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

SERVICE MANUAL

Color Inkjet Printer

Epson WF-7620 Series

Epson WF-7610 Series

Epson WF-7110 Series

CONFIDENTIAL

SEMF13-003

Notice:

All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.

All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.

The contents of this manual are subject to change without notice.

The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences thereof.

EPSON is a registered trademark of SEIKO EPSON CORPORATION.

Note :Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their respective owners. EPSON disclaims any and all rights in those marks.

Copyright © 2014 SEIKO EPSON CORPORATION

Printer CS Quality Assurance Department

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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, for 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.

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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 manual.

16.Make the specified adjustments when you disassemble the printer.

17.When cleaning this product, follow the procedure described in this manual.

18.When transporting this product after filling the ink in the printhead, pack the printer without removing 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.

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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)".

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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)"

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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	Overview		.................................................................................................................... .............................................	24
	2.1.1	Tools ...............................................................................................................................................................		24
	2.1.2	Jigs ..................................................................................................................................................................		24
	2.1.3	Standard .......................................................................................Operation Time for servicing the product		25
2.2	Disassembly/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	Details 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

7

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5.2Protection for Transportation 86

5.2.1Securing the CR Unit 86

CHAPTER 1

TROUBLESHOOTING

Confidential

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

Revision B

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.

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.

Start

Turn on the printer

Does printer turn on the power?

Yes

Is Power-on sequence finished without error?

Yes

Standby condition

Print check pattern

Is printing operation finished without error?

Yes

Is printing operation finished without trouble?

Yes

No

1

(p 11)

No	2
	(p 11)

No	3

(p 11)

No	4

(p 12)

What is returned reason?	Printer failure only
ADF/Scanner
unit failure
Copy an image
Is scanning operation	No	5
finished without
trouble?
Yes		(p 12)
ADF failure?	No
Yes
Copy an image by ADF
Is ADF operation finished	No	6
without trouble?
Yes		(p 12)

Finish*

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

Figure 1-1. Troubleshooting Workflow (1)

Troubleshooting

Troubleshooting Workflow

10

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

Revision B

1	The power-on	2	Error is indicated during
	sequence does not		power-on sequence (p 10)

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

Fatal error

Please refer to " 1.3 Fatal Error Code List (p15)"for troubleshooting.

* : 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.

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 error

[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 timing

•Maintenance Box monitoring timing

[Major Troubleshooting]

•Remove and reinstall Maintenance Box

•Maintenance Box replacement

•Relay Board CSIC Terminal replacement

•Relay Board Assy replacement

•Relay Board FFC replacement

•Main Board replacement

Ink End error

Ink cartridge detection error

No Ink cartridge error

Cover open error

Paper Jam error

CR Fixing Tape error

[Occurrence Condition]

[Occurrence Condition]

[Occurrence Condition]

[Occurrence Condition]

Please refer to " Paper Jam

[Occurrence Condition]

This error occurs when ink in Ink

This error occurs when Ink

This error occurs when Ink

This error occurs when Scanner

error".

This error occurs if a paper jam

cartridge is empty.

cartridge data is incorrect or Ink

cartridge is not installed.

Unit (Printer Cover) is open.

occurs during the power-on

[Major Occurrence Timing]

cartridge is not recognized

[Major Occurrence Timing]

[Major Occurrence Timing]

sequence before initial ink

correctly.

charge.

•

Power-on timing

[Major Occurrence Timing]

At power-on

•

At power-on

[Major Occurrence Timing]

•

Print start timing

[Major Troubleshooting]

•

During printing

•

Print timing

•

Power-on timing

[Major Troubleshooting]

Power-on timing

•

Cleaning timing

•

Print start timing

Install Ink cartridge

(before initial ink charge)

•

Ink cartridge replacement

•

Cleaning timing

• Close Scanner Unit (Printer

[Major Troubleshooting]

timing

•

Ink cartridge replacement

Cover) replacement

[Major Troubleshooting]

timing

• Scanner Unit (Printer Cover)

Open the scanner unit and

[Major Troubleshooting]

replacement

remove the CR fixing tape.

