Epson WF-M5690, WF-M5190 Service Manual
SERVICE MANUAL
Mono Inkjet Printer
Epson WF-M5690 series/ Epson WF-M5190 series
CONFIDENTIAL
SEMF14-011
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 r egistered
trademarks of their respective owners. EPSON disclaims any and all rights in those marks.
Copyright 2018 SEIKO EPSON CORPORATION
P 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 charge 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 handing 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 board, 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
ASF 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 provide 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
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 4 “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 February 20, 2014 First Release
B May 9, 2018 Revise the Contents
Chapter 1
Fatal error code has been added in "1.1.3 Fatal Error (p14)".
Chapter 2
“Tube Clip” has been added in "2.1.1 Tools (p24)".
Consumption information of maintenance box has been added to"2.2.1 Caution when
Replacing the Printhead/Ink Supply Unit (p28)".
" Repair operation of Print Head and Ink Supply Unit (When the Printer cannot perform
the Ink Pressure Release by fatal error) (p31)" has been added.
" Ink System Supply Assy (Ink Supply Unit w/ Printhead) (p45)" has been added.
Caution of when replacing the main board is added in " Main Board / Main Board
Shield Plate Lower Assy (p43)"
Procedure of when printer is not able to perform the Ink Pressure Release is added in "
Ink Supply Unit (p45) ".
Procedure of when printer is not able to perform the Ink Pressure Release is added in "
Printhead (p46)".
Chapter 3
"Table 3-1 Required Adjustment List (Mechanism adjustment) (p55)"
changing the following items.
• Delete the Printer mechanism.
• Priority of adjustment items has been correct.
"Table 3-2 Required Adjustment List (Adjustment using the Adjustment Program) (1/2)
(p57)", "Table 3-3 Required Adjustment List (Adjustment using the Adjustment
Program) (2/2) (p59)" changing the following items.
• Delete the Printer mechanism.
• Priority of adjustment items has been correct.
Part code of Teflon tape is added in "3.2.3 PG Adjustment (p65)".
Made change the description in "3.2.3.2 PG Adjustment procedure (p69)".
Chapter 4
Delete the "4.3 Initialization of Admin Passwo rd (p 92)".
Confidential
Epson WF-M5690/M5190 series Revision B
Contents
Chapter 1 Troubleshooting
1.1 Troubleshooting....................................................................................................................................................... 10
1.1.1 Troubleshooting Workflow ............................................................................................................................ 10
1.1.2 Power-On Sequence ....................................................................................................................................... 12
1.1.3 Fatal Error....................................................................................................................................................... 14
1.1.4 Status sheet .................................... .......................................................................... ....................................... 20
1.1.4.1 Start method of Maintenance SP Mode................................................................................................. 20
1.1.4.2 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 Caution when Replacing the Printhead/Ink Supply Unit................................................................................ 28
2.2.2 Parts/Units Need to be Removed in Advance ................................................................................................ 32
2.2.3 Disassembly Flowchart................................................................................................................................... 33
2.2.3.1 Parts/Units whose Configuration is Different between Models in the Flowchart ................................. 33
2.2.3.2 Exterior Parts ......................................................................................................................................... 35
2.2.3.3 Printer Mechanism.................................... ............................................................................................. 37
2.2.3.4 Printhead/Ink Supply Unit ..................................................................................................................... 39
2.2.3.5 2nd Cassette Unit ................................................................................................................................... 40
2.3 Detailed Disassembly/Reassembly Procedure for each Part/Unit........................................................................... 41
2.4 Routing FFCs/Cables .............................................................................................................................................. 49
Chapter 3 Adjustment
3.1 Required Adjustments ............................................................................................................................................. 54
3.2 D etails of Adjustments ............................................................................................................................................ 62
3.2.1 PF Timing Belt Tension Check ...................................................................................................................... 62
3.2.2 Rear ASF Timing Belt Tension Check........................................................................................................... 63
3.2.3 PG Adjustment ............................................................................................................................................... 65
3.2.3.1 Preparation ............................................................................................................................................. 66
3.2.3.2 PG Adjustment procedure...................................................................................................................... 69
3.2.4 Checking the Platen Gap ................................................................................................................................ 73
3.2.5 Ink Leak Check............................................................................................................................................... 74
3.2.6 ..................................................... Head Angular Mechanism adjustment. 80
3.2.6.1 P reparation of the Head Angular Adjustment ........................................................................................ 80
3.2.6.2 Adjustment Procedure.................................... ........................................................................................ 82
3.2.7 Touch Panel Adjustment (WF-M5690 series only) ........................................................................................ 86
Chapter 4 Maintenance
4.1 O verview ................................................................................................................................................................. 90
4.1.1 Cleaning.......................................................................................................................................................... 90
4.1.2 Lubrication...................................................................................................................................................... 90
7
Confidential
Epson WF-M5690/M5190 series Revision B
4.2 Lubrication Points and Instruction........................................ ........................................ .......................................... 91
Chapter 5 Appendix
5.1 Connector Diagram ................................................................................................................................................. 95
8
Confidential
CHAPTER 1
TROUBLESHOOTING
Confidential
Epson WF-M5690/M5190 series Revision B
Finish
*
Turn on the printer
2
What is returned reason?
