Epson WF-7620, WF-7610, WF-7110 Service Manual

Download

SERVICE MANUAL

Color Inkjet Printer

Epson WF-7620 Series Epson WF-7610 Series Epson WF-7110 Series

CONFIDENTIAL

SEMF13-003

Notice:

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 r egistered

trademarks of their respective owners. EPSON disclaims any and all rights in those marks.

Printer CS Quality Assurance Department

Confidential

Safety Precautions

All safety procedures described here shall be strictly adhered to by all parties servicing and maintaining this product.

DANGER

Strictly 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 or performing 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.

WARNING

Strictly 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. If any 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, fo r cleaning during repair and maintenance, the use of such products containing flammable gas is prohibited.

PRECAUTIONS

Strictly 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 for electrician.

3. The power rating of this product is indicated on the serial number/rating plate. Never connect this product to the 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 driving motors 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 or cables.



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.

Confidential

7. In order to protect sensitive microprocessors and circuitry, use static discharge equipment, such as anti-static wrist straps, when accessing internal components.

8. Do not tilt this product immediately after initial ink charge, especially after performing the ink charge several times. 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 with soap 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 parts with sharp edges.

11. Use 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 printhead

  CR Scale  PF Scale  Coated surface of the PF Roller  Gears  Rollers  LCD  Scanner Sensor  Exterior parts

14. Never use oil or grease other than those specified in this manual. Use of different types of oil or grease may damage the component or give bad influence on the printer function.

15. Apply the specified amount of grease described in this manua l .

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 the ink 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 which secure 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 to the corresponding attachment positions on the new one referring to the labels on the returned product.

Confidential

About This Manual

This 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. TROUBLESHOOTING

Describes the step-by-step procedures for the troubleshooting.

CHAPTER 2. DISASSEMBLY / REASSEMBLY

Describes the disassembly/reassembly procedures for main parts/units of the product, and provides the standard operation time for servicing the product.

CHAPTER 3. ADJUSTMENT

Describes the required adjustments for servicing the product.

CHAPTER 4. MAINTENANCE

Describes maintenance items and procedures for servicing the product.

CHAPTER 5. APPENDIX

Provides the following additional information for reference:

• Connector Diagram

• Protection for Transportation

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. 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 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.

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)".

Confidential

Revision Status

Revision Date of Issue Description

A July 26, 2013 First Release B April 21, 2014 Revise the contents

 Chapter 1

 Made change the description in "1.3 Fatal Error Code List (p15)"  "1.4 Status sheet (p20)" has been added.

 Chapter 3

 Made change the description in "3.2.2.2 Preparation (p65)"

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Contents

Chapter 1 Troubleshooting

1.1 Troubleshooting....................................................................................................................................................... 10

1.1.1 Troubleshooting Workflow ............................................................................................................................ 10

1.2 Power-On Sequence ................................................................................................................................................ 13

1.3 Fatal Error Code List............................................................................................................................................... 15

1.4 Status sheet ............................................. ..................................... ............................................................................ 20

1.4.1 Start method of Inspection Mode ................................................................................................................... 20

1.4.2 Description of Status sheet (Non-disclosed information to user)................................................................... 21

Chapter 2 Disassembly/Reassembly

2.1 O verview ................................................................................................................................................................. 24

2.1.1 Tools ............................................................................................................................................................... 24

2.1.2 Jigs .................................................................................................................................................................. 24

2.1.3 Standard Operation Time for servicing the product ....................................................................................... 25

2.2 D isassembly/Reassembly Procedures ..................................................................................................................... 28

2.2.1 Functional differences between models and component parts....................................................................... 28

2.2.2 Functional differences between models and component parts....................................................................... 30

2.2.3 Disassembly Flowchart................................................................................................................................... 31

2.2.3.1 Housing Part (WF-7620/WF-7610 Series) ............................................................................................ 32

2.2.3.2 Housing Part (WF-7110 Series)............................................................................................................. 33

2.2.3.3 Printer Mechanism Part ................................. ..................................... ... ................................................ 34

2.3 Detailed Disassembly/Reassembly Procedure for each Part/Unit........................................................................... 38

2.4 Routing FFCs/cables ............................................................................................................................................... 47

Chapter 3 Adjustment

3.1 Required Adjustments ............................................................................................................................................. 53

3.2 D etails of Adjustments ............................................................................................................................................ 61

3.2.1 PF/CR Timing Belt Tension Measurement .................................................................................................... 61

3.2.1.1 PF Timing Belt Tension Measurement.................................................................................................. 62

3.2.1.2 CR Timing Belt Tension Check............................................................................................................. 63

3.2.2 PG Adjustment ............................................................................................................................................... 64

3.2.2.1 PG Adjustment procedure...................................................................................................................... 64

3.2.2.2 Preparation ............................................................................................................................................. 65

3.2.2.3 PG adjustment procedure....................................................................................................................... 68

3.2.2.4 Checking the Platen Gap........................................................................................................................ 70

3.2.3 Touch Panel Adjustment (WF-7620/7610 Series only) ................................................................................. 71

Chapter 4 Maintenance

4.1 Cleaning................................................................................................................................................................... 76

4.1.1 Cleaning the CR Unit ..................................................................................................................................... 76

4.1.2 Cleaning the Exterior Parts/inside of the printer ............................................................................................ 77

4.2 Lubrication .............................................................................................................................................................. 78

4.3 Lubrication Points and Instructions......................................................................................... ................................ 79

4.4 Firmware Update..................................................................................................................................................... 82

Chapter 5 Appendix

5.1 Connector Diagram ................................................................................................................................................. 85

Confidential

5.2 Protection for Transportation 86

5.2.1 Securing the CR Unit 86

CHAPTER 1

TROUBLESHOOTING

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series

 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 Series

 WF-7110 Series does not have the Scanner/ADF unit, so the troubleshooting for the

Scanner/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.

What is returned reason?

Standby condition

Is printing operation

finished without error?

Start

Turn on the printer

(p 11)

(p 12)

Copy an image

*: In case of “Not Trouble Found”, check fatal error code.

(p 12)

ADF/Scanner

unit failure

Printer failure only

Yes

Does printer turn on the

power?

Is Power-on sequence

finished without error?

Print check pattern

Is printing operation

finished without trouble?

Is scanning operation

finished without

trouble?

Is ADF operation finished

without trouble?

Copy an image by ADF

ADF failure?

Finish

1.1 Troubleshooting

This section describes the troubleshooting workflow.

1.1.1 Troubleshooting Workflow

The following page describes the troubleshooting workflow. Follow the flow when troubleshooting problems.

Revision B

Figure 1-1. Troubleshooting Workflow (1)

Troubleshooting Troubleshooting Workflow 10

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

The power-on

sequence does not start (p 10)

No Power

[Presumable Cause]

• Power Supply Unit damage

• Main Board damage

• Panel Unit damage

[Major Troubleshooting]

• Power Supply Unit replacement

• Main Board replacement

• Panel Unit replacement

* : 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.

Please refer to " 1.3 Fatal Error

Code List (p15)"for

troubleshooting.

Fatal error

Error is indicated during power-on sequence (p 10)

Maintenance error

[Occurrence Condition]

This error occurs when maintenance counter in EEPROM 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)

No Maintenance Box error

[Occurrence Condition]

This error occurs when Maintenance 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.

Maintenance Box detection

[Occurrence Condition]

This error occurs when Maintenance Box data is incorrect or it is not recognized correctly.

[Major Occurrence Timing]

• Power-on timing

• Maintenance Box replacement

• Maintenance Box monitoring

[Major Troubleshooting]

• Remove and reinstall

• Maintenance Box replacement

• Relay Board CSIC Terminal

• Relay Board Assy replacement

• Relay Board FFC replacement

• Main Board replacement

error

timing timing

Maintenance Box

replacement

Ink End error

[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 during printing, the page where the error occurred is skipped and the printing resumes from the next page.

Ink cartridge detection error

[Occurrence Condition]

This error occurs when Ink cartridge 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

No Ink cartridge error

[Occurrence Condition]

This error occurs when Ink cartridge is not installed.

[Major Occurrence Timing]

At power-on

[Major Troubleshooting]

Install Ink cartridge

Cover open error

[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

Paper Jam error

Please refer to " Paper Jam

error".

CR Fixing Tape error

[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.

Error is indicated during printing nozzle check pattern (p 10)

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 timin g

• Duplex print timing

[Major Troubleshooting]

1 remove the jammed paper by opening

Scanner Unit or Printer Cover. 2 Push “Start” button. 3 If 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.

No Paper error

[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]

1 Put paper in cassette and push

“START” button.

2 If a paper stops before reaching

PE Sensor, remove it and check the paper condition.

3 A) If no damage on the paper, s et

edge guide correctly after putting paper in ca ssette and push “PRINT” button again. B) If damage on the paper, check foreign materials / parts come off / parts transforma tion in paper path.

4 If not resolved by 3-A) & 3-B),

check the following.

• Pickup Roller

• Duplex Unit

• PE Sensor

• Main Board

• PF Motor

• Casette Assy

Double Feed error

[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.

No Paper Cassette error

[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.

Paper Size Unmatch error

[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]

1 Put correct sized paper in

cassette, and push “START” button.

2 If not resolved by step 1),

check the following points.

• PE Lever

•PE Sensor

• PW Sensor

• Main Board

Manual Tray No Paper error

[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

Manual Feed Request error

[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

Excessive Manual Feed Error

[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

Insufficient Manual Feed

[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.

error

Figure 1-2. Troubleshooting Workflow (2)

Appendix Troubleshooting Workflow 11

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Problems related to print result or during printing(p 10)

Poor Printing

[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 Mechanism replacement

• PE Lever replacement

• PE Sensor replacement

• PW Sensor replacement

Poor Paper Loading

[Presumable Cause]

• Use of 3rd party media

• Edge guide mis-setting

• Foreign material

• Part come-off

• Contamination of paper feed roller (Duplex Unit)

• Cassette Assy damage

• Pickup Roller deterioration, contamination

• Contamination of PF roller

[Major Troubleshooting]

• Recommendation of EPSON media

• Edge guide re-setting

• Foreign material removal

• Part re-installat ion

• PF Roller replacement

• Cassette Assy replacement

• Pickup Roller replacement

Abnormal Noise

[Presumable Cause]

• Foreign material

• Insufficient grease

• Gear damage

[Major Troubleshooting]

• Foreign material removal

• Lubrication of grease

• Gear replacement

Scanning cannot be performed

successfully (p 10)

Scanner failure

[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

ADF does not operate

normally (p 10)

ADF failure

[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 Assy damage

• 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 Assy replacement

• Foreign material removal

• ADF Unit replacement

Figure 1-3. Troubleshooting Workflow (3)

Appendix Troubleshooting Workflow 12

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

1.2 Power-On Sequence

This 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 Sequence

Operation

1. Printhead initialization

1-1.Initializes the Printhead.

2. Checking for waste ink overfl ow

2-1.Checks the waste ink counter if the waste ink overflow is occurring.

CR Unit/PF Roller

movement and position

CRUnit

APGLever CRLock

0130

0130 HP

3. Avoiding deadlock sequence

3-1.The CR Unit moves to the 0-digit side slowly and confirms it touches the Right Frame.

3-2.The CR Unit moves to the 80-digit side up to its home position.

3-3.The PF Motor rotates clockwise, and releases the CR lock.

4. Seeking the home position

4-1.The carriage moves to the 0-digit side slowly and confirms it touches the Right Frame.

4-2.By regarding the position where the CR Unit touches the Right Frame as the specified distance from the origin, the

home position is determined. Thereafter, the position of the CR Unit is monitored based on the information provided by the CR Encoder.

4-3.The CR Unit slowly moves to its home position.

5. PF initialization

5-1.The CR Unit moves slowly about 3 cm to the 130-digit side.

5-2.The PF Roller rotates counterclockwise quickly.

0130 HP

5-3.The CR Unit moves to ASF trigger ON => OFF positions.

5-4.The PF Motor rotates clockwise for approx. one second.

5-5.The PF Roller rotates clockwise for about one second.

5-6.The PE sensor detects if paper exists and the PF Motor rotates clockwise for approx. 0.5 second.

0130 HP

Appendix 13

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

0130 HP

1Prior to Step 4-1 Initializes the APG Lever.

2 Prior to Step 4-2

The 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 4-3

The 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. 4 Prior to Step 5-5 Initializes the APG unit (set to PG1 position). 5Prior to Step 7-1 Measurement of the CR Motor

Table 1-1. Normal Power-on Sequence

CR Unit/PF Roller

movement and position

0130 HP

6. Low temperature operation sequence

6-1.The CR Unit returns its home position.

Operation

6-2.The CR Unit moves between around the switch lever and in front of the Left Frame two times.

7. PF measurement and PW sensor initialization

7-1. The CR Unit slightly moves to the 0-digit side.

7-2.The carriage moves to the VHCheck position (130-digit side) quickly and stops; meanwhile the voltage values

detected by the PW sensor at the specified three points are recorded. At the same time, the PF Motor rotates clockwise and measures the load.

7-3.The CR Unit detects the voltage of the PW sensor at the carriage stop position (the black area at the Paper Guide

Front).

7-4.The CR Unit returns near its home position. At the same time, the PF Motor rotates clockwise and measures the

load.

8. Detecting ink cartridge and initializing ink system

8-1.The CR Unit slowly returns to its home position.

8-2.To check the operation of the PIS Sens or and to detect ink, the CR Unit moves back and for th between th e CR Unit

and near the APG Lever for two times.

9. CR lock setting

9-1.The CR Unit moves to its home position.

0130 HP

9-2.The PF Roller rotates counterclockwise to lock the CR Unit with the CR Lock.

Note *1: The rotation directions of the PF Motor are as follows.

Clockwise: Paper is fed normally Counterclockwise: Paper is fed backward

*2: The conditions of the CR lock are as follows.

Red CR lock is set

White 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

C (41oF) 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.

0130 HP

Appendix 14

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

1.3 Fatal Error Code List

This section describes the fatal error code and the possible cause for this product.

Fatal errors related to the ADF/Scanner unit do not occur for WF-7110 Series because this model does not have ADF/Scanner unit.

 Printer fatal error list

Table 1-2. Fatal Error List (Printer)

Error type

ADF/Scanner

Error

code

0x01 ADF PID excess speed error

0x02 ADF PID reverse error

0x03 ADF PID lock error • ADF Encoder failure (contaminated/detached scale, Encoder Board

0x04

0x05 ADF PID excess load error 0

0x09 ADF BS+ excess speed error

0x0A ADF BS+ reverse error

0x0B ADF BS+ lock error • ADF Encoder failure (contaminated/detached scale, Encoder Board

0x0D ADF BS+ excess load error

0x0E ADF BS+ driving time er ro r • Main Board failure

0x10 HP detection error

0x11

0x12

0x13

0x14 Measurement failure error • Scanner drive mechanism was overloaded.

ADF PID acceleration lock detection error

X06 ADF PID DRIVING TIME ERROR • Main Board failure

Contact detection distance exceeded error

Opposite side contact detection distance exceeded error

Opposite side wrong contact detection distance error

Error name Possible cause

• ADF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Motor driver failure (Main Board failure)

• ADF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Paper jam

failure)

• ADF Motor failure

• Paper jam

• Cable disconnection

• ADF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Motor driver failure (Main Board failure)

• ADF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Paper jam

failure)

• ADF Motor failure

• ADF drive overload (paper jam/foreign object)

• Cable disconnection

• CIS Unit failure

• Scanner Housing failure

• Main Board failure

• 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 failure

• 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 failure

• 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 failure

Appendix 15

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Table 1-2. Fatal Error List (Printer)

Error type

ADF/Scanner

Printer

Error

code

0x20 LED light error

0x30 Option error • Main Board failure

0x36 Paper jam error

0x41 FB PID excess speed

0x42 FB PID reverse

0x43 FB PID lock • ADF Encoder failure (contaminated/detached scale, Encoder Board 0x44 FB PID acceleration lock

0x45 FB PID excess load

0x46 FB PID driving time • Main Board failure

0x49 FB BS+ excess speed

0x4A FB BS+ reverse

0x4B FB BS+ lock • ADF Encoder failure (contaminated/detached scale, Encoder Board

0x4D FB BS+ excess load

0x4E FB BS+ driving time • Main Board failure 0x51 Automatic judgment fatal error 1 0x52 Automatic judgment fatal error 2 0x53 Automatic judgment fatal error 3 0x54 Automatic judgment fatal error 4 0x55 Automatic judgment fatal error 5

0x60 HP error

0x63

0x67 APG target position acquisition error

0x68 Contact error at valve initialization 0x69 Contact error at I/S clutch operation

0x6B PF runaway error

0x7F Inspection mode error --0x81 PIS environmental light error • Ambient light

Contact error at ink replacement timing (Power-off)

Error name Possible cause

• CIS Unit failure

• Main Board failure

• Paper jam

• Foreign object

• ADF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Motor driver failure (Main Board failure)

• ADF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Paper jam

failure)

• ADF Motor failure

• ADF drive mechanism overload (assembling failure, lubrication failure)

• Cable disconnection

• ADF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Motor driver failure (Main Board failure)

• ADF Encoder failure (contaminated/detached scale, Encoder Board failure)

failure)

• ADF Motor failure

• ADF drive mechanism overload (assembling failure, lubrication failure)

• Cable disconnection

---*

• Paper jam

• Foreign object

• Deformation of the Main Frame

• Paper jam

• Foreign object

• Deformation of the Main Frame

• APG Motor failure

• APG Sensor failure

• Main Board failure

• Ink system failure

• Main Board failure

• PF Encoder failure

• Motor driver failure

Appendix 16

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Table 1-2. Fatal Error List (Printer)

Error type

Printer

Error

code

0x82 PIS constant reflection error

0x83 No reflected light error

0x84 PIS abnormal misalignment error 0x85 PIS abnormal duty error 0x86 PIS Duty incalculable error • Main Board failure 0x87 PIS Empty jig error

0x88 PIS Excessive Light error

0x89 PIS Insufficient Light error

0x8D Factor error other than printer device

0x8E Driver mismatch error An unsupported driver was used. 0x8F EEPROM verify error (by command) ---

0x93 PE Sensor error

0x97

0x9A Circuit error (include blowout of a fuse) 0x9B Transistor temperature error 0x9C X-Hot detect error (pre printing) 0x9D X-Hot detect error (after flushing) 0x9E Head temperature error 0x9F No print inspection mode error ---

0xB0-

0xCF

0xD1 ADF PID excess load error

0xD2 ASF PID excess speed error

0xD3 ADF PID reverse error

0xD4 ASF PID lock error

Head drive circuit VBS over-voltage error

Ink device error

Error name Possible cause

• PIS failure

• Main Board failure

• Ambient light

• Fault Detection Plate failure

• PIS failure (installation posture, contamination)

• PIS failure

• Main Board failure

• PIS failure

• Main Board failure

• Diffused light

• PIS failure (installation posture, contamination)

• Fault Detection Plate failure

• Main Board failure

• Ink cartridge failure

This error occurs if the printer becomes a fatal error status due to a failure of parts other than the printer such as the scanner or ADF.

