Epson Stylus CX9300F CX9400Fax DX9400F Service Manual & Repair Guide

EPSON Stylus CX9300F/CX9400Fax/ DX9400F Color Inkjet Printer SEMF07-003 SERVICE MANUAL

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 © 2007 SEIKO EPSON CORPORATION. Imaging Products CS, PL & Environmental Management

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.

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 • 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. 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

Revision Status Revision Date of Issue Description A August 29, 2007 First Release

EPSON Stylus CX9300F/CX9400Fax/DX9400F Revision A 6 Contents Chapter 1 PRODUCT DESCRIPTION 1.1 Features................................................................................................................ 10 1.2 Printing Specifications......................................................................................... 11 1.2.1 Basic Specifications .................................................................................... 11 1.2.2 Ink Cartridge ............................................................................................... 11 1.2.3 Print Mode .................................................................................................. 12 1.2.4 Supported Paper .......................................................................................... 14 1.2.5 Printing Area............................................................................................... 16 1.3 Scanner Specifications......................................................................................... 16 1.3.1 Scanning Range .......................................................................................... 17 1.4 General Specifications ......................................................................................... 17 1.4.1 Electrical Specifications ............................................................................. 17 1.4.2 Environmental Conditions .......................................................................... 18 1.4.3 Durability .................................................................................................... 18 1.4.4 Acoustic Noise ............................................................................................ 18 1.4.5 Safety Approvals (Safety standards/EMI) .................................................. 18 1.5 Interface ............................................................................................................... 19 1.5.1 USB Interface ............................................................................................. 19 1.5.2 FAX Interface ............................................................................................. 19 1.5.3 Memory Card Slots ..................................................................................... 20 1.6 Control Panel ....................................................................................................... 21 1.6.1 Operation Buttons & LEDs ........................................................................ 21 1.6.2 Control Panel Functions in Each Mode ...................................................... 23 1.7 Specification for Each Function .......................................................................... 25 1.7.1 Stand-alone Copy Function ........................................................................ 25 1.7.2 Memory Card Direct Print Function ........................................................... 27 1.7.3 Camera Direct Print Function(USB Direct Print/PictBridge) .................... 31 1.7.4 Reprint/Restore Photos Function ................................................................ 33 1.7.5 Setup Mode ................................................................................................. 34 1.7.6 FAX Function ............................................................................................. 36 Chapter 2 OPERATING PRINCIPLES 2.1 Overview ............................................................................................................. 40 2.1.1 Printer Mechanism...................................................................................... 40 2.1.2 Motors & Sensors ....................................................................................... 41 2.2 Printer Mechanism Operating Principle .............................................................. 42 2.2.1 Printhead ..................................................................................................... 42 2.2.2 Carriage Mechanism................................................................................... 44 2.2.3 Paper Loading/Paper Feed Mechanism ...................................................... 45 2.2.4 Ink System Mechanism .............................................................................. 50 2.2.5 Ink Sequence............................................................................................... 53 2.3 Scanner Mechanism ............................................................................................ 54 2.3.1 Scanner Carriage Mechanism ..................................................................... 54 2.4 ADF Mechanism Operating Principle ................................................................. 56 2.4.1 ADF Mechanism......................................................................................... 56 2.4.2 ADF Document Feed Mechanism .............................................................. 57 2.5 Electrical Circuit Operating Principles................................................................ 59 2.5.1 Power Supply Board ................................................................................... 59 2.5.2 C696 Main Board ....................................................................................... 60 2.6 FAX Function Operating Principle ..................................................................... 66 2.6.1 Line Connection Function .......................................................................... 66 2.6.2 FAX Image Storing Function ..................................................................... 66 2.6.3 Communication Function ........................................................................... 67 2.6.4 Print Function ............................................................................................. 67 2.6.5 Save Setting Function ................................................................................. 67 2.6.6 Data Recording Function ............................................................................ 67 2.6.7 External Telephone Function...................................................................... 67

