T50
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SERVICE MANUAL
Color Inkjet Printer
Epson Stylus Photo R280/R285/R290
Epson Artisan 50/
Epson Stylus Photo T50/T59/T60/P50
Confidential
SEIJ07-004
Notice:
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 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 © 2009 SEIKO EPSON CORPORATION.
IJP LP CS Quality Assurance Department
Confidential
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. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs OR
OTHER NON-APPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.
6. WHEN USING COMPRESSED AIR PRODUCTS; SUCH AS AIR DUSTER, FOR CLEANING DURING REPAIR AND MAINTENANCE, THE USE OF SUCH
PRODUCTS CONTAINING FLAMMABLE GAS IS PROHIBITED.
Confidential
About This Manual
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
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the printer. 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.
Manual Configuration
This manual consists of six chapters and Appendix.
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
Describes the step-by-step procedures for the troubleshooting.
CHAPTER 4.DISASSEMBLY / ASSEMBLY
Describes the step-by-step procedures for disassembling and assembling
the product.
CHAPTER 5.ADJUSTMENT
Provides Epson-approved methods for adjustment.
CHAPTER 6.MAINTENANCE
Provides preventive maintenance procedures and the lists of Epsonapproved lubricants and adhesives required for servicing the product.
APPENDIX Provides the following additional information for reference:
• Exploded Diagram
• Parts List
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.
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.
Indicates that a particular task must be carried out according to a certain
standard after disassembly and before re-assembly, otherwise the quality of the components in question may be adversely affected.
Confidential
Revision Status
Revision Date of Issue Description
A August 8, 2007 First Release
B September 28, 2007 [Chapter 4]
• "Main Board Unit" (Page 64): error correction.
[Chapter 5]
• "Overview" (Page 115): error correction.
C May 19, 2009 Revised Contents
[All chapters]
• Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 added.
[Chapter 1]
• "1.1 Features (p.9)" is updated.
• "1.2.3 Print Mode (p.11)" is updated.
• "1.2.4 Supported Paper (p.13)" is updated.
• "1.3 Interface (p.16)" is updated.
• "1.4.1 Electrical Specifications (p.17)" is updated.
• "1.4.4 Acoustic Noise (p.18)" is updated.
• "1.4.5 Safety Approvals (Safety standards/EMI) (p.18)" is updated.
[Chapter 2]
• "2.3 Power-On Sequence (p.26)" is added.
• "2.4 Printer Initialization (p.28)" is added.
• "2.2 Electrical Circuit Operating Principles" is deleted.
[Chapter 4]
• "4.1.9 Procedural Differences (p.59)" is added.
• "4.5 Disassembly/reassembly procedures of Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 (p.99)" is added.
[Chapter 5]
• "5.3 Banding Reduction System (BRS) Adjustment / Paper Feed Amount Profile (PFP) Correction (p.115)" is updated.
[Chapter 7]
• "7.2 Electrical Circuits" is deleted.
Confidential
EPSON Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
CONTENTS
Chapter 1 Product Description
1.1 Features................................................................................................................. 9
1.2 Printing Specifications........................................................................................ 10
1.2.1 Basic Specifications................................................................................. 10
1.2.2 Ink Cartridge............................................................................................ 10
1.2.3 Print Mode ............................................................................................... 11
1.2.4 Supported Paper....................................................................................... 13
1.2.5 Printing Area ........................................................................................... 15
1.3 Interface .............................................................................................................. 16
1.4 General Specifications........................................................................................ 17
1.4.1 Electrical Specifications .......................................................................... 17
1.4.2 Environmental Conditions....................................................................... 17
1.4.3 Durability................................................................................................. 18
1.4.4 Acoustic Noise......................................................................................... 18
1.4.5 Safety Approvals (Safety standards/EMI) ............................................... 18
1.5 Operation Buttons & Indicators (LEDs)............................................................. 19
1.5.1 Operation Buttons.................................................................................... 19
1.5.2 Indicators (LEDs) .................................................................................... 19
1.5.3 Operation Buttons & LEDs Functions .................................................... 19
1.5.4 Errors & Remedies .................................................................................. 21
Chapter 2 Operating Principles
2.1 Overview ............................................................................................................ 23
2.1.1 Printer Mechanism................................................................................... 23
2.1.2 Motors & Sensors .................................................................................... 24
2.2
Banding Reduction System (BRS) / Paper Feed Amount Profile Correction (PFP)
2.3 Power-On Sequence ........................................................................................... 26
2.4 Printer Initialization............................................................................................ 28
25
Chapter 3 Troubleshooting
3.1 Overview ............................................................................................................ 30
3.1.1 Troubleshooting on Motors and Sensors................................................. 30
3.2 Warning / Error Indications................................................................................ 31
3.2.1 Error Indication Method .......................................................................... 31
3.3 Troubleshooting by Error Message .................................................................... 33
3.3.1 Troubleshooting Problems with Error Messages .................................... 33
3.4 Troubleshooting by Symptom ............................................................................ 44
3.4.1 Problems in Printing Operation ............................................................... 44
3.4.2 Power Problems....................................................................................... 49
3.4.3 Ink-related Problems ............................................................................... 49
3.4.4 Problems with Interfaces ......................................................................... 51
Chapter 4 Disassembly/Assembly
4.1 Overview ............................................................................................................ 53
4.1.1 Precautions .............................................................................................. 53
4.1.2 Tools ........................................................................................................ 54
4.1.3 Screws ..................................................................................................... 54
4.1.4 Making a Special Tool for CSIC Board .................................................. 55
4.1.5 Work Completion Checklist .................................................................... 55
4.1.6 Required Preparation before Disassembly .............................................. 58
4.1.7 Orientation Definition ............................................................................. 58
4.1.8 How to Unlock the Carriage.................................................................... 58
4.1.9 Procedural Differences ............................................................................ 59
4.1.10 Disassembly Flowchart ......................................................................... 60
4.2 Removing Exterior Parts/Components............................................................... 61
4.2.1 Printer Cover ........................................................................................... 61
4.2.2 Paper Support Assy ................................................................................. 61
4.2.3 Stacker Assy / Stacker Cover .................................................................. 62
4.2.4 Upper Housing ........................................................................................ 62
4.3 Removing Control Boards.................................................................................. 64
4.3.1 Main Board Unit...................................................................................... 64
4.3.2 Panel Assy/ Cover Open Sensor.............................................................. 67
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EPSON Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
4.3.3 P/S Assy................................................................................................... 71
4.4 Disassembling the Printer Mechanism ............................................................... 72
4.4.1 Removing the Printer Mechanism ........................................................... 72
