (0.12”)*23 mm (0.12”)
3 mm (0.12”)*23 mm (0.12”)
3 mm (0.12”)*23 mm (0.12”)
3 mm (0.12”)*23 mm (0.12”)
3 mm (0.12”)*23 mm (0.12”)
3 mm (0.12”)*23 mm (0.12”)
3 mm (0.12”)*23 mm (0.12”)
3 mm (0.12”)*23 mm (0.12”)
*2
*2
*2
*2
*2
*2
*2
*2
Bottom Margin
(min.)
14 mm (0.54”) / 3mm (0.12”)
*1*2
14 mm (0.54”) / 3mm (0.12”)
*1*2
14 mm (0.54”) / 3mm (0.12”)
*1*2
14 mm (0.54”) / 3mm (0.12”)
*1*2
14 mm (0.54”) / 3mm (0.12”)
*1*2
14 mm (0.54”) / 3mm (0.12”)
*1*2
14 mm (0.54”) / 3mm (0.12”)
*1*2
14 mm (0.54”) / 3mm (0.12”)
*1*2
1.2.6.2 Envelopes
LM
Printable Area
Figure 1-5. Printable Area for Envelopes
Table 1-7. Envelope Margin
Left Margin
Size
(min.)
#10 3 mm (0.12”) 28 mm (1.10”) 3 mm (0.12”) 14 mm (0.55”)
DL 3 mm (0.12”) 7 mm (0.28”) 3 mm (0.12”) 14 mm (0.55”)
Right Margin
(min.)
Top Margin
(min.)
Bottom Margin
RM
TM
BM
(min.)
C6 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) 14 mm (0.55”)

1.2.7 Adjust Lever

Set the adjust lever according to the type of paper as shown in the following table.
Table 1-8. Adjust Lever Setting Position
Paper Setting Position Gap
Cut sheet, OHP Sheet, Label, Postcard
Envelope Rear (+) +0.9 mm
PRODUCT DESCRIPTIONS Basic Specifications 18
Front (0) 0 mm
EPSON Stylus PHOTO 890/1280/1290 Revision C

1.2.8 Ink Cartridge

BLACK INK CARTRIDGE
The black ink cartridge specifications for Stylus PHOTO 890 and Stylus PHOTO 1280/1290 are common.
Type: Exclusive Cartridge
Color: Black
Print Capacity: 540 pages/A4
(ISO/IEC 10561 Letter Pattern at 360 dpi)
Ink Life: 2 years from the indicated date of production
Storage Temperature
Packed (in transit): -30 to 60 oC (within a month at 40 oC, within 120
hours at 60
Packed (storage): -30 to 40 oC (within a month at 40 oC)
Installed: -20 oC to 40 oC (within a month at 40 oC)
Dimension: 20.1 mm (W) x 66.85 mm (D) x 38.5 m m (H)
o
C)
COLOR INK CARTRIDGE
Note some of the color ink specifications for the Stylus PHOTO 890 and Stylus PHOTO 1280/1290 are different as indicated.
Type: Exclusive Cartridge
Color: Magenta, Cyan, Yellow, Light Cyan,
Light Magenta
Print Capacity:
Stylus PHOTO 890 220 pages / A4 (360 dpi, 5% duty each color) Stylus PHOTO 1280/1290330 pages / A4 (360 dpi, 5% duty each color)
Ink Life: 2 years from the indicated date of production
Storage Temperature
Packed (in transit): -30 to 60 oC (within a month at 40 oC, within 120 hours
Packed (storage): -30 to 40 oC (within a month at 40 oC)
Installed: -20 oC to 40 oC (within a month at 40 oC)
Dimension:
Stylus PHOTO 890 49.1 mm (W) x 66.85 mm (D) x 38.5 mm (H) Stylus PHOTO 1280/129049.1 mm (W) x 84.05 mm (D) x 41.8mm (H)
at 60
o
C)
PRODUCT DESCRIPTIONS Basic Specifications 19
EPSON Stylus PHOTO 890/1280/1290 Revision C