Ink cartridge replacement

•

Cover Open Sensor

[NOTE]

• Remove and reinstall Ink

•

replacement

cartridge.

Main Board replacement

If an error occurs during

•

Ink cartridge replacement

printing, the page where the error

•

CSIC Terminal replacement

occurred is skipped and the

•

CR Contact Module

printing resumes from the next

•

replacement

page.

Head FFC replacement

•

Main Board replacement

3 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 timing

•Duplex print timing

[Major Troubleshooting]

1remove the jammed paper by opening Scanner Unit or Printer Cover.

2Push “Start” button.

3If not resolved by 2), check the following.

•Foreign material, bits of paper

•Part come-off

•PE Lever

•PE Sensor

•Float of Paper Guide Front Porous Pad

•Main Board

•PW Sensor

[NOTE]

*If an error occurs during printing, the page where the error occurred is skipped and the printing resumes from the next page.

*If an error occurs during duplex printing, the following are performed.

•If an error occurs during the front face of duplex printing, the page where the error occurred and the next page are skipped and the printing resumes from the page after the next.

•If an error occurs during the back face of duplex printing, the page where the error occurred is skipped and the printing resumes from the next page.

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]

1Put paper in cassette and push “START” button.

2If a paper stops before reaching PE Sensor, remove it and check the paper condition.

3A) If no damage on the paper, set edge guide correctly after putting paper in cassette and push “PRINT” button again.

B)If damage on the paper, check foreign materials / parts comeoff / parts transformation in paper path.

4If not resolved by 3-A) & 3-B), check the following.

•Pickup Roller

•Duplex Unit

•PE Sensor

•Main Board

•PF Motor

•Casette Assy

Double Feed error

No Paper Cassette error

Paper Size Unmatch error

Manual Tray No Paper error

Manual Feed Request error

Excessive Manual Feed Error

[Occurrence Condition]

[Occurrence Condition]

[Occurrence Condition]

[Occurrence Condition]

[Occurrence Condition]

[Occurrence Condition]

This error occurs on the following

This error occurs if one of the

This error occurs when actual

When printing from Manual Tray

This error occurs if the printer

This error occurs when the PE

cases.

cassettes is not installed.

paper size is not matched to

(MSF unit), this error occurs if

cannot receive the manual feed

Sensor detects paper before

• A paper is ejected without

[Major Occurrence Timing]

theoretical one.

paper is not loaded at the time of

request.

manual feed or when paper is

printing during paper loading

[Major Occurrence Timing]

data transmission.

[Major Occurrence Timing]

inserted too much.

operation.

Paper loading timing

[Major Occurrence Timing]

[Major Occurrence Timing]

• Actual paper length is longer

(Front loading)

•

Duplex print timing

Paper loading timing

than theoretical one.

[Major Troubleshooting]

• FAX data print timing

Paper loading timing

(Rear loading)

Print start timing (Rear loading)

[Major Occurrence Timing]

[Major Troubleshooting]

(Rear loading)

[Major Troubleshooting]

[Major Troubleshooting]

Install the Cassette Assy.

[Major Troubleshooting]

Paper loading timing

1 Put correct sized paper in

• Send the print data.

• Eject paper with panel

[Major Troubleshooting]

cassette, and push “START”

• Put paper in the Manual Tray

• Main Board replacement

operation, and load paper

button.

•

(MSF unit).

•

again.

•

PE Lever replacement

2 If not resolved by step 1),

PE Sensor replacement

Main Board replacement

•

PE Sensor replacement

•

check the following points.

•

PW Sensor replacement

•

PE Sensor replacement

•

PW Sensor replacement

PE Lever

•

Main Board replacement

•

PE Lever replacement

•

Main Board replacement

•

PE Sensor

[NOTE]

•

PW Sensor

•

Main Board

This error occurs only for manual

duplex print.

Insufficient Manual Feed

error

[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.