4.4.2 Printhead.................................................................................................. 75
4.4.3 CR Scale .................................................................................................. 77
4.4.4 APG Unit ................................................................................................. 78
4.4.5 Waste Ink Tray ........................................................................................ 80
4.4.6 Waste Ink Pad.......................................................................................... 80
4.4.7 Left & Right Guide Stackers / CDR Guide Sensor ................................. 81
4.4.8 Ink System ............................................................................................... 82
4.4.9 EJ Frame Assy......................................................................................... 84
4.4.10 PF Encoder / PF Scale ........................................................................... 86
4.4.11 PF Motor................................................................................................ 87
4.4.12 CR Motor............................................................................................... 87
4.4.13 CR Unit.................................................................................................. 89
4.4.14 ASF Unit................................................................................................ 92
4.4.15 Upper Paper Guide ................................................................................ 94
4.4.16 APG Sensor Assy .................................................................................. 95
4.4.17 Front Paper Guide Assy......................................................................... 96
4.4.18 CDR Tray Sensor .................................................................................. 98
4.5 Disassembly/reassembly procedures of Epson Artisan 50/Epson Stylus Photo T50/
T59/T60/P50....................................................................................................... 99
4.5.1 Panel Assy ............................................................................................... 99
Chapter 6 Maintenance
6.1 Overview .......................................................................................................... 121
6.1.1 Cleaning................................................................................................. 121
6.1.2 Service Maintenance ............................................................................. 121
6.1.3 Lubrication ............................................................................................ 122
Chapter 7 Appendix
7.1 Exploded Diagram / Parts List ......................................................................... 129
Chapter 5 Adjustment
5.1 Adjustment Items and Overview ...................................................................... 104
5.1.1 Servicing Adjustment Item List............................................................. 104
5.1.2 Required Adjustments ........................................................................... 107
5.2 Using the Adjustment Program ........................................................................ 109
5.2.1 Top Margin Adjustment ........................................................................ 109
5.2.2 Head Angular Adjustment ..................................................................... 109
5.2.3 Bi-D Adjustment ................................................................................... 110
5.2.4 PW Adjustment/First Dot Position Adjustment .................................... 111
5.2.5 PF Adjustment ....................................................................................... 112
5.2.6 PG Adjustment ...................................................................................... 113
5.3 Banding Reduction System (BRS) Adjustment / Paper Feed Amount Profile (PFP)
Correction......................................................................................................... 115
5.3.1 Overview ............................................................................................... 115
5.3.2 Adjustment Procedure ........................................................................... 117
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Confidential
PRODUCT DESCRIPTION
CHAPTER
1
Confidential
Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
Paper Support & Stacker are Closed
Paper Support & Stacker are Opened
Epson Stylus Photo R280/R285/R290
Epson Artisan 50/
Epson Stylus Photo T50/T59/T60/P50
Epson Stylus Photo R280/R285/R290
Epson Artisan 50/
Epson Stylus Photo T50/T59/T60/P50
1.1 Features
Epson Stylus Photo R280/R285/R290 and Epson Artisan 50/Epson Stylus Photo T50/
T59/T60/P50 are single-function color ink-jet printers.
The main features are;
High speed & High quality
Maximum print resolution: 5760 (H) x 1440 (V) dpi
Newly developed F3 Mach Turbo II print head achieves higher print speed
than ever.
Six independent dye-ink cartridges enables high-resolution photo printing.
CD and DVD label printing are supported.
Borderless printing on specified EPSON brand paper is available.
Control panel
Simple design with three buttons and three indicators (LED).
Dimensions and weight
Table 1-1. Dimensions and weight
Model
Epson Stylus Photo R280/
Epson Artisan 50/Epson Stylus
Note *1: Paper support and stacker are closed. Rubber feet are included.
R285/R290
Photo T50/T59/T60/P50
*2: Without ink cartridges
Dimensions (W x D x H) mm
450 x 282 x 187 5.4 kg
450 x 289 x 187 5.5 kg
*1
Weight
*2
Figure 1-1. External View
Chapter 1 Product Description 1.1 Features 9
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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
C A U T I O N
1.2 Printing Specifications
1.2.1 Basic Specifications
Table 1-2. Printer Specifications
Item Specifications
Print method On-demand ink jet
Nozzle configuration Black: 90 nozzles
Color: 90 nozzles x 5
(Cyan, Magenta, Yellow, Light Cyan, Light Magenta)
Print direction
Print resolution Horizontal x Vertical (dpi)
Control code
Internal font Character code:Alphanumeric with expanded graphics (PC437)
Paper feed method Friction feed, using one ASF (Auto Sheet Feeder)
Paper path Top feed, front out
Paper feed rates 110 msec (at 25.4 mm feed)
PF interval Programmable in 0.01764 mm (1/1440 inch) steps
Bi-directional minimum distance printing, unidirectional printing
• 360 x 180 • 720 x 540
• 360 x 360 • 720 x 720
• 720 x 360 • 5760 x 1440
• ESC/P Raster command
• EPSON Remote command
ASCII, 20H to 7FH only
Font: EPSON original font
Alphanumeric font: Courier
1.2.2 Ink Cartridge
The product numbers of the EPSON ink cartridges for this printer are shown below.
Table 1-3. Product No. of Ink Cartridges
Color EAI Euro Asia, CISMEA, Latin
Black
Cyan
Magenta
Yellow
Light Cyan
Light Magenta
T0771 (S)
T0781 (SS)
T0772 (S)
T0782 (SS)
T0773 (S)
T0783 (SS)
T0774 (S)
T0784 (SS)
T0775 (S)
T0785 (SS)
T0776 (S)
T0786 (SS)
T0801
T0802
T0803
T0804
T0805
T0806
Shelf life
Two years from production date (if unopened), six months after opening package.
Storage Temperature
Table 1-4. Storage Temperature
Situation Storage Temperature Limit
When stored in individual boxes
When installed in main unit
-20 oC to 40 oC
(-4oF to 104oF)
-20 oC to 40 oC
(-4oF to 104oF)
1 month max. at 40 oC (104oF)
T0811 (S)
T0821 (SS)
T0812 (S)
T0822 (SS)
T0813 (S)
T0823 (SS)
T0814 (S)
T0824 (SS)
T0815 (S)
T0825 (SS)
T0816 (S)
T0826 (SS)
Dimension
12.7 mm (W) x 68 mm (D) x 47 mm (H)
The ink cartridge cannot be refilled.
Do not use expired ink cartridges.
The ink in the ink cartridge freezes at -16 °C (3.2 oF). It takes
about three hours under 25 °C (77
o
F) until the ink thaws and
becomes usable.
Chapter 1 Product Description 1.2 Printing Specifications 10
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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
1.2.3 Print Mode
Media
• Plain paper
• Premium Bright White Paper
(EAI)
• Bright White Inkjet Paper
(others)
• Premium Ink Jet Plain Paper
(others)
• Ultra Premium Photo Paper
Glossy (EAI)
• Ultra Glossy Photo Paper
(others)
• Premium Photo Paper Glossy
(EAI)
• Premium Glossy Photo Paper
(others)
• Premium Photo Paper Semigloss (EAI)
• Premium Semigloss Photo
Paper (others)
• Ultra Premium Photo Paper
Luster (EAI)
• Photo Paper Glossy (EAI)
• Glossy Photo Paper (others)
• Premium Presentation Paper
Matte (EAI)
• Matte Paper Heavy-weight
(others)
• Premium Presentation Paper
Matte Double-sided (EAI)
• Double-Sided Matte paper
(others)
Table 1-5. Print Mode (Color)
Print
Mode
Draft 360x180
Normal 360x360
Photo
Fine
Photo*
Photo*
Super
Photo
Fine 720x360
Photo*
Photo*
Super
Photo
Photo*
Super
Photo
Resolution
2
2
5760x1440
2
2
5760x1440
2
5760x1440
(H x V)
dpi
720x720
720x720
(1.5 pass)
720x720
(2.0 pass)
720x720
(1.5 pass)
720x720
(2.0 pass)
720x720
(2.0 pass)
Dot Size
(400cps)
(360cps)
(240cps)
(240cps)
(280cps)
(200cps)
(240cps)
(240cps)
(280cps)
(200cps)
(280cps)
(200cps)
(cps)*
Eco
MC2-1
MC1-1
MC1-2
MC2-2
MC1-5
MC1-1
MC1-2
MC2-2
MC1-5
MC2-2
MC1-5
1
Weave
Micro
Bi-d
ON OFF N/A
ON OFF N/A
ON ON N/A
ON ON OK
ON ON OK
ON ON OK
ON ON OK
ON ON OK
ON ON OK
ON ON OK
ON ON OK
ON ON OK
Border
less
-
Table 1-5. Print Mode (Color)
Media
Print
Mode
• Presentation Paper Matte (EAI)
• Photo Quality Inkjet Paper
Photo*
(others)
• Envelopes
Normal 360x360
Photo
Fine
• Iron-On Cool Peal Transfer
(EAI)
• Ion-On Cool Peal Transfer
Paper (Other)
• Photo Stickers
Normal
Photo
Fine
Photo*
• CD/DVD Super
Photo
• CD/DVD Premium Surface Super
Photo
Note *1: cps = character per second
*2: In Photo mode, either of 1.5 or 2.0 pass is selected depending on the paper size.
