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 2014 SEIKO EPSON CORPORATION
Printer CS Quality Assurance Department
Confidential
Safety Precautions
All safety procedures described here shall be strictly adhered to by all parties servicing and maintaining this
product.
DANGER
Strictly observe the following cautions. Failure to comply could result in serious bodily injury or loss of life.
1. Always disconnect the product from the power source and peripheral devices when servicing the product or
performing maintenance.
2. When performing works described in this manual, do not connect to a power source until instructed to do so.
Connecting to a power source causes high voltage in the power supply unit and some electronic components
even if the product power switch is off. If you need to perform the work with the power cable connected to a
power source, use extreme caution to avoid electrical shock.
WARNING
Strictly observe the following cautions. Failure to comply may lead to personal injury or loss of life.
1. Always wear protective goggles for disassembly and reassembly to protect your eyes from ink in working. If
any ink gets in your eyes, wash your eyes with clean water and consult a doctor immediately.
2. When using compressed air products; such as air duster, fo r cleaning during repair and maintenance, the use
of such products containing flammable gas is prohibited.
PRECAUTIONS
Strictly observe the following cautions. Failure to comply may lead to personal injury or damage of the product.
1. Repairs on Epson product should be performed only by an Epson certified repair technician.
2. No work should be performed on this product by persons unfamiliar with basic safety knowledge required for
electrician.
3. The power rating of this product is indicated on the serial number/rating plate. Never connect this product to
the power source whose voltages is different from the rated voltage.
4. Replace malfunctioning components only with those components provided or approved by Epson;
introduction of second-source ICs or other non-approved components may damage the product and void any
applicable Epson warranty.
5. The capacitors on the Main Board may be electrically 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 additional information for reference:
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 "2.3 Disassembly and Assembly
Procedure (p46)".
Confidential
Revision Status
RevisionDate of IssueDescription
AAugust 27, 2014First Release
BDecember 19, 2014Revise the content
Chapter 1
Made change in "1.1.5.1 Start method of Maintenance Special Mode (p28)".
Chapter 2
Made change in "2.2 Parts Diagram (p38)".
Disassembling procedure has been added in "2.3.2.1 Panel Unit (p48)"
Made change the picture of "2.3.4.6 Decompress Pump Unit (p81) ".
Made change for description in "2.3.4.8 Printhead (p85)".
Made change for description in "2.3.4.9 Ink Supply Unit (p90)".
Made change for description in "2.3.4.10 Head FFC (p96)".
Made change for description in "2.3.4.11 Ink Supply Assy (p98)"
Made change for description in "2.3.4.12 CR Scale (p104)".
Made change for description in "2.3.4.14 CR Guide Frame Assy (p109)".
Made change the picture of "2.3.4.15 Frame Base Assy (p113)".
Made change for description in "2.3.4.16 Star Wheel Assy (p114)".
Made change for description in "2.3.4.17 Front Frame Assy (p115)".
Made change for description in "2.3.4.18 EJ Roller (p118)".
Made change for description in "2.3.5.1 Ink Supply BK Cover Assy (p121)".
Made change for description in "2.3.5.2 Ink Supply CL Cover Assy (p123)".
Made change for description in
Made change for description in
Made change for description in
Made change for description in
Made change for description in "2.3.5.7 Ink Supply BK Assy (p134)".
Made change for description in "2.3.5.8 Ink Supply CL Assy (p136)".
Made change for description in "2.3.5.9 Ink Pack Holder (BK) (p140)".
Made change for description in "2.3.5.10 Ink Pack Holder (Y/M/C) (p142)".
Description about "2.3.5.11 Ink Supply Needle (p144)" has been added.
Description about "2.3.5.12 Ink tube (p144)" has been added.
Made change for description in "2.3.6.1 ADF Rear Cover (p146)".
Made change for description in "2.3.6.2 ADF Cover Assy (p147)".
Made change for description in
Made change for description in "2.3.6.4 ADF LD Assy (p148)".
Checkpoint of " 2nd Cassette Unit (p152)" has been added.
Made change for description in "2.3.7.2 Paper Stopper Assy 1st/2nd (p154)".
Description about "2.3.7.3 Pick Up Roller Assy 1st (p156)" has been added.
Made change for description in
Made change for description in
Chapter 3
Information of new inspection jig has added to "3.2.5 Ink Leak check (p204)".
Made change in "3.2.7 Touch Panel Adjustment (WF-R5690/R4640 series
only) (p218)".
Chapter 4
Delete the Firmware Update Procedure.
Made change in "4.3 Initialization of Admin Password (p226)".