Copy an image
Copy an image by ADF
Start
ADF/Scanner
failure
Printer failure only
Yes
Yes
Yes
No
Does power-on
sequence start?
Is power-on sequence
finished without error?
Yes
No
Is ADF operation
finished without
trouble?
Standby condition
Is scanning operation
finished without
trouble?
ADF failure?
1
No
Is the print result OK?
Yes
Yes
Is printing complete
without an error?
4
No
3
No
5
No
6
No
*: In case of “Not Trouble Found”, check fatal error code.
(p11)
(p11)
(p11)
(p11)
(p11)
(p11)
Print a nozzle check pattern
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-M5690/M5190 series
WF-M5190 series are not equipped with the Scanner / ADF unit, therefore, the
troubleshooting related to the Scanner / ADF unit is not applied.
If the reason for the return is evident, first check the phenomenon user claims recurs,
then proceed to the troubleshooting.
Figure 1-1. Troubleshooting Workflow (1)
Troubleshooting Troubleshooting 10
Confidential
Epson WF-M5690/M5190 series Revision B
The power-on sequence
does not start (p10)
No power
[Presumable Cause]
• Damage to Power Supply Unit
• Damage to Main Board
[Remedy]
• Replace Power Supply Unit
• Replace Main Board
*1
Error is indicated during printing nozzle check pattern. (p10)
Error is indicated during power-on
21
sequence (p10)
Fatal error
See "1.1.2Power-On Sequence
(p12)".
Maintenance box full
[Occurrence Condition]
This error occurs when
maintenance counter in
Maintenance Box exceeds the
specified value.
[Occurrence Timing]
• At power-on
• When printing starts
• Cleaning
• When closing the Front Cover
[Remedy]
• Replace Maintenance Box
Maintenance box CSIC error
[Occurrence Condition]
This error occurs when
Maintenance Box data is incorrect
or cannot be recognized correctly.
[Occurrence Timing]
•At power-on
• When printing starts
•Cleaning
• When closing the Front Cover
[Remedy]
• Remove and reinstall
Maintenance Box
• Replace Maintenance Box
• Replace CSIC terminal
• Replace Maintenance Box FFC
• Replace Main Board
No maintenance box error
[Occurrence Condition]
This error occurs when
Maintenance Box is not installed.
[Occurrence Timing]
• At power-on
• When printing starts
• Cleaning
• When closing the Front Cover
[Remedy]
• Install Maintenance Box
Ink end error
[Occurrence Condition]
This error occurs when ink in Ink
Cartridge is empty.
[Occurrence Timing]
• At power-on
• When printing starts
• Cleaning
• When closing the Front Cover
• During printing
[Remedy]
• Replace Ink Cartridge
[Note]
If this error occurs during
printing, the paper will be ejected
automatically after the current
page is printed. If the error occurs
during face printing in the
automatic duplex printing, the
current page will be printed but
printing stops before reversing the
paper.
Problems related to print result or during printing (p10)
Ink cartridge detection error
[Occurrence Condition]
This error occurs when ink
cartridge data is incorrect or Ink
Cartridge is not recognized
correctly.
[Occurrence Timing]
• At power-on
• When printing starts
• Cleaning
• When closing the Front Cover
• During printing
[Remedy]
• Remove and reinstall Ink
Cartridges
• Replace Ink Cartridge
• Replace CSIC terminal
• Replace CSIC Board
• Replace CSIC FFC
• Replace Main Board
No ink cartridge error
[Occurrence Condition]
This error occurs when Ink
Cartridge is not installed.
[Occurrence Timing]
• At power-on
• When printing starts
• Cleaning
• When closing the Front Cover
• During printing
[Remedy]
• Install Ink Cartridge
Front cover open error
[Occurrence Condition]
This error occurs when Front
Cover is open.
[Occurrence Timing]
• At power-on
• During printing
[Remedy]
• Close Front Cover
• Replace Front Housing Assy
• Replace Cover Open Sensor
• Replace Main Board
Scanning cannot be
performed
5 643
successfully (p10)
Paper jam error
See "Paper jam error" which
occurs during nozzle check
pattern printing.
ADF does not
operate
normally (p10)
Paper jam error
[Occurrence Condition]
This error occurs when the top/
bottom of paper cannot be
detected by PE Sensor or PW
Sensor within the specified steps
even if the paper has been fed
correctly.
[Occurrence Timing]
• At power-on
• During feeding paper
• During ejecting paper
• During duplex printing
• When closing the Front Cover
[Remedy]
1 Press the “Start” button to eject
jammed paper.
• If succeeded
Print starts if there is printing
data.
• If failed
The paper jam error occurs
again.
2 If failed at Step 1, open the
Front Cover and remove the
Duplex Unit, and then remove
jammed paper.
3 Press the “Start” button again.
• If succeeded
Paper is fed if there is
printing data.