• PE Sensor failure

• Main Board failure

• Head FFC failure

• Main Board failure

• Printhead failure

• Main Board failure

• Ink cartridge failure

• CSIC Terminal failure

• CR Contact Module failure

• Main Board failure

• ASF Encoder failure (contaminated/detached scale, Encoder Board failure)

• ASF Motor failure

• Pickup Roller (2nd cassette) drive mechanism overload (paper jam/ foreign object)

• Cable disconnection

• ASF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Motor driver failure (Main Board failure)

• ASF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Paper jam

• ASF Encoder failure (contaminated/detached scale, Encoder Board failure)

• ASF Motor failure

• Pickup Roller (2nd cassette) drive mechanism overload (paper jam/ foreign object)

• Cable disconnection

---*

Appendix 17

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Table 1-2. Fatal Error List (Printer)

Error type

Printer

Error

code

0xD6 ASF PID excess torque limitation error

0xD8 ASF load position reverse error

0xD9 ASF load position excess speed error

0xDA ASF load position excess load error

0xDE ASF PID driving time error

0xDF ASF load position driving time error

0xE1 CR PID excess load error

0xE2 CR PID excess speed error

0xE3 CR PID reverse error

0xE4 CR PID lock error

0xE5 CR PID speed fall error

0xE8 CR load position reverse error

0xE9 CR load position excess speed error

0xEA CR load position excess load error

0xEB APG driving time error • Main Board failure

0xEC APG excess speed error

Error name Possible cause

Pickup Roller (2nd cassette) drive mechanism overload (paper jam/foreign object)

• ASF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Paper jam

• ASF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Motor driver failure (Main Board failure)

• ASF Encoder failure (contaminated/detached scale, Encoder Board failure)

• ASF Motor failure

• Pickup Roller (2nd cassette) drive mechanism overload (paper jam/ foreign object)

• Cable disconnection

• Main Board failure

• CR Encoder failure (contaminated/detached scale, Encoder Board failure)

• CR Motor failure

• Carriage overload error (paper jam/foreign object)

• Cable disconnection

• CR Encoder failure (contaminated/detached scale, Encoder Board failure)

• Motor driver failure (Main Board failure)

• Tooth skip of the CR Timing Belt

• Improper tension of the CR Timing Belt

• CR Encoder failure (contaminated/detached scale, Encoder Board failure)

• Tooth skip of the CR Timing Belt

• Improper tension of the CR Timing Belt

• Paper jam

• CR Encoder failure (contaminated/detached scale, Encoder Board failure)

• CR Motor failure

• Carriage overload error (paper jam/foreign object)

• Cable disconnection

• CR Encoder failure (contaminated/detached scale, Encoder Board failure)

• Motor driver failure (Main Board failure)

• Tooth skip of the CR Timing Belt

• Improper tension of the CR Timing Belt

• Paper jam

• CR Encoder failure (contaminated/detached scale, Encoder Board failure)

• Tooth skip of the CR Timing Belt

• Improper tension of the CR Timing Belt

• Paper jam

• CR Encoder failure (contaminated/detached scale, Encoder Board failure)

• Motor driver failure (Main Board failure)

• Tooth skip of the CR Timing Belt

• Improper tension of the CR Timing Belt

• CR Encoder failure (contaminated/detached scale, Encoder Board failure)

• CR Motor failure

• Carriage overload error (paper jam/foreign object)

• Cable disconnection

• APG Sensor failure

• APG Motor failure

• Tooth skip of APG drive gear

Appendix 18

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Table 1-2. Fatal Error List (Printer)

Error type

Printer

Error

code

0xEE CR PID driving time error 0xEF CR load position driving time error

0xF1 PF PID excess load error

0xF2 PF PID excess speed error

0xF3 PF PID reverse error

0xF4 PF PID lock error

0xF6 PF PID excess torque limitation error ---

0xF8 PF load position reverse error

0xF9 PF load position excess speed error

0xFA PF load position excess load error

0xFE PF PID driving time error 0xFF PF load position driving time error

Error name Possible cause

• Main Board failure

• PF Encoder failure (contaminated/detached scale, Encoder Board failure)

• PF Motor failure

• PF drive mechanism overload (paper jam/foreign object)

• Cable disconnection

• PF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Motor driver failure (Main Board failure)

• Tooth skip of the PF Timing Belt

• Improper tension of the PF Timing Belt

• PF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Tooth skip of the PF Timing Belt

• Improper tension of the PF Timing Belt

• Paper jam

• PF Encoder failure (contaminated/detached scale, Encoder Board failure)

• PF Motor failure

• PF drive mechanism overload (paper jam/foreign object)

• Cable disconnection

• PF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Tooth skip of the PF Timing Belt

• Improper tension of the PF Timing Belt

• PF Encoder failure (contaminated/detached scale, Encoder Board failure)

• Motor driver failure (Main Board failure)

• Tooth skip of the PF Timing Belt

• Improper tension of the PF Timing Belt

• PF Encoder failure (contaminated/detached scale, Encoder Board failure)

• PF Motor failure

• PF drive mechanism overload (paper jam/foreign object)

• Cable disconnection

• Main Board failure

Note "*": Not occurs except in manufacturing process.

Appendix 19

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Power on button Home button

* button

Stop button

Power on button Stop button

Lower button

Home button

Run : Color / Select : [3][6]

1. Printer Inspection Mode

2. Special Inspection

3. FAX Inspection

4. Touch Screen Inspection

5. Development Inspection

6. FAX Development inspection

7. Status Sheet Print Mode

8. Normal Mode

Inspection Mode

3. STSheet Mode

[WF-7620/7610 series]

[WF-7110 series]

1.4 Status sheet

This section describes the Status sheet for this product.

 This product can print the three kind of status sheet, and you can confirm the following

information.

• C o nfiguration Status Sheet

• Supply Status Sheet

• Usage History Sheet

 This product has Non-disclosed information to user.

This information can be displayed on the Status sheet by starting the product with the Inspection Mode.

1.4.1 Start method of Inspection Mode

1. From a power off status, push the following button until the message is displayed on LCD.

 WF-7620/7610 series

 WF-7110 series

2. Select the following items from the Inspection menu.

WF-7620/7610 series : “7.Status Sheet Print Mode”

  WF-7110 series : “3. STSheet Mode”

3. The product starts as usual.

4. Print the Status sheets.

Appendix Start method of Inspection Mode 20

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

1.4.2 Description of Status sheet (Non-disclosed information to user)

 Supply Status sheet

Table 1-3. Supply Status sheet (Non-disclosed information to user)

Item Content Item Content

Consumable information <Ink Cartridge>

Ink residual quantity Residual quantity in formation of the

Ink Cartridge. (each color)

Consumable information <Maintenance Box>

Maintenance Box residual quantity

Residual quantity information of the Maintenance Box

Appendix Description of Status sheet (Non-disclosed information to user) 21

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

 Usage History Sheet

Table 1-4. Usage History Sheet

Item Content Item Content

Number of Sheets Loaded

Cassette 1 Number of sheets loaded from 1st

cassette

Paper feed slot Number of sheet loaded from paper

feed slot.

Number of sheets scanned

ADF Number of sheets scanned from ADF

Unit.

Number of Replacement

Ink Cartridge Number of replacement of Ink

Cartridge

Cassette 2 Number of loaded from 2nd cassette

Scanner Glass Number of sheets scanned from

Scanner Glass.

Maintenance Box Number of replacement of

Maintenance Box

Appendix Description of Status sheet (Non-disclosed information to user) 22

Confidential

CHAPTER 2

DISASSEMBLY/REASSEMBLY

Confidential

Epson WF-7620/7610/7110 Series Revision B

2.1 Overview

This chapter describes procedures for disassembling the main parts/units of WF-7620/7610/7110 Series. Unless otherwise specified, disassembled parts/units can be reassembled by reversing the disassembly procedure. See the cautions or tips for disassembly/reassembly described in "2.3 Detailed Disassembly/Reassembly Procedure

for each Part/Unit (p38)".

Read the " Safety Precautions (p3)" before disassembling and reassembling. When you have to remove units or parts that are not described in this chapter, see the exploded diagrams of SPI

(Service Parts Information).

2.1.1 Tools

Use only specified tools to avoid damaging the printer.

Name Availability EPSON Part Code

(+) Phillips screwdriver #1 O 1080530 (+) Phillips screwdriver #2 O --Flathead screwdriver O --Flathead Precision screwdriver #1 O --Tweezers O --Longnose pliers O --Nippers O ---

Note 1: Some of the tools listed above are commercially available.

2: EPSON provides the tools listed with EPSON part code.

2.1.2 Jigs

Name Q’ty EPSON Part Code

Thickness gauge (1.6mm) 1 Commercially available Thickness gauge (1.42mm) 1 Commercially available Thickness gauge (1.52mm) 1 Commercially available Thickness gauge (1.72mm) 1 Commercially available Thickness gauge (1.82mm) 1 Commercially available Teflon tape (thickness: 0.08 mm) 1 Commercially available

Disassembly/Reassembly Overview 24

Confidential

Epson WF-7620/7610/7110 Series Revision B

2.1.3 Standard Operation Time for servicing the product

The following are the standard operation time for servicing the product. Those are based on the MTTR result measured using a prototype of WF-7620 Series that has the most functions among these product series. For WF7610 Series and WR-7110 Series the standard operation time differs slightly due to the differences in structure, however, perform servicing referring to this operation standard time.

The underlined parts/units are supplied as After Service Parts.

Table 2-1. Standard Operation Time for servicing the product

Time

Parts/Unit

Replacement

USB Cover 0:44 --- 0:44 Lower Case 1:14 --- 1:14 Pickup Holder 1st 0:23 --- 0:23 Pickup Roller 1st Pickup Holder 2nd 0:10 --- 0:10 Pickup Roller 2nd Decoration Plate 0:45 --- 0:45 Panel Unit Speaker Cover 2:12 --- 2:12 Speaker 2:12 --- 2:12 Duplex Unit Cover Assy MSF Unit 0:11 4:43 4:54 MSF Stopper Belt 0:37 --- 0:37 Assist Roller Holder Assy 0:14 4:43 4:57 Paper Stopper Assy 2nd 0:50 --- 0:50 ADF Pad Assy Document Pad MSF Cover ADF Cover Assy

LD Shaft 0:42 --- 0:42 ADF LD Assy

ADF/Scanner Unit 9:28 --- 9:28

ADF Unit

ADF Decoration Plate Front ADF Decoration Plate Rear ADF Cover Right ADF Cover Front ADF Cover Rear ADF Paper Support Cover 17:13 --- 17:13 Paper Support Encoder Sensor 17:45 --- 17:45 ADF Paper Support Assy ADF Motor Unit 23:59 0:46 24:45 ADF Frame Base 23:59 --- 23:59

Scanner Unit

Scanner Housing Upper Assy 17:42 --- 17:42

0:53 --- 0:53

0:23 --- 0:23

1:50 0:26 2:16

0:50 4:43 5:33

0:19 --- 0:19 0:14 --- 0:14 0:06 --- 0:06 0:31 --- 0:31

1:14 --- 1:14

14:42 0:46 15:28 14:55 --- 14:55 14:52 --- 14:52 15:03 --- 15:03 17:48 --- 17:48 16:52 --- 16:52

19:00 --- 19:00

14:42 0:58 15:40

Adjustment/

Inspection

Total

Disassembly/Reassembly Overview 25

Confidential

Epson WF-7620/7610/7110 Series Revision B

Table 2-1. Standard Operation Time for servicing the product

Time

Parts/Unit

Replacement

Scanner FFC Cover 18:43 --- 18:43 Scanner Motor Assy 19:18 0:58 20:16

CIS Module 18:46 --- 18:46 Hinge Left 9:52 --- 9:52 Hinge Right 9:52 --- 9:52 Housing Upper Assy 12:02 --- 12:02

Duplex Unit Cover Open Sensor 12:26 --- 12:26 Housing Upper

Housing Front Assy 14:43 --- 14:43

Cover Open Sensor Housing Front

Main Board Unit

Cable Support Plate 21:59 --- 21:59 Wireless LAN Module Shield Plate Upper (w/Wireless LAN Module) 22:30 --- 22:30 Main Board (read OK) Main Board (read NG)

Shield Plate Lower (w/Cable Support Plate) 24:01 --- 24:01 Stacker Assy FAX Unit

FAX Shield Plate /FAX Connector Cover 16:08 --- 16:08

FAX Board Head FFC Cover Holder Board Assy

CSIC Terminal 15:45 --- 15:45

CR Contact Module 16:13 --- 16:13

Holder Board 16:13 --- 16:13 Printhead Cover 15:45 --- 15:45 Printhead Tube Clamp Ink system Assy Gear Cover 16:33 --- 16:33 Pickup Assy 1st Cover Cartridge Guide IC Power Supply Unit Relay Board FFC Guide 15:27 --- 15:27 Holder Cam Assy Waste Ink Tray Cover 16:05 --- 16:05 Relay Board Assy

Relay Board CSIC Terminal 17:10 --- 17:10

Relay Board 17:03 --- 17:03

12:50 --- 12:50

15:05 --- 15:05 15:27 --- 15:27 21:27 --- 21:27

22:15 --- 22:15

24:01 2:25 26:26 24:01 17:32 41:33

14:50 --- 14:50 15:21 --- 15:21

16:08 --- 16:08 15:07 --- 15:07 15:36 --- 15:36

17:37 23:44 41:21 14:58 --- 14:58 16:09 --- 16:09

17:56 --- 17:56 14:50 --- 14:50 15:08 --- 15:08 16:00 3:26 19:26

16:04 --- 16:04

16:47 --- 16:47

Adjustment/

Inspection

Total

Disassembly/Reassembly Overview 26

Confidential

Epson WF-7620/7610/7110 Series Revision B

Table 2-1. Standard Operation Time for servicing the product

Time

Parts/Unit

Replacement

Relay Board Holder 17:26 --- 17:26 Waste Ink Tray Holder 17:31 --- 17:31 APG Unit Support Plate 15:11 --- 15:11 APG Driven Shaft 19:23 --- 19:23 Paper Guide Upper Assy CR Scale CR Driven Pulley Assy 16:31 1:00 17:31 APG Driven Shaft Support Plate 16:32 --- 16:32 PE Sensor 23:53 --- 23:53 CR Guide Frame Assy (w/CR Unit) 27:41 16:24 44:05 Front Frame 29:03 7:45 36:48 PG Adjustment Cam Right 28:13 5:40 33:53 CR Scale Support Plate 28:09 --- 28:09 PG Adjustment Cam Left 28:43 5:40 34:23 Star Wheel Assy Frame Base 2nd Assy

ASF Motor Assy 41:21 0:35 41:56

Spur Gear 16 41:25 --- 41:25

Pickup Assy 2nd 43:09 --- 43:09 Paper Stopper Assy 1st 40:57 --- 40:57 One Way Clutch Gear 33:21 --- 33:21 Main Board Unit

PF Motor 42:15 0:26 42:41

CR Motor 41:53 0:41 42:34

PE Lever 45:59 0:38 46:37

Paper Guide Middle 46:16 --- 46:16

PE Sensor 46:31 0:38 47:09 Paper Guide Lower Porous Pad APG Unit 42:04 --- 42:04

21:22 8:15 29:37 15:37 --- 15:37

30:45 1:37 32:22 40:07 4:02 44:09

41:18 19:37 60:55

41:23 0:13 41:36

Adjustment/

Inspection

Total

Disassembly/Reassembly Overview 27

Confidential

Epson WF-7620/7610/7110 Series Revision B

Cassette Assy 1st

Cassette Assy 2nd

Duplex Unit

2.2 Disassembly/Reassembly Procedures

2.2.1 Functional differences between models and component parts

In "2.2.3 Disassembly Flowchart (p31)", the procedures are indicated on the premise that some parts/units are removed in advance. Make sure to remove the following parts/units before sta r ting disassembly.

 Cassette Assy 1st / 2nd

 Duplex Unit

Figure 2-1. Removing the Cassette Assy 1st/2nd

Figure 2-2. Removing the Duplex Unit

Disassembly/Reassembly Disassembly/Reassembly Procedures 28

Confidential

Epson WF-7620/7610/7110 Series Revision B

Maintenance Box

 Maintenance Box

Figure 2-3. Removing the Maintenance Box

Disassembly/Reassembly Disassembly/Reassembly Procedures 29

Confidential

Epson WF-7620/7610/7110 Series Revision B

2.2.2 Functional differences between models and component parts

WF-7620/7610/7110 Series described in this manual have differences in their structure because the same printer mechanism is used for some of them and the composition of housings or functions differs.

The functions and differences according to the models are as follows.

Table 2-2. Function List According to Models

Item

ADF/Scanner

Panel

Second cassette (Frame Base 2nd) O --- O FAX O O --Wireless LAN O O O Disassembly Flowchart Start Position p 32 p 33

Compatible O O --Non-compatible --- --- O Electrostatic Pad type O O --LED & Button type --- --- O

WF-7620 Series WF-7610 Series WF-7110 Series

Table 2-3. Components According to Functions

Item Specification

The following units and parts are not mounted on the models without the ADF/Scanner.

ADF/Scanner

Panel Unit

Second cassette (Frame Base 2nd)

• ADF Unit

• Scanner Unit With Panel Unit, the shape, components and disassembly order in the disassembly procedures differ depending

on the specification of the panel.

 The following units and parts are not mounted on the models without the second cassette.

• Frame Base 2nd Assy

Multifunction Printer Single function Printer

 With Multifunction Printer, the disassembly procedures differ depending on whether or

not having the Second cassette.

• Paper Stopper Assy 1st

• Pickup Assy 1st

• Lower Case

FAX The FAX Unit is not mounted on the model without the FAX.

Therefore, parts and units are colored and classified into 2 types in the flowchart given in this section. After checking the functions and differences in the components shown above, see the disassembly procedures.

Common parts/units in Multifunction Printer or Single function Printer Black Model-specific parts/units Red

Disassembly/Reassembly Disassembly/Reassembly Procedures 30

Confidential

Epson WF-7620/7610/7110 Series Revision B

Item Description Reference

Parts/unit name

White-letter

Part/unit supplied as an ASP ---

Black-letter

Part/unit not supplied as an ASP ---

Icon

Indicates a practice or condition that could result in injury or loss of life if not strictly observed.

Indicates the reference page in blue-letter

Indicates a practice or condition that could result in damage to, or destruction of equipment if not strictly observed.

Indicates the reference page in blue-letter

Indicates the parts that are inevitably broken in the disassembling procedure, and should be replaced with a new one for reassembly.

---

Indicates necessary check items in the disassembling/ assembling procedure.

Indicates the reference page in blue-letter

Indicates supplementary explanation for disassembly is given.

Indicates the reference page in blue-letter

Indicates particular tasks to keep quality of the units are required.

Indicates the reference page in blue-letter

Indicates particular routing of cables is required.

Indicates the reference page in blue-letter

Indicates particular adjustment(s) is/are required.

Chapter 3 " Adjustment (p52)"

Indicates lubrication is required.

Chapter 4 " Maintenance

(p75)"

Indicates the number of screws securing the parts/units. --Indicates the points secured with other than a screw

such as a hook, rib, dowel or the like.

---

USB Cover

1 4

(p 22) (p 43)

Main Frame Unit

---

(p 21) (p 27)

Paper Guide

Upper Assy (p29)

 CR Timing Belt  FFC/Cable * 1

Note "*": The boxes with only part names indicates the removal of such parts. If the names of FFCs or cables are

shown, disconnect the FFCs or cables from their connectors.

Black letters indicate a part/unit not supplied as an ASP.

The name enclosed in gray indicate a part/unit that must be removed on the way to the target parts.

Shows necessary procedures before removing the following parts.*

Shows the procedure number on the “FFC/ cable list”.