1.2.9 Electric Specification

120V VERSION
Rated Voltage: AC120V
Input Voltage Range: AC99∼132V
Rated Frequency Range: 50∼ 60Hz
Input Frequency Range: 49.5∼ 60.5Hz
Rated Current: 0.4A(Max0.7A)
Power Consumption: Approx. 15W (ISO10561 Letter Pattern)
Approx. 3W in standby mode Energy Star compliant
Insulation Resistance: 10M ohms min.
(between AC line and chassis, DC 500V)
Dielectric Strength: AC 1000V rms. 1 minute or
AC 1200V rms. 1 second (between AC line and chassis)
220 ∼ 240V VERSION
Rated Voltage: AC220V∼240V

1.2.10 Reliability

Total Print Volume Black: 25,000 pages (A4, Letter)
Color: 10,000 pages (A4, Letter)
Printhead Life: 3000 million dots/nozzl e
Input Voltage Range: AC198∼264V
Rated Frequency Range: 50∼60Hz
Input Frequency Range: 49.5∼60.5Hz
Rated Current: 0.2 A(Max0.35A)
Power Consumption: Approx. 15W (ISO10561 Letter Pattern)
Approx. 3W in standby mode Energy Star compliant
Insulation Resistance: 10M ohms min.
(between AC line and chassis, DC 500V)
Dielectric Strength: AC 1500V rms. 1 minute
(between AC line and chassis)
PRODUCT DESCRIPTIONS Basic Specifications 20
EPSON Stylus PHOTO 890/1280/1290 Revision C

1.2.11 Environmental Condition

TEMPERATURE
Operating: 10 to 35°C
Non-Operating: -20 to 60°C
Within 1 month at 40°C /120 hours at 60°C
*1
: In a shipment container.
*2
: Refer to Figure 1-6 "Temperature/Humidity Range" for condition.
HUMIDITY
Operating: 20 to 80% RH (without condensation)
Not-Operating: 5 to 85% RH (without condensation)
90
80 70 60
Humidity (%)
50 40 30 20
*2
*1
RESISTANCE TO SHOCK
Operating: 1G, within 1 ms, X, Y, Z directions
Non-operating: 2G, within 2 ms, X, Y, Z di recti ons
*1
: In a shipment container.
*1
RESISTANCE TO VIBRATION
Operating: 0.15G
Non-operating: 0.5 0G
*1
: In a shipment container.
*2
*1
C A U T I O N
When storing the printer, make sure the printhead is capped.
When transporting the printer, ensure the ink cartridges are installed in the printer and the printhead is capped.
If the printer power is off with the printhead left uncapped, turn the printer on with the ink cartridges installed, cap the printhead, and turn the printer off.
Ink freezes at below -4°C. It will be usable again after keeping it for about three hours at 25
*1
°
C.
10
20
27
30
35
40
Temperature (°C)
Figure 1-6. Temperature/Humidity Range
*1
: In a shipment container.
*2
: Refer to Figure 1-6 "Temperature/Humidity Range" for condition.
PRODUCT DESCRIPTIONS Basic Specifications 21
EPSON Stylus PHOTO 890/1280/1290 Revision C

1.3 Interface

The EPSON Stylus PHOTO 890/1280/1290 provides USB and parallel interfaces as standard.