• If failed
The paper jam error occurs
again.
4 Check the following if failed in
Step 3.
• Foreign object
• Detached parts
• PE Sensor Lever
•PE Sensor
•PW Sensor
• Main Board
• Paper Stopper Assy
Paper out error
[Occurrence Condition]
This error occurs when the top of
paper cannot be detected by PE
Sensor within the specified steps
even if the paper has been fed
correctly. (No paper / paper
loading failed / paper is fed at
slant)
[Occurrence Timing]
• During feeding paper
[Remedy]
1 Set paper to 1st cassette or
Rear MP Tray, and press the
“Start” button.
2 If a paper stops before reaching
PE Sensor, remove it and
check the paper condition.
3 A)If paper has no damage, set
edge guide correctly after
setting paper in 1st cassette
or Rear MP Tray, and
perform Step 2 again.
B) If paper is damaged, check
for foreign materials /
detached parts / deformed
parts in the paper path.
4 If the problem is not solved by
3-A) & 3-B), check the
following.
• Foreign object
• Detached parts
• Movement of Trigger Lever
of Rear ASF
• Tension of ASF Timing Belt
• Surface condition of LD
Roller of Rear ASF, Pickup
Roller and paper feed rollers
in Duplex Unit
• PE Sensor Lever
•PE Sensor
• Main Board
•PF Motor
• Cassette Assy
• Paper Stopper Assy
Multi-feed error
[Occurrence Condition]
This error occurs on the following
case.
• A paper is ejected without
printing during paper loading
operation.
• Actual paper length is longer
than theoretical one.
[Occurrence Timing]
• During feeding paper
• During loading paper
• During ejecting paper
[Remedy]
• Replace PE Sensor Lever
• Replace PE Sensor
• Replace PW Sensor
• Replace Main Board
• Perform the operation check
and replace Paper Stopper
Assy if necessary
*2
Paper length mismatch error
for duplex printing
[Occurrence Condition]
This error occurs when actual
paper size is not matched to
theoretical one (both shorter and
longer).
[Occurrence Timing]
• During auto duplex printing
• During receiving FAX data
[Remedy]
• Replace PE Sensor Lever
• Replace PE Sensor
• Replace PW Sensor
• Replace Main Board
No paper cassette error
[Occurrence Condition]
This error occurs when Cassette
Assy 1st cannot be detected. (The
error occurs to the Cassette Assy
*3
2nd
in the same way.)
[Occurrence Timing]
• During feeding paper
*3
[Remedy]
• Check connection for Paper
Stopper Lever Sensor cable
• Replace Paper Stopper Lever
Sensor
Printing failure
[Symptoms]
• Printing failure
• Contamination on paper
• Dot missing
• Paper is ejected without printing
[Presumable Cause]
• Incorrect setting for driver/
panel
• Contamination on CR Scale
• Contamination on Printhead
Cover
• Printhead failure
• Dot missing of Printhead
• Contamination on Cap or
Wiper of Ink System Unit
• Ink System Unit failure
• PG is narrow
• Damage on PE Sensor Lever
• Damage on PE Sensor
• Damage on APG related parts
of Carriage Assy
• APG Lever operation failure
• Connection failure between
Decompress Pump Tube and
Ink Supply Unit
• Twist or blockade of
Decompress Pump Tube
• Decompress Pump Unit
operation failure
• Ink Supply Unit operation failure
• Connection failure between
Ink Supply Tube and Printhead
[Remedy]
• Check driver or panel setting
• Replace CR Scale
• Clean Printhead Cover
• Perform cleaning
• Replace Ink Cartridge
• Replace Printhead
• Clean rubber part of Cap
• Replace Ink System Unit
• Adjust PG again
• Replace Printer Mechanism
• Replace PE Sensor Lever
• Replace PE Sensor
• Replace Carriage Assy
• Check the attachment
condition of APG Lever
• Check the condition of
Decompress Pump Tube
• Replace Decompress Pump Unit
• Replace Ink Supply Unit
• Check the condition of the joint
section of Ink Supply Tube
Paper feeding failure
[Presumable Cause]
• Use of 3rd party media
• Inappropriate position of edge
guide
• Foreign object
• Detached parts
• Contamination on LD Roller of
Rear ASF / Retard Roller
• Contamination on Pickup
Roller
• Contamination on paper feed
rollers in Duplex Unit
• Damage to Cassette Assy
• Rear ASF Timing Belt tension
failure
• Damage to Rear ASF Assy
[Remedy]
• Use EPSON-recommended
paper
• Set edge guide correctly
• Remove foreign material
• Re-install parts
• Replace Pickup Assy
• Replace Cassette Assy
• Replace Printer Mechanism
• Replace Rear ASF Assy
Note *1: If the printer can turn on but turns off right away, the protection circuit may cut off the power due
Abnormal noise
[Presumable Cause]
• Foreign object
• Insufficient grease
• Damage to gears
[Remedy]
• Remove foreign material
• Apply an appropriate amount
of grease
• Replace gears
to an error such as a circuit failure.
