Epson Stylus Photo R280/R285/R290 Printers OEM Service & Repair Manual

Epson Stylus Photo R280/R285/R290 Epson Artisan 50/ Epson Stylus Photo T50/T59/T60/P50 Color Inkjet Printer SEIJ07-004 SERVICE MANUAL Confidential

Confidential 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 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 Epson- approved 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. 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

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.

EPSON Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C 6 Confidential 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) 25 2.3 Power-On Sequence ........................................................................................... 26 2.4 Printer Initialization ............................................................................................ 28 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

EPSON Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C 7 Confidential 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 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 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

Confidential CHAPTER 1 PRODUCT DESCRIPTION

Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C Chapter 1 Product Description 1.1 Features 9 Confidential 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 Note *1: Paper support and stacker are closed. Rubber feet are included. *2: Without ink cartridges Figure 1-1. External View Table 1-1. Dimensions and weight Model Dimensions (W x D x H) mm *1 Weight *2 Epson Stylus Photo R280/ R285/R290 450 x 282 x 187 5.4 kg Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 450 x 289 x 187 5.5 kg 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

Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C Chapter 1 Product Description 1.2 Printing Specifications 10 Confidential 1.2 Printing Specifications 1.2.1 Basic Specifications 1.2.2 Ink Cartridge The product numbers of the EPSON ink cartridges for this printer are shown below.  Shelf life Two years from production date (if unopened), six months after opening package.  Storage Temperature  Dimension 12.7 mm (W) x 68 mm (D) x 47 mm (H) 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 Bi-directional minimum distance printing, unidirectional printing Print resolution Horizontal x Vertical (dpi) • 360 x 180 • 720 x 540 • 360 x 360 • 720 x 720 • 720 x 360 • 5760 x 1440 Control code • ESC/P Raster command • EPSON Remote command Internal font Character code:Alphanumeric with expanded graphics (PC437) ASCII, 20H to 7FH only Font: EPSON original font Alphanumeric font: Courier 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 Table 1-3. Product No. of Ink Cartridges Color EAI Euro Asia, CISMEA, Latin Black T0771 (S) T0781 (SS) T0801 T0811 (S) T0821 (SS) Cyan T0772 (S) T0782 (SS) T0802 T0812 (S) T0822 (SS) Magenta T0773 (S) T0783 (SS) T0803 T0813 (S) T0823 (SS) Yellow T0774 (S) T0784 (SS) T0804 T0814 (S) T0824 (SS) Light Cyan T0775 (S) T0785 (SS) T0805 T0815 (S) T0825 (SS) Light Magenta T0776 (S) T0786 (SS) T0806 T0816 (S) T0826 (SS) Table 1-4. Storage Temperature Situation Storage Temperature Limit When stored in individual boxes -20 o C to 40 o C (-4 o F to 104 o F) 1 month max. at 40 o C (104 o F) When installed in main unit -20 o C to 40 o C (-4 o F to 104 o F) C A U T I O N  The ink cartridge cannot be refilled.  Do not use expired ink cartridges.  The ink in the ink cartridge freezes at -16 °C (3.2 o F). It takes about three hours under 25 °C (77 o F) until the ink thaws and becomes usable.

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Epson Stylus Photo R280/R285/R290 Printers OEM Service & Repair Manual

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