打印机维修手册：WF-7620_WF-7610_WF-7110_Series

CONFIDENTIALColor Inkjet PrinterEpson WF-7620 Series Epson WF-7610 Series Epson WF-7110 SeriesNotice: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.All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.The contents of this manual are subject to change without notice.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.Note: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 © 2014 SEIKO EPSON CORPORATIONPrinter CS Quality Assurance DepartmentSafety PrecautionsAll safety procedures described here shall be strictly adhered to by all parties servicing and maintaining this product.DANGERStrictly observe the following cautions. Failure to comply could result in serious bodily injury or loss of life. 1.Always disconnect the product from the power source and peripheral devices when servicing the product orperforming maintenance.2.When performing works described in this manual, do not connect to a power source until instructed to do so.Connecting to a power source causes high voltage in the power supply unit and some electronic components even if the product power switch is off. If you need to perform the work with the power cable connected to a power source, use extreme caution to avoid electrical shock.WARNINGStrictly observe the following cautions. Failure to comply may lead to personal injury or loss of life.1.Always wear protective goggles for disassembly and reassembly to protect your eyes from ink in working. Ifany ink gets in your eyes, wash your eyes with clean water and consult a doctor immediately.2.When using compressed air products; such as air duster, for cleaning during repair and maintenance, the useof such products containing flammable gas is prohibited.PRECAUTIONSStrictly observe the following cautions. Failure to comply may lead to personal injury or damage of the product.1.Repairs on Epson product should be performed only by an Epson certified repair technician.2.No work should be performed on this product by persons unfamiliar with basic safety knowledge required forelectrician.3.The power rating of this product is indicated on the serial number/rating plate. Never connect this product tothe power source whose voltages is different from the rated voltage.4.Replace malfunctioning components only with those components provided or approved by Epson;introduction of second-source ICs or other non-approved components may damage the product and void any applicable Epson warranty.5.The capacitors on the Main Board may be electrically charged right after the power turns off or after drivingmotors which generates counter electromotive force such as when rotating the PF Roller or when moving the CR Unit. There is a risk to damage the Main Board if the Head FFC is short-circuited with the capacitors on the Main Board electrically charged, therefore, after the power turns off or after motors are driven, leave the printer untouched for approximately 30 seconds to discharge the capacitors before starting disassembly/ reassembly.6.To prevent the circuit boards from short-circuiting, be careful about the following when handling FFC orcables.When handling FFC, take care not to let the terminal section of FFC touch metal parts.When connecting cables/FFC to the connectors on circuit boards, connect them straight to the connectors to avoid slant insertion.7.In order to protect sensitive microprocessors and circuitry, use static discharge equipment, such as anti-staticwrist straps, when accessing internal components.8.Do not tilt this product immediately after initial ink charge, especially after performing the ink charge severaltimes. Doing so may cause ink to leak from the product because it may take some time for the waste ink pads to completely absorb ink wasted due to the ink charge.9.Never touch the ink or wasted ink with bare hands. If ink comes into contact with your skin, wash it off withsoap and water immediately. If you have a skin irritation, consult a doctor immediately.10.When disassembling or assembling this product, make sure to wear gloves to avoid injuries from metal partswith sharp edges.e only recommended tools for disassembling, assembling or adjusting the printer.12.Observe the specified torque when tightening screws.13.Be extremely careful not to scratch or contaminate