*2: Only for manual duplex printing
*3: WF-M5690 series only
Scanner failure
[Presumable Cause]
• Contamination on document
glass
• Contamination on Document
Pad
• CIS bonding failure
• CIS failure
• Damage to Scanner Motor
[Remedy]
• Clean document glass
• Clean Document Pad
• Replace Document Pad
• Replace CIS Unit
• Replace Scanner Motor
ADF failure
[Symptoms]
• Paper is not fed
• Multi-feed
• Paper jam
• Skewed document
[Presumable Cause]
• Deterioration of Pickup Roller
• Deterioration of ADF Pad
Assy
• Damage to gears
•Damage to ADF Motor
• Contamination on document
glass
• Foreign object
• Damage to ADF Cover Assy
• Deterioration of Paper Eject
Roller
• Damage to ADF Document
Sensor / ADF PE Sensor
[Remedy]
• Replace ADF Cover Assy
• Replace ADF Pad Assy
• Clean document glass
• Remove foreign material
• Replace ADF Unit
Troubleshooting Troubleshooting Workflow 11
Confidential
Epson WF-M5690/M5190 series Revision B
0
0
0
0
0
0
80 0
HP
0
0
0
1.1.2 Power-On Sequence
This section describes the power-on sequences for this product. The preconditions are as follows.
Normal power-on sequence
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 Ink System and the CR Lock is engaged normally.
The carriage is locked by the CR lock.
PG position is set to PG1.
Table 1-1. Power-On Sequence
Operation
1. Printhead initialization and fuse inspection
1-1.Initializes the Printhead, and checks the fuse on the printer
control circuit board.
2. Seeking the home position
2-1.The carriage moves to the 0-digit side slowly and confirms it
touches the Right Frame.
2-2.Regards the position where the carriage touches the Right Frame
as the position of the specified steps from the home position, and
set it as the origin position.
2-3.The carriage slowly moves the CR lock set position.
2-4.The PF Motor rotates clockwise and releases the CR lock.
2-5.The PF Motor rotates counterclockwise and sets the CR lock.
Movement of
Components
80
80
80
80
80
80
HP
HP
HP
HP
HP
HP
Front ASF drive
condition
OFF ---
↓
↓
↓
↓
↓
Decompress
motor
---
---
---
---
---
2-6.The carriage moves to the 80-digit side slowly and confirms it
touches the CR lock.
---
---
---
2-7.The carriage returns to its home position.
2-8.The PF Motor rotates clockwise and releases the CR lock.
3. Switching front ASF drive
3-1.The carriage moves to the 80-digit side slowly up to position
where the Front ASF turn on.
↓
80
HP
↓
80
HP
↓
80
HP
ON ---
Troubleshooting 12
Confidential
Epson WF-M5690/M5190 series Revision B
0
0
0
0
0
0
0
0
0
0
0
Table 1-1. Power-On Sequence
Operation
3-2.The carriage moves to the 0-digit side slowly up to the position
where the Front ASF turn off.
3-3.The carriage moves to the 80-digit side slowly and passes by the
CR lock.
4. PF initialization
4-1.The PF Motor rotates clockwise for approximately one second.
4-2.The PE sensor checks if paper exists, and the PF Motor rotates
clockwise for approximately 0.5 seconds.
5. Low temperature operation sequence
5-1.The carriage moves back and forth between CR lock and the left
Frame two times.
6. Checking waste ink overflow
6-1.Reads out the waste ink counter value of the Maintenance Box
to check waste ink overflow.
Movement of
Components
80
80
80
80
80
80
HP
HP
HP
HP
HP
HP
Front ASF drive
condition
OFF ---
↓
↓
↓
↓
↓
Decompress
motor
---
---
---
---
---
7. Detecting ink cartridge and initializing ink system
7-1.The carriage moves slowly to the ink detection position.
80
HP
↓
7-2.The Decompress Motor is driven and Diaphragm Pump sucks
the ink in the ink cartridges.
80
HP
↓
Decompress
and vent to
atmosphere
7-3.While monitoring the ink end sensor, the Decompress Motor is
driven again and the Diaphragm Pump sucks the ink.
80
HP
↓
Decompress
and vent to
atmosphere
7-4.Detects the ink remaining.
80
HP
↓
7-5.The carriage returns to its home position.
80
HP
↓
Note *1: On the premise on this table, PG does not change and the Rear ASF does not operate during the sequence.
*2: Executes when the detected temperature is under 5 ℃ (41)by the thermistor on the Printhead.
*3: The Printhead is capped with the Cap of the Ink System but the Carriage is not locked by the CR lock in order to shorten the
time before printing starts. The Carriage is locked when the printer enters the power saving mode without any operation after it
is turned on.
---
---
---
Troubleshooting 13
Confidential
Epson WF-M5690/M5190 series Revision B
1.1.3 Fatal Error
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-M5190 series because this
model does not have ADF/Scanner unit.