White letters indicate a part/unit supplied as an ASP.

Shows the screw types and the specified torque in the “Screw type/torque list”.

Shows removal/installation as a unit/assy. is available.

Reference page

2.2.3 Disassembly Flowchart

This section describes procedures for disassembling the parts/units in a flowchart format. For some parts/units, detailed procedures or precautions are provided (accordingly indicated by icons and cell's color). Refer to the explanations in the example chart below and perform an appropriate disassembling and assembling procedure. (See "2.3 Detailed Disassembly/Reassembly Procedure for each Part/Unit (p38)".) For routing cables, see "2.4 Routing FFCs/cables (p47)".

The example below shows how to see the charts on the following pages.

Disassembly/Reassembly Disassembly/Reassembly Procedures 31

Confidential

Epson WF-7620/WF-7610/WF-7110 Series Revision B

S20

S18

S19

S20

2.2.3.1 Housing Part (WF-7620/WF-7610 Series)

START

USB Cover

(p 41) (p 48)

 FFC/Cable* 1

ADF/Scanner

Unit

(p 38)

Hinge Left

---

Decoration Plate

(p32)

 FFC/Cable* 3

Housing Upper

Assy

(p 47)

Panel Unit (p32)

 FFC/Cable* 4

Housing Front

Assy

(p 41) (p 48)

(p 34)

---

Lower Case

---

Pickup Holder

1st

(p 41)

---

Pickup Roller 1st

---

(p 36)

(p 41)

---

(p 75)

Hinge Right

---

Pickup Holder

2nd

(p 41)

Pickup Roller 2nd

(p 41)

---

(p 75)

Decoration Plate

---

 FFC/Cable* 2

Panel Unit

(p 48) (p 52)

Speaker Cover

---

Duplex Unit

Cover

---

(p 52)

---

MSF Unit

---

ADF Pad Assy

---

(p 32)

---

(p 39)

---

MSF Stopper

Belt

---

Document Pad

(p 40)

Assist Roller Holder Assy

(p 41)

---

MSF Cover

---

Paper Stopper

Assy 2nd

(p 41)

(p 75)

ADF Cover Assy

(p 38)

(p 32)

---

(p 36)

FFC/cable list

Speaker

---

(p 36)

Specific parts/unit

Common parts/unit

(p 36)

 With WF-7620/WF-7610 Series, some parts differ depending on the models, so the disassembly procedures in this

flowchart differ. For the details, see "2.2.2Functional differences between models and component parts

(p30)" and refer to the flowchart.

 See"2.2.3.3Printer Mechanism Part (p34)" for disassembly of the Housing Part of WF-7110.

No. FFC/Cable

 Disconnect the following FFC and cables from the connectors on the

Main Board, and release their routing.

• ADF motor cable (CN33)

• ADF PE sensor cable (CN71)

• ADF document sensor cable (CN72)

• ADF encoder sensor cable (CN73)

• Paper Support Encoder Sensor cable (CN76)

• ADF plunger cable (CN77)

• Scanner Motor cable (CN32)

• Scanner FFC (CN70)

• Scanner Open Sensor cable (CN74)

 Disconnect the FFCs/Cables.

• Panel FFC (CN20)

• Speaker cable

 Disconnect the Panel Grounding Wire (S02).  Disconnect the Duplex Unit Cover Open Sensor cable from the

connector (CN60) on the Main Board, and release the routing.

 Disconnect the following FFC and cable from the connectors on the

Main Board.

• Panel FFC (CN20)

• Cover Open Sensor cable (CN53)

 Disconnect the Panel Grounding Wire (S11).

Screw type/torque list

Symbol

C.B.P-TITE SCREW 2.5x8 F/ZN-3C 4 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x10 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x10 F/ZN-3C 8

C.B.P-TITE SCREW 3x5 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x8 F/ZN-3C 6

C.B.P-TITE(P4) SCREW 3x8 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE(S-P1) SCREW 3x12 F/ZB-3C 6

C.B.P-TITE(S-P1) SCREW 3x12 F/ZN-3C 6 ± 1kgfÅEcm

C.B.S-TITE SCREW 2.6x6 F/ZN-3C 4

S10

C.B.S-TITE SCREW 3x6 F/ZN-3C 6 ± 1kgfÅEcm

S11

C.B.S-TITE SCREW 3x6 F/ZN-3C 8

S12

C.B.S-TITE(P4) SCREW 3x10 F/ZN-3C 6 ± 1kgfÅEcm

S13

C.B.S-TITE(P4) SCREW 3x8 F/ZN-3C 6

S14

C.C SCREW 3x5 F/ZN-3C 8 ± 1kgfÅEcm

S15

C.P SCREW 3x4 F/ZN-3C 6

S16

C.P-TITE SCREW 2.5x6 F/ZN-3C 3 ± 0.5kgfÅEcm

S17

C.P-TITE SCREW 3x4 F/ZN-3C 3 C.B.S-TITE SCREW 3x8 F/ZN-3C 6 ± 1kgfÅEcm C.B.S-TITE SCREW 3x8 F/ZN-3C 8 C.B.P-TITE SCREW 3x10 F/ZB-3C 6 ± 1kgfÅEcm

Screw Type Torque

± 1kgfÅEcm

± 0.5kgfÅEcm

± 1kgfÅEcm

Flowchart 2-1. Disassembly Flowchart of Housing Part (1)

Disassembly/Reassembly 32

Confidential

Epson WF-7620/WF-7610/WF-7110 Series Revision B

S20

S18

S19

S20

2.2.3.2 Housing Part (WF-7110 Series)

START

USB Cover

(p 45) (p 48)

Panel Unit (p33)

Screw Cover

(p33)

Cover Open

Sensor Cover

(p33)

Cover Open Sensor (p33)

 FFC/Cable* 5

Housing Upper

Assy

(p 47)

(p 34)

Lower Case

---

Pickup Holder

1st

(p 41)

---

Pickup Roller 1st

Pickup Holder

2nd

(p 41)

Pickup Roller 2nd

---

(p 41) (p 75)

---

(p 37)

 Panel FFC

---

Paper Stopper

Assy 2nd

S18

(p 41)

Panel Unit

(p 46)

(p 33)

(p 75)

S20

(p 47) (p 52)

---

MSF Cover

---

Specific parts/unit

Common parts/unit

Printer Cover

Duplex Unit

---

Screw Cover

---

FFC/cable list

No. FFC/Cable

 Pull out the following cable from the hole on the Housing Upper Assy.

• Cover Open Sensor cable

• Panel FFC

 Disconnect the Duplex Unit Cover Open Sensor cable from the

connector (CN60) on the Main Board, and release the routing.

Cover

---

Cover Open

Sensor Cover

---

 Cover Open Sensor

Cable

Cover Open

Sensor

(p 47)

MSF Unit

---

MSF Stopper

Belt

---

Screw type/torque list

Symbol

C.B.P-TITE SCREW 2.5x8 F/ZN-3C 4 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x10 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x10 F/ZN-3C 8

C.B.P-TITE SCREW 3x5 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x8 F/ZN-3C 6

C.B.P-TITE(P4) SCREW 3x8 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE(S-P1) SCREW 3x12 F/ZB-3C 6

C.B.P-TITE(S-P1) SCREW 3x12 F/ZN-3C 6 ± 1kgfÅEcm

C.B.S-TITE SCREW 2.6x6 F/ZN-3C 4

S10

C.B.S-TITE SCREW 3x6 F/ZN-3C 6 ± 1kgfÅEcm

S11

C.B.S-TITE SCREW 3x6 F/ZN-3C 8

S12

C.B.S-TITE(P4) SCREW 3x10 F/ZN-3C 6 ± 1kgfÅEcm

S13

C.B.S-TITE(P4) SCREW 3x8 F/ZN-3C 6

S14

C.C SCREW 3x5 F/ZN-3C 8 ± 1kgfÅEcm

S15

C.P SCREW 3x4 F/ZN-3C 6

S16

C.P-TITE SCREW 2.5x6 F/ZN-3C 3 ± 0.5kgfÅEcm

S17

C.P-TITE SCREW 3x4 F/ZN-3C 3 C.B.S-TITE SCREW 3x8 F/ZN-3C 6 ± 1kgfÅEcm C.B.S-TITE SCREW 3x8 F/ZN-3C 8 C.B.P-TITE SCREW 3x10 F/ZB-3C 6 ± 1kgfÅEcm

Assist Roller Holder Assy

(p 41)

---

Screw Type Torque

± 1kgfÅEcm

± 0.5kgfÅEcm

± 1kgfÅEcm

(p 33)

Flowchart 2-2. Disassembly Flowchart of Housing Part (2)

Disassembly/Reassembly 33

Confidential

Epson WF-7620/WF-7610/WF-7110 Series Revision B

S10

S11

S12

S11

S18

S19

S20

2.2.3.3 Printer Mechanism Part

WF-7620/WF-7610 Series: (p 32)

WF-7110 Series: (p 33)

 FFC/Cable* 6

Main Board Unit

S11

(p 42) (p 49)

(p 52)

CR Scale (p35)

CR Driven

Pulley Assy (p35)

 Head FFC

CR Guide Frame

Assy

(w/CR Unit)

S13

(p 44)

(p 50) (p 52) (p 75)

Stacker Assy

---

(p 37)

 FAX FFC

FAX Unit

(p 48)

Head FFC Cover

---

 CIS FFC

(p 37)

 Ink tube

Tube Clamp

Cover Cartridge

---

Guide IC

 FFC/Cable* 7

Power Supply

Unit

(p 52)

(p 35)

---

Ink system Assy

(p 42) (p 75)

---

 PF Encoder FFC

Holder Board

---

(p 37)

PF Encoder

Sensor

(p 45)

---

Printhead Cover

---

Gear Cover

---

(p 43) (p 75)

 Head FFC

Lower Case

(p32)

Pickup Assy 1st

(p 42) (p 75)

Front Frame

S11

(p 44) (p 52) (p 75)

 PIS FFC

Star Wheel Assy

S11

(p 44) (p 50)

(p 52)

Tube Clamp

(p34)

Ink system Assy

(p34)

Relay Board

FFC Guide (p35)

(p 35)

CR Scale Sup-

port Plate

---

PG Adjustment

Cam Left

---

(p 35)

PG Adjustment

Cam Right

---

Printhead

(p 43)

(p 52)

FFC/cable list

No. FFC/Cable

 Disconnect all the FFCs and cables connected to the Main Board.

• Disconnect the FAX FFC from FAX Unit.

Specific parts/unit

Common parts/unit

• Grounding Wire(S10)

Disconnect the Power Supply Unit cable from the connector (CN501) on

the Main Board, and release the routing.

Flowchart 2-3. Disassembly Flowchart of Printer Mechanism Part (1)

Screw type/torque list

Symbol

C.B.P-TITE SCREW 2.5x8 F/ZN-3C 4 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x10 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x10 F/ZN-3C 8

C.B.P-TITE SCREW 3x5 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x8 F/ZN-3C 6

C.B.P-TITE(P4) SCREW 3x8 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE(S-P1) SCREW 3x12 F/ZB-3C 6

C.B.P-TITE(S-P1) SCREW 3x12 F/ZN-3C 6 ± 1kgfÅEcm

C.B.S-TITE SCREW 2.6x6 F/ZN-3C 4

S10

C.B.S-TITE SCREW 3x6 F/ZN-3C 6 ± 1kgfÅEcm

S11

C.B.S-TITE SCREW 3x6 F/ZN-3C 8

S12

C.B.S-TITE(P4) SCREW 3x10 F/ZN-3C 6 ± 1kgfÅEcm

S13

C.B.S-TITE(P4) SCREW 3x8 F/ZN-3C 6

S14

C.C SCREW 3x5 F/ZN-3C 8 ± 1kgfÅEcm

S15

C.P SCREW 3x4 F/ZN-3C 6

S16

C.P-TITE SCREW 2.5x6 F/ZN-3C 3 ± 0.5kgfÅEcm

S17

C.P-TITE SCREW 3x4 F/ZN-3C 3 C.B.S-TITE SCREW 3x8 F/ZN-3C 6 ± 1kgfÅEcm C.B.S-TITE SCREW 3x8 F/ZN-3C 8 C.B.P-TITE SCREW 3x10 F/ZB-3C 6 ± 1kgfÅEcm

Screw Type Torque

± 1kgfÅEcm

± 0.5kgfÅEcm

± 1kgfÅEcm

Disassembly/Reassembly 34

Confidential

Epson WF-7620/WF-7610/WF-7110 Series Revision B

S11

S18

S19

S20

Gear Cover

(p34)

One Way Clutch

Gear

---

APG Unit

Support Plate

(p35)

 FFC/Cable* 9

Main Frame

Unit

S11

(p 45)

(p 51) (p 52) (p 75)

Paper Guide

Lower Porous

Pad

(p 52)

(p 34)

---

(p 34)

 FFC/Cable* 8

(p 34)

 Torsion Spring

Waste Ink Tray

Cover (p35)

Relay Board

Assy (p35)

CR Driven

Pulley Assy (p35)

Relay Board

FFC Guide

(p 49)

APG Unit Sup-

port Plate

---

CR Scale

---

(p 43)

 FFC/Cable* 10

 Ink tube

Frame Base 2nd

(p 45)

Assy

(p 50) (p 52)

---

(p 37)

Waste Ink Tray

Cover

(p 49)

Holder Cam

Assy

---

S11

(p 43)

 Relay Board FFC

Paper Stopper

Assy 1st

S18

(p 41) (p 75)

---

(p 37)

Relay Board

Assy

(p 49)

Waste Ink Tray

Holder

---

(p 37)

APG Unit

---

APG Driven

Shaft Support

Plate (p35)

CR Scale (p35)

CR Driven

Pulley Assy (p35)

APG Driven

Shaft

---

(p 43)

 Torsion Spring 241.9 (x6) 

Extension Spring 0.99 (x2)

Paper Guide

Upper Assy

---

(p 44)

(p 52)

 Extension Spring

CR Driven Pul-

ley Assy

(p 52) (p 75)

---

(p 52)

---

FFC/cable list

No. FFC/Cable



Release the following FFC and cable from the Relay Board FFC Guide.

• Relay Board FFC

• CR Motor cable

 Release the routing of following FFC and cables.

• Relay Board FFC

• CR Motor cable

• PE Sensor cable

• PF Motor cable

Specific parts/unit

Common parts/unit

 Release the routing of following FFC and cables.

• ASF Motor cable

• ASF Encoder FFC

• Frame Base 2nd Assy Paper Stopper sensor cable

APG Driven

Shaft Support

Plate

---

Screw type/torque list

Symbol

C.B.P-TITE SCREW 2.5x8 F/ZN-3C 4 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x10 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x10 F/ZN-3C 8

C.B.P-TITE SCREW 3x5 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x8 F/ZN-3C 6

C.B.P-TITE(P4) SCREW 3x8 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE(S-P1) SCREW 3x12 F/ZB-3C 6

C.B.P-TITE(S-P1) SCREW 3x12 F/ZN-3C 6 ± 1kgfÅEcm

C.B.S-TITE SCREW 2.6x6 F/ZN-3C 4

S10

C.B.S-TITE SCREW 3x6 F/ZN-3C 6 ± 1kgfÅEcm

S11

C.B.S-TITE SCREW 3x6 F/ZN-3C 8

S12

C.B.S-TITE(P4) SCREW 3x10 F/ZN-3C 6 ± 1kgfÅEcm

S13

C.B.S-TITE(P4) SCREW 3x8 F/ZN-3C 6

S14

C.C SCREW 3x5 F/ZN-3C 8 ± 1kgfÅEcm

S15

C.P SCREW 3x4 F/ZN-3C 6

S16

C.P-TITE SCREW 2.5x6 F/ZN-3C 3 ± 0.5kgfÅEcm

S17

C.P-TITE SCREW 3x4 F/ZN-3C 3 C.B.S-TITE SCREW 3x8 F/ZN-3C 6 ± 1kgfÅEcm C.B.S-TITE SCREW 3x8 F/ZN-3C 8 C.B.P-TITE SCREW 3x10 F/ZB-3C 6 ± 1kgfÅEcm

Screw Type Torque

± 1kgfÅEcm

± 0.5kgfÅEcm

± 1kgfÅEcm

Flowchart 2-4. Disassembly Flowchart of Printer Mechanism Part (2)

Disassembly/Reassembly 35

Confidential

Epson WF-7620/WF-7610/WF-7110 Series Revision B

S18

S19

S20

LD Shaft

(p 75)

 Extension Spring

ADF LD Assy

(p 38)

Duplex Unit Cover Open Sensor Assy

---

Hinge Right

(p32)

Housing Upper

---

(p 32)

(p 52)

(p 36)

(p 32)

 FFC/Cable* 11

 FFC/Cable* 16

---

ADF Unit

---

(p 52)

ADF Decoration

Plate Front

(p 38)

---

ADF Decoration

Plate Rear

(p 38)

ADF Cover

Right

---

(p 39)

---

ADF Decoration

Plate Rear (p36)

ADF Cover

Right (p36)

ADF Cover Assy

(p32)

ADF Cover

Front

(p 39)

ADF Cover

Rear (p36)

ADF Paper

Support Cover

(p36)

Paper Support

Encoder Sensor

(p36)

ADF Paper

Support Assy

(p36)

 FFC/Cable* 14

ADF Cover Rear

(p 39)

ADF Paper

Support Cover

(p 40)

---

 FFC/Cable* 12

Paper Support

Encoder Sensor

(p 40)

---

 FFC/Cable* 13

---

ADF Motor Unit

(p 47) (p 52)

ADF Paper

Support Assy

---

(p 40) (p 47)

---

ADF Frame Base

---

Specific parts/unit

---

Common parts/unit

Scanner Unit

---

 Grounding Wire

(p 52) (p 75)

Scanner FFC

Cover

---

Scanner Housing

Upper Assy

 Scanner FFC

CIS Module

(p 40) (p 47)

FFC/cable list

No. FFC/Cable

Pull out the cables of ADF Unit from the hole on the

Scanner Unit.

12 Disconnect the Paper Support Encoder Sensor cable.

Release the routing of the Paper Support Encoder Sensor

cable.  Release the routing of the following cables.

16 Release the routing of the Cover Open Sensor cable.

• Paper Support Encoder Sensor cable

• ADF plunger cable

 Disconnect the Grounding Wire  Release the routing of the Scanner Motor Assy cable.