EPSON Stylus CX9300F/CX9400Fax/DX9400F Revision A 7 Chapter 3 TROUBLESHOOTING 3.1 Overview ............................................................................................................. 69 3.1.1 Specified Tools ........................................................................................... 69 3.1.2 Preliminary Checks ..................................................................................... 69 3.2 Troubleshooting................................................................................................... 70 3.2.1 Motor and Sensor Troubleshooting ............................................................ 70 3.3 Error Indications and Fault Occurrence Causes .................................................. 71 3.3.1 Error Message List ...................................................................................... 71 3.3.2 Troubleshooting by Error Message ............................................................ 73 3.3.3 Superficial Phenomenon-Based Troubleshooting ...................................... 91 3.4 FAX Troubleshooting.......................................................................................... 98 3.4.1 FAX Log ..................................................................................................... 98 3.4.2 Error Code/Superficial Phenomenon-Based Troubleshooting ................. 102 3.5 Fax Function/External Connection (EXT port) Function Check ...................... 104 3.5.1 Outline ...................................................................................................... 104 3.5.2 Fax Function and External Connection Function Check .......................... 104 Chapter 4 DISASSEMBLY/ASSEMBLY 4.1 Overview ........................................................................................................... 111 4.1.1 Precautions ................................................................................................ 111 4.1.2 Tools ......................................................................................................... 111 4.1.3 Work Completion Check .......................................................................... 112 4.2 Disassembly Procedures .................................................................................... 113 4.3 Removing the Housing ...................................................................................... 115 4.3.1 Paper Support Assy................................................................................... 115 4.3.2 Stacker Assy ............................................................................................. 115 4.3.3 Scanner Unit/ADF Unit ............................................................................ 116 4.3.4 Upper Housing .......................................................................................... 119 4.3.5 Front Housing ........................................................................................... 120 4.4 Removing the Circuit Boards ............................................................................ 121 4.4.1 Main Board Unit ....................................................................................... 121 4.4.2 Panel Unit ................................................................................................. 124 4.4.3 Power Supply Unit .................................................................................... 126 4.5 Disassembling the Printer Mechanism .............................................................. 127 4.5.1 Printhead ................................................................................................... 127 4.5.2 CR Scale ................................................................................................... 130 4.5.3 Hopper ...................................................................................................... 131 4.5.4 Removing the Printer Mechanism (Lower Housing)/Card Slot Cover .... 132 4.5.5 Left Frame ................................................................................................ 134 4.5.6 Front Frame/Right Frame ......................................................................... 135 4.5.7 Star Wheel Holder Assy ........................................................................... 137 4.5.8 EJ Roller ................................................................................................... 137 4.5.9 PF Encoder Sensor.................................................................................... 138 4.5.10 PF Scale .................................................................................................. 139 4.5.11 PF Motor ................................................................................................. 140 4.5.12 CR Motor ................................................................................................ 141 4.5.13 Main Frame Assy.................................................................................... 143 4.5.14 CR Unit ................................................................................................... 145 4.5.15 Upper Paper Guide ................................................................................. 147 4.5.16 ASF Unit ................................................................................................. 147 4.5.17 Ink System Unit ...................................................................................... 149 4.5.18 Front Paper Guide................................................................................... 151 4.5.19 PF Roller ................................................................................................. 153 4.5.20 Waste Ink Pads ....................................................................................... 154 4.6 Disassembling the Scanner Unit........................................................................ 155 4.6.1 Separating the Scanner Unit and the ADF Unit ....................................... 155 4.6.2 Upper Scanner Housing ............................................................................ 156 4.6.3 Scanner Carriage Unit .............................................................................. 157 4.6.4 Scanner Motor Unit .................................................................................. 159 4.7 Disassembling the ADF Unit ............................................................................ 160 4.7.1 ADF Hinge ............................................................................................... 160 4.7.2 ADF Cover Assy ...................................................................................... 161 4.7.3 ADF Paper Support Assy ......................................................................... 161 4.7.4 ADF Motor Unit ....................................................................................... 162 4.7.5 ADF Frame Assy ...................................................................................... 164 4.7.6 ADF Front Cover ...................................................................................... 165 4.7.7 ADF Driven Roller ................................................................................... 165 4.7.8 ADF PF Roller .......................................................................................... 166

EPSON Stylus CX9300F/CX9400Fax/DX9400F Revision A 8 Chapter 5 ADJUSTMENT 5.1 Adjustment Items and Overview ....................................................................... 168 5.1.1 Servicing Adjustment Item List ................................................................ 168 5.1.2 Required Adjustments .............................................................................. 170 5.2 Using the Adjustment Program ......................................................................... 172 5.2.1 TOP Margin Adjustment .......................................................................... 172 5.2.2 First Dot Position Adjustment .................................................................. 172 5.2.3 Head Angular Adjustment ........................................................................ 173 5.2.4 Bi-D Adjustment ....................................................................................... 174 5.2.5 PF Adjustment .......................................................................................... 174 5.2.6 PF Band Adjustment ................................................................................. 175 5.2.7 Bottom Margin Adjustment ...................................................................... 176 Chapter 6 MAINTENANCE 6.1 Overview ........................................................................................................... 178 6.1.1 Cleaning .................................................................................................... 178 6.1.2 Service Maintenance ................................................................................. 178 6.1.3 Lubrication................................................................................................ 179 Chapter 7 APPENDIX 7.1 Exploded Diagram / Parts List .......................................................................... 185 7.2 Electrical Circuits .............................................................................................. 185

CHAPTER 1 PRODUCT DESCRIPTION

EPSON Stylus CX9300F/CX9400Fax/DX9400F Revision A PRODUCT DESCRIPTION Features 10 1.1 Features EPSON Stylus CX9300F/CX9400Fax/DX9400F are color ink-jet printers with scanner and FAX functions, and have the following features.  Available Functions  Printer Printing from a computer or directly printing from a memory card  Scanner Scanning from a computer  Copy Stand alone copy using the scanning and printing functions  Memory card slot Available as memory card reader for PC  FAX Sending/receiving fax  Color LCD 2.5-inch color TFT LCD  ADF Continuous scanning using an ADF  High speed & High quality  Maximum print resolution: SMGA 5760 (H) x 1440 (V) dpi  D4-chips Turbo II print head achieves higher print speed than ever. (Black: 90 nozzles x 1, Color: 90 nozzles x 1 per color)  Four independent ink cartridges is installed.  Newly developed pigment ink is employed.  Borderless printing on specified EPSON brand paper is available.  Dimensions  Dimensions: 460 mm (W) x 410 mm (D) x 236 mm (H) (Paper support and stacker are closed. Rubber feet are included)  Weight: 7.6 kg (Ink cartridge and power cable are excluded) Figure 1-1. External View

Epson Stylus CX9300F CX9400Fax DX9400F Service Manual & Repair Guide

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