Table 1-2. Fatal Error List
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 ADF PID acceleration lock detection error
0x05 ADF PID excess load error
0x06 ADF PID driving time error • Main Board failure
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 error • Main Board failure
0x10 HP detection error
0x11 Contact detection distance exceeded error
0x12
0x13
0x14 Measurement failure error • Scanner drive mechanism was overloaded.
0x20 LED light 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 f ailu re)
• 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 f ailu re)
• 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 (Includin g 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
• Main Board failure
Troubleshooting 14
Confidential
Epson WF-M5690/M5190 series Revision B
Table 1-2. Fatal Error List
Error type
ADF/
Scanner
PDL 0x5F Main ROM and μSD ROM matching error • Mismatch the Main ROM FW version and μSD ROM FW version.
Error
code
0x30 Option error • Main Board failure
0x36 Paper jam error
0x41 FB PID excess speed error
0x42 FB PID reverse error
0x43 FB PID lock error • ADF Encoder failure (contaminated/detached scale, Encoder Board
0x44 FB PID acceleration lock
0x45 FB PID excess load error
0x46 FB PID driving time error • Main Board failure
0x49 FB BS+ excess sped error
0x4A FB BS+ reverse error
0x4B FB BS+ lock error • ADF Encoder failure (contaminated/detached scale, Encoder Board
0x4D FB BS+ excess load error
0x4E FB BS+ driving time error • Main Board failure
0x51 Automatic judgement fatal error 1
0x52 Automatic judgement fatal error 2
0x53 Automatic judgement fatal error 3
0x54 Automatic judgement fatal error 4
0x55 Automatic judgement fatal error 5
Error name Possible cause
• Paper jam
• Foreign object
• ADF Encoder failure (contaminated/detached scale, Encoder Board
failure)
• Motor driver failure (Main Board f ailu re)
• 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 f ailu re)
• ADF Encoder failure (contaminated/detached scale, Encoder Board
failure)
failure)
• ADF Motor failure
• ADF drive mechanism overload (assembling failure, lubrication failure)
• Cable disconnection
---*
Troubleshooting 15
Confidential
Epson WF-M5690/M5190 series Revision B
Table 1-2. Fatal Error List
Error type
Printer
Error
code
0x60 HP error
0x61 Deadlock avoidance error
0x62 Impossible contact detection error
0x6B PF runaway error
0x7F Inspection mode error ---*
0x8A Ink Leak detect error
0x8D Factor error other than printer device
0x8E Driver mismatch error An unsupported driver was used.
0x8F EEPROM verify error (by command) ---*
0x90 PW Sensor failure error • PW sensor failure
0x91 PW Sensor detected foreign object error
0x92 Hot plug disconnection paper jam error
0x93 PE Sensor error
Error name Possible cause
• Paper jam
• Foreign object
• Deformation of the Main Frame
• PF Encoder failure (contaminated/detached scale, Encoder Board failure)
• Motor drive error
• Occur th e Ink Leak at ink supply route .
• Printhead failure
• Ink Supply Unit 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
• Main Board failure
• Foreign object
• 2nd Cassette Unit has been removed during feeding (when the ASF
Motor is operating).
• Contact failure of the connector which contacts 2nd Cassette Unit and the
printer.
• PE Sensor failure
• Main Board failure
Troubleshooting 16
Confidential
Epson WF-M5690/M5190 series Revision B
Table 1-2. Fatal Error List
Error type
Printer
Error
code
0x94 PW Sensor light value adjust error
0x96 Decompress pump motor driving time error
0x97 Head drive circuit VBS over-voltage error
0x98 HCS error
0x99 IES process check error ---*
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 ---*
0xB8 CRCM access error
0xB9 -
0xBA
0xBD -
0xC2
0xC3 Ink device error
0xC4 -
0xCF
0xD1 ASF PID excess load error
0xD2 ASF PID excess speed error
0xD3 ASF PID reverse error
0xD4 ASF PID lock error
Ink device error
CRCM access error
CRCM access error
Error name Possible cause
• PW Sensor failure
• Main Board failure
• Decompress pump motor failure
• Main Board failure
• Head FFC failure
• Main Board failure
• Printhead failure
• Head FFC failure
• Main Board failure
• Main Board failure
• Printhead failure
• Main Board failure
• CR Contact Module failure
• CRCM FFC disconnection
• Main Board failure
• Ink cartridge failure
• CSIC Terminal failure
• CR Contact Module failure
• Main Board failure
• CR Contact Module failure
• CRCM FFC disconnection
• Main Board failure
• Ink cartridge failure
• CSIC Terminal failure
• CR Contact Module failure
• Main Board failure
• CR Contact Module failure
• CRCM FFC disconnection
• 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 f ailu re)
• 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
Troubleshooting 17
Confidential
Epson WF-M5690/M5190 series Revision B
Table 1-2. Fatal Error List
Error type
Printer
Error
code
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
0xEE CR PID driving time error
0xEF CR load position driving time error
0xF1 PF PID excess load error
Error name Possible cause
• 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 f ailu re)
• ASF Encoder failure (contaminated/detached scale, Encoder Board
failure)
• ASF Motor failure
• Pickup Roller (2nd cassette) driven 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 f ailu re)
• 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 f ailu re)
• 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 f ailu re)
• 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
• 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
Troubleshooting 18
Confidential
Epson WF-M5690/M5190 series Revision B
Table 1-2. Fatal Error List
Error type
Printer
Error
code
0xF2 PF PID excess speed error
0xF3 PF PID reverse error
0xF4 PF PID lock error
0xF6 PF PID Torque limit 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
• PF Encoder failure (contaminated/detached scale, Encoder Board failure)
• Motor driver failure (Main Board f ailu re)
• 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 driver mechanism overload (paper jam/foreign object)
• Cable disconnection
• PF Encoder failure (contaminated/detached scale, Encoder Board failure)
• PF Motor failure
• PF driver mechanism overload (paper jam/foreign object)
• Improper tension of the PF Timing Belt
• Tooth skip 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
• PF Encoder failure (contaminated/detached scale, Encoder Board failure)
• Motor driver failure (Main Board f ailu re)
• 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 driver mechanism overload (paper jam/foreign object)
• Cable disconnection
• Main Board failure
.