(p 40)

 E-ring 

Combination Gear25.2.9.0553



Combination Gear21.6.10.8

 Spacer  Scanner Rail Strengthen

Plate Grounding Spring

---

 FFC/Cable* 15

Scanner Motor

(p 47)

Screw type/torque list

Symbol

C.B.P-TITE SCREW 2.5x8 F/ZN-3C 4 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x10 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x10 F/ZN-3C 8

C.B.P-TITE SCREW 3x5 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE SCREW 3x8 F/ZN-3C 6

C.B.P-TITE(P4) SCREW 3x8 F/ZN-3C 6 ± 1kgfÅEcm

C.B.P-TITE(S-P1) SCREW 3x12 F/ZB-3C 6

C.B.P-TITE(S-P1) SCREW 3x12 F/ZN-3C 6 ± 1kgfÅEcm

C.B.S-TITE SCREW 2.6x6 F/ZN-3C 4

S10

C.B.S-TITE SCREW 3x6 F/ZN-3C 6 ± 1kgfÅEcm

S11

C.B.S-TITE SCREW 3x6 F/ZN-3C 8

S12

C.B.S-TITE(P4) SCREW 3x10 F/ZN-3C 6 ± 1kgfÅEcm

S13

C.B.S-TITE(P4) SCREW 3x8 F/ZN-3C 6

S14

C.C SCREW 3x5 F/ZN-3C 8 ± 1kgfÅEcm

S15

C.P SCREW 3x4 F/ZN-3C 6

S16

C.P-TITE SCREW 2.5x6 F/ZN-3C 3 ± 0.5kgfÅEcm

S17

C.P-TITE SCREW 3x4 F/ZN-3C 3 C.B.S-TITE SCREW 3x8 F/ZN-3C 6 ± 1kgfÅEcm C.B.S-TITE SCREW 3x8 F/ZN-3C 8 C.B.P-TITE SCREW 3x10 F/ZB-3C 6 ± 1kgfÅEcm

Assy

(p 47) (p 52)

Cover Open

Sensor

(p 48)

Speaker Cover

(p32)

Speaker (p32)

 Grounding Wire  Panel FFC  Ferrite core (x3)

Housing Front

---

Screw Type Torque

± 1kgfÅEcm

± 0.5kgfÅEcm

± 1kgfÅEcm

---

Flowchart 2-5. Disassembly Flowchart of Printer Mechanism Part (3)

Disassembly/Reassembly 36

Confidential

Epson WF-7620/WF-7610/WF-7110 Series Revision B

S10

S16

S14

S15

S18

S19

S20

Duplex Unit

Cover Open Sen-

sor Assy

---

Housing Upper

---

 Extension Spring  PF Timing Belt

PF Motor

(p 45) (p 50)

(p 52)

(p 33)

(p 35)

(p 34)

Cable Support

Plate

---

 Wireless LAN Module

cable(CN9)

Wireless LAN

Module

S11

---

Shield Plate

Upper

(w/Wireless LAN

---

Module)

S11

(p 43)

FAX Shield Plate

/FAX Connector

FAX Board

---

Main Board

S17

(p 52)

---

Cover

---

S19

(p 34)

(p 35)

---

(p 34)

CR Contact

Module

---

Relay Board

CSIC Terminal

---

CSIC T erminal

Relay Board

---

(p37)

(p 35)

Relay Board

---

Relay Board

Holder

---

Holder Board

---

Shield Plate

Lower (w/Cable

Support Plate)

 CR Motor cable

CR Motor

APG Driven

Shaft Support

Plate (p35)

APG Driven

Shaft (p35)

---

Paper Guide

---

(p 51) (p 52)

---

Upper Assy (p35)

PE Lever Assy

(p 52)

---

Paper Guide

Middle

 Acetate Tape  Grounding Wire(S10)  FFC/Cable* 17

ASF Motor Assy

---

Spur Gear 16

---

Lower Case

(p32)

---

(p 75)

 PE sensor cable

Pickup Assy 2nd

(p 42) (p 75)

PE Sensor

FFC/cable list

(p 51) (p 52)

---

Specific parts/unit

Common parts/unit

No. FFC/Cable

 Release the routing of the following FFC and cable.

• ASF Motor cable

• ASF Motor Encoder FFC

---

Screw type/torque list

Symbol

S10

S11

S12

S13

S14

S15

S16

S17

C.B.P-TITE SCREW 2.5x8 F/ZN-3C 4 ± 1kgfÅEcm C.B.P-TITE SCREW 3x10 F/ZN-3C 6 ± 1kgfÅEcm C.B.P-TITE SCREW 3x10 F/ZN-3C 8 C.B.P-TITE SCREW 3x5 F/ZN-3C 6 ± 1kgfÅEcm C.B.P-TITE SCREW 3x8 F/ZN-3C 6 C.B.P-TITE(P4) SCREW 3x8 F/ZN-3C 6 ± 1kgfÅEcm C.B.P-TITE(S-P1) SCREW 3x12 F/ZB-3C 6 C.B.P-TITE(S-P1) SCREW 3x12 F/ZN-3C 6 ± 1kgfÅEcm C.B.S-TITE SCREW 2.6x6 F/ZN-3C 4 C.B.S-TITE SCREW 3x6 F/ZN-3C 6 ± 1kgfÅEcm C.B.S-TITE SCREW 3x6 F/ZN-3C 8 C.B.S-TITE(P4) SCREW 3x10 F/ZN-3C 6 ± 1kgfÅEcm C.B.S-TITE(P4) SCREW 3x8 F/ZN-3C 6 C.C SCREW 3x5 F/ZN-3C 8 ± 1kgfÅEcm C.P SCREW 3x4 F/ZN-3C 6 C.P-TITE SCREW 2.5x6 F/ZN-3C 3 ± 0.5kgfÅEcm C.P-TITE SCREW 3x4 F/ZN-3C 3 C.B.S-TITE SCREW 3x8 F/ZN-3C 6 ± 1kgfÅEcm C.B.S-TITE SCREW 3x8 F/ZN-3C 8 C.B.P-TITE SCREW 3x10 F/ZB-3C 6 ± 1kgfÅEcm

Screw Type Torque

± 1kgfÅEcm

± 0.5kgfÅEcm

± 1kgfÅEcm

Flowchart 2-6. Disassembly Flowchart of Printer Mechanism Part (4)

Disassembly/Reassembly 37

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

ADF Unit

Scanner Unit

Hook

Bottom of ADF/Scanner Unit

Check point

ADF hinge spacer

ADF hinge

ADF hinge spacers

ADF hinges

ADF hinge spacer

Check point

ADF hinge

Hook

ADF Decoration Plate Front

Rib

ADF Decoration

Plate Front

ADF Decoration Plate Rear

ADF Decoration

Plate Rear

Hook Rib

ADF LD Assy

Extension Spring 0.99 ADF Cover Assy

LD Shaft edge

LD Shaft

Shaft of ADF LD Assy

Left

Lock Release Shaft

Cover Lock

Release Link

Cover Lock

Release

Middle Link

Right

Lock Release Shaft

Cover Lock Release Rear Link

ADF LD Assy

2.3 Detailed Disassembly/Reassembly Procedure for each Part/Unit

ADF Decoration Plate Front/Rear (WF-7620/7610 Series)

ADF Unit/Scanner Unit (WF-7620/7610 Series)

When removing the ADF Decoration Plate Front/Rear, release the hooks and ribs beforehand.

ADF LD Assy (WF-7620/7610 Series)

Inside of ADF Cover Assy (WF-7620/7610 Series)

The ADF hinge spacers are inserted to the hooks on the ADF hinges to prevent the ADF Unit from disengaging from the Scan ner Unit by the shocks caused when the ADF Unit is opened or closed. When the ADF hinge spacers are set in their regular positions, the hooks on the ADF hinges cannot be released; however, by turning the ADF/Scanner Unit upside down, the ADF hinge spacers move from the regular positions, and then the hooks on the ADF hinges can be released.

When removing the ADF Unit/Scanner Unit, place it with its bottom up and release the hooks (x3) shown above in advance.

When installing the ADF Unit/Scanner Unit, make sure that the ADF hinge spacers (x2) are inserted at the hooks (x2) on the ADF hinges.

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 38

 Attach the extension spring 0.99 as shown above.  After installing the ADF LD Assy to the ADF Cover Assy,

install the LD shaft while aligning the shape of its end wit h that of the shaft of the ADF LD Assy.

If the Cover Lock Release Link, the Cover Lock Release Middle Link or the Cover Lock Release Rear Link comes off when removing the ADF LD Assy, attach it back as shown above.

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Bottom

ADF Cover Right

Hook Dowel

Front

At Dowel

Release the hooks (x9) and the dowel in the order shown above, then remove the ADF Cover Rear.

Rear of ADF Cover Right

ADF Cover Assy

ADF Cover Right

ADF Cover Right ADF Unit

ADF Cover Rear

ADF Cover Assy

Bottom

ADF Pad Assy

Center hook

Front

Rear of ADF Cover Front

Center hook

Release the hooks (x5) in the order shown above, then remove the ADF Cover Front.

Hook Dowel

ADF Unit

ADF Cover Front

ADF Unit (WF-7620/7610 Series) (1)

ADF Unit (WF-7620/7610 Series) (2)

The figures above indicate the hooks and dowels that secure the parts and units.

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 39

The figures above indicate the hooks and dowels that secure the parts and units.

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

C.B.P-TITE SCREW 3x8 F/ZN-3C (6±1 kgf·cm)

ADF Paper Support Assy

Dowel Shaft

ADF Paper Support Cover

Paper Support Encoder Sensor cable

Paper Support Encoder Sensor

Standard line

ADF Unit

20 mm

262 mm

26 mm

147.5 mm147.5 mm

168.5 mm 127 mm30 mm 30 mm

30 mm30 mm

75 mm

438.5 mm

75 mm

Sponge positions on back of Document Pad

Document Pad

Scanner Housing Lower

Bottom of Scanner Unit

C.B.P-TITE SCREW 3x10 F/ZB-3C (6±1 kgf

·cm)

Scanner Housing Upper Assy

9 8 10

C.B.P-TITE SCREW 3x10 F/ZN-3C (6±1 kgf

·cm)

Upper of Scanner Unit

Scanner Carriage

Torsion Spring 43.6

Scanner Timing Belt

Protrusion

Attach to CIS module

side inner than this

projection.

Back of Scanner Carriage

CIS Module

Spring

Foot 1

Section A

Scanner Rail Strengthen

Plate Grounding Spring

Spring Foot 2

Scanner Motor

Scanner Rail Strengthen Plate

Dowel of Scanner Housing Lower

Scanner grounding wire

Cutout

Scanner Motor Plate

C.B.P-TITE(S-P1) SCREW 3x12 F/ZN-3C (6±1 kgf·cm)

Hole

Scanner FFC Cover

Scanner Housing Lower

Hook A

Scanner FFC Cover

Hook B

Install with the hook

A in this way.

Bottom of Scanner Unit

ADF Paper Support Cover/Paper Support Encoder Sensor/ADF Paper Support Assy

(WF-7620/7610 Series)

On the ADF Paper Support Assy for the WF-7620/7610 Series, the Paper Support Encoder Sensor for paper width detection is mounted. Because the ADF Paper Support Assy is connected with the ADF unit by the Paper Support Encoder Sensor cable, release the routing of the cable following the disassembly procedure below.

Remove the ADF Paper Support Cover/Paper Support Encoder Sensor/ADF Paper Support Assy as follows.

1. Release the dowels (x2) and shafts (x2) on the ADF Paper Support Assy, and turn the assy upside down.

2. Remove the screws (x2) that secure the ADF Paper Support Cover, and remove the ADF Paper Support Cover.

3. Remove the screw that secures the Paper Support Encoder Sensor, and disconnect the Paper Support Encoder Sensor cable from the connector on the Paper Support Encoder Sensor, then remove the sensor.

4. Release the routing of the Paper Support Encoder Sensor cable, then remove the ADF Paper Support Assy.

Document Pad (WF-7620/7610 Series)

 Attach double-sided tape on the pieces of sponge on the Document Pad indicated in green in the figure above, and attach the Document Pad to the

ADF Unit.

 After attaching the Document Pad, make sure the Document Pad is attached within the standard line shown above and the sponge pieces are not

sticking out from the Document Pad.

Scanner Housing Upper Assy (WF-7620/7610 Series)

Tighten the screws in the order indicated in the figure above.

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 40

Scanner Carriage (WF-7620/7610 Series)

If the Torsion Spring 43.6 has come off from the Scanner Timing Belt, attach it to the CIS module side inner than this projection on the Scanner Carriage.

Scanner Motor Assy (WF-7620/7610 Series)

 Tighten the screws in the order indicated in the figure above.  Secure the scanner grounding wire and the Scanner Motor Assy

together with the screw 2 shown above.

 When attaching the Scanner Rail Strengthen Plate Grounding

Spring, follow the procedure below.

1. Insert the spring leg 1 of the Scanner Rail Strengthen Plate Grounding Spring into the hole of the Scanner Rail Strengthen Plate.

2. Attach the section A of the Scanner Rail Strengthen Plate Grounding Spring to the dowel of the Scanner Housing Lower.

3. Attach the spring leg 2 of the Scanne r R ail Strengthen Plate Grounding Spring to the cutout of the Scanner Motor Plate.

Scanner FFC Cover (WF-7620/7610 Series)

When installing the Scanner FFC Cover, install it with the hook A of the cover to the rear of the printer, and secure the cover to the Scanner Housing Lower in the order of hook B and hook A.

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Hook

C.B.P-TITE SCREW 3X10 F/ZN-3C (6±1 kgf·cm)

USB Cover

Paper Stopper

Compression

Spring 0.9

Compression

Spring 0.787

Secure springs (x4) with dowels.

Slider Base

Cam Slider

Slider Cassette

C.B.S-TITE SCREW 3x8 F/ZN-3C (6±1kgf·cm)

1 2

Paper Stopper Assy 1st

Common to all

Paper Stopper Assy 2nd

WF-7620/7110 Series

C.B.S-TITE SCREW 3x8 F/ZN-3C (6±1kgf·cm)

Assist Roller Holder Assy

Hook Dowel

Assist Roller Holder Assy

Assist Roller

Upper

Housing Front Assy

Upper

Housing Front Assy

Hook

C.B.P-TITE SCREW 3x10 F/ZN-3C (6±kgf·cm)

Left

Housing Front Assy

Stacker Assy

Right

Housing Front Assy

Hook

Pickup Holder 1st/

Pickup Roller 1st

(Common to all)

Pickup Holder 1st

To 0 digit To 130 digit

Rubber portions

Pickup Roller 1st

Hook

Pickup Holder 2nd/

Pickup Roller 2nd

(WF-7620/7610 Series)

Pickup Holder 2nd

To 0 digitTo 130 digit

Rubber portions

Pickup Roller 2nd

USB Cover (WF-7620/7610 Series)

Paper Stopper Assy 1st/2nd (1)

Paper Stopper Assy 1st/2nd (2)

Assist Roller Holder Assy

Be careful not to damage the hooks (x7) that secure the USB Cover.

When removing the USB Cover, remove the screws (x2) shown above and slide the cover in the direction of the arrow to remove it.

If any of the parts of the Paper Stopper Assy 1st/2nd comes off when removing it, be sure to reassemble the Paper Stopper Assy 1st/2nd as shown above.

Housing Front Assy (WF-7620/7610 Series)

Tighten the screws in the order indicated in the figure above.

Pickup Holder 1st/2nd, Pickup Roller 1st/2nd

When removing the Assist Roller Holder Assy, remove the Assist Roller and then release the hook and dowels (x2) beforehand.

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 41

Remove the Housing Front Assy as follows.

1. Pull out the Stacker Assy taking care not to let it interfere with the Housing Front Assy.

2. Remove the screws (x2) that secure the Housing Front Assy.

3. Release the hooks (x2) on the Housing Front Assy, then remove the Housing Front Assy.

 Be careful not to touch the rubber potions on the Pickup Roller 1st/2nd with bare hands.  When removing the Pickup Roller 1st, take care not to drop or lose the parts because its removal should be done in a very narrow space.

When removing the Pickup Holder 1st/2nd, make sure to release the hooks shown above beforehand.

 When installing the Pickup Roller 1st/2nd, install the roller shafts on them in the order of the shaft on the 130-digit side and the one on the 0 digit

side.

 When installing the Pickup Holder 1st/2nd, make sure the attachment directions of the holders are correct.

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Upper

Main Board Unit

C.B.S-TITE SCREW 3x6 F/ZN-3C (8±1 kgf·cm)

FAX Unit

WF-7620/7610 Series only

C.B.P-TITE SCREW 3x10 F/ZN-3C (6±1 kgf·cm) C.B.P-TITE SCREW 3x10 F/ZN-3C (8±1 kgf·cm)

Rear

Tube Clamp

Rib

Waste Ink Tube

Ink system Assy

Dowel

Hole

Frame Base 1st Assy

Ink system Assy

Waste Ink Tray Cover

Waste Ink Tube

Maintenance

Box Waste

Ink Joint

Tube Clamp

Cap Slider

C.B.P-TITE SCREW 3x10 F/ZN-3C (6±1 kgf·cm)

Slide the Cap Slider in the direction of the arrow, then secure the Ink System with a screw.

Waste Ink Tray Cover

Pickup Driven ShaftPickup Escape Lever

Pickup Assy 1st

The location where

the Pickup Escape

Lever interferes.

Bottom

Pickup Assy 1st

(Common to all)

Spur Gear 32

Hook

Upper

C.B.P-TITE SCREW 3x10 F/ZN-3C (6±1 kgf·cm)

Pickup Escape LeverPickup Driven Shaft

The location where

the Pickup Escape

Lever interferes.

Spur Gear 16

Upper

Pickup Assy 2nd

(WF-7620/7110 Series)

Pickup Assy 2nd

Bottom

Main Board Unit

Ink system Assy

The screws that secure the Main Board Unit are shown above.

Tighten the screws in the order indicated in the figure above.

Pickup Assy 1st/2nd

When removing the Pickup Assy 1st / 2nd, follow the procedure below.

1. Release the Pickup Assy 1st / 2nd from the Pickup Escape Lever.

2. Remove the screws (x1 each) that secure the Pickup Assy 1st / 2nd.

3. Pickup Assy 1st: Release the hook of the Spur Gear 32 and remove the Spur Gear 32 from the Pickup Driven Shaft, and then pull out the

4. Pickup Assy 2nd: Remove the Pickup Driven Shaft from the Spur Gear 16, and remove the Pickup Assy 2nd from the 2nd Bin Base Assy.

shaft from the hole of the Frame Base Assy, and remove the Pickup Assy 1st.

When connecting the Waste Ink Tube to the Maintenance Box Waste Ink Joint, connect it until the edge of the tube touches the root on the joint to prevent waste ink from leaking.

When installing the Ink System Assy, follow the procedure below.

1. Route the Waste Ink Tube under the Main Frame.

2. Aligning the dowels (x3) on the Ink System Assy with the holes (x3) on the Frame Base 1st Assy.

3. Secure the Ink System Assy with screws (x2).

4. Connect the joint section of the Waste Ink Tube with the joint of the Maintenance Box Waste Ink Joint, then secure them with the Tube Clamp.

5. Route the Waste Ink Tube through the ribs (x2) on the Frame Base.

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 42

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Gear Cover

Rear

Gear Cover

Hook

Shield Plate Upper (w/Wireless LAN Module)

C.B.S-TITE SCREW 3x6 F/ZN-3C (8±1 kgf·cm)

Holder Cam AssyD/E Lever

Protrusion Groove

Main frame

CR Unit

Slit of CR Encoder

Black mark

CR Scale

Torsion Spring 7.13

Cutout of Main Frame

Bottom of Printhead

Waste ink pad

Printhead

CR unit

Section A

C.B.P-TITE SCREW 2.5x8 F/ZN-3C (4±1 kgf·cm)

Right

APG Driven Shaft

Spur gear 32.4

APG Driven Shaft

Insert protrusion.

Aligning phases

Gear of APG Driven Shaft

Spur gear 32.4

Align the triangle marks.

APG UnitMain Frame Unit

Gear Cover

Release the hooks (x3) shown above before removal.

Shield Plate Upper (w/Wireless LAN Module)

The screws (x4) that secure the Shield Plate Upper (w/ Wireless LAN Module) are shown above.

Tighten the screws in the order indicated in the figure above.