"2.3.5.3 Releasing the Ink Supply BK Assy (p125)"
"2.3.5.4 Releasing the Ink Supply CL Assy (p128)"
"2.3.5.5 Ink Supply BK Cover Open Sensor (p131)"
"2.3.5.6 Ink Supply CL Cover Open Sensor (p132)"
1.1.5 Status sheet .................................... .......................................................................... ....................................... 28
1.1.5.1 Start method of Maintenance Special Mode....................................... ........................................ ........... 28
1.1.5.2 Description of Status sheet (Non-disclosed information to user).......................................................... 29
Chapter 2 DISASSEMBLY/REASSEMBLY
2.1 O verview ................................................................................................................................................................. 32
2.1.2 Screw types used in the printer..................................... .................................................................................. 33
2.1.3 Standard Operation Time for servicing the product ....................................................................................... 33
2.2 Parts Diagram .......................................................................................................................................................... 38
2.3 D isassembly and Assembly Procedure.................................................................................................................... 46
2.3.1 Preparation for servicing ................................................................................................................................ 46
2.3.1.1 Unlocking the Carriage Assy................................................................................................................. 46
2.3.1.2 Parts/Units Need to be Removed in Advance........................................................................................ 47
2.3.2 Exterior parts (WF-R5690/R4640 series)....................................................................................................... 48
2.3.2.1 Panel Unit .............................................................................................................................................. 48
2.3.2.5 ADF/Scanner Unit ................................................................................................................................. 53
2.3.2.6 Front Housing Assy ............................................................................................................................... 55
2.3.3 Exterior parts (WF-R5190 series) ................................................................................................................... 59
2.3.3.1 Panel Unit .............................................................................................................................................. 59
2.3.3.4 USB Cover............................................................................................................................................. 64
2.3.3.5 Front Housing Assy ............................................................................................................................... 65
2.3.4.1 Main Board Unit .................................................................................................................................... 69
2.3.4.2 Main Board ............................................................................................................................................ 74
2.3.4.3 Power Supply Unit................................................................... ... ........................................................... 76
2.3.4.10 Head FFC............................................................................................................................................. 96
2.3.4.15 Frame Base Assy .............................................................................................................................. . 113
2.3.4.16 Star Wheel Assy............................................................................................................... .................. 114
2.3.4.17 Front Frame Assy ............................................................................................................................... 115
2.3.4.18 EJ Roller ............................................................................................................................................ 118
2.3.5 I nk Supply Mechanism............................................................................................................................. .... 121
2.3.5.1 Ink Supply BK Cover Assy ................................................................................................................. 121
2.3.5.2 I nk Supply CL Cover Assy.................................................................................................................. 123
2.3.5.3 Releasing the Ink Supply BK Assy..................................................................................................... . 125
2.3.5.4 Releasing the Ink Supply CL Assy...................................................................................................... 128
2.3.5.5 I nk Suppl y BK Cover Open Sensor..................................................................................................... 131
2.3.5.6 Ink Supply CL Cover Open Sensor ..................................................................................................... 132
2.3.5.7 I nk Supply BK Assy ............................................................................................................................ 134
2.3.5.8 I nk Supply CL Assy............................................................................................................................. 136
2.3.6 A DF/Scanner Unit ........................................................................................................................................ 146
2.4.1 Top of the Scanner Unit...................................................................................................... .......................... 160
2.4.2 Bottom of the Frame Base............................................................................................................................ 160
2.4.4 Inside of the FAX Cover (WF-R5690/R4640 series)................................................................................... 162
2.4.5 Front of the Printer .............................................................................................................................. ......... 164
2.4.6 Center of the Printer ..................................................................................................................................... 166
2.4.7 Bottom of the Ink System Unit.......................................................................... ........................................... 168
2.4.10 Around the Main Board Assy (1) ................................................................................................... ............ 171
2.4.11 Around the Main Board Assy (2) ................................................................................................... ............ 174
2.4.12 Around the Main Board Assy (3) ................................................................................................... ............ 176
3.2.4 Checking the Platen Gap .............................................................................................................................. 203
5.2 Protection for transportation...................................................................................................................... ............ 230
5.2.1 Pasting the packing material to the Holder Slider Ink pack Assy................................................................ 230
Troubleshooting9
Confidential
CHAPTER 1
TROUBLESHOOTING
Confidential
Epson WF-R5690/R4640/R5190 seriesRevision 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.