1.5 pass supported size: 4”x6”
2.0 pass supported size: 5”x7”, 8” x 10”, Letter, A4
*3: Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 only
Resolution
2
*3
2
5760x1440
5760x1440
(H x V)
dpi
720x720
(2.0 pass)
720x720
360x360
720x720
720x720
(2.0 pass)
Dot Size
(cps)*
MC2-2
(280cps)
MC2-1
(360cps)
MC1-1
(240cps)
MC2-1
(360cps)
MC1-1
(240cps)
MC2-2
(280cps)
MC1-5
(200cps)
MC1-5
(200cps)
Bi-d
1
ON ON N/A
OFF OFF N/A
OFF ON N/A
ON OFF N/A
OFF ON N/A
ON ON N/A
ON ON N/A
ON ON N/A
Micro
Weave
Border
-
less
Chapter 1 Product Description 1.2 Printing Specifications 11
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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
Table 1-6. Print Mode (Monochrome)
Media
• Plain paper
• Premium Bright White Paper
(EAI)
• Bright White Inkjet Paper
(others)
• Premium Ink Jet Plain Paper
(others)
• Ultra Premium Photo Paper
Glossy (EAI)
• Ultra Glossy Photo Paper
(others)
• Premium Photo Paper Glossy
(EAI)
• Premium Glossy Photo Paper
(others)
• Premium Photo Paper Semigloss (EAI)
• Premium Semigloss Photo
Paper (others)
• Ultra Premium Photo Paper
Luster (EAI)
• Photo Paper Glossy (EAI)
• Glossy Photo Paper (others)
• Premium Presentation Paper
Matte (EAI)
• Matte Paper Heavy-weight
(others)
• Premium Presentation Paper
Matte Double-sided (EAI)
• Double-Sided Matte paper
(others)
Print
Mode
Resolution
(H x V)
dpi
Draft 360x180
Normal 360x360
Photo
Fine
Photo*
Photo*
Super
Photo
2
2
5760x1440
720x720
720x720
(1.5 pass)
720x720
(2.0 pass)
Fine 720x360
720x720
2
Photo*
Photo*
Super
Photo
Photo*
Super
Photo
2
5760x1440
2
5760x1440
(1.5 pass)
720x720
(2.0 pass)
720x720
(2.0 pass)
Dot Size
(cps)*
Eco
(400cps)
MC2-1
(360cps)
MC1-1
(240cps)
MC1-2
(240cps)
MC2-2
(280cps)
MC1-5
(200cps)
MC1-1
(240cps)
MC1-2
(240cps)
MC2-2
(280cps)
MC1-5
(200cps)
MC2-2
(280cps)
MC1-5
(200cps)
1
Weave
Micro
Bi-d
ON OFF N/A
ON OFF N/A
ON ON N/A
ON ON OK
ON ON OK
ON ON OK
ON ON OK
ON ON OK
ON ON OK
ON ON OK
ON ON OK
ON ON OK
Border
less
-
Table 1-6. Print Mode (Monochrome)
Media
Print
Mode
• Presentation Paper Matte (EAI)
• Photo Quality Inkjet Paper
Photo*
(others)
• Envelopes
Normal 360x360
Photo
Fine
• Iron-On Cool Peal Transfer
(EAI)
• Ion-On Cool Peal Transfer
Paper (Other)
• Photo Stickers
Normal
Photo
Fine
Photo*
• CD/DVD Super
Photo
• CD/DVD Premium Surface Super
Photo
Note *1: cps = character per second
*2: In Photo mode, either of 1.5 or 2.0 pass is selected depending on the paper size.
1.5 pass supported size: 4”x6”
2.0 pass supported size: 5”x7”, 8” x 10”, Letter, A4
*3: Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 only
Resolution
2
*3
2
5760x1440
5760x1440
(H x V)
dpi
720x720
(2.0 pass)
720x720
360x360
720x720
720x720
(2.0 pass)
Dot Size
(cps)*
MC2-2
(280cps)
MC2-1
(360cps)
MC1-1
(240cps)
MC2-1
(360cps)
MC1-1
(240cps)
MC2-2
(280cps)
MC1-5
(200cps)
MC1-5
(200cps)
Bi-d
1
ON ON N/A
OFF OFF N/A
OFF ON N/A
ON OFF N/A
OFF ON N/A
ON ON N/A
ON ON N/A
ON ON N/A
Micro
Weave
Border
-
less
Chapter 1 Product Description 1.2 Printing Specifications 12
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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
1.2.4 Supported Paper
The table below lists the paper type and sizes supported by the printer. The supported paper type and sizes vary depending on destinations (between EAI, EUR, and Asia)
Table 1-7. Supported Paper
Paper Name Paper Size
Legal 215.9 x 355.6 mm (8.5”x14”)
Letter 215.9 x 279.4 mm (8.5”x11”) Y - Y - Y -
A4 210 x 297 mm (8.3”x11.7”) Y - Y - Y -
B5 182 x 257 mm (7.2”x10.1”) - - Y - Y -
Plain paper
Premium Inkjet Plain Paper A4 210 x 297 mm (8.3”x11.7”) 0.11 80 21 - - Y - Y -
Premium Bright White Paper (EAI)
Bright White Inkjet Paper (others) A4 210 x 297 mm (8.3”x11.7”) 0.13 92.5 25 - - Y - Y -
Ultra Premium Photo Paper Glossy (EAI)
Ultra Glossy Photo Paper (others)
Premium Photo Paper Glossy (EAI)
Premium Glossy Photo Paper (others)
Photo Paper Glossy (EAI)
Glossy Photo Paper (others)
A5 148 x 210 mm (5.8”x8.3”) - - Y - Y -
Half Letter 139.7 x 215.9 mm (5.5”x8.5”) Y - - - - -
A6 105 x 148 mm (4.1”x5.8”) Y - Y - Y -
User Defined
89 x 127- 329 x 1117.6 mm
(3.56”x 5.08” - 13.16”x44.7”)
Letter 215.9 x 279.4 mm (8.5”x11”) 0.11 90 24 Y - - - - -
Letter 215.9 x 279.4 mm (8.5”x11”)
A4 210 x 297 mm (8.3”x11.7”) - - Y Y Y
8” x 10” 203.2 x 254 mm Y Y - - - -
5” x 7” 127 x 178 mm Y Y Y Y - -
4” x 6” 101.6 x 152.4 mm Y Y Y Y Y
Letter 215.9 x 279.4 mm (8.5”x11”)
A4 210 x 297 mm (8.3”x11.7”) Y
8” x 10” 203.2 x 254 mm Y Y - - - -
5” x 7” 127 x 178 mm Y Y Y Y Y Y
”
x 6
”
4
101.6 x 152.4 mm Y Y Y Y Y Y
16:9 wide 102 x 181 mm (4”x7.11”) Y
Letter 215.9 x 279.4 mm (8.5”x11”)
A4 210 x 297 mm (8.3”x11.7”) Y Y Y Y Y Y
5” x 7” 127 x 178 mm - - Y Y - -
4” x 6” 101.6 x 152.4 mm Y Y Y Y Y Y
.