Holder Cam Assy

When installing the Holder Cam Assy to the Main Frame, insert the protrusion of the D/E Lever into the groove of the Holder Cam Assy.

CR Scale



Install the CR Scale with the black mark section on the top left.



Make sure to put the CR Scale through the slit of the CR Encoder.



When attaching the Torsion Spring 7.13, follow the procedure below.

1. Attach the Torsion Spring 7.13 to the CR Guide Plate, and hook the shorter leg of the Torsion Spring 7.13 on the CR Scale.

2. Hook the longer le g of the Torsion Spring 7.13 to the cutout of the Main Frame to complete the Torsion Spring 7.13 attachment.

 Waste ink easily collects around the waste ink pad on the Printhead after printing and around the section A of the CR Unit shown above. When

 After removing the Printhead, place the Printhead with the nozzle surface up so as to preve nt the remainin g ink in the Print head from flowing out.

Tighten the screws in the order indicated in the figure above.

Printhead

removing the Printhead, take care not to let the terminal of the disconnected FFC touch the area around the section A. When reassembling the Printhead, be careful not to let the terminal of the disconnected FFC touch the area around the waste ink pad. Take care in the same way when replacing the Printer Mechanism and transferring the Printhead. If you connect the FFC to the connector with waste ink attached on the terminal, the circuit board may be short-circuited. Therefore, if any waste ink is attached on the terminal, make sure to wipe the ink off completely with a dry cloth or the like.

APG Driven Shaft

Because the disassembly/reassembly of the APG Driven Shaft should be done in a very narrow space, take care not to damage the gears of the APG Driven Shaft or APG Unit by hitting them with the edges of the frame or the like.

Install the APG Driven Shaft as follows.

1. Insert the gear of the APG Driven Shaft into the space between the APG Unit and Main Frame Unit.

2. Insert the protrusion of the APG Driven Shaft into the hole on the Main Frame Unit.

3. Align the phases of the gear of the APG Driven Shaft and the Spur Gear 32.4 on the APG Unit, then attach the APG Driven Shaft.

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 43

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Rear

Paper Guide Mid Assy

Hook

To Printer 's front

Paper Guide L/R Assy

Sub levers

Paper Guide R Assy

Torsion spring 241.9 L Torsion spring 241.9 R Extension spring 0.99

Paper Guide Mid Assy

Paper Guide ML Assy

Paper Guide MR Assy

Paper Guide L Assy

0-digit side

CR Motor's pinion gear

CR unit

CR Unit's bottom

Rail

Nozzle plate surface of Printhead

CR guide frame assy

130-digit side

Guide

C.B.S-TITE(P4) SCREW 3x8 F/ZN-3C (6±1 kgf·cm) C.B.S-TITE SCREW 3x6 F/ZN-3C (8±1 kgf·cm)

CR guide frame assy

CR Guide Frame Stoppers

Front Frame

Bottom of Front Frame

Standard line

Antistatic Cloth

C.B.S-TITE SCREW 3x6 F/ZN-3C (8±1 kgf·cm)

Front Frame

Section A

Front

Main Frame Unit

C.B.S-TITE SCREW 3x6 F/ZN-3C (8±1 kgf·cm)

130-digit side

Rib and Hole

Main Frame Unit

PIS FFC

Hole on Paper Guide Front

Bottom of Star Wheel Assy

Star Wheel Assy Detector on PIS Sensor

Main Frame Unit

Paper Guide Upper Assy

In this manual, the Paper Guide Mid Assy/Paper Guide ML Assy/Paper Guide MR Assy/Paper Guide L Assy/Paper Guide R Assy are called the Paper Guide Upper Assy collectively.

When removing the Paper Guide Mid Assy, release the hooks (x2), and then pull it out toward the front of the printer.



Install the Paper Guide Mid Assy/Paper Guide ML Assy/Paper Guide MR Assy/Paper Guide L Assy/Paper Guide R Assy to the positions shown above.

 Install the Paper Guide L Assy and Paper Guide R Assy with the sub levers inward.  Install the Torsion spring 241.9 L, Torsion spring 241.9 R, and Extension spring 0.99 to the positions shown above.

CR Guide Frame Assy (w/CR Unit)

If you remove the CR guide frame assy (w/ CR Unit) with the Printhead mounted on the CR Unit, take care not to damage the nozzle plate sur face of the Printhead.

Remove the CR guide frame assy (w/ CR Unit) as follows.

1. Move the CR Unit to the end on the 130-digit side, and detach its rail from the guide on the Front Frame.

2. Remove the screws (x2) that secure the CR guide frame stoppers (x2), and remove the stoppers.

3. Remove the screws (x4) that secure the CR guide frame assy (w/ CR Unit).

4. Disengage the hole on the CR guide frame assy (w/ CR Unit) from the pinion gear of the CR Motor.

5. Hold the CR Unit and the CR guide frame assy, and remove the CR guide frame assy (w/ CR Unit) upward. Secure the CR guide frame assy (w/ CR Unit) with screws in the order given in the figure above.

 When applying the Antistatic Cloth (x6), apply them while aligning them with the standard lines.  Align the section A with the outside of the Main Frame Unit as shown above.  Tighten the screws in the order indicated in the figure above.

Front Frame

Star Wheel Assy

When disassembling/reassembling the Star Wheel Assy, take care not to touch the detector on the PIS Sensor.

 Route the PIS FFC through the hole on the Paper Guide Front.  Align the ribs (x2) on the Star Wheel Assy with the holes (x2) on the Main Frame Unit when reassembling the assy.  Tighten the screws in the order indicated in the figure above.

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 44

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

C.B.P-TITE SCREW 3x10 F/ZN-3C (6±1 kgf·cm)

Rear

Main Frame Unit

Right

Left

Dowel and positioning hole

C.B.P-TITE(P4) SCREW 3x8 F/ZN-3C (6±1 kgf·cm) C.B.S-TITE SCREW 3x6 F/ZN-3C (8±1 kgf·cm)

Frame base 1st

MAC address label

C.C SCREW 3x5 F/ZN-3C (8±1 kgf·cm)

Hook

PF timing belt

PF pulley

EJ pulley

Pinion gear of PF motor

Hook of PF motor plate

Hook of Main Frame Unit

Extension spring 7.6

PF tension plate

Step 2

PF Motor Plate

PF motor plate

Right

Left

Frame Base 2nd Assy

C.B.P-TITE SCREW 3x10 F/ZN-3C (6±1 kgf·cm)

Frame base 1st assy

C.B.S-TITE SCREW 2.6x6 F/ZN-3C (4±1 kgf·cm)

PF scale

PF roller

PF Encoder

Sensor

PF scale

PF roller

PF Encoder Sensor

Hook

C.B.P- TITE SCREW 3X10, F/ZN-3C (6±1 kgf·cm)

USB Cover

Main Frame Unit

When handling the MAC address label, take care not to damage or contaminate it.

When replacing the Printer Mechanism, remove the MAC address label from the old Printer Mechanism and transfer the label on to the new Printer Mechanism.

 Align the positioning holes (x6) on the Main Frame Unit with the dowels (x6) on the Frame base 1st when reassembling the unit.  Align the phases of the APG Unit and APG Driven Shaft. (p 43)  Tighten the screws in the order indicated in the figure above.

PF Motor/PF timing belt

To prevent improper tension applied to the PF Timing Belt, do not hold the PF Motor, PF Tension Plate or PF Motor Plate when tightening the screws of the PF Motor.

When installing the PF Timing Belt, follow the procedure below.

1. Loosen the screws (x2) of the PF Motor slightly.

2. Rotate the PF Motor Plate in the direction of the arrow as far as it will go, and attach the PF Timing Belt in the order of the PF Pulley, EJ Pulley, and the pinion gear of the PF Motor.

3. Attach the Extension Spring 7.6 in the order of the hook of the PF Tension Plate and the hook of the PF Motor Plate.

4. Tighten the screws (x2) in the order shown above to secure the PF Motor Plate.

Frame Base 2nd Assy (WF-7620/7110 Series)

PF Encoder Sensor

USB Cover (WF-7110 Series)

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 45

 Route the ASF Motor cable, ASF Motor Encoder FFC, Frame Base 2nd Paper Stopper Sensor cable, and grounding wire through the hold on the

 Tighten the screws in the order indicated in the figure above.

Frame Base 1st Assy.



Install the sensor while taking care not to let it touch the PF Scale.

 After installing the PF Encoder Sensor, rotate the PF roller to

rotate the PF Scale once and make sure the PF Encoder Sensor is not in contact with the PF scale.

Be careful not to damage the hooks (x6) that secure the USB Cover.

When removing the USB Cover, remove the screw shown above and slide the cover in the direction of the arrow to remove it.

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Bottom

Panel Unit

C.B.P-TITE SCREW 3x10 F/ZN-3C (6±1 kgf·cm)

Rear of Panel Unit

Rear

Hook A Hook B Dowel

and Hole

Housing Upper Assy

Panel Unit (WF-7110 Series)

Remove the Panel Unit as follows.

1. Remove the screws (x3) that secure the Panel Unit.

2. Disengage the holes (x3) on the Panel Unit from the dowels (x3) on the Housing Upper Assy.

3. Press the hook A on the rear of the Panel Unit in the direction of the arrow to release the hook.

4. Release the hook B (x6) on the bottom of the Panel Unit, and disconnect the Panel FFC from the connector on the Panel Unit, then remove the Panel Unit.

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 46

Confidential

Epson WF-7620/7610/7110 Series Revision B

ADF Frame Base

Through cutout Through cutoutUnder ribs

ADF plunger cable

ADF Motor Unit

Paper Support Encoder Sensor cable

Cable guide

Paper Support Encoder Sensor cable Sect ion A

ADF Paper Support Assy

Scanner Motor cable

Hole A

Hole B

Double-sided

tape

Before Scanner FFC Cover is

installed

Scanner FFC Cover

Hole 1

Hole 2

Scanner Grounding

Wire

Scanner Unit's bottom

Scanner FFC Cover

Step1,2

Hole of Scanner

Housing Lower

Rib A

Double-sided tape

Wall of Scanner

Housing Lower

Standard line

Scanner FFC

CIS Module

Double-sided tape

Step3

Scanner FFC

Connector

Rib B Guide Rib

Step5

Scanner FFC

Scanner Housing Lower

Scanner Carriage

Scanner

Motor

cable

Scanner

Motor

Assy

Hole of Scanner

Housing Lower

Hook Rib Groove

After Scanner Motor Assy is

installed

Hook Rib

Before Scanner M otor Assy is

installed

Groove

Scanner Grounding Wire

Hole of Scanner

Housing Lower

Duplex Unit Cover Open Sensor cable

Frame Base 1st

Main Board

Hook Rib Groove

2.4 Routing FFCs/cables

ADF Motor Unit (WF-7620/WF-7610 Series)

Route the Paper Support Encoder Sensor cable and ADF plunger cable on the ADF Frame Base as shown above.

ADF Paper Support Assy (WF-7620/WF-7610 Series)

Route the Paper Support Encoder Sensor cable through the cable guides (x2) and the section A on the ADF Paper Support Assy.

Scanner FFC Cover (WF-7620/WF-7610 Series)

Route the cables on the bottom of the Scanner Unit as follows.

1. Pull out the Scanner FFC from the hole A on the Scanner Housing Lower and secure it as shown above with double-sided tape.

2. Pull out the Scanner Motor cable and Scanner Grounding Wire from the hole B on the Scanner Housing Lower.

3. Insert the Scanner FFC into the hole (1) on the Scanner FFC Cover, and insert the Scanner Motor cable and Scanner Grounding Wire into the hole (2).

4. Attach the Scanner FFC Cover on the Scanner Housing Lower. (p 40)

Scanner FFC (WF-7620/WF-7610 Series)

When routing the Scanner FFC, follow the procedure below.

1. Fold the Scanner FFC along the fold lines and route the FFC through the rib A and along the standard line so as not to let the FFC touch the wall of the

2. Secure the Scanner FFC on the position shown above on the Scanner Housing Lower with double-sided tape (x4).

3. Connect the Scanner FFC to the connector on the CIS Module, and secure the Scanner FFC on the position shown above on the CIS Module with double-

4. Install the CIS Module to the Scanner Carriage.

5. Route the Scanner FFC under the rib B (x2) of the Scanner Carriage, and confirm the FFC does not come over the guide ribs (x2) of the Scanner Carriage.

Disassembly/Reassembly Routing FFCs/cables 47

Scanner Housing Lower, and then insert the FFC into the hole of the Scanner Housing Lower.

sided tape.

Scanner Motor Assy (WF-7620/WF-7610 Series)

 When routing Scanner Motor cable and scanner grounding wire, follow

the procedure below.

1. 1. Route the Scanner Grounding Wire through the hooks and ribs, and insert it into the hole of the Scanner Housing Lower.

2. 2. Install the Scanner Motor Assy. (p 40)

3. 3. Route the Scanner Motor cable through the hooks and ribs, and insert it into the hole of the Scanner Housing Lower.

 After inserting the Scanner Motor cable and scanner grounding wire into

the hole of the Scanner Housing Lower, confirm the Scanner Motor cable is over the scanner grounding wire.

Housing Upper Assy

Route the Duplex Unit Cover Open Sensor cable through the hooks (x2) on the Frame Base 1st and through the ribs (x2) and inside the groove, then connect it on the connector (CN60) on the Main Board.

Confidential

Epson WF-7620/7610/7110 Series Revision B

Hole A

Hole B

Housing Upper

Upper:

Before ADF/Scanner Unit is

installed

Frame Base 1st

Space between Housing Upper and Main Board

Ferrite core A

Slit

Ferrite core B

Hook A

Rib A

Double-sided tape

C.B.S-TITE SCREW 3x6 F/ZN-3C (6±1 kgf·cm)

Rib B

メイン基板

Scanner FFC

Grounding

Wire

Ferrite core CRib D

Hook B

Rib C Rib D

•ADF motor cable

•ADF PE sensor cable

•ADF plunger cable

•Scanner Open Sensor cable

•Scanner Motor cable

•ADF document sensor cable

•ADF encoder sensor cable

•Paper Support Encoder Sensor cable

Rear

Align with standard line

and secure with tape.

Hole

Panel FFC

C.B.S-TITE SCREW 3x6 F/ZN-3C (8±1 kgf·cm)

Cover Open Sensor cable

Double-sided tape

Standard line

Housing Front Assy

Panel Grounding Wire

Panel FFC

Ferrite core

Wrap three times.

Main Board Unit

Hole

Panel Unit's bottom

Double-sided tape

Speaker cable

Relay cable

Panel Board

Panel Grounding Wire

Panel FFC

Ferrite core

C.B.P-TITE SCREW 3x10 F/ZN-3C (6±1 kgf·cm)

Main BoardFerrite core

FAX FFC

FAX Unit

Double-sided tape

Inside the USB Cover (ADF Unit/Cables related to Scanner Unit (WF-7620/WF-7610 Series)

Housing Front Assy (WF-7620/WF-7610 Series)

Route the cables and FFC to the Housing Front Assy as follows.  Panel Grounding Wire

Wrap it around the point shown above three times and route it along the shape of Housing Front Assy, then secure it on the Main Board Unit with the screw.

 Cover Open Sensor cable

Route it along the shape of Housing Front Assy, then connect it to the connector (CN53) on the Main Board Unit.

 Panel FFC

Route it along the rear of the Housing Front Assy and pull it out from the hole, then secure the FFC and the ferrite core to the position shown above with double-sided tape.

Panel Unit's bottom(WF-7620/WF-7610 Series)

 For the correspondence between the cables, FFCs and the connectors on the Main Board, see "Main Board Unit (2) (p49)".  When routing the Scanner motor cable (CN32), ADF document sensor cable (CN72), ADF encoder sensor cable (CN73), Paper Support Encoder Sensor

cable (CN76), follow the procedure below.

• Insert the cables from the hole A on the Housing Upper and route them through the hook B, rib A (x2), and rib B (x3) on the Frame Base 1st, then route them inside the rib C and connect them to their connectors on the Main Board.

• Set the ferrite core A of the Scanner Motor cable as shown above.

 Route the ADF motor cable (CN33), ADF PE sensor cable (CN71), ADF Plunger cable (CN77), and Scanner Open Sensor cable (CN74) as shown below.

• Insert the cables from the hole A on the Housing Upper and route them through the hook A and the slit on the Frame Base 1st, then connect them to their connectors on the Main Board.

• Set the ferrite core B of the ADF Motor cable as shown above.

 Insert the Grounding Wires (x3) from the hole A on the Housing Upper, and secure them at the position shown above with the screw.  Route the Scanner FFC as follows.

1. Insert it into the hole B of the Housing Upper, and route under the rib D of the Housing Upper.

1. Thread the Scanner FFC through the ferrite core C, and secure the ferrite core C to the position shown above with double-sided tape.

2. Secure the Scanner FFC on the position shown above with double-side tape, and then connect the FFC to the connector (CN70) on the Main Board.

 Put the excess portion of the cables after routing into the space between the Housing Upper and Main Board.

Disassembly/Reassembly Routing FFCs/cables 48

Route the cables and FFCs on the bottom of the Panel Unit as follows.  Panel Grounding Wire

Secure on the Panel Board with the screw.

 Speaker Cable

Connect to the Relay cable.

 Panel FFC

Set the ferrite cores (x2) in the positi ons sh own abo ve a nd secure th e FF C with double-sided tape, then connect it to the connector (CN20) on the Panel Board.

 Secure the ferrite core to the position shown above with double-sided tape.  Thread the FAX FFC through the ferrite core and route it according to its

folds and connect it to the connector (CN5) on the Main Board, then secure it to the position shown above with double-sided tape (x2).

FAX Unit (WF-7620/WF-7610 Series)

Confidential

Epson WF-7620/7610/7110 Series Revision B

CN501

CN7

CN45

CN51

CN52

CN30

CN34 CN55CN56

Grounding Wire A/B

Frame Base 1st

Rear

CN41

CN42

CN43

CN35

Only WF-7620/WF-7610 Series

CN54

CN57

Wall of Frame Base 1st:

Put the excess portion of

cables inside this wall.

CN59CN44

Main Board Unit

Rib A Rib B Rib C Rib D Hook Groove

C.B.S-TITE SCREW 3x6 F/ZN-3C (8±1 kgf·cm)

CN5

CN44

CN60

CN71

CN59

CN70

CN501 CN34

CN73

CN74

CN51

CN35

CN54

CN31 CN30

CN76

CN32

CN52

CN72 CN33

CN57

CN56 CN55

CN45

CN9

CN21 CN53

CN#

名称

CN#

名称

CN5 FAX FFC*

CN56 ASF PE Sensor cable*

CN9

Wireless LAN Module cable

CN57

Frame Base 2nd Assy Paper Stopper sensor cable*

CN20 Panel FFC CN30 CR Motor cable CN59 APG Sensor cable CN31 PF Motor cable CN60 Duplex Unit Cover Open

Sensor cable

CN32 Scanner Motor cable*

CN33 ADF motor cable*

CN70 Scanner FFC*

CN34 APG motor cable CN71 ADF PE Sensor cable*

CN35 ASF motor cable*

CN72 ADF document sensor

cable*

CN41 Head FFC CN42 Head FFC CN73 ADF encoder sensor

cable*

CN43 Head FFC CN44 Relay Board FFC CN74

Scanner Open Sensor cable*

CN45 PIS FFC CN51 PF Encoder Sensor FFC CN76 Paper Support Encoder

Sensor cable*

CN52 PE Sensor cable CN53 Cover Open Sensor cable CN77 ADF plunger cable*

CN54

ASF Encoder Sensor FFC*2CN501

Power Supply Unit cable

CN55

Paper Stopper sensor cable

Note "*1": Only WF-7620/WF-7610 Series

"*2": Only WF-7620/WF-7110 Series

CN42

CN43

CN41

Rear

Step2,3

Relay Board FFC Guide

Waste Ink Tray Cover

Step1

Waste Ink Tray Holder

Relay Board FFC Assy

Relay Board FFC

Step4

Hook

Standard line

Rib

Double-sided tape

Main Frame Unit

Main Board Unit (1)

Main Board Unit (2)

Relay Board FFC

The correspondence between Main Board and cables/FFCs is given above.