Figure 1-2. Troubleshooting Workflow (2)

Appendix

Troubleshooting Workflow

11

Confidential

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

Revision B

					Scanning cannot be	6		ADF does not operate
	4 Problems related to print result or during printing(p 10)			5 performed
								normally (p 10)
					successfully (p 10)

		Poor Printing			Poor Paper Loading			Abnormal Noise			Scanner failure
	[Phenomenon]			[Presumable Cause]			[Presumable Cause]			[Presumable Cause]
	•	Poor printing quality		• Use of 3rd party media			•	Foreign material		•	Contamination of Scanner
	• Ink stain on paper			•	Edge guide mis-setting		•	Insufficient grease		•	Glass
	•	Dot missing		•	Foreign material		•	Gear damage			Contamination of Document
	• Paper eject without printing			•	Part come-off		[Major Troubleshooting]			•	Pad
	[Presumable Cause]			• Contamination of paper feed							CIS Unit bonding failure
				•	roller (Duplex Unit)		•	Foreign material removal		•	CIS Unit damage
	• Driver / Panel mis-setting				Cassette Assy damage		•	Lubrication of grease		•	Scanner Motor damage
	• Contamination of CR scale			•	Pickup Roller deterioration,		•	Gear replacement		[Major Troubleshooting]
	•	Contamination of Printhead			contamination
	•	Cover		• Contamination of PF roller						•	Scanner Glass cleaning
		Printhead damage		[Major Troubleshooting]						•	Document Pad cleaning
	• Ink clogging of Printhead									•	Document Pad replacement
	• Contamination on Cap Unit /			•	Recommendation of EPSON					•	CIS Unit replacement
		Wiper of Ink system Assy			media					•	Scanner Motor replacement
	• Ink system Assy damage			•	Edge guide re-setting
	• Float of Paper Guide Front			•	Foreign material removal
	•	Porous Pad		•	Part re-installation
		Narrow PG		•	PF Roller replacement
	•	PE Lever damage		•	Cassette Assy replacement
	•	PE Sensor damage		•	Pickup Roller replacement
	•	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

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

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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				CR Unit/PF Roller
		movement and position*2
	1. Printhead initialization*3	130					HP			0
	1-1.Initializes the Printhead.					CR Unit
			APG Lever				CR Lock
	2. Checking for waste ink overflow	130					HP			0
	2-1.Checks the waste ink counter if the waste ink overflow is occurring.
	3. Avoiding deadlock sequence
	*4	130					HP			0
	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.	130					HP			0
	3-3.The PF Motor rotates clockwise, and releases the CR lock.	130					HP			0
	4. Seeking the home position	130					HP			0
	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	130					HP			0
	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.	130					HP			0
	5. PF initialization	130					HP			0
	5-1.The CR Unit moves slowly about 3 cm to the 130-digit side.
	5-2.The PF Roller rotates counterclockwise quickly.	130					HP			0
	5-3.The CR Unit moves to ASF trigger ON => OFF positions.	130					HP			0
	5-4.The PF Motor rotates clockwise for approx. one second.	130					HP			0
	5-5.The PF Roller rotates clockwise for about one second.	130					HP			0
	5-6.The PE sensor detects if paper exists and the PF Motor rotates clockwise for approx. 0.5 second.*5	130					HP			0

Appendix

13

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Epson WF-7620 / WF-7610 / WF-7110 Series							Revision B
	Table 1-1. Normal Power-on Sequence
	Operation*1			CR Unit/PF Roller
		movement and position*2
	6. Low temperature operation sequence
*6		130					HP		0
	6-1.The CR Unit returns its home position.
	6-2.The CR Unit moves between around the switch lever and in front of the Left Frame two times.	130					HP		0
	7. PF measurement and PW sensor initialization	130					HP		0

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	130								HP		0
Front).
7-4.The CR Unit returns near its home position. At the same time, the PF Motor rotates clockwise and measures the	130								HP		0
load.

8. Detecting ink cartridge and initializing ink system

*7

130

HP

0

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

8-2.To check the operation of the PIS Sensor and to detect ink, the CR Unit moves back and forth between the CR Unit

130

HP

0

and near the APG Lever for two times.