Troubleshooting 19
Confidential
Epson WF-M5690/M5190 series Revision B
Power on button
No.4 button No.6 button
Power on button
Left button Right button
Maintenance SP Mode
1. Status Sheet Print mode
Inspection Mode
1. STSheet Mode
[WF-M5690 series]
[WF-M5190 series]
Run : Color / Select : [3][6]
1.1.4 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
Maintenance SP Mode.
1.1.4.1 Start method of Maintenance SP Mode
1. From a power off status, push the following buttons until the message is displayed on LCD.
WF-M5690 series
WF-M5190 series
2. Select the following items from the Inspection menu.
WF-M5690 series : “1. Status Sheet Print Mode”
WF-M5190 series : “1. STSheet Mode”
3. The product starts as usual.
Troubleshooting 20
Confidential
Epson WF-M5690/M5190 series Revision B
4. Print the status sheets.
1.1.4.2 Description of Status sheet (Non-disclosed information to user)
Supply Status sheet
Figure 1-1. Supply Status Sheet (Non-disclosed information to user)
Item Content Item Content
Consumable information <Ink Cartridge>
Ink residual quantity Residual quantity information of the
Ink Cartridge.
Consumable information <Maintenance Box>
Maintenance Box
residual quantity
Residual quantity information of the
Maintenance Box.
Troubleshooting 21
Confidential
Epson WF-M5690/M5190 series Revision B
Usage History Sheet
Figure 1-2. Usage History Sheet (Non-disclosed information to user)
Item Content Item Content
Number of Sheets Loaded
Casette 1 Number of sheets loaded from 1st
cassette.
Rear Paper Feed Number of sheets loaded from rear
paper feed tray.
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 sheets loaded from 2nd
cassette.
Scanner Glass Number of sheets scanned from
Scanner Glass.
Maintenance Box Number of replacement of
Maintenance Box.
Troubleshooting 22
Confidential
CHAPTER 2
DISASSEMBLY/REASSEMBLY
Confidential
Epson WF-M5690/M5190 series Revision B
2.1 Overview
In this manual, the product name is abbreviated to such as “WP-4510 series”, however, the
last digit of the actual name may differ. Identify your product with the first three digits and
refer to the appropriate sections in this manual.
This chapter describes procedures for disassembling the main parts/units of WP-M5690/M5190 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 (p41)".
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 --Acetate tape --- 1003963
Tube Clip 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 Quantity EPSON Part Code
Spacer (5 mm) 1 --Ink Leak Measurement Jig 1 1650703
Ink Leak Check Cartridge 1 1565785
Disassembly/Reassembly Overview 24
Confidential
Epson WF-M5690/M5190 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 base on the MTTR result measured
using a prototype.
The underlined parts/units are supplied as After Service parts.