the following parts.Nozzle plate of the printheadCR ScalePF ScaleCoated surface of the PF RollerGearsRollersLCDScanner SensorExterior parts14.Never use oil or grease other than those specified in this manual. Use of different types of oil or grease maydamage the component or give bad influence on the printer function.15.Apply the specified amount of grease described in this manual.16.Make the specified adjustments when you disassemble the printer.17.When cleaning this product, follow the procedure described in this manual.18.When transporting this product after filling the ink in the printhead, pack the printer without removing theink cartridges in order to prevent the printhead from drying out.19.Make sure to install antivirus software in the computers used for the service support activities.20.Keep the virus pattern file of antivirus software up-to-date.21.When disassembling/reassembling this product, if you find adhesive power of the double-sided tape whichsecure the parts or FFC is not enough, replace the tape with new one and attach it correctly to the specified points where the parts or FFC should be secured.22.Unless otherwise specified in this manual, the labels attached on the returned product should be transferred tothe corresponding attachment positions on the new one referring to the labels on the returned product.About This ManualThis manual, consists of the following chapters, is intended for repair service personnel and includes information necessary for properly performing maintenance and servicing the product.CHAPTER 1. TROUBLESHOOTINGDescribes the step-by-step procedures for the troubleshooting.CHAPTER 2. DISASSEMBLY / REASSEMBLYDescribes the disassembly/reassembly procedures for main parts/units of the product, and provides the standard operation time for servicing the product.CHAPTER 3. ADJUSTMENTDescribes the required adjustments for servicing the product.CHAPTER 4. MAINTENANCEDescribes maintenance items and procedures for servicing the product.CHAPTER 5. APPENDIXProvides the following additional information for reference:•Connector Diagram•Protection for TransportationSymbols Used in this ManualVarious 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. Pay attention to all symbols when they are used, and always read explanation thoroughly and follow the instructions.Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed,could result in serious injury or loss of life.Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed,could result in bodily injury, damage or malfunction of equipment.May indicate an operating or maintenance procedure, practice or condition that is necessary toaccomplish a task efficiently. It may also provide additional information that is related to a specificsubject, or comment on the results achieved through a previous action.For Chapter 2 “Disassembly/Reassembly”, symbols other than indicated above are used to show additional information for disassembly/reassembly. For the details on those symbols, see "2.2 Disassembly/Reassembly Procedures (p28)".Revision StatusA July 26, 2013First ReleaseB April 21, 2014Revise the contentsChapter 1Made change the description in "1.3 Fatal Error Code List (p15)""1.4 Status sheet (p20)" has been added.Chapter 3Made change the description in "3.2.2.2 Preparation (p65)"ContentsChapter 1 Troubleshooting1.1Troubleshooting (10)1.1.1Troubleshooting Workflow (10)1.2Power-On Sequence (13)1.3Fatal Error Code List (15)1.4Status sheet (20)1.4.1Start method of Inspection Mode (20)1.4.2Description of Status sheet (Non-disclosed information to user) (21)Chapter 2 Disassembly/Reassembly2.1Overview (24)2.1.1Tools (24)2.1.2Jigs (24)2.1.3Standard Operation Time for servicing the product (25)2.2Disassembly/Reassembly Procedures (28)2.2.1Functional differences between models and component parts (28)2.2.2Functional differences between models and component parts (30)2.2.3Disassembly Flowchart (31)2.2.3.1Housing Part (WF-7620/WF-7610 Series) (32)2.2.3.2Housing Part (WF-7110 Series) (33)2.2.3.3Printer Mechanism Part (34)2.3Detailed Disassembly/Reassembly Procedure for each Part/Unit (38)2.4Routing FFCs/cables (47)Chapter 3 Adjustment3.1Required Adjustments (53)3.2Details of Adjustments (61)3.2.1PF/CR Timing Belt Tension Measurement (61)3.2.1.1PF Timing Belt Tension Measurement (62)3.2.1.2CR Timing Belt Tension Check (63)3.2.2PG Adjustment (64)3.2.2.1PG Adjustment procedure (64)3.2.2.2Preparation (65)3.2.2.3PG adjustment procedure (68)3.2.2.4Checking the Platen Gap (70)3.2.3Touch Panel Adjustment (WF-7620/7610 Series only) (71)Chapter 4 Maintenance4.1Cleaning (76)4.1.1Cleaning the CR Unit (76)4.1.2Cleaning the Exterior Parts/inside of the printer (77)4.2Lubrication (78)4.3Lubrication Points and Instructions (79)4.4Firmware Update (82)Chapter 5 Appendix5.1Connector Diagram (85)75.2Protection for Transportation 865.2.1Securing the CR Unit 86CHAPTER1101.1 TroubleshootingThis section describes the troubleshooting workflow.1.1.1 Troubleshooting WorkflowThe following page describes the troubleshooting workflow. Follow the flow when troubleshooting problems.Figure 1-1.Troubleshooting Workflow (1) This flowchart is compiled based on the following contents.•Our experience regarding the quality problem•ESK’s repair data•Printer Mechanism specification for WF-7620/WF-7610/WF-7110 SeriesWF-7110 Series does not have the Scanner/ADF unit, so the troubleshooting for theScanner/ADF unit is not applicable to this series.If the reason for the return is evident, first check the phenomenon user claims recurs,then proceed to the troubleshooting.5What is returned reason?2Standby condition 3Is printing operationfinished without error?Turn on the printer 14(p 11)(p 11)(p 11)(p 12)(p 12)Copy an image*:In case of “Not Trouble Found”, check fatal error code.6(p 12)ADF/Scannerunit failurePrinter failure only Yes No YesNo Yes Yes No Yes Yes NoNo No No Yes Does printer turn on thepower?Is Power-on sequencefinished without error?Print check pattern Is printing operationfinished without trouble?Is scanning operationfinished withouttrouble?Is ADF operation finished without trouble?Copy an image by ADFADF failure?Please refer to " 1.3 Fatal Error Code List (p15)"for troubleshooting.[Occurrence Condition]This error occurs when maintenance counter inEEPROM exceeds the specified value.[Major Occurrence Timing]•Power-on timing •Print start timing •Paper eject timing •Cleaning timing•Ink cartridge replacement timing [Major Troubleshooting]•Replace Maintenance Box •Paper Guide Lower Porous Pad replacement•Maintenance counter reset (only Paper Guide Lower Porous Pad)[Occurrence Condition]This error occurs whenMaintenance Box is not installed.[Major Occurrence Timing]•At power-on•Maintenance Box monitoring timing [Major Troubleshooting]Turn the printer off once and install Maintenance Box again, and turn the power on.[Occurrence Condition]This error occurs whenMaintenance Box data is incorrect or it is not recognized correctly.[Major Occurrence Timing]•Power-on timing•Maintenance Box replacement timing•Maintenance Box monitoring timing [Major Troubleshooting]•Remove and reinstall Maintenance Box•Maintenance Box replacement •Relay Board CSIC Terminal replacement•Relay Board Assy replacement •Relay Board FFC replacement •Main Board replacement[Occurrence Condition]This error occurs when Inkcartridge data is incorrect or Ink cartridge is not recognized correctly.[Major Occurrence Timing]•Power-on timing •Print start timing •Cleaning timing•Ink cartridge replacement timing [Major Troubleshooting]•Remove and reinstall Ink cartridge.•Ink cartridge replacement •CSIC Terminal replacement •CR Contact Module replacement•Head FFC replacement •Main Board replacement[Presumable Cause]•Power Supply Unit damage•Main Board damage •Panel Unit damage [Major Troubleshooting]•Power Supply Unit replacement •Main Board replacement•Panel Unit replacement2* : If the printer can turn on but turns off right away, the protection circuit may cut off the power due to an error such as a circuit failure.The power-on sequence does not start (p 10)1Error is indicated during power-on sequence (p 10)[Occurrence Condition]This error occurs when ink in Ink cartridge is empty.[Major Occurrence Timing]•Power-on timing •Print start timing •Print timing •Cleaning timing•Ink cartridge replacement timing [Major Troubleshooting]Ink cartridge replacement [NOTE]If an error occurs duringprinting, the page where the error occurred is skipped and the printing resumes from the next page.[Occurrence Condition]This error occurs when Ink cartridge is not installed.