 Route the following cables as follows.

(For the correspondence between the cables, FFCs and the connectors on the Main Board, see"Main Board Unit (2) (p49)".

• Power Supply Unit cable (CN501): Connect to their connectors on the Main Board. PF Motor cable (CN7) APG Sensor cable(CN59) Relay Board FFC (CN44) PIS FFC (CN45) Head FFC (CN41, 42, 43)

• PE Encoder Sensor FFC (CN51): Pull out from the backside of the Main Board Unit and route according to its folds, then connect to the

• PE sensor cable(CN52): Set the ferrite core into the space shown above, and route through the groove, rib C, and rib D (x4) on

• CR Motor cable(CN30): APG Motor cable(CN34)

• Paper Stopper Sensor cable(CN55): Route through the rib A (x2), rib C, and rib D (x4) on the Frame Base 1st, then connect to the ASF PE Sensor cable(CN56) connector on the Main Board.

• Grounding Wire A: Route through the rib A (x2), hooks (x3), rib B (x3) on the Frame Base 1st, and secure to the position

 For WF-7620/WF-7110 Series, route the FFC and cables from the Frame Base 2nd Assy as follows.

•

Frame Base 2nd Assy Pap er Stopper sensor cable(CN57): ASF Motor cable (CN35) ASF Encoder Sensor FFC (CN54)

• Grounding Wire B: Ro ute inside the rib C on the Frame Base 1st, and secure together with the grounding wire A to the

Disassembly/Reassembly Routing FFCs/cables 49

connector on the Main Board.

the Frame Base 1st, then connect to the connector on the Main Board. Route through the rib B (x3) and rib C on the Frame Base 1st, then connect to the connector on the Main

Board.

shown above with the screw.

Connect to their connectors on the Main Board.

position shown above with the screw.

Route the Relay Board FFC as follows.

1. Connect the FFC to the connector (CN2) on the Relay Board Assy and route it through the hook, then secure it to the position shown above with doublesided tape.

2. Attach the Waste Ink Tray Cover, and pull out the FFC from the inside of the rib on the Waste Ink Tray Cover.

3. Attach the Relay Board FFC Guide, and route the FFC through the ribs (x4) on the guide and secure the FFC to the position on the guide shown above with double-sided tape (x2).

4. Route the FFC along the standard line on the Main Frame Unit, and secure the FFC to the position on the Main Frame Unit shown above with double-sided tape (x3).

Confidential

Epson WF-7620/7610/7110 Series Revision B

Front Frame

Hook

Double-sided tape

Rib

Front

Ferrite core

FFC Holder

Fold rib inward into hole on Front Frame.

FFC Holder

Head FFC

PIS FFC

Rib

Acetate TapeFrame Base 1st

PF Motor cable

Ferrite coreFrame Base 1st

PF Motor

Rib

Rib Hook

Double-sided tape

Frame Base 2nd Assy

Paper Stopper sensor cable

Grounding Wire A

Top of Frame Base 2nd Assy: Before ASF Motor Assy is installed

Fig. 1

Hole of Frame Base 2nd Assy

Frame Base 2nd Assy

Paper Stopper sensor cable

ASF Encoder FFC

Fig. 3

• Frame Base 2nd Assy Paper

Stopper sensor cable

•ASF Motor cable

•Grounding Wire B

Hole of Frame Base 2nd Assy

Groove

Top of Frame Base 2nd Assy: After ASF Motor Assy is installed

Fig. 2

ASF Encoder FFC

Ferrite core

ASF Motor Assy

ASF Motor Cable

Grounding Wire B

Grounding Wire A

Fig. 4

ASF Encoder FFC

ASF Motor cable

Grounding Wire B

C.B.S-TITE SCREW 3x6 F/ZN-3C (6±1 kgf·cm)

Head FFC

Frame Base 2nd Assy (WF-7620/WF-7110 Series)

 Route the FFC through the hooks (x4) on the Front Frame.  Insert the ferrite core into the position shown above and secure it with double-sided tape.  Attach the FFC Holder and secure the FFC with the holder.

PIS FFC

PF Motor

Route the cables to the Frame Base 2nd Assy as shown below.

1. Pull out the Frame Base 2nd Assy Paper Stopper sensor cable and grounding wire A from the hole on the Frame Base 2nd Assy, and route the cables through the ribs and hooks on the Frame Base 2nd Assy. (See Fig. 1.)

2. Install the ASF Motor Assy and wrap the ASF Motor cable around the hook on the Frame Base 2nd Assy once, then insert the ferrite core into the position shown above. (See Fig. 2.)

3. Secure the grounding wire A to the ASF Motor Assy with the screw, and route the grounding wire B through the ribs and hooks on the Frame Base 2nd Assy. (See Fig. 2.)

4. Secure the ASF Encoder FFC to the position shown above with double-sided tape. (See Fig. 2.)

5. Route the Frame Base 2nd Assy Paper Stopper sensor cable, ASF Motor cable and grounding wire B through the grooves (x3) and hole on the Frame Base 2nd Assy. (See Fig. 3.)

Route the FFC through the ribs (x4) on the Frame Base 1st and secure it to the position shown above with acetate tape.

Disassembly/Reassembly Routing FFCs/cables 50

Insert the ferrite core into the position shown above, and route the PF Motor cable through the ribs (x7) on the Frame Base 1st.

6. Route the ASF Encoder FFC through the ribs (x3) and the groove on the Frame Base 2nd Assy, and secure it to the position shown above with double-sided tape. (See Fig. 4.)

Confidential

Epson WF-7620/7610/7110 Series Revision B

Main Frame Unit

Hook Dowel

PE Sensor Cable

Frame Base 1st

PE Sensor

Main Frame Unit's bottom

PE Sensor cable

Hook

CR Motor cable

Ferrite core

130-digit side

0-digit side

CR Motor

Ferrite core

Ferrite core Holder

Housing Upper Assy

Cover Open Sensor cable

Hole

Panel FFC

Rib

Double-

sided tape

Ferrite core

Ferrite core Holder

PE Sensor

CR Motor

Scanner Housing Upper Assy (WF-7110 Series)

Route the PE Sensor cable as follows.

1. Route through the hooks (x3) on the Main Frame Unit.

2. Route through the hooks (x2) and dowel on the Frame Base 1st, and install the Main Frame Unit to the Frame Base 1st. (p 45)

 Insert the ferrite core into the position shown above.  Route the CR Motor cable through the hooks (x8) shown above.

 Pull out the Cover Open Sensor cable from the hole on the Housing Upper

Assy, and route it through the rib.

 Thread the Panel FFC through the ferrite core holder and ferrite cores (x2)

when routing the FFC.

 Secure the ferrite core to the position shown above with double-sided tape.

Disassembly/Reassembly Routing FFCs/cables 51

Confidential

CHAPTER 3

ADJUSTMENT

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

3.1 Required Adjustments

The table from the following page lists the required adjustments depending upon the parts being repaired or replaced. Find the part(s) you removed or replaced, and check which adjustment(s) must be carried out.

 After all required adjustments are completed, use the “Final check pattern print”

function to print all adjustment patterns for final check. If you find a problem with the printout patterns, carry out the adjustment again.

 When replacing the Main Board and the Printer Mechanism at the same time, the

adjustment should be made after performing the initial setting.

 The table items and marks used in the “Required Adjustment List” provided on the

following pages have the following meanings.

• “---” indicates that the adjustment is not required.

• The “Mechanism Adjustment” should be performed just after reinstalling or reassembling the part or unit.

• The “Adjustments using the Adjustment Program” need to be performed after reassembling the printer completely.

 If you have removed or replaced multiple parts, make sure to check the required

adjustments for the all parts. And when multiple adjustments must be carried out, be sure to carry out them in the order given in the “Priority” row.

Adjustment Required Adjustments 53

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Table 3-1. Required Adjustment List (Mechanism adjustment)

Adjustment Type Mechanism adjustment

Priority 1 2 3 4

Adjustment Item PG Adjustment

Cassette Assy 1st

Cassette Assy 2nd

Duplex Unit Cover Assy

Duplex Unit

Panel Unit

ADF Unit

ADF Motor Unit

Part Name

Scanner Unit

Scanner Motor Assy

Main Board Unit

Main Board

PS Unit

Printout pattern How to judge Adjustment program Tool

Purpose

Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace

(EEPROM Read OK) Replace

(EEPROM Read NG) Remove Replace

(EEPROM Read OK) Replace

(EEPROM Read NG) Remove Replace

CR/PF Timing Belt

Tension

Measurement

Check if the tension of the CR/PF Timing Belt is within the standard.

Touch Panel

Adjustment

This adjustment is made to adjust the relative positions between the Touch Panel detection points and displaying positions on the Control Panel.

Adjusts the PG to within the standard.

Checking the

Platen Gap

Checks if the PG is within the standard.

--- --- --- ---

--- --- --- O

--- --- --- ---

--- --- --- O

--- --- --- ---

--- --- --- O

--- --- --- ---

O --- --- ---

Thickness gauges Thickness gauges Sonic tension gauge ---

Adjustment Required Adjustments 54

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Table 3-1. Required Adjustment List (Mechanism adjustment)

Adjustment Type Mechanism adjustment

Priority 1 2 3 4

Adjustment Item PG Adjustment

Print head

CR Driven Pulley Assy

Paper Guide Upper Assy

CR Guide Frame Assy (w/CR Unit)

Front Frame

Star Wheel Assy

Frame Base 2nd Assy

Part Name

Main Frame Unit

PF Motor

CR Motor

PE Lever Assy

PE Sensor

Paper Guide Lower Porous Pad

APG Unit

Printout pattern How to judge Adjustment program Tool

Purpose

Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace

CR/PF Timing Belt

Tension

Measurement

Check if the tension of the CR/PF Timing Belt is within the standard.

Touch Panel

Adjustment

This adjustment is made to adjust the relative positions between the Touch Panel detection points and displaying positions on the Control Panel.

Adjusts the PG to within the standard.

Checking the

Platen Gap

Checks if the PG is within the standard.

--- O --- --O O --- ---

--- --- O ---

--- --- --- ---

--- --- --- --OOO--OOO---

--- --- --- ---

--- O O --OOO---

--- --- --- ---

O --- --- ---

Thickness gauges Thickness gauges Sonic tension gauge ---

Adjustment Required Adjustments 55

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

OK NGNG

-2

-1

0 1 2

NGOK

Table 3-2. Required Adjustment List 1 (Adjustment using the Adjustment Program)

Adjustment Type Adjustment using the Adjustment Program

Priority 1 2 3 4 5 6 7 8 9 10 11 12

First dot position / PW adjustment Bi-D adjustment Cassette Assy

1st

To correct the paper detection positions and the mounting positions of the PW Sensor by software control

Cassette Assy

2nd *

PG1 PG2

To correct print start timing in bidirectional printing through software control

Head angular

adjustment

To correct tilt of the Printhead caused at the installation through software control

PF band

adjustment

To correct variations in paper feed accuracy to achieve higher print quality in band printing

PE adjustment

To correct the paper detection positions and the mounting positions of the PE Sensor by software control

Adjustment Item

Cassette Assy 1st

Cassette Assy 2nd

Duplex Unit Cover Assy

Duplex Unit

Panel Unit

Part Name

ADF Unit

ADF Motor Unit

Scanner Unit

Scanner Motor Assy

Purpose

Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace

EEPROM

data copy

To copy adjustment values or the like stored on the old Main Board to the new board when the Main Board needs to be replaced

Initialize Setting

(MAC address

setting)

To write saledestination-specific settings and the serial number into the Main Board after replacing it

Ink charge Head ID input

To fill ink inside the new Printhead to make it ready for print after replacing the Printhead

To correct characteristic variation of the replaced Printhead by entering its Printhead ID (Head ID)

Maintenance

counter

To reset the waste ink counter of the Paper Guide Lower Porous Pad and check the counter of the Maintenance Box

PE Detector

confirmation

Confirm the PE sensor's chattering after detecting the end of the paper falls within the specified period

PF/EJ adjustment

To correct variations in paper feed accuracy to achieve higher print quality

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- O --- --- --- --- --- O

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- O --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- O O O --- --- --- O O

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- O O O --- --- --- O O

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

Printout pattern

How to judge

Adjustment program Tool

Note "*":Only 1st dot position adjustment

--- --- --- --- --- --- ---

Examine the printout patterns and enter the value for the pattern with no

--- --- --- --- --- ---

overlap and gap between the two rectangles.

PW Adjustment

Examine the misaligned lines printed on top, bottom, left, and right of the paper, and enter the number beside the line that is exactly 5 mm away from the paper edge for each side.

1st dot adjustment

Examine the lines on the left side of paper, and enter the number beside the line that overlaps with the horizontal line.

-2 -1 0 1 2

-2

-1

0 1 2

-2 -1 0 1 2

-2

-1

0 1 2

Examine the printout patterns for each of the four modes, and enter the value for the pattern with no gap and overlap for each mode.

Band pattern

Enter the values of the most straight lines.

Microweave

pattern

Enter the value for

Examine the printout patterns and enter the value for the pattern with no overlap and gap between the two rectangles.

---

the group of which the gaps between the two color bars are the smallest.

OOOOOOOOO O OOO

--- --- --- --- --- --- --- Ruler --- --- --- ---

Adjustment Required Adjustments 56

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

OK NGNG

-2

-1

0 1 2

NGOK

Table 3-2. Required Adjustment List 1 (Adjustment using the Adjustment Program)

Adjustment Type Adjustment using the Adjustment Program

Priority 1 2 3 4 5 6 7 8 9 10 11 12

First dot position / PW adjustment Bi-D adjustment Cassette Assy

1st

To correct the paper detection positions and the mounting positions of the PW Sensor by software control

Cassette Assy

2nd *

PG1 PG2

To correct print start timing in bidirectional printing through software control

Head angular

adjustment

To correct tilt of the Printhead caused at the installation through software control

PF band

adjustment

To correct variations in paper feed accuracy to achieve higher print quality in band printing

PE adjustment

To correct the paper detection positions and the mounting positions of the PE Sensor by software control

Adjustment Item

Main Board Unit

Main Board

PS Unit

Part Name

Printhead

CR Driven Pulley Assy

Paper Guide Upper Assy

CR Guide Frame Ass y (w/CR Unit)

Front Frame

Purpose

Remove Replace

(EEPROM Read OK)

Replace (EEPROM Read NG)

Remove Replace

(EEPROM Read OK)

Replace

(EEPROM Read NG)

Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace

EEPROM

data copy

To copy adjustment values or the like stored on the old Main Board to the new board when the Main Board needs to be replaced

Initialize Setting

(MAC address

setting)

To write saledestination-specific settings and the serial number into the Main Board after replacing it

Ink charge Head ID input

To fill ink inside the new Printhead to make it ready for print after replacing the Printhead

To correct characteristic variation of the replaced Printhead by entering its Printhead ID (Head ID)

Maintenance

counter

To reset the waste ink counter of the Paper Guide Lower Porous Pad and check the counter of the Maintenance Box

PE Detector

confirmation

Confirm the PE sensor's chattering after detecting the end of the paper falls within the specified period

PF/EJ adjustment

To correct variations in paper feed accuracy to achieve higher print quality

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

O --- --- --- --- --- --- --- --- --- --- --- --- ---

---O---OO---OOOOOOOO

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

O --- --- --- --- --- --- --- --- --- --- --- --- ---

---O---OO---OOOOOOOO

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --- O O O --- ---

------OO------OOOOOOOO

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- O --- --- O O O O ---

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

---------------------OOOOO---O

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- O --- O O O --- O

Printout pattern

How to judge

Adjustment program Tool

Note "*":Only 1st dot position adjustment

--- --- --- --- --- --- ---

Examine the printout patterns and enter the value for the pattern with no

--- --- --- --- --- ---

overlap and gap between the two rectangles.

PW Adjustment

Examine the misaligned lines printed on top, bottom, left, and right of the paper, and enter the number beside the line that is exactly 5 mm away from the paper edge for each side.

1st dot adjustment

Examine the lines on the left side of paper, and enter the number beside the line that overlaps with the horizontal line.

-2 -1 0 1 2

-2

-1

0 1 2

-2 -1 0 1 2

-2

-1

0 1 2

Examine the printout patterns for each of the four modes, and enter the value for the pattern with no gap and overlap for each mode.

Band pattern

Enter the values of the most straight lines.

Microweave

pattern

Enter the value for

Examine the printout patterns and enter the value for the pattern with no overlap and gap between the two rectangles.

---

the group of which the gaps between the two color bars are the smallest.

OOOOOOOOO O OOO

--- --- --- --- --- --- --- Ruler --- --- --- ---

Adjustment Required Adjustments 57

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

OK NGNG

-2

-1

0 1 2

NGOK

Table 3-2. Required Adjustment List 1 (Adjustment using the Adjustment Program)

Adjustment Type Adjustment using the Adjustment Program

Priority 1 2 3 4 5 6 7 8 9 10 11 12

First dot position / PW adjustment Bi-D adjustment Cassette Assy

1st

To correct the paper detection positions and the mounting positions of the PW Sensor by software control

Cassette Assy

2nd *

PG1 PG2

To correct print start timing in bidirectional printing through software control

Head angular

adjustment

To correct tilt of the Printhead caused at the installation through software control

PF band

adjustment

To correct variations in paper feed accuracy to achieve higher print quality in band printing

PE adjustment

To correct the paper detection positions and the mounting positions of the PE Sensor by software control

Adjustment Item

Purpose

Star Wheel Assy

Frame Base 2nd Assy

Main Frame Unit

PF Motor

CR Motor

Part Name

PE Lever Assy

PE Sensor

Paper Guide Lower Porous Pad

APG Unit

Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace

EEPROM

data copy

To copy adjustment values or the like stored on the old Main Board to the new board when the Main Board needs to be replaced

Initialize Setting

(MAC address

setting)

To write saledestination-specific settings and the serial number into the Main Board after replacing it

Ink charge Head ID input

To fill ink inside the new Printhead to make it ready for print after replacing the Printhead

To correct characteristic variation of the replaced Printhead by entering its Printhead ID (Head ID)

Maintenance

counter

To reset the waste ink counter of the Paper Guide Lower Porous Pad and check the counter of the Maintenance Box

PE Detector

confirmation

Confirm the PE sensor's chattering after detecting the end of the paper falls within the specified period

PF/EJ adjustment

To correct variations in paper feed accuracy to achieve higher print quality

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- O --- --- --- --- --- O ---

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- O --- O --- --- O --- O

--- --- --- --- --- O --- O O --- --- --- --- O

---------------OOOOOOOOO

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

---------------OOOOOOOOO

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- O --- --- --- --- --- --- --- O

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- O --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- ---

Printout pattern

How to judge

Adjustment program Tool

Note "*":Only 1st dot position adjustment

--- --- --- --- --- --- ---

Examine the printout patterns and enter the value for the pattern with no

--- --- --- --- --- ---

overlap and gap between the two rectangles.