9. CR lock setting

130

HP

0

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

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

130

HP

0

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 oC (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.

	1	Prior 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.
	3	Prior 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.

4Prior to Step 5-5 Initializes the APG unit (set to PG1 position).

5Prior to Step 7-1 Measurement of the CR Motor

Appendix

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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	Error	Error name		Possible cause
		code
				• ADF Encoder failure (contaminated/detached scale, Encoder Board
		0x01	ADF PID excess speed error		failure)
				• Motor driver failure (Main Board failure)
				• ADF Encoder failure (contaminated/detached scale, Encoder Board
		0x02	ADF PID reverse error		failure)
				•	Paper jam
		0x03	ADF PID lock error	•	ADF Encoder failure (contaminated/detached scale, Encoder Board
					failure)
		0x04	ADF PID acceleration lock detection
				•	ADF Motor failure
			error
				•	Paper jam
		0x05	ADF PID excess load error
				•	Cable disconnection
		0X06	ADF PID DRIVING TIME ERROR	•	Main Board failure
				• ADF Encoder failure (contaminated/detached scale, Encoder Board
		0x09	ADF BS+ excess speed error		failure)
				• Motor driver failure (Main Board failure)
				• ADF Encoder failure (contaminated/detached scale, Encoder Board
		0x0A	ADF BS+ reverse error		failure)
				•	Paper jam
		0x0B	ADF BS+ lock error	•	ADF Encoder failure (contaminated/detached scale, Encoder Board
					failure)
		0x0D	ADF BS+ excess load error	•	ADF Motor failure
	ADF/Scanner			• ADF drive overload (paper jam/foreign object)
				•	Cable disconnection
		0x0E	ADF BS+ driving time error	•	Main Board failure
				•	CIS Unit failure
		0x10	HP detection error	•	Scanner Housing failure
				•	Main Board failure
				•	CIS Unit failure
			Contact detection distance exceeded	• Scanner Housing failure (Including wrong attachment of the origin mark)
		0x11		•	Main Board failure
			error
				• Scanner FFC failure / Scanner FFC connection failure
				• Scanner Motor failure / Scanner Motor connection failure
				•	CIS Unit failure
			Opposite side contact detection distance	• Scanner Housing failure (Including wrong attachment of the origin mark)
		0x12		•	Main Board failure
			exceeded error
				• Scanner FFC failure / Scanner FFC connection failure
				• Scanner Motor failure / Scanner Motor connection failure
				•	CIS Unit failure
			Opposite side wrong contact detection	• Scanner Housing failure (Including wrong attachment of the origin mark)
		0x13		•	Main Board failure
			distance error
				• Scanner FFC failure / Scanner FFC connection failure
				• Scanner Motor failure / Scanner Motor connection failure
		0x14	Measurement failure error	•	Scanner drive mechanism was overloaded.

Appendix

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Epson WF-7620 / WF-7610 / WF-7110 Series					Revision B
			Table 1-2. Fatal Error List (Printer)
	Error type	Error	Error name		Possible cause
		code
		0x20	LED light error	•	CIS Unit failure
				•	Main Board failure
		0x30	Option error	•	Main Board failure
		0x36	Paper jam error	•	Paper jam
				•	Foreign object
				• ADF Encoder failure (contaminated/detached scale, Encoder Board
		0x41	FB PID excess speed		failure)
				• Motor driver failure (Main Board failure)
				• ADF Encoder failure (contaminated/detached scale, Encoder Board
		0x42	FB PID reverse		failure)
				•	Paper jam
		0x43	FB PID lock	•	ADF Encoder failure (contaminated/detached scale, Encoder Board
					failure)
		0x44	FB PID acceleration lock
				•	ADF Motor failure
		0x45	FB PID excess load	• ADF drive mechanism overload (assembling failure, lubrication failure)
				•	Cable disconnection
	ADF/Scanner	0x46	FB PID driving time	•	Main Board failure
				• ADF Encoder failure (contaminated/detached scale, Encoder Board
		0x49	FB BS+ excess speed		failure)
				• Motor driver failure (Main Board failure)
		0x4A	FB BS+ reverse	• ADF Encoder failure (contaminated/detached scale, Encoder Board
					failure)
		0x4B	FB BS+ lock	•	ADF Encoder failure (contaminated/detached scale, Encoder Board
					failure)
		0x4D	FB BS+ excess load	•	ADF Motor failure
				• ADF drive mechanism overload (assembling failure, lubrication failure)
				•	Cable disconnection
		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
				•	Paper jam
		0x60	HP error	•	Foreign object
				• Deformation of the Main Frame
			Contact error at ink replacement timing	•	Paper jam
		0x63		•	Foreign object
			(Power-off)
				• Deformation of the Main Frame
				•	APG Motor failure
	Printer	0x67	APG target position acquisition error	•	APG Sensor failure
				•	Main Board failure
		0x68	Contact error at valve initialization	•	Ink system failure
		0x69	Contact error at I/S clutch operation	•	Main Board failure
		0x6B	PF runaway error	•	PF Encoder failure
				•	Motor driver failure
		0x7F	Inspection mode error		---*
		0x81	PIS environmental light error	•	Ambient light