[Major Occurrence Timing]At power-on[Major Troubleshooting]Install Ink cartridge[Occurrence Condition]This error occurs when Scanner Unit (Printer Cover) is open.[Major Occurrence Timing]•At power-on •During printing[Major Troubleshooting]•Close Scanner Unit (Printer Cover) replacement•Scanner Unit (Printer Cover) replacement•Cover Open Sensor replacement•Main Board replacement[Occurrence Condition]This error occurs if a paper jam occurs during the power-on sequence before initial ink charge.[Major Occurrence Timing]Power-on timing(before initial ink charge)[Major Troubleshooting]Open the scanner unit and remove the CR fixing tape.Please refer to " Paper Jam error".[Occurrence Condition]This error occurs when top/bottom of paper is not detected by PE Sensor in the specified steps of paper feeding operation correctly.[Major Occurrence Timing]•Power-on timing •Paper loading timing •Paper eject timing •Duplex print timing[Major Troubleshooting]1remove the jammed paper by opening Scanner Unit or Printer Cover.2Push “Start” button.3If not resolved by 2), check the following.•Foreign material, bits of paper •Part come-off •PE Lever •PE Sensor•Float of Paper Guide Front Porous Pad •Main Board •PW Sensor [NOTE]* If an error occurs during printing, the page where the error occurred is skipped and the printing resumes from the next page.* If an error occurs during duplex printing, the following are performed.•If an error occurs during the front face of duplex printing, the page where the error occurred and the next page are skipped and the printing resumes from the page after the next.•If an error occurs during the back face of duplex printing, the page where the error occurred is skipped and the printing resumes from the next page.[Occurrence Condition]This error occurs when top of paper is not detected by PE Sensor in the specified steps of paper loading operation correctly.[Major Occurrence Timing]Paper loading timing[Major Troubleshooting]1Put paper in cassette and push “START” button.2If a paper stops before reaching PE Sensor, remove it and check the paper condition.3A)If no damage on the paper, set edge guide correctly after putting paper in cassette and push “PRINT” button again.B)If damage on the paper, check foreign materials / parts come- off / parts transformation in paper path.4If not resolved by 3-A) & 3-B), check the following.•Pickup Roller •Duplex Unit •PE Sensor •Main Board •PF Motor •Casette Assy[Occurrence Condition]This error occurs on the following cases.• A paper is ejected without printing during paper loading operation.•Actual paper length is longer than theoretical one. [Major Occurrence Timing]Paper loading timing [Major Troubleshooting]•PE Lever replacement •PE Sensor replacement •PW Sensor replacement •Main Board replacement [NOTE]This error occurs only for manual duplex print.[Occurrence Condition]This error occurs if one of the cassettes is not installed.[Major Occurrence Timing]Paper loading timing (Front loading)[Major Troubleshooting]Install the Cassette Assy.3Error is indicated during printing nozzle check pattern (p 10)[Occurrence Condition]When printing from Manual Tray (MSF unit), this error occurs if paper is not loaded at the time of data transmission.[Major Occurrence Timing]Paper loading timing (Rear loading)[Major Troubleshooting]•Put paper in the Manual Tray (MSF unit).•PE Sensor replacement •PW Sensor replacement •Main Board replacement[Occurrence Condition]This error occurs if the printer cannot receive the manual feed request.[Major Occurrence Timing]Paper loading timing (Rear loading)[Major Troubleshooting]•Send the print data.•Main Board replacement[Occurrence Condition]This error occurs when the PE Sensor detects paper before manual feed or when paper is inserted too much.[Major Occurrence Timing]Print start timing (Rear loading)[Major Troubleshooting]•Eject paper with panel operation, and load paper again.•Main Board replacement •PE Sensor replacement •PE Lever replacement[Occurrence Condition]This error occurs during manual feed if the PE Sensor detects paper but the paper is not fed by auto loading.[Major Occurrence Timing]Print start timing (Rear loading)[Major Troubleshooting]Eject paper with panel operation, and load paper again.[Occurrence Condition]This error occurs when actual paper size is not matched to theoretical one.