1.3.1 Parallel Interface (Forward Channel)

Transmission Mode: 8 bit parallel, IEEE-1284 compatibility mode
Synchronization: By STROBE pulse
Handshaking: By BUSY and ACKNLG signal
Signal Level: TTL compatible level
Adaptable Connector: 57-30360 (amphenol) or equivalent
DATA
-STROBE
BUSY
-ACKNLG
data byte n
hold
t
stb
ready
t
setup
t
t
busy
t
t
reply
ack
t
t
Figure 1-7. Data Transmission Timing
t
nbusy
data byte n+1
next
Table 1-9. Parameters
Parameter Minimum Maximum
tsetup 500ns -
thold 500ns -
tstb 500ns -
tready 0 -
tbusy - 500ns tt-out* - 120ns tt-in** - 200ns
treply 0 -
tack 500ns 10us
tnbusy 0 -
tnext 0 -
* Rise and fall time of every output signal. ** Rise and fall time of every input signal. *** Typical timing for tack is shown on the following page.
Table 1-10. Typical Time of Tack
Parallel I/F Mode Typical Time of tack
High Speed 0.5us
Normal Speed 2us
PRODUCT DESCRIPTIONS Interface 22
EPSON Stylus PHOTO 890/1280/1290 Revision C
Table 1-11.
Signal Level: TTL Compatible (IEEE-1284 level 1 device)
Parameter Minimum Maximum Condition
VOH* - 5.5V VOL* -0.5V -
IOH* - 0.32mA VOH = 2.4V IOL* - 12mA VOL = 0.4V
CO - 50pF VIH - 2.0V VIL 0.8V -
IIH - 0.32mA VIH = 2.0V
IIL - 12mA VIL = 0.8V CI - 50pF
* A low logic level on the Logic H signal is 2.0V or less when the printer is turned off,
and this signal is equal to or exceeding 3.0V when the printer is turned on. The receiver shall provide an impedance equivalent to 7.5K ohm to ground.
PRODUCT DESCRIPTIONS Interface 23
EPSON Stylus PHOTO 890/1280/1290 Revision C
Table 1-12. Connector Pin Assignment and Signals
Pin No. Signal Name
1 -STROBE 19 In The strobe pulse. Read-in of data is performed at the falling edge of this pulse.
2-9 DATA0-DATA7 20-27 In
10 -ACKNLG 28 Out This signal is a negative pulse indicating that the printer can accept data again. 11 BUSY 29 Out A high signal indicates that the printer cannot receive data. 12 PE 28 Out A high signal indicates paper-out error. 13 SLCT 28 Out Always at high level when the printer is turned on. 14 -AFXT 30 In Not used. 17 Chassis GND - - Chassis GND 18 Logic H - Out Pulled up to +5V via 3.9K ohm resister.
31 -INIT 30 In
32 -ERROR 29 Out A low signal indicates printer error condition.
Return
GND Pin
In/Out Functional Description
The DATA0 through DATA7 signals represent data bits 0 to 7, respectively. Each signal is at high level when data is logical 1 and low level when data is logical 0.
The falling edge of a negative pulse or a low signal on this line causes the printer to initialize. Minimum 50us pulse is necessary.
35 +5 - Out Pulled up to +5V via 3.3K ohm resister. 36 -SLIN 30 In Not used.
16,33 19-30
15,34 NC - - Not connected.
GND - - Signal GND
NOTE: In/Out refers to the direction of signal flow seen from the printer side.
PRODUCT DESCRIPTIONS Interface 24
EPSON Stylus PHOTO 890/1280/1290 Revision C

1.3.2 Parallel Interface (Reserve Channel)

Transmission Mode: IEEE-1284 nibble mode
Adaptable Connector See forward channel.
Synchronization: Refer to the IEEE-1284 specification
Pin No. Signal Name
1 HostClk 19 In Host clock signal.
2-9 DATA0-DATA7 20-27 In
10 PtrClk 28 Out Printer clock signal. 11 PtrBusy / DataBit-3,7 29 Out Printer busy signal and reverse channel transfer data bit 3 or 7. 12 AckDataReq / DataBit-2,6 28 Out Acknowledge data request signal and reverse channel transfer data bit 2 or 6. 13 Xflag / DataBit-1,5 28 Out X-flag signal and reverse channel transfer data bit 1 or 5. 14 HostBusy 30 In Host busy signal. 31 -INIT 30 In Not used. 32 -DataAvail / DataBit-0,4 29 Out Data available signal and reverse channel transfer data bit 0 or 4. 36 1284-Active 30 In 1284 active signal.
Handshaking: Refer to the IEEE-1284 specification
Data Trans. Timing: Refer to the IEEE-1284 specification
Signal Level: IEEE-1284 level 1 device (See forward channel.)
Table 1-13. Connector Pin Assignment and Signals
Return
GND Pin
In/Out Functional Description
The DATA0 through DATA7 signals represent data bits 0 to 7, respectively. Each signal is at high level when data is logical 1 and low level when data is logical 0. These signals are used to transfer the 1284 extensibility request values to the printer.
18 Logic-H - Out Pulled up to +5V via 3.9K ohm resistor. 35 +5V - Out Pulled up to +5V via 3.3K ohm resistor. 17 Chassis GND - - Chassis GND
16,33, 19-30 GND - - Signal GND
15,34 NC - - Not connected
NOTE: In/Out refers to the direction of signal flow from the printer’s point of view.
Extensibility Request: The printer responds affirmatively when the extensibility request values are 00H or 04H, which means:
00H: Request Nibble Mode Reverse Channel Transfer.
04H: Request Device ID;
Return Data Using Nibble Mode Rev Channel Transfer.
PRODUCT DESCRIPTIONS Interface 25
EPSON Stylus PHOTO 890/1280/1290 Revision C
Device ID: The printer sends the following device ID string when requested.
When IEEE1284.4 is enabled,
<00H><5AH>
*1
/ <00H><5CH>
*2
MFG: EPSON CMD: ESCPL2,BDC,D4 MDL: Stylus[SP]Photo[SP]890
/Stylus[SP]Photo[SP]1290 CLS: PRINTER DES: EPSONStylus[SP]Photo[SP]890
/EPSONStylus[SP]Photo[SP]1290
When IEEE1284.4 is enabled,
<00H><57H>
*1
/ <00H> <59H>
*2
MFG: EPSON CMD: ESCPL2,BDC,D4 MDL: Stylus[SP]Photo[SP]890
/Stylus[SP]Photo[SP]1290 CLS: PRINTER DES: EPSONStylus[SP]Photo[SP]890
/EPSONStylus[SP]Photo[SP]1290
*1
: Stylus PHOTO 890 only
*2
: Stylus PHOTO 1280/1290 only