Appendix

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	Epson WF-7620 / WF-7610 / WF-7110 Series					Revision B
				Table 1-2. Fatal Error List (Printer)
		Error type	Error	Error name		Possible cause
			code
					•	PIS failure
			0x82	PIS constant reflection error	•	Main Board failure
					•	Ambient light
			0x83	No reflected light error	• Fault Detection Plate failure
					• PIS failure (installation posture, contamination)
			0x84	PIS abnormal misalignment error	•	PIS failure
			0x85	PIS abnormal duty error	•	Main Board failure
			0x86	PIS Duty incalculable error	•	Main Board failure
			0x87	PIS Empty jig error		---*
					•	PIS failure
			0x88	PIS Excessive Light error	•	Main Board failure
					•	Diffused light
					• PIS failure (installation posture, contamination)
			0x89	PIS Insufficient Light error	• Fault Detection Plate failure
					•	Main Board failure
					•	Ink cartridge failure
			0x8D	Factor error other than printer device	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.
			0x8E	Driver mismatch error	An unsupported driver was used.
			0x8F	EEPROM verify error (by command)		---*
			0x93	PE Sensor error	•	PE Sensor failure
					•	Main Board failure
			0x97	Head drive circuit VBS over-voltage	•	Head FFC failure
				error	•	Main Board failure
		Printer	0x9A	Circuit error (include blowout of a fuse)	•	Main Board failure
			0x9B	Transistor temperature error
			0x9C	X-Hot detect error (pre printing)	•	Printhead failure
			0x9D	X-Hot detect error (after flushing)
					•	Main Board failure
			0x9E	Head temperature error
			0x9F	No print inspection mode error		---*
					•	Ink cartridge failure
			0xB0-	Ink device error	•	CSIC Terminal failure
			0xCF		•	CR Contact Module failure
					•	Main Board failure
					• ASF Encoder failure (contaminated/detached scale, Encoder Board
						failure)
			0xD1	ADF PID excess load error	•	ASF Motor failure
					• Pickup Roller (2nd cassette) drive mechanism overload (paper jam/
						foreign object)
					•	Cable disconnection
					• ASF Encoder failure (contaminated/detached scale, Encoder Board
			0xD2	ASF PID excess speed error		failure)
					• Motor driver failure (Main Board failure)
					• ASF Encoder failure (contaminated/detached scale, Encoder Board
			0xD3	ADF PID reverse error		failure)
					•	Paper jam
					• ASF Encoder failure (contaminated/detached scale, Encoder Board
						failure)
			0xD4	ASF PID lock error	•	ASF Motor failure
					• Pickup Roller (2nd cassette) drive mechanism overload (paper jam/
						foreign object)
					•	Cable disconnection
	Appendix					17