Thickness Weight EAI EUR Asia
*1
*1
*1
*1
mm g/m2lb. P
B
P
B
*1
P
Y-Y-Y-
0.08-0.11 64-90 17-24
Y - Y - Y -
Y Y - - - -
*2
0.30 290 77
*2
YY----
*3
*3
Y
Y Y Y Y
0.27 255 68
*4
*4
Y
Y Y
*4
- -
YY----
0.25 258 68
*1
B
*2
Y
*2
Y
Chapter 1 Product Description 1.2 Printing Specifications 13
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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
Table 1-7. Supported Paper
Paper Name Paper Size
A4 210 x 297 mm (8.3”x11.7”)
Photo Paper (others)
*4
5” x 7” 127 x 178 mm - - Y Y
4” x 6” 101.6 x 152.4 mm - - Y Y Y Y
Letter 215.9 x 279.4 mm (8.5”x11”)
Premium Photo Paper Semi-gloss (EAI)
Premium Semigloss Photo Paper (others)
A4 210 x 297 mm (8.3”x11.7”) - - Y Y Y Y
4” x 6” 101.6 x 152.4 mm Y Y Y Y Y Y
Ultra Premium Photo Paper Luster Letter 215.9 x 279.4 mm (8.5”x11”) 0.27 250 66 Y Y - - - -
Letter 215.9 x 279.4 mm (8.5”x11”)
Premium Presentation Paper Matte (EAI)
Matte Paper Heavy-weight (others)
A4 210 x 297 mm (8.3”x11.7”) - - Y Y Y Y
8” x 10” 203.2 x 254 mm Y Y - - - -
Premium Presentation Paper Matte Double-sided
(EAI)
Double-sided Matte Paper (others)
Presentation Paper Matte (EAI)
Photo Quality Inkjet Paper (others)
Letter 215.9 x 279.4 mm (8.5”x11”)
A4 210 x 297 mm (8.3”x11.7”) - - Y - Y -
Letter 215.9 x 279.4 mm (8.5”x11”)
A4 210 x 297 mm (8.3”x11.7”) Y - Y - Y -
#10 104.8 x 241.3 mm (4.125”x9.5”)
Envelopes
#DL 110 x 220 mm - - Y - Y -
#C6 114 x 162 mm - - Y - Y -
Iron-On Cool Peal Transfer (EAI)
Iron-On Cool Peal Transfer Paper (Other)
Photo Stickers 16
Letter 215.9 x 279.4 mm (8.5”x11”)
A4 210 x 297 mm (8.3”x11.7”) - - Y - Y -
A6 105 x 148 mm (4.1”x5.8”) 0.19 - - - - - Y -
Photo Stickers 4 A6 105 x 148 mm (4.1”x5.8”) 0.19 - - - - - Y
CD/DVD
CD/DVD Premium Surface
ø12cm ø12cm - - Y - Y - Y -
ø8cm ø8cm - -Y-Y-Y-
Thickness Weight EAI EUR Asia
*1
*1
*1
*1
mm g/m2lb. P
B
P
B
*1
P
- - YYYY
0.24 190 51
Y Y - - - -
0.27 250 66
Y Y - - - -
0.23 167
44
Y-----
0.22 185 49
0.12 102 27
Y-----
Y-Y-Y-
- 75-90 20-24
0.14 130 35
Y - - - - -
*3
B
*1
-
Note *1: “Y” in the “P” column stands for “the paper type/size is Supported”. “Y” in the “B” column stands for “Borderless printing is available”.
*2: Singapore, Taiwan, Australia only
*3: Epson Stylus Photo R280/R285/R290 only
*4: Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 only
Chapter 1 Product Description 1.2 Printing Specifications 14
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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
C A U T I O N
Print Area
LM RM
TM
BM
BM
Cut Sheet (Standard)
Cut Sheet (Borderless)
Paper Size
LM
RM
TM
BM
Print Area
LM RM
Print Area
Envelope
Paper Size
TM
Paper Feed Direction
Make sure the paper is not wrinkled, fluffed, torn, or folded.
The curve of paper must be 5 mm or below.
When printing on an envelope, be sure the flap is folded neatly.
Do not use the adhesive envelopes.
Do not use double envelopes and cellophane window envelopes.
1.2.5 Printing Area
The printing area for this printer is shown below.
Table 1-8. Printing Area (Margins)
Print Mode Paper Size
Left Right Top Bottom
Standard print Any size 3 mm 3 mm 3 mm 3 mm
Envelope 5 mm 5 mm 3 mm 20 mm
Borderless
print
A4/Letter to
5” x 7”
2.54 mm* 2.54 mm*
4” x 6” 1.34 mm* 2.54 mm*
Card 1.83mm* 1.83mm* 2.54mm* 3.53mm*
Note * : The margins for Borderless print are margins that bleed off the edges of paper.
Margin
2.96 mm* 4.02 mm*
Chapter 1 Product Description 1.2 Printing Specifications 15
Figure 1-2. Printing Area
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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
1.3 Interface
The printer has a USB interface of the following specification.
Standards
“Universal Serial Bus Specifications Revision 2.0”
“Universal Serial Bus Device Class Definition for Printing Devices Version 1.1”
Transfer rate: 480 Mbps (High Speed Device)
Data format: NRZI
Compatible connector: USB Series B
Recommended cable length: 2 [m] or less
Device ID
Table 1-9. Epson Stylus Photo R280/R285/R290
Product
Name
Epson Stylus
Photo R280
Epson Stylus
Photo R285
Epson Stylus
Photo R290
When IEEE 1284.4 is Enabled When IEEE 1284.4 is Disabled
MFG:EPSON;
CMD:ESCPL2,BDC,D4,D4PX;
MDL:Stylus[SP]Photo[SP]R280;
CLS:PRINTER;
DES:EPSON[SP]Stylus[SP]Photo
[SP]R280;
MFG:EPSON;
CMD:ESCPL2,BDC,D4,D4PX;
MDL:Stylus[SP]Photo[SP]R285;
CLS:PRINTER;
DES:EPSON[SP]Stylus[SP]Photo
[SP]R285;
MFG:EPSON;
CMD:ESCPL2,BDC,D4,D4PX;
MDL:Stylus[SP]Photo[SP]R290;
CLS:PRINTER;
DES:EPSON[SP]Stylus[SP]Photo
[SP]R290;
MFG:EPSON;
CMD:ESCPL2,BDC;
MDL:Stylus[SP]Photo[SP]R280;
CLS:PRINTER;
MFG:EPSON;
CMD:ESCPL2,BDC;
MDL:Stylus[SP]Photo[SP]R285;
CLS:PRINTER;
MFG:EPSON;
CMD:ESCPL2,BDC;
MDL:Stylus[SP]Photo[SP]R290;
CLS:PRINTER;
Table 1-10. Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50
Product
Name
Epson Artisan 50/
Epson Stylus
Photo T50/T59/
T60/P50
Note : The “Model Name” is replaced as shown in the following table.