PW Adjustment

Examine the misaligned lines printed on top, bottom, left, and right of the paper, and enter the number beside the line that is exactly 5 mm away from the paper edge for each side.

1st dot adjustment

Examine the lines on the left side of paper, and enter the number beside the line that overlaps with the horizontal line.

-2 -1 0 1 2

-2

-1

0 1 2

-2 -1 0 1 2

-2

-1

0 1 2

Examine the printout patterns for each of the four modes, and enter the value for the pattern with no gap and overlap for each mode.

Band pattern

Enter the values of the most straight lines.

Microweave

pattern

Enter the value for

Examine the printout patterns and enter the value for the pattern with no overlap and gap between the two rectangles.

---

the group of which the gaps between the two color bars are the smallest.

OOOOOOOOO O OOO

--- --- --- --- --- --- --- Ruler --- --- --- ---

Adjustment Required Adjustments 58

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Table 3-3. Required Adjustment List 2 (Adjustment using the Adjustment Program)

Adjustment Type Adjustment using the Adjustment Program

Priority 13 14 15 16 17 18 19 20 21

Adjustment Item

Cassette Assy 1st

Cassette Assy 2nd

Duplex Unit Cover Assy

Duplex Unit

Panel Unit

ADF Unit

ADF Motor Unit

Scanner Unit

Part Name

Scanner Motor Assy

Main Board Unit

Main Board

Purpose

Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace Remove Replace

(EEPROM Read OK)

Replace (EEPROM Read NG)

Remove Replace

(EEPROM Read OK)

Replace (EEPROM Read NG)

Paper skew adjustment

To align print start position at 0digit side with that at 80-digit side in bidirectional band printing, timing of firing ink droplet is adjusted through software control

--- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- O ---

--- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- O ---

--- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- O --- ---

--- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- O --- ---

--- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- O

OOOOOOOOO

--- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- O

OOOOOOOOO

To reset the counter or set it to its maximum according to the replaced parts

PF / EJ

deterioration offset

PW Detector light quantity

adjustment

To correct the light quantity variations depending on the factor such as sensor characteristics or installation posture

CR motor heat protection

control

To measure and correct the electrical variation of each motor and the power supply board. (For Scanner motor and ADF motor, re-measurement preparation) To check the light correction

PF motor heat protection

control

ASF motor heat protection

control

Scanner motor heat protection control

ADF motor heat protection

control

PIS board check

value (Duty) to check the time to replace the PIS

Printout pattern

How to judge

Adjustment program Tool

Note "*1": WF-7620/7110 Series only

"*2": WF-7620/7610 Series only

OK NGNG

Examine the printout pattern and enter the number of the one

with the least gap and overlap between the two different

colored lines.

OOOOOOOOO

--- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- ---

Adjustment Required Adjustments 59

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Table 3-3. Required Adjustment List 2 (Adjustment using the Adjustment Program)

Adjustment Type Adjustment using the Adjustment Program

Priority 13 14 15 16 17 18 19 20 21

Adjustment Item

Purpose

PS Unit

Printhead

CR Driven Pulley Assy

Paper Guide Upper Assy

CR Guide Frame Assy (w/CR Unit)

Front Frame

Star Wheel Assy

Frame Base 2nd Assy

Part Name

Main Frame Unit

PF Motor

CR Motor

PE Lever Assy

PE Sensor

Paper Guide Lower Porous Pad

APG Unit

Part Name

Replace

Paper skew adjustment

To align print start position at 0digit side with that at 80-digit side in bidirectional band printing, timing of firing ink droplet is adjusted through software control

--- --- --- --- --- --- --- --- ---

--- --- --- O O O O O ---

--- --- --- --- --- --- --- --- --O --- --- --- --- --- --- --- O

--- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --O --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- ---

--- --- --- --- --- O --- --- ---

--- --- --- --- --- --- --- --- --O O O O O --- --- --- ---

--- --- --- --- --- --- --- --- ---

--- --- --- --- O --- --- --- ---

--- --- --- --- --- --- --- --- ---

--- --- --- O --- --- --- --- ---

--- --- --- --- --- --- --- --- --O O --- O O --- --- --- ---

--- --- --- --- --- --- --- --- ---

To reset the counter or set it to its maximum according to the replaced parts

PF / EJ

deterioration offset

PW Detector light quantity

adjustment

To correct the light quantity variations depending on the factor such as sensor characteristics or installation posture

CR motor heat protection

control

To measure and correct the electrical variation of each motor and the power supply board. (For Scanner motor and ADF motor, re-measurement preparation) To check the light correction

PF motor heat protection

control

ASF motor heat protection

control

Scanner motor heat protection control

ADF motor heat protection

control

PIS board check

value (Duty) to check the time to replace the PIS

Printout pattern

How to judge

Adjustment program Tool

Note "*1": WF-7620/7110 Series only

"*2": WF-7620/7610 Series only

OK NGNG

Examine the printout pattern and enter the number of the one

with the least gap and overlap between the two different

colored lines.

OOOOOOOOO

--- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- ---

Adjustment Required Adjustments 60

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

3.2 Details of Adjustments

This section provides adjustment procedures for which explanation in details is necessary. See "3.1 Required

Adjustments (p53)" for the adjustments not explained here.

3.2.1 PF/CR Timing Belt Tension Measurement

This section describes PF/CR Timing Belt tension measurement.

 Tools



Sonic tension gauge

 Plastic tweezers

 Adjustment procedure

When PF/CR Timing Belt tension measurement, make sure of the following.  Bring the microphone of the sonic tension gauge within 5 mm from the PF Timing Belt

but do not let it touch the belt.

 Flip the PF Timing Belt as weak as the sonic tension gauge can measure it.  Be careful not to damage the PF Timing belt when flipping it with the plastic tweezers.

Adjustment Details of Adjustments 61

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Measurement position

PF Timing Belt

Tension: lower

Tension: higher

PF Motor Plate

How to adjust PF Belt Tension

Adjust the tension as shown above if it is out of standard.

Left side

3.2.1.1 PF Timing Belt Tension Measurement

 If you have correctly reassembled the Printer Mechanism, the tension of the PF Timing

Belt falls within the expected range.If the result of measurement of the PF Timing Belt tension explained in this section is out of standard, readjust the tension as instructed below.

 The standard tension range of the PF Timing Belt: 15 ± 2 N

 Measurement procedure

1. Set the following parameters to the sonic tension meter:

Weight: 1.09 g/m

  Width: 3 mm  Span: 73 mm

2. Bring the microphone of the sonic tension meter close to the position shown in Figure 3-1.

3. Press the “MEASURE” button of the sonic tension meter and flip the upper of the PF Timing Belt with plastic tweezers and measure the tension of the belt.

Within the standard range: go to Step 4.

  Out of the standard range: perform the " PF Timing Belt Tension Adjustment (p62)".

4. Rotate the PF Roller Pulley one turn, and measure the tension at the measurement point shown in Figure 3-1.



Within the standard range: go to Step 5.

 Out of the standard range: perform the " PF Timing Belt Tension Adjustment (p62)".

5. Rotate the PF Roller Pulley one turn, and measure the tension at the measurement point shown in Figure 3-1.

Within the standard range: go to Step 6.

  Out of the standard range: perform the " PF Timing Belt Tension Adjustment (p62)".

6. PF Timing Belt tension measurement is complete.

Within 5 mm

Figure 3-1. PF Timing Belt Tension Measurement / Adjustment

 PF Timing Belt Tension Adjustment

1. Loosen the screws (x2) of the PF Motor Plate, and adjust the position referring to Figure 3-1.

2. Tighten the screws of the PF Motor Plate, and measure the tension again.

3. Repeat Step 1 and 2 until the value falls within the standard.

4. Go back to the previous step in the measurement procedure.

Adjustment Details of Adjustments 62

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

CR UnitMeasurement position

CR Timing Belt

3.2.1.2 CR Timing Belt Tension Check

 This printer is designed so that the each tension of the CR Timing Belt fall within the

expected range if you correctly reassemble the unit. However, deformation of any related part(s) can cause improper tension of the belt. In such case, replace the unit with a new/ refurbished one.

 The standard tension range of the CR Timing Belt: 13 ± 2 N

1. Move the CR Unit back and forth between the 0-digit side and 130-digit side three times.

2. Move the CR Unit to the position on the left of the Ink System on the 0-digit side shown in Figure 3-2.

3. Set the following parameters to the sonic tension gauge:

Weight: 9.9 g/m

  Width: 3.25 mm  Span: 460 mm

4. Bring the microphone of the sonic tension meter close to the position shown in Figure 3-2.

5. Press the “MEASURE” button of the sonic tension meter and flip the upper of the CR Timing Belt with plastic tweezers and measure the tension of the belt.



Within the standard range: CR Timing Belt tension measurement is complete.



Out of the standard range: go to Step 6.

6. Measure the belt tension twice in the same way as described in Step 5.

Within the standard range two times in a row



CR Timing Belt tension check is complete.

 Either of the results is out of the standard range

Any of the related parts may be deformed. Replace the Printer Mechanism, and then perform the CR Timing Belt tension Check again.

Within 5 mm

Figure 3-2. CR Timing Belt Tension Check

Adjustment Details of Adjustments 63

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

START

PG adjustment is finished.

Yes

" Preparation (p65)"

" Adjustment of the 0-digit side (p68)"

" Checking the Platen Gap (p70)"

Is PG within standard?

" Adjustment of the 130-digit side (p69)"

" Adjustment of the 0-digit side (p68)"

3.2.2 PG Adjustment

This section describes the procedure for the platen gap (PG) adjustment.

 The standard range of the PG is as follows:

• Standard 0-digit side / 130-digit side: 1.7 ± 0.1 mm Center of the printer: 1.7 ± 0.2 mm

 This adjustment should be carried out with the mechanism in the minimum PG position

(PG1) before installing the CR Scale.

 Tools



Thickness gauge for PG adjustment

1.6 mm

 Thickness gauge for checking the Platen Gap

1.52 mm, 1.72 mm, 1.42 mm, 1.82 mm

 Teflon tape

Commercial item (thickness: 0.08 mm)

3.2.2.1 PG Adjustment procedure

Figure 3-3. PG Adjustment Flow

Adjustment Details of Adjustments 64

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

[Bubbles]

[Foreign material]

Teflon tape

Thickness gauge

3.2.2.2 Preparation

This section describes how and what to prepare for the preparation before starting the PG adjustment.

 Modification of the thickness gauges

 The Printhead of this printer has an integral structure of the Printhead Cover and

Printhead nozzle surface. Therefore, if the thickness gauge touches the nozzle surface in the same way as performed in the traditional procedure, the nozzle surface may be damaged. When performing the PG Adjustment or checking the platen gap, make sure to apply Teflon tape (thickness: 0.08 mm) on all the thickness gauges used for the adjustment or check in advance.

 Use commercially available Teflon tape of 0.08 mm in thickness.  When applying Teflon tape on the thickness gauges, make sure no bubbles or foreign

material remain under the tape.



Application procedure of Teflon tape

1. Clean the surfaces of the thickness gauge using alcohol, and make sure no dirt or contamination remains on the surfaces.

2. Apply Teflon tape on the thickness gauge as shown below.

Figure 3-4. Modification of Thickness Gauge (1)

Adjustment Details of Adjustments 65

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Before trimming

After trimming

Teflon tape

Thickness gauge

Teflon tape

Thickness gauge

Fold the tape at the edges and trim it at the center in the thickness direction.

3. Fold the excess portions of Teflon tape along the edges of the thickness gauge, and trim the portions at about the center in the thickness direction of the sides.

thickness gauge

Figure 3-5. Modification of thickness gauge (2)

When the Teflon tape is trimmed, the Teflon tape can be easily cut ut by guiding the gauge of half thickness.

 Make sure to wear the heavy glove to prevent the cut the hand when the Teflon tape is

cut.

4. Make sure any tears or burrs on the applied Teflon tape, then the modification of thickness gauges is complete.

Adjustment Details of Adjustments 66

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Lever of APG transmission slider

CR Unit

Rear of CR Unit

CR Unit

Rear of CR Unit

APG Lever

Gear of APG unit

CR Guide Frame

Rib

To PG: Max.

To + PG: Min.

Rib

To + PG: Min.

To PG: Max.

PG adj. cam L (130-digit side)

PG adj. cam R (0-digit side)

 APG Position Check

Make sure the APG position is in the [PG1] position.



How to check If it is in the [PG1] position, the lever of the APG transmission slider on the rear of the CR Unit cannot be seen. (See Figure 3-6.)

Figure 3-6. APG Position Check

If the lever is in the NG condition shown in Figure 3-6, set it in the [PG1] position as follows.

1. Move the Carriage Assy to the center of the printer.

2. Rotate the gear on the APG Unit shown in Figure 3-7 in the direction of the arrow until the APG Lever comes out from the hole on the Main Frame.

3. Move the CR Unit to the 130-digit side until it touches the APG Lever.

4. Check the APG transmission slider is in the “OK” status shown in Figure 3-6.

Figure 3-7. APG Lever

 Confirmation of the PG adjustment cam positions

Make sure the center of the notches on the PG adjustment cam on both sides of the printer is set to the rib of the frame.

Figure 3-8. PG Adjustment Cams

Adjustment Details of Adjustments 67

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

130-digit side

0-digit side

Thickness gauge

Center

3.2.2.3 PG adjustment procedure

When performing the PG adjustment, make sure of the following.  Perform the PG adjustment with the new cartridges installed on the CR Unit before

installing the CR Scale.

 Move the CR Unit by pulling the top pf the CR timing belt.  Be careful not to damage the nozzle surface of the Printhead with the thickness gauge.  When make the Printhead touch the thickness gauge, be careful not to let the Printhead

run onto the gauge.

Adjustment of the 0-digit side

1. Loosen the screws (x4) on the CR Guide Frame and the screws (x2) on the PG adjustment cams (L/R) on both sides of the printer. (See " CR Guide Frame Assy (w/CR Unit) (p44)", Figure 3-9.)

2. Move the CR Unit in the middle of the printer, then place the 1.6 mm thickness gauge with Teflon tape applied at the position A shown in Figure 3-9.

Figure 3-9. Placement of the Thickness Gauge

3. Move the CR Unit to the thickness gauge and check if the CR Unit touches the gauge. If it touches the gauge, adjust the PG as follows. If not, go to the next step.

1. Bring the CR Unit back to the middle of the printer, and increment the PG adjustment cam on the 0-digit side by one notch. (See Figure 3-8.)

2. Move the CR Unit to the thickness gauge and check if the CR Unit touches the gauge.

• When the CR Unit does not touch the thickness gauge Tighten the screw on the PG adjustment cam on the 0-digit side and go to " Adjustment of the 130-digit side

(p69)".

• When the CR Unit touches the thickness gauge Go back to Step 3-1 and try again.

4. Adjust the PG as follows.

1. Bring the CR Unit back to the middle of the printer, and increment the PG adjustment cam on the 0-digit side by one notch. (See Figure 3-8.)

2. Move the CR Unit to the thickness gauge and check if the CR Unit touches the gauge.

• When the CR Unit touches the thickness gauge Increment the PG adjustment cam on the 0-digit side by one notch, then tighten the screw on the PG adjustment cam to secure it and go to" Adjustment of the 130-digit side (p69)".

• When the CR Unit does not touch the thickness gauge Go back to Step 4-1 and try again.

Adjustment Details of Adjustments 68

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Adjustment of the 130-digit side

1. Move the CR Unit in the middle of the printer, then place the 1.6 mm thickness gauge with Teflon tape applied at the position B shown in Figure 3-9.

2. Move the CR Unit to the thickness gauge and check if the CR Unit touches the gauge.

3. If the CR Unit touches the gauge, adjust the PG as follows. If not, go to the next step.

1. Bring the CR Unit back to the middle of the printer, and increment the PG adjustment cam on the 130-digit side by one notch. (See Figure 3-8.)

2. Move the CR Unit to the thickness gauge and check if the CR Unit touches the gauge.

• When the CR Unit does not touch the thickness gauge Tighten the screw on the PG adjustment cam on the 130-digit side. Then confirm the PG on the 0-digit side is appropriate by performing " Adjustment of the 0-digit side (p68)" again, then go to "3.2.2.4 Checking the

Platen Gap (p70)".

• When the CR Unit touches the thickness gauge Go back to Step 3-1 and try again.

4. If the CR Unit does not touch the thickness gauge, adjust the PG as follows.

1. Bring the CR Unit back to the middle of the printer, and increment the PG adjustment cam on the 130-digit side by one notch. (See Figure 3-8.)

2. Move the CR Unit to the thickness gauge and check if the CR Unit touches the gauge.

• When the CR Unit touches the thickness gauge Increment the PG adjustment cam on the 130-digit side by one notch and tighten the screw on the PG adjustment cam to secure it. Then confirm the PG on the 0-digit side is appropriate by performing "

Adjustment of the 0-digit side (p68)" again, then go to "3.2.2.4 Checking the Platen Gap (p70)".

• When the CR Unit does not touch the thickness gauge Go back to Step 4-1 and try again.

Adjustment Details of Adjustments 69

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

3.2.2.4 Checking the Platen Gap

Check the platen gap at the three points; on the 0-digit side, on the 130- digit side, and in the middle. The thickness gauges to be used differ according to the points to be checked. Therefore, use an appropriate thickness gauge in the order of checks referring to the table below.

Table 3-4. Thickness gauges to be used and where to check

Order Where to check

1 0-digit side: Position A shown in Figure 3-9. 1.52 mm 1.72 mm Actual thickness after 2 130-digit side: Position B shown in Figure 3-9. 3 In the middle: Position B shown in Figure 3-9. 1.42 mm 1.82 mm

Thickness

gauge 1

Thickness

gauge 2

Remarks

Teflon tape is applied is the values on the left plus

0.08 mm in thickness.

1. Place the thickness gauge 1 on the positions shown in Table 3-4.

2. Move the CR Unit to the thickness gauge and check if the CR Unit touches the gauge.



When the CR Unit touches the thickness gauge Bring the CR Unit back to the middle of the printer, and start from Step 1 of "3.2.2.3 PG adjustment procedure

(p68)" again.

 When the CR Unit does not touch the thickness gauge

Bring the CR Unit back to the middle of the printer and remove the thickness gauge, then go to Step 3.

3. Place the thickness gauge 2 on the positions shown in Table 3-4.

4. Move the CR Unit to the thickness gauge and check if the CR Unit touches the gauge.

 When the CR Unit touches the thickness gauge

Bring the CR Unit back to the middle of the printer and remove the thickness gauge, then go to Step 5.

 When the CR Unit does not touch the thickness gauge

Bring the CR Unit back to the middle of the printer, and start from Step 1 again.

5. When checking the PG at three points is complete, tighten the screws (x5) on the CR Guide Frame and the screw on the CR Scale Holder and CR Spacer to secure them. (See " CR Guide Frame Assy (w/CR Unit)

(p44)".)

6. Remove all ink cartridges, then checking the platen gap is complete.

Adjustment Details of Adjustments 70

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Power

[3]

Moves up menu selection.

[Color]

Enter

[6]

Moves down menu selection.