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Epson WF-7620 / WF-7610 / WF-7110 Series					Revision B
			Table 1-2. Fatal Error List (Printer)
	Error type	Error	Error name		Possible cause
		code
		0xD6	ASF PID excess torque limitation error	Pickup Roller (2nd cassette) drive mechanism overload (paper jam/foreign
				object)
				• ASF Encoder failure (contaminated/detached scale, Encoder Board
		0xD8	ASF load position reverse error		failure)
				•	Paper jam
				• ASF Encoder failure (contaminated/detached scale, Encoder Board
		0xD9	ASF load position excess speed error		failure)
				• Motor driver failure (Main Board failure)
				• ASF Encoder failure (contaminated/detached scale, Encoder Board
					failure)
		0xDA	ASF load position excess load error	•	ASF Motor failure
				• Pickup Roller (2nd cassette) drive mechanism overload (paper jam/
					foreign object)
				•	Cable disconnection
		0xDE	ASF PID driving time error	•	Main Board failure
		0xDF	ASF load position driving time error
				• CR Encoder failure (contaminated/detached scale, Encoder Board failure)
		0xE1	CR PID excess load error	•	CR Motor failure
				• Carriage overload error (paper jam/foreign object)
				•	Cable disconnection
				• CR Encoder failure (contaminated/detached scale, Encoder Board failure)
		0xE2	CR PID excess speed error	• 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)
		0xE3	CR PID reverse error	• Tooth skip of the CR Timing Belt
	Printer			•	Improper tension of the CR Timing Belt
				•	Paper jam
				• CR Encoder failure (contaminated/detached scale, Encoder Board failure)
		0xE4	CR PID lock error	•	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)
		0xE5	CR PID speed fall error	•	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)
		0xE8	CR load position reverse error	• 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)
		0xE9	CR load position excess speed error	• 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)
		0xEA	CR load position excess load error	•	CR Motor failure
				• Carriage overload error (paper jam/foreign object)
				•	Cable disconnection
		0xEB	APG driving time error	•	Main Board failure
				•	APG Sensor failure
		0xEC	APG excess speed error	•	APG Motor failure
				• Tooth skip of APG drive gear

Appendix

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Epson WF-7620 / WF-7610 / WF-7110 Series						Revision B
				Table 1-2. Fatal Error List (Printer)
	Error type		Error	Error name		Possible cause
			code
			0xEE	CR PID driving time error	•	Main Board failure
			0xEF	CR load position driving time error
					• PF Encoder failure (contaminated/detached scale, Encoder Board failure)
			0xF1	PF PID excess load error	•	PF Motor failure
					• PF drive mechanism overload (paper jam/foreign object)
					•	Cable disconnection
					• PF Encoder failure (contaminated/detached scale, Encoder Board failure)
			0xF2	PF PID excess speed error	• 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)
			0xF3	PF PID reverse error	• 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)
	Printer		0xF4	PF PID lock error	•	PF Motor failure
					• PF drive mechanism overload (paper jam/foreign object)
					•	Cable disconnection
			0xF6	PF PID excess torque limitation error		---*
					• PF Encoder failure (contaminated/detached scale, Encoder Board failure)
			0xF8	PF load position reverse error	•	Tooth skip of the PF Timing Belt
					• Improper tension of the PF Timing Belt
					• PF Encoder failure (contaminated/detached scale, Encoder Board failure)
			0xF9	PF load position excess speed error	• 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)
			0xFA	PF load position excess load error	•	PF Motor failure
					• PF drive mechanism overload (paper jam/foreign object)
					•	Cable disconnection
			0xFE	PF PID driving time error	•	Main Board failure
			0xFF	PF load position driving time error
	Note "*":	Not occurs except in manufacturing process.

Appendix

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

Revision B

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.

•Configuration 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.

1.4.1Start 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

Power on button

Home button

WF-7110 series

Power on button

Home button

2.Select the following items from the Inspection menu.

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

WF-7110 series : “3. STSheet Mode”

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

[WF-7620/7610 series]

* button

Lower button

Stop button

Stop button

Inspection Mode

3. STSheet Mode

[WF-7110 series]

3.The product starts as usual.

4.Print the Status sheets.