[Major Occurrence Timing]•Duplex print timing •FAX data print timing [Major Troubleshooting]1Put correct sized paper in cassette, and push “START” button.2If not resolved by step 1), check the following points.•PE Lever •PE Sensor •PW Sensor •Main Board[Phenomenon]•Poor printing quality•Ink stain on paper•Dot missing•Paper eject without printing [Presumable Cause]•Driver / Panel mis-setting •Contamination of CR scale •Contamination of Printhead Cover•Printhead damage•Ink clogging of Printhead •Contamination on Cap Unit / Wiper of Ink system Assy •Ink system Assy damage •Float of Paper Guide Front Porous Pad•Narrow PG•PE Lever damage•PE Sensor damage•PW Sensor damage[Major Troubleshooting]•Driver / Panel re-setting •CR Scale replacement •Printhead cover cleaning •Printhead cleaning•Ink cartridge replacement •Printhead replacement •Rubber cleaning of Cap Unit of Ink system Assy•Ink system Assy replacement •Paper Guide Front Porous Pad re-installation•PG readjustment•Printer Mechanismreplacement•PE Lever replacement•PE Sensor replacement•PW Sensor replacement [Presumable Cause]•Use of 3rd party media•Edge guide mis-setting•Foreign material•Part come-off•Contamination of paper feedroller (Duplex Unit)•Cassette Assy damage•Pickup Roller deterioration,contamination•Contamination of PF roller[Major Troubleshooting]•Recommendation of EPSONmedia•Edge guide re-setting•Foreign material removal•Part re-installation•PF Roller replacement•Cassette Assy replacement•Pickup Roller replacement[Presumable Cause]•Foreign material•Insufficient grease•Gear damage[Major Troubleshooting]•Foreign material removal•Lubrication of grease•Gear replacement[Phenomenon]•No paper feed•Double feed•Paper jam•Paper skew[Presumable Cause]•Wear of Pickup Roller•Wear of ADF Pad Assy•Gear damage•ADF Motor damage•Contamination of Scanner Glass•ADF Paper Support Assydamage•Foreign material•ADF Cover Assy damage•Wear of EJ Roller•ADF Sensors damage[Major Troubleshooting]•ADF Cover Assy replacement•ADF Pad Assy replacement•Scanner Glass cleaning•ADF Paper Support Assyreplacement•Foreign material removal•ADF Unit replacement45 Problems related to print result or during printing(p 10)Scanning cannot be performed successfully (p 10)[Presumable Cause]•Contamination of Scanner Glass•Contamination of Document Pad•CIS Unit bonding failure •CIS Unit damage •Scanner Motor damage[Major Troubleshooting]•Scanner Glass cleaning •Document Pad cleaning •Document Pad replacement •CIS Unit replacement •Scanner Motor replacement 6ADF does not operate normally (p 10)1.2 Power-On SequenceThis section describes the power-on sequences for this product. The preconditions are as follows. Normal power-on sequence (See Table 1-1.)Turning on the printer after turning it off without an error.Initial ink charge has finished and every cartridge has sufficient ink.No paper on the paper path.The Printhead is capped by the cap of the Ink System and the CR Lock is engaged normally.Table 1-1.Normal Power-on SequenceClockwise:Paper is fed normallyCounterclockwise:Paper is fed backward*2:The conditions of the CR lock are as follows.Red CR lock is setWhite CR lock is released*3:If it cannot be initialized, the fatal error occurs.*4:Confirm that the CR lock is not get stuck in the gap of the carriage or any other parts preventing the carriage from moving.*5:Eject paper if any.*6:Executed when the detected temperature is under 5 o C (41o F) by the thermistor on the Printhead.*7:The empty suction operation may occur depending on situations.The power-on sequence shown in Table 1-1 is the sequence for when the previous power-off is complete normally as indicated in the conditions. If the previous power-off ends abnormally, operations including initialization of APG and such are performed in the following steps.Table 1-1.Normal Power-on Sequence1Prior to Step 4-1Initializes the APG Lever.2Prior to Step 4-2The CR Unit evacuates to the 130-digit side once, and the PF Roller rotates clockwise once, then the cap unit of the Ink System is lowered, and then the CR Unit touches the Right Frame once again for confirmation.3Prior to Step 4-3The CR Unit moves to its CR Lock Position (130-digit side), and the PF Roller rotates counterclockwise to engage the CR Lock. Then the CR Unit touches the CR Lock for confirmation.4Prior to Step 5-5Initializes the APG unit (set to PG1 position). 