Standard Operation Time for servicing WF-M5690 series : See Table 2-1
Standard Operation Time for servicing WF-M5190 series : See Table 2-2
Table 2-1. Standard Operation Time (WF-M5690 series)
Time (second)
Parts/Unit
Panel Unit
Metal Plate
(Including Paper Stopper Assy)
Pickup Assy 1st
Paper Stopper Assy
Cover ASF Assy 10 0 10 PF Encoder FFC
Cover ASF Front
Cover ASF Rear
ADF Pad Assy
Housing Rear Assy 49 0 49 Power Supply Unit
Housing Rear
Paper Support
FAX Cover
Speaker/Speaker Holder
ADF/Scanner Unit 314 135 449 Printhead
ADF Unit
ADF Rear Cover
ADF Cover Assy
ADF Cover Housing Upper 710 0 710 CR Motor 1164 30 1194
LD Cover 726 0 726 Maintenance Box Ink Eject Joint 775 0 775
LD Shaft 730 0 730 Ink System Unit
Extension Spring 758 0 758 Option Connecter
ADF LD Assy
ADF Document Support Assy
Scanner Unit
Front Housing Assy
Stacker Assy
Middle Housing
Main Board Unit 725 1108 1833 Compound Gear 16,10.6 839 0 839
Main Board Cable Holder 737 0 737 CR Scale/Extension Spring 2.03
Shield Plate Holder 772 0 772 Front Frame Assy 1476 701 2177
Main Board Shield plate Upper Assy 972 0 972 Star Wheel Assy 1398 91 1489
Repla
ceme
Adjus
tment
nt
60 25 85 Rear ASF Guide Upper Assy 552 0 552
80 0 80 CSIC FFC 488 0 448
93 0 93 Metal Plate Left 515 0 515
31 0 31 PF Encoder 529 0 529
14 0 14 PF Tension Stopper Holder 546 15 561
14 0 14 PF Timing Belt 561 15 576
10 0 10 Decompress Pump Unit 560 0 560
64 0 64 CR Cover 455 0 455
64 0 64 Ink Supply unit Grounding Plate 481 0 481
81 0 81 Ink System Supply Assy 739 1777 2516
86 0 86 Ink Supply Unit 693 1088 1781
595 135 730 Fasten Plate Center 966 0 966
628 0 628 Fasten Plate Left 1073 0 1073
641 0 641 Driven Pulley Assy 1115 15 1130
803 0 803 Shaft Drive Pickup 947 0 947
651 0 651 ASF Drive Change lever Assy 837 0 837
595 135 730 ASF Drive Change Lever Holder 839 0 839
374 0 374 Spur Gear 11.2 839 0 839
386 0 386 Extension Spring 0.63 839 0 839
441 0 441 Spur Gear 11.2 839 0 839
Total
Parts/Unit
Time (second)
Repla
ceme
1363 0 1363
Adjus
tment
nt
552 0 552
606 187 793
648 2565 3213
799 0 799
829 0 829
Total
Disassembly/Reassembly Overview 25
Confidential
Epson WF-M5690/M5190 series Revision B
Table 2-1. Standard Operation Time (WF-M5690 series)
Time (second)
Parts/Unit
Interface Board Assy 1029 0 1029 EJ Roller 1545 352 1997
Interface Board Shield Plate
Upper
Interface Board 1076 0 1076 Main Frame Mounting Plate 1599 0 1599
Interface Board Shield Plate
Lower
Main Board Shield Plate Upper 1029 0 1029
Read OK 1033 370 1403 CR Guide Frame 2090 1193 3283
Main Board
Read NG 1033 1108 2141 Carriage Assy
Main Board Shield Plate Lower 1033 0 1033 Main Frame Assy 2332 1485 3817
Wi-Fi Board
Rear ASF Assy
Repla
ceme
1059 0 1059 Frame Base Assy
1076 0 1076 Support Plate Right/Left 1630 250 1880
Adjus
tment
nt
463 0 463 Paper Guide Upper Assy 2440 526 2966
515 140 655 PE Lever Holder Assy 2390 0 2390
Total
CR Guide Frame
(Including Carriage Assy)
Parts/Unit
Time (second)
Repla
ceme
1574 1596 3170
2082 1193 3275
2090 1438 3528
Adjus
tment
nt
Total
Disassembly/Reassembly Overview 26
Confidential
Epson WF-M5690/M5190 series Revision B
Table 2-2. Standard Operation Time (WF-M5190 serie s)
Time (second)
Parts/Units
Panel Unit 19 0 19 Power Supply Unit 470 187 657
Metal Plate
(Including Paper Support Assy)
Pickup Assy 1st
Paper Stopper Assy
Cover ASF Assy 10 0 10 Ink Supply Unit
Cover ASF Front
Cover ASF Rear
Housing Rear Assy 49 0 49 F asten Plate left 937 0 937
Housing Rear
Paper Support
USB Cover
Housing Upper
Front Housing Assy
Middle Housing
Stacker Assy
Main Board Unit 589 1108 1697 ASF Drive Change Lever Holder 703 0 703
Main Board Cable Holder 601 0 601 Spur Gear 11.2 703 0 703
Shield Plate Holder 636 0 636 Extension Spring 0.63 703 0 703
Main Board Shield Plate 818 0 818 Spur Gear 11.2 703 0 703
Read OK 862 370 1232 Compound Gear 16,10.4 703 0 703
Main Board
Read NG 862 1108 1970 CR Scale/Extension Spring 2.03
Main Board Shield Plate Lower 862 0 862 Front Frame Assy 1189 701 1890
Wi-Fi Board
Rear ASF Assy
Rear ASF Guide Upper Assy
CSIC FFC
Metal Plate Left 379 0 379 Support Plate Right/Left 1343 250 1593
PF Encoder 393 0 393
PF Encoder FFC 406 0 406 CR Guide Frame 1739 1193 2932
PF Tension Stopper Holder 410 15 425 Carriage Assy
PF Timing Belt 425 15 440 Main Frame Assy 1981 1485 3466
Decompress pump Unit
Repla
ceme
Adjus
tment
nt
80 0 80 CR Cover 319 0 319
93 0 93 Ink Supply Unit Grounding Plate 345 0 345
31 0 31 Ink System Supply Assy 603 1777 2380
14 0 14 Printhead 554 2565 3119
14 0 14 Fasten Plate Center 830 0 830
64 0 64 Driven Pulley Assy 979 15 979
64 0 64 CR Motor 1028 30 1058
81 0 81 Maintenance Box Ink Eject Joint 639 0 639