Appendix

Start method of Inspection Mode

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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 information of the
residual quantity	Maintenance Box

Appendix

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

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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 2	Number of loaded from 2nd cassette
			cassette
	Paper feed slot		Number of sheet loaded from paper
			feed slot.
	Number of sheets scanned
	ADF		Number of sheets scanned from ADF	Scanner Glass	Number of sheets scanned from
			Unit.		Scanner Glass.
	Number of Replacement
	Ink Cartridge		Number of replacement of Ink	Maintenance Box	Number of replacement of
			Cartridge		Maintenance Box

Appendix

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

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CHAPTER 2

DISASSEMBLY/REASSEMBLY

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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

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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	Adjustment/	Total
		Inspection
USB Cover	0:44	---	0:44
Lower Case	1:14	---	1:14
Pickup Holder 1st	0:23	---	0:23
Pickup Roller 1st	0:53	---	0:53
Pickup Holder 2nd	0:10	---	0:10
Pickup Roller 2nd	0:23	---	0:23
Decoration Plate	0:45	---	0:45
Panel Unit	1:50	0:26	2:16
Speaker Cover	2:12	---	2:12
Speaker	2:12	---	2:12
Duplex Unit Cover Assy	0:50	4:43	5:33
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	0:19	---	0:19
Document Pad	0:14	---	0:14
MSF Cover	0:06	---	0:06
ADF Cover Assy	0:31	---	0:31
LD Shaft	0:42	---	0:42
ADF LD Assy	1:14	---	1:14
ADF/Scanner Unit	9:28	---	9:28
ADF Unit	14:42	0:46	15:28
ADF Decoration Plate Front	14:55	---	14:55
ADF Decoration Plate Rear	14:52	---	14:52
ADF Cover Right	15:03	---	15:03
ADF Cover Front	17:48	---	17:48
ADF Cover Rear	16:52	---	16:52
ADF Paper Support Cover	17:13	---	17:13
Paper Support Encoder Sensor	17:45	---	17:45
ADF Paper Support Assy	19:00	---	19:00
ADF Motor Unit	23:59	0:46	24:45
ADF Frame Base	23:59	---	23:59
Scanner Unit	14:42	0:58	15:40
Scanner Housing Upper Assy	17:42	---	17:42

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	Epson WF-7620/7610/7110 Series					Revision B
		Table 2-1. Standard Operation Time for servicing the product
					Time
		Parts/Unit		Replacement	Adjustment/	Total
					Inspection
		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		12:50	---	12:50
		Housing Front Assy		14:43	---	14:43
		Cover Open Sensor		15:05	---	15:05
		Housing Front		15:27	---	15:27
		Main Board Unit		21:27	---	21:27
		Cable Support Plate		21:59	---	21:59
		Wireless LAN Module		22:15	---	22:15
		Shield Plate Upper (w/Wireless LAN Module)		22:30	---	22:30
		Main Board (read OK)		24:01	2:25	26:26
		Main Board (read NG)		24:01	17:32	41:33
		Shield Plate Lower (w/Cable Support Plate)		24:01	---	24:01
		Stacker Assy		14:50	---	14:50
		FAX Unit		15:21	---	15:21
		FAX Shield Plate /FAX Connector Cover		16:08	---	16:08
		FAX Board		16:08	---	16:08
		Head FFC Cover		15:07	---	15:07
		Holder Board Assy		15:36	---	15:36
		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		17:37	23:44	41:21
		Tube Clamp		14:58	---	14:58
		Ink system Assy		16:09	---	16:09
		Gear Cover		16:33	---	16:33
		Pickup Assy 1st		17:56	---	17:56
		Cover Cartridge		14:50	---	14:50
		Guide IC		15:08	---	15:08
		Power Supply Unit		16:00	3:26	19:26
		Relay Board FFC Guide		15:27	---	15:27
		Holder Cam Assy		16:04	---	16:04
		Waste Ink Tray Cover		16:05	---	16:05
		Relay Board Assy		16:47	---	16:47
		Relay Board CSIC Terminal		17:10	---	17:10
		Relay Board		17:03	---	17:03
	Disassembly/Reassembly		Overview			26

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