5Prior to Step 7-1Measurement of the CR Motor1.3 Fatal Error Code ListThis section describes the fatal error code and the possible cause for this product.Printer fatal error listFatal errors related to the ADF/Scanner unit do not occur for WF-7110 Series because this model does not have ADF/Scanner unit.Table 1-2.Fatal Error List (Printer)ADF/Scanner0x01ADF PID excess speed error•ADF Encoder failure (contaminated/detached scale, Encoder Board failure)•Motor driver failure (Main Board failure)0x02ADF PID reverse error •ADF Encoder failure (contaminated/detached scale, Encoder Board failure)•Paper jam0x03ADF PID lock error•ADF Encoder failure (contaminated/detached scale, Encoder Board failure)•ADF Motor failure •Paper jam•Cable disconnection 0x04ADF PID acceleration lock detection error0x05ADF PID excess load error 0X 06ADF PID DRIVING TIME ERROR •Main Board failure0x09ADF BS+ excess speed error•ADF Encoder failure (contaminated/detached scale, Encoder Board failure)•Motor driver failure (Main Board failure)0x0A ADF BS+ reverse error •ADF Encoder failure (contaminated/detached scale, Encoder Board failure)•Paper jam0x0BADF BS+ lock error•ADF Encoder failure (contaminated/detached scale, Encoder Board failure)•ADF Motor failure•ADF drive overload (paper jam/foreign object)•Cable disconnection 0x0D ADF BS+ excess load error0x0E ADF BS+ driving time error •Main Board failure 0x10HP detection error•CIS Unit failure•Scanner Housing failure •Main Board failure 0x11Contact detection distance exceeded error•CIS Unit failure•Scanner Housing failure (Including wrong attachment of the origin mark)•Main Board failure•Scanner FFC failure / Scanner FFC connection failure •Scanner Motor failure / Scanner Motor connection failure0x12Opposite side contact detection distance exceeded error•CIS Unit failure•Scanner Housing failure (Including wrong attachment of the origin mark)•Main Board failure•Scanner FFC failure / Scanner FFC connection failure •Scanner Motor failure / Scanner Motor connection failure0x13Opposite side wrong contact detection distance error•CIS Unit failure•Scanner Housing failure (Including wrong attachment of the origin mark)•Main Board failure•Scanner FFC failure / Scanner FFC connection failure •Scanner Motor failure / Scanner Motor connection failure0x14Measurement failure error •Scanner drive mechanism was overloaded.ADF/Scanner 0x20LED light error•CIS Unit failure•Main Board failure0x30Option error•Main Board failure0x36Paper jam error•Paper jam•Foreign object0x41FB PID excess speed• ADF Encoder failure (contaminated/detached scale, Encoder Boardfailure)•Motor driver failure (Main Board failure)0x42FB PID reverse•ADF Encoder failure (contaminated/detached scale, Encoder Boardfailure)•Paper jam0x43FB PID lock•ADF Encoder failure (contaminated/detached scale, Encoder Boardfailure)•ADF Motor failure•ADF drive mechanism overload (assembling failure, lubrication failure)•Cable disconnection0x44FB PID acceleration lock0x45FB PID excess load0x46FB PID driving time•Main Board failure0x49FB BS+ excess speed•ADF Encoder failure (contaminated/detached scale, Encoder Boardfailure)•Motor driver failure (Main Board failure)0x4A FB BS+ reverse•ADF Encoder failure (contaminated/detached scale, Encoder Boardfailure)0x4B FB BS+ lock•ADF Encoder failure (contaminated/detached scale, Encoder Boardfailure)•ADF Motor failure•ADF drive mechanism overload (assembling failure, lubrication failure)•Cable disconnection0x4D FB BS+ excess load0x4E FB BS+ driving time•Main Board failure0x51Automatic judgment fatal error 1---*0x52Automatic judgment fatal error 20x53Automatic judgment fatal error 30x54Automatic judgment fatal error 40x55Automatic judgment fatal error 5Printer 0x60HP error•Paper jam•Foreign object•Deformation of the Main Frame0x63Contact error at ink replacement timing(Power-off)•Paper jam•Foreign object•Deformation of the Main Frame0x67APG target position acquisition error•APG Motor failure•APG Sensor failure•Main Board failure0x68Contact error at valve initialization •Ink system failure•Main Board failure0x69Contact error at I/S clutch operation0x6B PF runaway error•PF Encoder failure•Motor driver failure0x7F Inspection mode error---* 0x81PIS environmental light error•Ambient light。