97 0 97 Ink System Unit 663 0 663
157 0 157 Option Connecter 693 0 693
305 0 305 Shaft Drive Pickup 811 0 811
169 0 169 ASF Drive Change Lever Assy 701 0 701
327 0 327 Star Wheel Assy 1111 91 1202
379 140 519 EJ Roller 1227 352 1579
416 0 416 Frame Base Assy 1287 1596 2883
352 0 352 Main Frame Mounting plate 1312 0 1312
424 0 424 Paper Guide Upper Assy 2089 526 2615
Total
CR Guide Frame Assy
(Including Carriage Assy)
PE Lever Holder Assy 2089 0 2089
Pats/Units
Time (second)
Repla
ceme
Adjus
tment
nt
559 1088 1647
1076 0 1076
1731 1193 2924
1739 1438 3177
Total
Disassembly/Reassembly Overview 27
Confidential
Epson WF-M5690/M5190 series Revision B
Joint section of the Printhead
and Ink Supply Unit
Printhead
Ink tubes
Carriage Assy
2.2 Disassembly/Reassembly Procedures
2.2.1 Caution when Replacing the Printhead/Ink Supply Unit
For stable ink supply, this product employs a mechanism where the ink in the ink path is pressurized even the power is
off. Therefore, if the joint section of the printhead and the Ink Supply Unit is simply disconnected, the ink in the ink
tube will spill over.
Figure 2-1. Joint Section of the Printhead and Ink Supply Unit
To prevent this from happening, before separating the Printhead and Ink Supply Unit to replace the Printhead or the
Ink Supply Unit, make sure to release the pressure inside the ink path using the Adjustment Program. The following
explains the procedure.
This is not necessary when replacing the Printhead and Ink Supply Unit together.
Approximately two minutes are required to release the applied pressure.
The ink in the ink path is pressurized in the power-off sequence again, therefore, make
sure not to turn the power off by the power button after the applied pressure is released.
Tools
Ink Cartridges Do not use user’s ink cartridges since the ink in the ink cartridges is consumed when releasing the
pressure. Prepare ink cartridges supplied as consumables for this procedure. (Hereafter, an ink cartridge for this purpose
is called as an “ink cartridge (for service use)”.
Maintenance box
Do not use user’s maintenance box since the ink the ink path flows to the maintenance box when releasing the pressure.
Prepare maintenance box supplied as a consumable for this procedure. (Hereafter, a maintenance box for this purpose is
called as a “maintenance box (for service use)”.
Make sure to use the same service Ink cartridge and Maintenance Box from “ Ink
Pressure release” to “Initial Charge”.
Before performing Ink Pressure Release, confirm the proportion of remaining capacity
of the Maintenance Box is 30% or more.
Procedure
1. Remove the ink cartridges and maintenance box in the returned unit, and install the ink cartridges
and maintenance box
(for service use).
(for service use)
2. Connect the printer and the PC installed the Adjustment Program with the USB cable, and turn the power on.
3. Start the Adjustment Program, and select the “Ink Pressure Release” from the menu.
4. Click “Execute” in the displayed screen to release the applied pressure.
5. When the completion message appears, unplug the computer power cable.
Afterward, remove the parts referring to "2.2.2 Parts/Units Need to be Removed in Advance (p32)" and replace them
referring to "2.2.3 Disassembly Flowchart (p33)".
Disassembly/Reassembly Disassembly/Reassembly Procedures 28
Confidential
Epson WF-M5690/M5190 series Revision B
Buffer
Top view
Buffer
Top view
Buffer
Before the ink pressure release
(The Buffer is inflated condition)
After the ink pressure release
(The Buffer is deflated condition)
Ink Supply Unit
Print head
When separating the Printhead and the Ink Supply Unit, make sure to perform "3.2.5
Ink Leak Check (p74)" to check if ink is leaking.
After disconnecting the Printhead and the Ink Supply Unit, ink may spill over even if the
pressure is released. Therefore, be careful not to contaminate the surroundings.
Make sure that the buffer is being deflated before the print head is removed, as shown
below.
If the buffer is inflated, make sure to perform the “Ink pressure release” again, because
the ink is not discharged condition.
Figure 2-2. The buffer condition before and after performing the ink pressure release
Printer cannot perform Ink Pressure Release when Printer is error condition.
Therefore, when Printer cannot perform Ink Press ure Release by fatal error, Perform
the repair operation by the "Repair operation of Print Head and Ink Supply Unit (When
the Printer cannot perform the Ink Pressure Release by fatal error) (p31)".
Disassembly/Reassembly Disassembly/Reassembly Procedures 29
Confidential
Loading...