North America Artisan 50
West Euro Epson Stylus Photo P50
Asia/Pacific/South America/CISMEA Epson Stylus Photo T50
Singapore/Korea Epson Stylus Photo T60
When IEEE 1284.4 is Enabled When IEEE 1284.4 is Disabled
@EJL<SP>ID<CR><LF>
MFG:EPSON;
CMD:ESCPL2,BDC,D4,D4PX;
MDL:Model Name;
CLS:PRINTER;
DES:EPSON<SP>Model Name;
CID:EpsonStd2;
Destination Model Name
@EJL<SP>ID<CR><LF>
MFG:EPSON;
CMD:ESCPL2,BDC;
MDL:Model Name;
CLS:PRINTER;
DES:EPSON<SP>Model Name;
CID:EpsonStd2;
Chapter 1 Product Description 1.3 Interface 16
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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
C A U T I O N
10/50
27/80
30/86 35/95 40/10420/68
Temperature (°C/°F)
20
30
40
50
90
80
70
60
Humidity (%)
1.4 General Specifications
1.4.1 Electrical Specifications
Primary power input
Table 1-11. Primary Power Specifications
Item 100-120V model 220-240V model
Rated power supply voltage 100 to 120 VAC 220 to 240 VAC
Input voltage range 90 to 132 VAC 198 to 264 VAC
Rated current 0.6 A (max. 1.0 A) 0.3 A (max. 0.5 A)
Rated frequency 50 to 60 Hz
Input frequency range 49.5 to 60.5 Hz
Insulation resistance 3000 V (for one minute)
Energy conservation
Epson Stylus
Photo R280/
Printing
Power
consumpt
ion
Note : If the printer is not operated for more than three minutes, the printer shifts into the
(ISO10561 Letter
Pattern)
Sleep mode Approx. 1.0 W Approx. 1.2 W
Standby mode
standby mode and reduces the current to the motor to conserve power.
R285/R290
Epson Artisan 50/
Epson Stylus
Photo T50/T59/
T60/P50
(power-off) Approx. 0.2 W Approx. 0.3 W
International Energy Star Program
compliant
Approx. 12 W
Approx. 13 W
1.4.2 Environmental Conditions
Table 1-12. Environmental Conditions
Condition Temperature
Operating
Storage*3
(unpacked)
Note *1: The combined Temperature and Humidity conditions must be within the blue-shaded
range in
*2: No condensation
*3: Non-operating with unpacked.
*4: Must be less than 1 month under 40°C.
10 to 35°C
(50 to 95°F)
-20 to 40°C*
(-4°F to 104°F)
Fig.1-3.
*1
4
Humidity
20
to 80%
to 85%
5
*1,2
Shock Vibration
1G
(1 msec or less)
2G
(2 msec or less)
10 to 55Hz
10 to 55Hz
0.15G,
0.50G,
Chapter 1 Product Description 1.4 General Specifications 17
Figure 1-3. Temperature/Humidity Range
When returning the repaired printer to the customer, make sure
the Printhead is covered with the cap and the ink cartridge is
installed.
If the Printhead is not covered with the cap when the printer is
off, turn on the printer with the ink cartridge installed, make
sure the Printhead is covered with the cap, and then turn the
printer off.
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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
1.4.3 Durability
Total print life: Black 16,000 pages (A4, 3.5% duty),
Color 10,000 pages (A4, 5% duty),
or five years which ever comes first
Printhead: Six billions shots (per nozzle) or five years which ever comes
first
1.4.4 Acoustic Noise
Epson Stylus Photo R280/R285/R290: 36 dB
Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50: 34.7 dB or less
(when printing from PC, on Premium Glossy Photo Paper, in highest quality)
1.4.5 Safety Approvals (Safety standards/EMI)
USA UL60950-1
FCC Part15 Subpart B Class B
Canada CAN/CSA-C22.2 No.60950-1
CAN/CSA-CEI/IEC CISPR 22 Class B
Mexico NOM-019-SCFI-1998
Taiwan CNS13438 Class B
CNS14336
EU EN60950-1
EN55022 Class B
EN61000-3-2, EN61000-3-3
EN55024
Germany EN60950-1
Russia GOST-R (IEC60950-1, CISPR 22)
Singapore IEC60950-1
Korea K60950-1
KN22 Class B
KN61000-4-2/-3/-4/-5/-6/-11
China GB4943
GB9254 Class B, GB17625.1
Argentina IEC60950-1
Australia AS/NZS CISPR22 Class B
Hong Kong IEC60950-1
*
*
NOTE * :
Epson Stylus Photo R280/R285/R290 only
Chapter 1 Product Description 1.4 General Specifications 18
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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
Power Button Paper ButtonInk Button
Power LED Paper LEDInk LED
Power Button Paper ButtonInk Button
Power LED
Paper LED
Ink LED
Epson Stylus Photo
R280/R285/R290
Epson Artisan 50/Epson Stylus
Photo T50/T59/T60/P50
1.5 Operation Buttons & Indicators (LEDs)
1.5.1 Operation Buttons
The printer has the following three operation buttons.
Table 1-13. Operation Buttons
Button Function
Power Turns the power ON/OFF.
Ink Runs a sequence of ink cartridge replacement or cleaning.
Paper Feeds or ejects paper.
1.5.2 Indicators (LEDs)
Three indicators (LEDs) are provided to indicate settings or printer status.
Table 1-14. Indicators (LEDs)
LED Function
Lights at power-on.
Power LED (green)
Ink LED (orange)*
Paper LED (orange)*
Note *1:The Ink LED and Paper LED stay OFF when printing from PC.
*2:See Table 1-17 “Indicators (LEDs) Function” for the LED status at error occurrence.
1
Flashes during some sequence is in progress.
Flashes at high speed during power-OFF sequence.
Lights or flashes when an ink-related error occurs.*
1
Lights or flashes when an paper- or CD-R-related error occurs.*
1.5.3 Operation Buttons & LEDs Functions
Detailed information on the buttons and LEDs functions are listed below.
Table 1-15. Operation Button Functions (During Normal Operation)
Button Function
Power • Turns the power ON/OFF
• Runs a sequence of ink cartridge replacement. The carriage
moves to set the ink cartridge to the position for
replacement.
• Moves the carriage to set the ink cartridge to the ink check
position when ink level low, ink out, or no ink cartridge
Ink
2
2
Paper
Ink
(when held for three seconds
or longer)
Power + Paper *
(combination)
Power + Ink *
(combination)
Note 1: First press the Paper button and then Power button. The printer will turn On and print
the nozzle check pattern.
2: First press the Power button and then Ink button. Hold them for seven seconds.
1
2
error has occurred.
• When an ink cartridge has been set in the ink check
position, moves the carriage to set the cartridge to the
position for replacement, or to set another cartridge to the
ink check position.
• When an ink cartridge has been set in the ink replacement
position, moves the carriage to the home position.
• Feeds or ejects paper.
• Recovers from a multi-feed error and feeds paper to restart
the print job.