Run:Color / Select:[3][6]

1.Mechanism Inspection

2.Special Inspection

3.FAX Inspection

4.Touch Screen Inspection

5.Development Mode

6.FAX Development Mode

7.Nomal Mode

3.2.3 Touch Panel Adjustment (WF-7620/7610 Series only)

This section describes the Touch Panel adjustment  Purpose

To adjust the origin of the Touch Panel.

 Tools

Touch pen (without a sharp end such as a plastic stick)

During in the Touch Panel Adjustment mode, operations such as menu selection can be done by pressing the following buttons on the panel.

Figure 3-10. Panel Operation in Touch Panel Adjustment Mode

 Adjustment procedure

1. Start the printer in the Touch Panel Adjustment mode by turning it on with the [HOME] button (1), [*] (2), [Stop] (3), and [Power] button (4) on the panel simultaneously.

Figure 3-11. Touch Panel Adjustment (1)

2. On the displayed menu screen, select “4. Touch Screen Inspection” and press the [Color] button.

Adjustment Details of Adjustments 71

Figure 3-12. Touch Panel Adjustment (2)

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Run:Color / Select:[3][6]

1.Touch Screen Calibration

2.Touch PNL Measurement Mode

Push this Area. [OK]

Push this Area. [Cancel]

Touch Panel to coordinate them.

<< Please Touch

3. On the displayed menu screen, select “1. Touch Screen Calibration” and press the [Color] button.

Figure 3-13. Touch Panel Adjustment (3)

4. Press “Push this Area. [OK]” to display the adjustment screen. To abort the adjustment, press “Push this Area. [Cancel]”.

Figure 3-14. Touch Panel Adjustment (4)

5. Press “+” displayed on the four corners in order using the touch pen.

Figure 3-15. Touch Panel Adjustment (5)

Adjustment Details of Adjustments 72

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Push this Area. [Save]

Push this Area. [Cancel]

Calibration Check

Touch Red Area

Complete !

Push [Color] Button.

6. When performing the adjustment again, press “Push this Area. [Cancel]” and start from Step 4 again. To save the adjustment result, press “Push this Area. [Save]”.

Figure 3-16. Touch Panel Adjustment (6)

7. Press the areas within the red boxes (x5) using the Touch Pen.

Figure 3-17. Touch Panel Adjustment (7)

8. When “Complete!” appears on the LCD, press the [Color] button to finish the adjustment.

Figure 3-18. Touch Panel Adjustment (8)

Adjustment Details of Adjustments 73

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

Retry Check

Push this Area. [OK]

9. If “Retry Check” appears on the LCD, press “Push this Area. [OK]” to start from Step 7 again.

図 3-19. Touch Panel Adjustment (9)

Adjustment Details of Adjustments 74

Confidential

CHAPTER 4

MAINTENANCE

Confidential

Epson WF-7620/7610/7110 series Revision B

4.1 Cleaning

4.1.1 Cleaning the CR Unit

In this product, ink may be attached on the CR Unit by structure of Printhead and CR Unit. So, head short circuit may arise due to ink attachment on the terminal of the head FFC when replacing the printhead.

 This cleaning should be carried out only when replacing the printhead.  When installing the Printhead, make sure the Head FFC is not contaminated with ink

beforehand.

 Tool



Cotton swab or soft dry dust-free cloth

 Cleaning procedure

1. After pulling out the head FFC while holding the printhead from the carriage, confirm the ink attachment on the CR Unit.

2. If ink attached on the CR Unit, wipe it off with a cotton swab (or a soft dry dust-free cloth).

Maintenance Cleaning 76

Confidential

Epson WF-7620/7610/7110 series Revision B

4.1.2 Cleaning the Exterior Parts/inside of the printer

This section describes how to clean the sections other than the carriage.  Instructions for cleaning

Exterior parts such as housing



Wipe dirt off with a soft clean cloth moistened with water. For glossy or transparent parts, use of unwoven cloth is recommended to avoid scratching those parts.

 Inside of the printer

Remove paper dust with a vacuum cleaner.

 Rubber or plastic rollers such as an Pickup Roller used to feed paper

If paper dust adhered to the rollers decreases the frictional force of the rollers and the rollers cannot properly feed paper, wipe off the paper dust with a soft cloth moistened with diluted alcohol.

 Instructions for cleaning ink stains

Wipe the stains off with a cloth wrung out of diluted alcohol.

 Do not use alcohol for cleaning the transparent parts. Doing so may cause them to get

cloudy.

 When wiping paper dust off the Pickup Roller/Middle Roller, be careful not to rub

against the surface asperity.

 To minimize the effect on the parts, use diluted alcohol such as 70% diluted ether.  After using alcohol for cleaning, make sure to wipe the part off with a soft dry dust-free

cloth to remove alcohol traces fully.

Maintenance Cleaning 77

Confidential

Epson WF-7620/7610/7110 series Revision B

4.2 Lubrication

The type and amount of the grease used to lubricate the printer parts are determined based on the results of the internal evaluations. Therefore, refer to "4.3 Lubrication Points and Instructions (p79)" for the repairing procedures below, and apply the specified type and amount of the grease to the specified part of the printer mechanism.

 Grease

Type Name EPSON Part Code Supplier

Grease G-26 1080614 EPSON Grease G-45 1033657 EPSON Grease G-71 1480682 EPSON Grease G-72 1409258 EPSON Grease G-74 1409257 EPSON

 Tools

Name Availability EPSON Part Code

Injector O * ---

Brush O * ---

Flux dispenser O * 1049533

Note *: Use tools whose specifications are specified in.

Maintenance Lubrication 78

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

ADF Cover Assy

LD Shaft

Application Point

Scanner Driven Pulley

Mounting Shaft

Left

Right

Combination Gear

25.2.9.0553 Mounting Shaft

Combination Gear

21.6.10.8 Mounting Shaft

Guide rail

Center

Scanner Housing Lower

2. Application Point

1. Application Point

7 mm

Slider Base

7 mm

Cam Slider

Paper Stopper Assy

2. Application Point

1. Application Point

2. Application Point

1. Application Point

3. Application Point

Driven Pulley Driven Pulley Holder

Driven Pulley Holder

4.3 Lubrication Points and Instructions

<Part supply as ASP> Supplied as the ADF Cover

Assy <Lubrication status when

supplied as ASP> Lubricated

<Lubrication Point> Contact points (x3)

between the LD Shaft and ADF Cover Assy

<Type> G-71

<Application Amount> φ 1 mm x 2mm x 3points

<Application Amount> Apply with injector.

<Part supply as ASP> Supplied as the Scanner Unit <Lubrication status when

supplied as ASP> Lubricated

1. Combination Gear

21.6.10.8 Mounting Shaft, Combination Gear

25.2.9.0553 Mounting Shaft and Scanner Driven Pulley Mounting Shaft (x2 each)

2. Guide rail of the Scanner Housing Lower (x3)

<Type>

1. G-26

2. G-45

1. φ 1 mm x 2 mm

2. 0.03 g x 3 points

1. Apply with injector.

2. After lubricating with injector, use brush and spread the grease all over the guide rail in the order indicated in the figure.

Figure 4-1. Lubrication of the LD Shaft

Figure 4-2. Lubrication of the Scanner Unit

<Part supply as ASP> None <Lubrication status when

supplied as ASP>

--<Lubrication Point>

1. Grooves of the slider base (contact points with the Cam Slider)

2. Cam Slider

<Type>

1. G-72

2. G-71

1. 0.5 g

± 0.1 g x 16 points

2. Appropriate amount (0.005 g ± 0.001 g)

 Apply with brush.

Start lubrication 7 mm from the outer end of each groove row of the Slider Base and lubricate 7 mm at 2 points per groove (16 points in total). After lubrication, attach the Cam Slider to the Slider Base and move the Cam Slider back and forth three times to apply the grease evenly.

<Part supply as ASP> None <Lubrication status when

supplied as ASP>

--<Lubrication Point>

1. Shaft hole of the Driven Pulley

2. Bearing of the Driven Pulley Holder (x2)

3. Contact points (x8) on the Driven Pulley Holder with the Main Frame

<Type> G-71

<Application Amount> φ 1 mm x 1mm

 Apply with injector.

1. Do not lubricate other than the inside of the shaft hole of Driven Pulley.

2. Wipe off excess grease after assembling the Driven Pulley with the Driven Pulley Holder.

Figure 4-3. Lubrication of the Paper Stopper Assy

Maintenance Lubrication Points and Instructions 79

Figure 4-4. Lubrication of the Driven Pulley / Driven Pulley Holder

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

PF Roller

EJ Roller

Application Point

PF Roller

Paper Guide

Middle

PF Roller

Paper Guide

Middle

Application Point

Cap Slider

Application Point

2. Application Point

1. Application Point

Valve Cam

Cam Slider

Application Point

Gear Cover

Application Point

<Part supply as ASP> None <Lubrication status when

supplied as ASP>

--<Lubrication Point>

1. Contact point between the PF Roller Grounding Spring and EJ Roller

2. Contact point between the PF Roller and EJ Roller Grounding Spring

<Type> G-71

<Application Amount> φ 1 mm x 1 mm

<Remarks> Apply with injector.

<Part supply as ASP> None <Lubrication status when

supplied as ASP>

--<Lubrication Point>

Contact points (x4) between the PF Roller and Paper Guide Middle

<Type> G-71

<Application Amount> φ 1 mm x 4 mm x 4 points

<Remarks> Apply with injector.

Figure 4-6. Lubrication of the PF Roller

<Part supply as ASP> Supplied as the Ink system

Assy <Lubrication status when

supplied as ASP> Lubricated

<Lubrication Point> Hooks (x4) on the Cam

Slider <Type>

G-71 <Application Amount>

1 mm x 1 mm <Remarks>

 Apply with injector.

<Part supply as ASP> Supplied as the Ink system

Assy <Lubrication status when

supplied as ASP> Lubricated

<Lubrication Point> Shaft of the Gear Cover

<Type> G-71

<Application Amount> Appropriate amount

<Remarks> Apply with injector and

spread all over the shaft.

Figure 4-5. Lubrication of the PF Roller Grounding Spring / EJ Roller Grounding Spring

<Part supply as ASP> Supplied as the Ink system

Assy <Lubrication status when

supplied as ASP> Lubricated

<Lubrication Point> Contact surface of the Cap

Slider (x4) <Type>

G-74 <Application Amount>

1 mm x 15 mm <Remarks>

 Apply with brush.  Stir G-74 before use.

<Part supply as ASP> Supplied as the Ink system

Assy <Lubrication status when

supplied as ASP> Lubricated

1. Grooves (x2) on the Valve Cam

2. Contact surfaces (x2) between the Ink System Assy and Valve Cam

<Type> G-74

1. Appropriate amount (3mm x 15 mm)

2.Appropriate amount (2mm x 65mm)

 Apply with Flux

Dispenser.

 Keep lubricant within

the application area shown in the figure.

Figure 4-7. Lubrication of the Ink system Assy (1) Figure 4-8. Lubrication of the Ink system Assy (2)

Maintenance Lubrication Points and Instructions 80

 Stir G-74 before use.

Figure 4-9. Lubrication of the Ink system Assy (3) Figure 4-10. Lubrication of the Ink system Assy (4)

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

CR Unit Front Frame

⑤

Front Frame

①

②③

④

CR Guide Frame

2 to 3 times

CR Unit

CR Guide Frame

Application Point

Front Side

Cutout

Front

Application Point

Main Frame

Pickup Assy

Application Point

3 mm wide

2. Application Point

1. Application Point

3. Application Point

<Part supply as ASP> None <Lubrication status when

supplied as ASP>

---

1. 2. 3. 4. 5. Contact surface (x5) between the CR Guide Frame and the CR Unit

5. Contact surface (x1) between the Front Frame and the CR Unit

<Type> G-71

1. φ 1 mm x 1.2g / 460mm

2. φ 1 mm x 0.6g / 460mm

3. 4. φ 1 mm x 0.4g / 460mm

5. φ 1 mm x 0.8g / 460mm

 1. 5. Apply with injector

on the entire route once.

 Apply with injector.  After application, move

the CR Unit to both ends two to three times to spread the grease.

<Part supply as ASP> None <Lubrication status when

supplied as ASP>

--<Lubrication Point>

Contact points (x4) between the Main Frame and D/E Lever

<Type> G-71

<Application Amount> Appropriate amount

(10 mm)

x 4 points

 Apply with injector.  Lubricate on the inside

of the cutout and on the printer's front side of the Main Frame.

<Part supply as ASP> Pickup Assy 1st: None Pickup Assy 2nd: Supplied

as the Frame Base 2nd Assy

Lubricated <Lubrication Point>

Bearings for the Pickup Roller on the Pickup Assy

<Type> G-74

<Application Amount> Appropriate amount

(6 mm x inner circumferences of bearings)

 Apply with Flux

Dispenser.

 Stir G-74 before use.  Spread all over the inner

circumference for lubrication

Figure 4-11. Lubric ation of the CR Guide Frame / Front Frame

<Part supply as ASP> Supplied as the Duplex

Unit Assy <Lubrication status when

supplied as ASP> Lubricated

1. Bearings (x4) of the intermediate rollers

2. Shafts (x2) to set gears

3. Gear Shaft (x2)

<Type> G-71

1. φ 1 mm x half of the circumference (0.052g)

1 mm x 10mm (0.014g)

3. φ 1 mm x circumference

(0.38g) <Remarks>

 Apply with injector.

Figure 4-12. Lubrication of the Main Frame

Figure 4-13. Lubrication of the Pickup Assy 1st / Pickup Assy 2nd

Figure 4-14. Lubrication of the Duplex Unit

Maintenance Lubrication Points and Instructions 81

Confidential

Epson WF-7620/7610/7110 series Revision B

Stop buttonNo.1 buttonHome buttonPower on button

EPSON PRINTER ROM

Program Update Mode

IPLx

Program Update Mode

FINISHED

ROM1 FIXSUM xxxx ROM2 FIXSUM xxxx ROM3 FIXSUM xxxx

ROM3 VERSION xxxxx

ROM1 VERSION xxxx ROM2 VERSION xx.xx.xxx

4.4 Firmware Update

This section describes how to update the firmware of the printer.

 The start-up method of the firmware update mode differs depending on the panel type

mounted on the printer, so refer to the appropriate start-up method.

 If any error occurs during a firmware update and all LEDs light, disconnect the power

cable and update it again.

Firmware update procedure  Case of WF-7620/WF-7610 series

1. From a Power-off status, push “Power on button” while pushing “Home button”, “No.1 button” and “Stop button” (Until a message is displayed on the LCD)

The following message is displayed on the LCD and all LEDs light.

2. Start the exclusive firmware update program and select the latest firmware data to rewrite it.

3. After the firmware update is completed and the following message is displayed and also all LEDs light, push “No.0 button” to turn off the printer.

Disassembly/Reassembly 82

Confidential

Epson WF-7620/7610/7110 series Revision B

Stop buttonLeft buttonPaper setup buttonPower on button

EPSON ROM : IPLF Program Update

SUM xxxx/xxxx VER ASxxxx/xx.xx

 Case of WF-7110 series

1. From a power-off status, push “Power on button” while pushing “Paper setup button”, “Left button” and “Stop button”. (Until a message is displayed on the LCD)

The following message is displayed on the LCD and all LEDs light.

2. Start the exclusive firmware update program and select the latest firmware data to rewrite it.

3. After the firmware update is completed and the following message is displayed, push “OK button” to turn off the printer.

Disassembly/Reassembly 83

Confidential

CHAPTER 5

APPENDIX

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

5.1 Connector Diagram

Cable connections of this printer are shown below.

FAX Board

CR Motor

APG Sensor

PE Sensor

Duplex Unit Cover Open Sensor

PF Encoder Sensor

PF Motor

ADF Unit

ADF Encoder Sensor

ADF plunger

ADF PE Sensor

Paper Support

Encoder Sensor

ADF Motor

ADF Document Sensor

Relay Board

CN2 CN21

CN44

CN5

CN30

CN59

CN52

CN60

CN51

CN31

CN73

CN77

CN71

CN76

CN33

CN72

Panel Unit

Panel Board

CN41 CN42 CN43CN20

Main Board

CR Unit

Printhead

CSIC

CR Contact Module

CN1

CN53

CN4

CN2

CN34

CN35

CN54

CN57

CN56

CN55

PW Sensor

CN2

CR Encoder Board

CN1

Cover Open Sensor

SD card

USB cable

APG Motor

ASF Motor

ASF Encoder Sensor

Frame Base 2nd Assy Paper Stopper sensor

ASF PE Sensor

Paper Stopper Sensor

Scanner Unit

Scanner Open Sensor

Scanner Motor

CIS Module

CN74

CN32

CN70

PS Board

AC in

Figure 5-1. Connector Diagram

CN45

CN9CN501

J220

Wireless LAN Module

PIS Sensor

Appendix Connector Diagram 85

Confidential

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B

The tape attaching start position

Strong tape

CR Unit

Housing upper

5.2 Protection for Transportation

This section describes the cautions for packing the printer before returning it to the user.

5.2.1 Securing the CR Unit

 Purpose

To prevent damaging the CR Unit by shock during transportation.

 Risk if it is not performed.

Fatal error caused by the damage of the CR Unit.

 Preparation

Strong tape (Length: 220 mm, width: 22 mm, fold on end: 5 mm)

 Method

1. Turn off the printer to set the CR Unit to its home position.

2. Move the CR Unit until it hits the right frame from the home position.

3. Attach the strong tape on the CR Unit as shown below to secure the CR Unit.

Figure 5-2. Securing the CR Unit

Appendix Protection for Transportation 86

Confidential

Epson WF-7620, WF-7610, WF-7110 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

TROUBLESHOOTING

1.1 Troubleshooting

1.1.1 Troubleshooting Workflow

1.2 Power-On Sequence

1.3 Fatal Error Code List

1.4 Status sheet

1.4.1 Start method of Inspection Mode

1.4.2 Description of Status sheet (Non-disclosed information to user)

DISASSEMBLY/REASSEMBLY

2.1 Overview

2.1.1 Tools

2.1.2 Jigs

2.1.3 Standard Operation Time for servicing the product

2.2 Disassembly/Reassembly Procedures

2.2.1 Functional differences between models and component parts

2.2.2 Functional differences between models and component parts

2.2.3 Disassembly Flowchart

2.2.3.1 Housing Part (WF-7620/WF-7610 Series)

2.2.3.2 Housing Part (WF-7110 Series)

2.2.3.3 Printer Mechanism Part

2.3 Detailed Disassembly/Reassembly Procedure for each Part/Unit

2.4 Routing FFCs/cables

ADJUSTMENT

3.1 Required Adjustments

3.2 Details of Adjustments

3.2.1 PF/CR Timing Belt Tension Measurement

3.2.1.1 PF Timing Belt Tension Measurement

3.2.1.2 CR Timing Belt Tension Check

3.2.2 PG Adjustment

3.2.2.1 PG Adjustment procedure

3.2.2.2 Preparation

3.2.2.3 PG adjustment procedure

3.2.2.4 Checking the Platen Gap

3.2.3 Touch Panel Adjustment (WF-7620/7610 Series only)

MAINTENANCE

4.1 Cleaning

4.1.1 Cleaning the CR Unit

4.1.2 Cleaning the Exterior Parts/inside of the printer

4.2 Lubrication

4.3 Lubrication Points and Instructions

4.4 Firmware Update

APPENDIX

5.1 Connector Diagram

5.2 Protection for Transportation

5.2.1 Securing the CR Unit