1.3.3 USB Interface

Standard: Based on:
“Universal Serial Bus Specifications Rev. 1.1” “Universal Serial Bus Device Class Definition for Printing Devices Version 1.1”
Bit rate: 12Mbps (Full Speed Device)
Data encoding: NRZI
Adaptable connector: USB Series B
Recommended cable length:2 meters
Table 1-14. Connector Pin Assignment and Signals
Pin No. Signal Name I/O Function Description
1VCC -
2 -Data Bi-D Data
3+DataBi-D
4 Ground - Cable ground
Pin #2
Cable power. Max. power consumption is 2mA.
Data, pull up to +3.3 V via 1.5K ohm resistor.
Pin #1
NOTE 1:[00H] denotes a hexadecimal value of zero. NOTE 2:MDL value depends on the EEPROM setting. NOTE 3:CMD value depends on the IEEE1284.4 setting.
Pin #3
Pin #4
Figure 1-8. USB Pin Assignment
PRODUCT DESCRIPTIONS Interface 26
EPSON Stylus PHOTO 890/1280/1290 Revision C

1.3.4 Prevention of Data Transfer Time-out

Generally, hosts abandon data transfer to peripherals when the peripheral is in the busy state for dozens of seconds continuously. To prevent this kind of time-out, the printer receives data very slowly, several bytes per minute, even if the printer is in the busy state. The slowdown starts when the remaining input buffer becomes several hundreds of bytes, and the printer finally gets into the busy state continuously when the input buffer is full. USB and IEEE1284.4 on the parallel interface do not require such function.
On An initial state is IEEE1284.4 communication and data that received it by the time it is able to take synchronization by magic string (1284.4 synchronous commands) is discarded.
Off An initial state is compatible interface and never starts IEEE1284.4 communication even if magic strings (1284.4 synchronous commands) are received.

1.3.5 Interface Selection

The printer has two built-in interfaces: the USB and parallel interface. These interfaces are selected automatically.
Automatic Selection In this automatic interface selection mode, the printer is initialized to the idle state while scanning which interface receives data when it is powered on. Then the interface which received data first is selected. When the host stops data transfer and the printer is in the stand-by state for seconds, the printer is returned to the idle state. As long as the host sends data or the printer interface is in the busy state, the selected interface is let as it is.
Interface State and Interface Selection When the parallel interface is not selected, the interface gets into the busy state. When the printer is initialized or returned to the idle state, the parallel interface gets into the ready state. Note that the interrupt signal such as the -INIT signal on the parallel interface is not effective while that interface is not selected.

1.3.6 IEEE1284.4 Protocol

The packet protocol described by IEEE1284.4 standard allows a device to carry on multiple exchanges or conversations which contain data and/or control information with another device at the same time across a single point-to-point link. The protocol is not, however, a device control language. It does provide basic transport-level flow control and multiplexing services. The multiplexed logical channels are independent of each other and blocking of one has no effect on the others. The protocol operates over IEEE1284.
Automatic Selection An initial state is compatible interface and starts IEEE1284.4 communication when magic strings (1284.4 synchronous commands) are received.
PRODUCT DESCRIPTIONS Interface 27
EPSON Stylus PHOTO 890/1280/1290 Revision C