• Feeds paper when paper is loaded after a no-paper error
occurs.
• Ejects a jammed paper when a paper jam error occurs.
• Cancels the print job during printing.
• Runs a head cleaning.
• Runs a sequence of ink cartridge replacement when ink
level low, ink out, or no ink cartridge error has occurred.
• Prints a nozzle check pattern*3.
• Forcefully turns the power OFF.
Chapter 1 Product Description 1.5 Operation Buttons & Indicators (LEDs) 19
Figure 1-4. Buttons & LEDs
3: The nozzle check pattern printed by the printer is shown in Figure 1-5.
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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
11
1
31
21
51
41
71
61
81
20
10
40
30
60
50
80
70
90
11
1
31
21
51
41
71
61
81
20
10
40
30
60
50
80
70
90
11
1
31
21
51
41
71
61
81
20
10
40
30
60
50
80
70
90
11
1
31
21
51
41
71
61
81
20
10
40
30
60
50
80
70
90
11
1
31
21
51
41
71
61
81
20
10
40
30
60
50
80
70
90
11
1
31
21
51
41
71
61
81
20
10
40
30
60
50
80
70
90
Note : The numbers shown in the figure are nozzle numbers. The numbers and color names
are not printed on an actual nozzle check pattern.
720 dpi MC1-1
32 dots
0.282 mm (1/90 inch)
Yellow Black Light Cyan Light Magenta CyanMagenta
Table 1-16. Operation Button Functions (During CD-R Printing)
Button CD-R Tray Function
Paper
Ink
(including when held
for three seconds or longer)
In
• Recovers form a CD-R tray error.
• Cancels the print job during printing.
Out • Recovers form a CD-R jam error.
In • Does not function.
Out
• Same as during normal operation.
Figure 1-5. Nozzle Check Pattern
Table 1-17. Indicators (LEDs) Function
Printer Status
Power OFF
Power Ink Paper
Flashes at
high speed
Fatal error OFF
Maintenance request OFF
CD-R guide error --
Indicators (LEDs)
OFF OFF 1
Flashes at
high speed
Flashes at
high speed
Flashes
alternately 2
Flashes at
high speed
alternately 1
Flashes 2 4
Flashes
Paper (CD-R) jam -- -- Flashes 5
Multi-feed error -- -- ON 6
No paper error -- -- ON 6
CD-R Tray error -- -- ON 6
Cover open error -- Flashes 2 Flashes 2 6
Ink cartridge replacement is in
progress
Flashes -- -- 7
Ink sequence is in progress Flashes -- -- 8
CSIC error -- ON -- 9
No ink cartridge error or ink-out error -- ON -- 9
During feeding or ejecting paper Flashes -- -- 10
Data processing Flashes -- -- 10
Ink level low -- Flashes -- 11
Power ON ON -- -- 12
Reset request*
2
ON ON ON -
Pri-
ority*
1
2
3
Chapter 1 Product Description 1.5 Operation Buttons & Indicators (LEDs) 20
Note : --: No change
Flash: Repeats turning On and Off every 1.25 seconds.
Flash 2: [Epson Stylus Photo R280/R285/R290]
Repeats On for 0.5 seconds, Off for 0.5 seconds,
On for 0.5 seconds, and Off for 1.0 second.
[Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50]
Flash at high speed: Repeats turning On and Off every 0.5 seconds.
Flashes alternately 1: same as the “Flash”
Flashes alternately 2: Repeats turning Off and On every 1.25 seconds.
Repeats On for 1.25 seconds, Off for 1.25 seconds,
On for 0.5 seconds, and Off for 1.0 second.
Note *1: When two or more errors occur at the same time, the one with higher priority will be
indicated.
*2: The all LEDs light for 0.2 seconds when a reset request is received.
Confidential
Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
1.5.4 Errors & Remedies
Table 1-18. Errors & Remedies
Error Error Remedies
Fatal error A mechanical error has occurred. Turn the power Off and back it On.
Maintenance
request
CD-R guide error
Paper jam
No paper
Multi-feed
CD-R Tray error
Ink-out The cartridge has run out of ink. Replace the ink cartridge.
No ink cartridge
Wrong ink
cartridge
Note : For more information on the remedies, see 3.2 Error Indications and Fault
Occurrence Causes.
Note *1: When the CD-R guide (stacker) is attached to the upper position (CD-R print
position), attach the guide to the lower position and press the Paper button.
*2: When the CD-R tray has been inserted, remove the CD-R tray and press the Ink
button.
Waste ink pads need to be
replaced.
• The CD-R guide (stacker)
position does not match with
Replace the waste ink pads and
reset the counter.
Attach the CD-R guide (stacker) to
the proper position.
the print job.
• The CD-R guide (stacker) is in
the CD-R printing position at
power-ON.
A paper jam has occurred. <When printing on paper>
Remove the jammed paper and
press the Paper button.*
1
<When printing on CD-R>
Remove the jammed CD-R tray
and press the Paper button.
Failed to feed paper. Load paper correctly and press the
1
1
Multiple sheets of paper were fed
at the same time.
Paper button.*
Press the Paper button to eject the
multiple sheets.*
A CD-R tray were not detected. Insert the CD-R tray and press the
Paper button.
*2
Ink cartridge(s) was not detected. Replace the ink cartridge.
*2
Chapter 1 Product Description 1.5 Operation Buttons & Indicators (LEDs) 21
Confidential
OPERATING PRINCIPLES
CHAPTER
2
Confidential
Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
PF Encoder Sensor APG Sensor
ASF Unit
CR Motor
PF Motor
LD Roller
CR Encoder
Sensor
PE Sensor
PF Roller Shaft
APG Unit
Ink System
CR Lock Lever
EJ Roller Shaft
PW Sensor
Cap ASSY
CR Shaft
CDR Guide
Sensor
Printhead
CR Unit
EJ Frame
CDR Tray
Sensor
2.1 Overview
This chapter describes the operating principles of the printer mechanism and electric
circuit boards of Stylus Photo R280/R285/R290 and Epson Artisan 50/Epson Stylus
Photo T50/T59/T60/P50.
2.1.1 Printer Mechanism
The main components of the printer mechanism are shown in the table below.
Table 2-1. Printer Mechanism Main Components
Component Function
CR Unit
APG Unit
PF Unit Rotates the PF roller shaft to feed paper being powered by the PF motor.
ASF Unit
EJ Unit
Ink System
The main control boards are shown in the table below.
Main Board
Power Supply Board
(P/S ASSY)
Panel Board Located inside the Panel Unit and controls the operation panel.
Chapter 2 Operating Principles 2.1 Overview 23
Moves along the CR shaft to print on paper being powered by the CR motor.
The unit includes Printhead, PW sensor, and CR encoder sensor.
Moves the carriage upward/downward to adjust the platen gap being powered by
the PF motor. There are 4 preset levels of platen gap and the unit moves the
carriage to one of the levels according to the current carriage position detected by
the APG sensor.
Being powered by the PF motor, feeds paper loaded on the ASF into the printer
mechanism.
Being powered by the PF motor, ejects paper or the CDR tray.
The EJ frame moves corresponding to the stacker position so that the frame
matches with the paper size.
Located on the right side of the printer mechanism. Covers the printhead with the
cap holder when the printhead is not used, and draws waste ink out of the
printhead. The waste ink is sent to the Waste Ink Tray through the waste ink tube.
Table 2-2. Main Control Boards
Board Function
Located on top of the printer mechanism and controls all over the
printer operations.
Located on the Lower Housing and generates required voltages for the
printer using the power supplied from the AC power line.
Cover Open
Cover Open
Sensor
Sensor
Figure 2-1. Printer Mechanism Diagram
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Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
APG Sensor
CR Motor
PF Motor
PF Encoder Sensor
CDR Tray Sensor
CR Encoder Sensor
PE Sensor
PW Sensor
Cover Open Sensor
CDR Guide Sensor
CR Contact Module
2.1.2 Motors & Sensors
No. Motor/Sensor Name Function
1 Printhead F3-MACH Turbo2 head (6 colors x 90 nozzles)
2 CR motor
3PF motor
4 PE sensor
5 CR Contact module Ink cartridge detection (CSIC)
6 CR Encoder sensor
7 PF Encoder sensor
8 PW sensor
9 APG sensor
10 CDR Guide sensor
11 CDR Tray sensor
12 Cover Open sensor
Table 2-3. List of Motors & Sensors
Type: DC motor
Drive voltage: 42V DC
Ω ± 10%
Ω ± 10%
Coil resistance: 22.7
Inductance: 17.5mH ± 25%
Drive method: PWM constant-current chopping
Type: DC motor
Drive voltage: 42V DC
Coil resistance: 21.2
Inductance: 17.2mH (1 kHz)
Drive method: PWM
Detecting items: paper end, leading edge of paper
Type: Transmissive photo interrupter
Type: Transmissive photo interrupter
Resolution: 180 pulse/inch
Type: Transmissive photo interrupter
Resolution: 180 pulse/inch
Detecting items:
• Left/right edges of paper (before/during printing)
• Top edge of paper (before printing)
• Bottom edge of paper (during printing)
• Left/right/top/bottom of CDR (before printing)
Type: Reflective photo interrupter
Detecting items: APG position
Type: Transmissive photo interrupter
Detecting items: Up/Down status of the CDR Guide
Type: Mechanical contact
Detecting items: Presence of CDR tray
Type: Mechanical contact
Detecting items: Open/Close status of the Printer Cover
Type: Mechanical contact
± 5% (voltage applied to the driver)
± 5% (voltage applied to the driver)
Figure 2-2. Motors & Sensors in the Printer Mechanism
Chapter 2 Operating Principles 2.1 Overview 24
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A D J U S T M E N T
R E Q U I R E D
2.2 Banding Reduction System (BRS) / Paper Feed Amount Profile Correction (PFP)
Overview
In order to ensure high print quality and high print speed, this product incorporates the Banding Reduction System (BRS) and Paper Feed Profile (PFP) Correction system. The
overview of them is described in the table below.
Table 2-4. Overview of BRS and PFP
Target Print Mode
4 x 6 inch
(102 x 152 mm)
4 x 6 inch
(102 x 152 mm)
Remarks
720 x 720 ---
720 x 720 With BRS, Borderless print
720 x 360
Without BRS,
Borderless print
BRS
PFP
Summary
Conventional models perform overlapping printing (2-path or 4path print) to reduce banding problem. Printers that incorporate the
Banding Reducing System do not perform the overlapping printing.
They carry out 1-path printing correcting ink drop amount for each
raster mode in order to avoid making a gap between each path
(printed line). This enables to achieve both high print quality (less
banding) and high print speed.
In the conventional method to improve paper feed accuracy, the
adjustment value is calculated based on a value obtained at a
certain point of paper. Therefore, correcting the total paper feed
amount (from when paper is fed and to when finishing printing)
was impossible. The Paper Feed Amount Profile Correction offers
more precise control over the paper feeding. Paper feed errors are
measured at various points and a correction value is calculated for
each of the points. This enables to ensure print quality in the target
print mode.
Paper Type Paper Size Resolutions (dpi)
Ultra Glossy Photo Paper
Premium Glossy Photo Paper
Glossy Photo Paper
Premium Semigloss Photo Paper
Ultra Glossy Photo Paper
Premium Glossy Photo Paper
Glossy Photo Paper
Premium Semigloss Photo Paper
Adjustment/Correction method
Correction values of the BRS and the PFP are automatically calculated when a pattern printed by the printer is scanned by a specified scanner. The created correction
values are stored into the serial flash ROM on the main board, and applied when printing in the target print mode.
For information on how to carry out the BRS and PFP,
See Chapter 5 Adjustment.
Chapter 2 Operating Principles 2.2 Banding Reduction System (BRS) / Paper Feed Amount Profile Correction (PFP) 25
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CR lock CR
CR lock
is released
2.3 Power-On Sequence
This section describes the power-on sequences.
Condition
Completing ink charge.
No CDR Tray and no paper on the paper path.
The stacker is not set on the CDR printing position.
The Printhead is capped with the Cap of the Ink System.
The Carriage is locked by the CR lock.
Table 2-5. Operation of the power-on sequence
Operation
1. Checking waste ink overflow
1-1.Reads out the protection counter value to check
waste ink overflow
2. Avoiding deadlock sequence
2-1.The carriage moves to the 0-digit side slowly and
confirms it touches the Right Frame.
2-2.The carriage slightly moves to the 80-digit side.
2-3.The PF Motor rotates clockwise and releases the
CR lock.
2-4.The carriage moves to the 0-digit side slowly and
confirms it touches the Right Frame.
2-5.The carriage returns to its home position.
3. CDR Tray sensor
3-1.Checks with the CDR Tray sensor if the CDR
Tray is not set.
3-2.The PF Motor rotates clockwise to eject the CDR
Tray.
*1
movement and position
*4
Carriage/PF roller
*2
*3
PG
Any
position
↓
↓
↓
↓
↓
↓
↓
Table 2-5. Operation of the power-on sequence
Operation
4. Releasing the CR lock
4-1.The PF Motor rotates clockwise and releases the
CR lock.
5. Seeking the home position
5-1.The carriage slowly moves to the 80-digit side.
5-2.The carriage moves to the 0-digit side slowly and
confirms it touches the Right Frame.
5-3.The carriage slowly moves to the CR lock set
position.
5-4.The PF motor rotates clockwise and releases the
CR lock.
5-5.The PF motor rotates counterclockwise and sets
the CR lock.
5-6.The carriage moves to the 80-digit side slowly and
confirms it touches the CR lock.
5-7.The carriage slowly moves to the 0-digit side to
the CR lock set position.
5-8.The PF motor rotates clockwise and releases the
CR lock.
5-9.The carriage moves to the 80-digit side slowly and
confirms it does not touch the CR lock.
5-10.The carriage slowly moves to its original
position, and home position is fixed.
Afterward, the carriage position is monitored
according to the signals from the CR Encoder.
6. Resetting APG
6-1.The carriage slowly moves to the Right Frame and
stops there.
*1
Carriage/PF roller
movement and position
(Continue to the next page)
*2
*3
PG
Any
position
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
Chapter 2 Operating Principles 2.3 Power-On Sequence 26
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Table 2-5. Operation of the power-on sequence
Operation
6-2.The PF Motor rotates clockwise while monitoring
the PG sensor.
6-3.After the PG sensor switched from Off to On, the
PF Motor rotates clockwise by the specified step
until it detects the PG-- (APG home position).
6-4. After detecting the APG home position, the carriage
slightly moves to
the 80-digit side.