1.4 Operations

1.4.1 Buttons

Roll Paper button
Maintenance button
Ink Cartridge replacement button
Power button

1.4.2 Indicators

Power
Lights when the operating switch is “ON” and AC power is supplied.
Error
Lights during the error condition, and blinks during the ink low condition.
Ink Cartridge replacement button
Error indicator
Power indicator
Power button

1.4.3 Panel Functions

Table 1-15. Panel Functions
Buttons Function
Maintenance
Roll Paper
Ink Cartridge Replacement
*1
: Press the button for 3 seconds.
Table 1-16. Power On Panel Functions
Buttons Pressing with Power On Function
Maintenance • Starts status printing
Roll Paper
Maintenance
+
Roll Paper
• Loads or ejects paper.
• Returns a carriage to the home position when the carriage is at the ink cartridge replacement position.
*1
• Starts the head cleaning
• Returns from an error condition.
• Loads or ejects Roll Paper. (Back Out feed*1)
• Feeds and returns from the Tear-Off operation.
• Returns a carriage to the home position when the carriage is at the ink cartridge replacement position.
• Starts the Ink Cartridge change sequence. Moves the carriage to the carriage change position.
• Returns a carriage to the home position when the carriage is at the ink cartridge replacement position.
• Changes code pages /select IEEE1284.4 mode for parallel I/F*3.
• Enters the special settings mode. (Factory use only).
.
*2
.
*2
: According to the content of 1BH of the EEPROM, one of the following
actions needs to be carried out. (See Table 1-17 on page 29)
Roll Paper button
Maintenance button
*3
: Do not mention the information to the users.
Figure 1-9. Control Panel
PRODUCT DESCRIPTIONS Operations 28
EPSON Stylus PHOTO 890/1280/1290 Revision C
Table 1-17. Content of 1BH of EEPROM
[bit7] [bit6] Actions
00 11 01 Starts the hex-dump mode. 10 Starts the self test mode.
*4: Factory default setting.
Prints firmware version, ink counter, selected code page and nozzle check pattern.

1.4.4 Special Setting Mode

To enter the special setting mode, press the Maintenance button and the Roll Paper button while turning on the printer until the Power indicator blinks. While it is blinking (for 3 seconds), press the specified button to activate the desirable setting mode.
NOTE: The special setting mode is not described in the user’s manual.
Table 1-18. Special Setting Mode
Buttons Functions
Maintenance • Initializes the EEPROM and Timer IC.
Roll Paper
*1
: Pressing the button for 10 seconds.
EEPROM/Timer IC Reset
The following will be reset when this operation is executed.
Interface selection (04H)
CL Time (68H, 69H)
Power Off timer (6AH, 6BH)
Waste Ink Counter Reset
The following will be reset when this operation is executed.
*1
• Resets the ink overflow counter (Protection Counter) in the EEPROM.
Ink counter A0 (6CH, 6DH)
Ink counter A80 (6EH, 6FH)
PRODUCT DESCRIPTIONS Operations 29
EPSON Stylus PHOTO 890/1280/1290 Revision C

1.4.5 Printer Initialization

EPSON Stylus PHOTO 890/1280/1290 executes initialization by using 3 methods mentioned below.
1. Hard Initialization The Hard Unitization will be performed when the printer is turned on or recognizes the cold reset command. (remote RS command) The following will be performed during initialization.
Initializes printer mechanism.
Clears input data buffer.
Clears print buffer.
Sets default values.
2. Software Initialization The ESC@ command also initializes the printer. The following will be performed during initialization.
Clears print buffer.
Sets default values.
3. Panel Initialization The Panel Initialization will be performed if the printer is turned off and back on within 10 seconds, or *INIT signal (negative pulse) is input. The following will be performed during initialization.

1.4.6 Initialization Value

When the printer is initialized, it clears the following settings to their initialization values. However, panel setting values, default setting values, and values set by the remote command remain as they are.
Top of page Current TOP
Line feed 4.23mm(1/6 inch)
Right margin 80 columns (Stylus PHOTO 890)
127 columns (Stylus PHOTO 1280/1290)
Left margin 1st column
Character pitch 10 cpi
Print mode Text mode (Non graphics mode)
Caps the printer head.
Ejects paper.
Clears input data buffer.
Clears print buffer.
Sets default values.
PRODUCT DESCRIPTIONS Operations 30
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