6-5. After the PF Motor rotates counterclockwise
specified step
, it rotates clockwise to confirm the PG
sensor is set to On-state.
6-6.The carriage slowly returns to its home position.
7. Setting the APG to PG++
7-1.The carriage slowly moves to the Right Frame and
stops there.
7-2.The PF Motor rotates clockwise and sets to PG++.
7-3.The carriage slowly returns to its home position.
8. PF initialization
8-1.Checks if paper exists by the PE sensor*5 and the
PF Motor rotates clockwise for one second.
9. PF Motor measurement
9-1.The PF motor rotates clockwise for four seconds,
and performs a load measurement.
10.Low temperature operation sequence
10-1.The PF Motor rotates clockwise, and releases the
CR lock.
10-2.The carriage moves back and forth between CR
lock and the 80-digit side for two times.
*1
by the
*6
*7
Carriage/PF roller
movement and position
*2
*3
PG
Any
position
↓
↓
PG--
↓
↓
PG++
↓
↓
↓
↓
↓
Table 2-5. Operation of the power-on sequence
Operation
11.Setting the APG to PG--
11-1.The carriage slowly moves to the Right Frame
and stops there.
11-2.The PF Motor rotates clockwise and sets to PG--.
11-3.The carriage slowly returns to its home position.
12.CR measurement and PW sensor initialization
12-1.The PF Motor rotates clockwise, and releases the
CR lock.
12-2.The carriage slowly moves to the 80-digit side.
12-3.The carriage performs a load measurement while
moving to the VHCheck position, and records the
detected voltage of the PW sensor at the specified
three positions, then stops.
12-4.The carriage detects the voltage of the PW sensor
at the carriage stop position (the black area at the
Paper Guide Front).
12-5.The carriage performs a load measurement while
moving to the 0-digit side, and stops.
12-6.The carriage performs a load measurement while
moving to the VHCheck position, and records the
detected voltage of the PW sensor at the specified
three positions, then stops.
12-7.The carriage detects the voltage of the PW sensor
at the carriage stop position (the black area at the
Paper Guide Front).
12-8.The carriage performs a load measurement while
moving to the 0-digit side, and stops.
*1
Carriage/PF roller
movement and position
(Continue to the next page)
*3
PG
*2
↓
PG--
↓
↓
↓
↓
↓
↓
↓
↓
↓
Chapter 2 Operating Principles 2.3 Power-On Sequence 27
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Table 2-5. Operation of the power-on sequence
Operation
13.Detecting ink cartridge and initializing ink system
13-1.The PF motor rotates clockwise and releases the
CR lock.
13-2.The PF Motor rotates clockwise for one second,
and resets the PF Roller.
13-3.The carriage slowly moves to the 0-digit side.
13-4.After the carriage moves to the 80-digit side and
checks the ink end sensor, detects the ink
remaining.
13-5.The carriage slowly returns to its home position.
14.CR lock setting
14-1.The carriage slowly moves to the CR lock set
position.
14-2.The PF Motor rotates counterclockwise, and sets
the CR lock.
14-3.The carriage slowly returns to its home position.
Note *1: The rotation direction of the PF Motor is as follows.
Clockwise: Paper is fed normally
Counterclockwise: Paper is fed backward
*2: The condition of the CR lock is as follows.
Red: CR lock is set
White: CR lock is released
*3: Indicates the PG position. “Any position” means that the PG position is not
recognized because APG is not reset yet.
*4: Checks if the carriage is not deadlock such as the CR lock is caught in the gap of the carriage.
*5: Eject the paper if any.
*6: When paper exists, the existing measurement value saved in EEPROM is read out;
therefore, the PF Motor does not rotate.
*7: Executes when the detected temperature is under 5 oC (41oF) by the thermistor on the Printhead.
*8: The empty sanction operation may occur depending on the situation.
*9: If paper remains in the printer, the PF Roller rotates by steps enough to eject the paper forcibly.
*1
*9
Carriage/PF roller
movement and position
*8
2.4 Printer Initialization
*3
PG
*2
↓
↓
PG--
↓
↓
↓
↓
↓
There are four kinds of initialization method, and the following explains each
initialization
1. Hardware initialization
This printer is initialized when turning the printer power on, or printer recognized
the cold-reset command (remote RS command).
When printer is initialized, the following actions are performed.
(a) Initializes printer mechanism
(b) Clears input data buffer
(c) Clears print buffer
(d) Sets default values
2. Operator initialization
Initialization when resetting the USB software, and the following are performed.
(a) Clears input data buffer
(b) Clears print buffer
(c) Sets default values
3. Software initialization
The ESC@ command also initialize the printer.
When printer is initialized, the following actions are performed.
(a) Clears print buffer
(b) Sets default values
4. IEEE 1284.4 “rs” command initialization
The printer recognized the IEEE 1284.4 “rs” command.
When printer is initialized, the following action is performed.
Initialization when an error occurs.
(a) Initializes printer mechanism
(b) Clears input data buffer
(c) Clears print buffer
(d) Sets default values
Initialization in normal operation
(a) Clears input data buffer
(b) Clears print buffer
(c) Sets default values
Chapter 2 Operating Principles 2.4 Printer Initialization 28
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TROUBLESHOOTING
CHAPTER
3
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Start
Identifying the error cause by the error
message or observed symptom.
Repair or replacement of
parts or components
Reassembly and adjustment
End
3.1 Overview
This chapter provides how to troubleshoot problems analyzing the cause based on the
messages shown by the printer driver, printer’s LED status and the observed symptom.
Identify and troubleshoot the problem referring to the tables on the following pages.
When some parts need to be replaced, make sure to follow the procedure given in
Chapter 4 and carry out required adjustments. If any abnormality is observed in motors
or sensors, check the electrical value referring to the 3.1.1 “Troubleshooting on Motors
and Sensors”(p.30).
3.1.1 Troubleshooting on Motors and Sensors
The following tables show the normal electric values of each motor and sensor. When
any abnormality is observed in motors and sensors, check their electric values and
compare them with the values given in the tables to see if the motors or sensors are
broken or not.
Table 3-1. Motor Resistance & Measuring Points
Motor Motor Connector Measuring Points Resistance
CR Motor
PF Motor
Sensor Sensor Connector Signal Level Status
PE Sensor
APG Sensor
CDR Guide Sensor
CN14 Between Pin 1 and 2 22.7Ω ± 10%
CN13 Between Pin 1 and 2 21.2Ω ± 10%
Table 3-2. Sensor Checkpoints
CN6
Between Pin 1 and 2
CN7
Between Pin 1 and 2
CN4
Between Pin 1 and 2
2.4V or more No paper
0.4V or less Paper exists
2.4V or more Within PG position
0.4V or less Out of PG position
CDR mode
Open: 2.4V or more
Close: 0.4V or less
(Stacker is at the upper
position)
ASF mode
(Stacker is at the lower
position)
Figure 3-1. Troubleshooting Flowchart
CD-R Tray Sensor
Cover OPEN Sensor
Note : See 2.1.2 “ Motors & Sensors ”(p.24) for locations of the motors and sensors.
CN4
Between Pin 3 and 4
CN17
Between Pin 1 and 2
Open: 2.4V or more CD-R Tray inserted
Close: 0.4V or less No CD-R Tray
Open: 2.4V or more Printer Cover opened
Close: 0.4V or less Printer Cover closed
Chapter 3 Troubleshooting 3.1 Overview 30
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