(p12)
(p12)
(p12)
(p12)
(p12)
(p12)
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-R5690/R4640/R5190 series
WF-R5190 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)
TroubleshootingTroubleshooting11
Confidential
Epson WF-R5690/R4640/R5190 seriesRevision B
The power-on sequence
does not start (p11)
No power
[Presumable Cause]
• Damage to Power Supply Unit
• Damage to Main Board
• Damage to Panel Unit
[Remedy]
• Replace Power Supply Unit
• Replace Main Board
• Replace Panel Unit
*1
Error is indicated during printing nozzle check pattern. (p11)
Error is indicated during power-on
21
sequence (p11)
Fatal error
See "1.1.2Power-On Sequence
(p13)".
Paper jam error
See "Paper jam error" which
occurs during nozzle check
pattern printing.
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 (p11)
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
5643
successfully (p11)
Ink cover open error
[Occurrence Condition]
This error occurs when Ink Cover
is open.
[Occurrence Timing]
• At power-on
• During printing
[Remedy]
• Close Ink Cover
• Replace Cover Open Sensor
• Replace Main Board
ADF does not
operate
normally (p11)
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
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-R5690/R4640 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
TroubleshootingTroubleshooting Workflow12
Confidential
Epson WF-R5690/R4640/R5190 seriesRevision B
0
0
0
0
0
0
0
0
0
0
1.1.2 Power-On Sequence
This section describes the power-on sequences for this product. The preconditions are as follows.
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
80
80
80
HP
HP
HP
HP
↓
↓
↓
---
---
---
ON---
Troubleshooting13
Confidential
Epson WF-R5690/R4640/R5190 seriesRevision 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
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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.
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Epson WF-R5690/R4640/R5190 seriesRevision B
1.1.3 Fatal Error
This section describes the fatal error code and the possible cause for this product.
Fatal Error List
Fatal errors related to the ADF/Scanner unit do not occur for WF-R5190 series because this
model does not have ADF/Scanner unit.
Fatal ErrorFatal Error (Error Code:0xXX)Refer to Table 1-2 "Fatal Error List" (p.15)
Paper Jam ErrorPaper Jam ErrorRemove the jammed paper, close the cover.
No Paper ErrorPaper Out ErrorSet the paper, close the cover.
No Tray / Cassette ErrorCassette NothingSet the Cassette.
Ink Case Open ErrorInk Cover Open ErrorClose the ink cover.
Cover Open ErrorCover Open ErrorClose the Cover.
Carriage Outside errorOutside CarriageLock the CR unit.
No ink Cartridge ErrorInk Out ErrorReplace the ink pack.
Ink Cartridge Abnormal ErrorInk Out ErrorReplace the ink pack.
Ink Cartridge Non-Genuine ErrorInk Out ErrorReplace the ink pack.
Initial Charge ErrorInk out ErrorReplace the ink pack.
Ink ErrorInk Out ErrorReplace the ink pack.
Ink End ErrorInk Out ErrorReplace the ink pack.
Print ErrorInk Out ErrorReplace the ink pack.
Maintenance Box Nothing ErrorMaintenance Box Nothing ErrorReplace the Maintenance Box
Maintenance Box CSIC ErrorMaintenance Box CSIC ErrorReplace the Maintenance Box.
Maintenance Box Full ErrorMaintenance Box Full ErrorReplace the Maintenance Box.
Double Feed ErrorPaper Piled Out ErrorRemove the jammed paper, close the cover
Fax Paper length Mismatch ErrorOther ErrorSet the specified paper.
Auto duplex paper length Mismatch ErrorPaper Size Error (Duplex)TBD
Paper Mismatch Error (Logical)Other ErrorTBD
Duplex Printing ErrorCant Dup MediaTBD
Memory Overflow ErrorOther ErrorTBD
Manual Feed Command ErrorManual Feed ErrorTBD
Diver Mismatch ErrorOther ErrorTBD
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Epson WF-R5690/R4640/R5190 seriesRevision B
ItemInformation
Communication
Start date / time
Year/month/day/hour/minute
Communication typeSending/receiving/polling reception
Communication ID
Sending/polling reception:
• Destination name of speed dial (first 20 characters)
• Telephone number (last 20 characters)
• Destination fax ID (20 characters)
Receiving:
• Destination fax ID (20 characters)
AirtimeHour/minute/second
Communication
pages
0 to 100
Communication
result
Common:
Normal/cancel/error code*
Sending/polling reception:
No dial tone detected/No fax signal detected/Busy tone detected
1.1.4 FAX Troubleshooting
1.1.4.1 FAX Log
When an error related to fax occurs, it is not only indicated on LCD but also saved as a log file. The error code is
recorded in it, and according to this log, the contents of the error can be confirmed.
Table 1-4. FAX Log (1)
Log NameDescriptionSave Destination
Latest log
(Last Transaction)
*1
The latest communication log of sending / polling receptionNonvolatile memory
The following information is stored.
Communication log
(Fax Log)
Note *: For error codes, see Table 1-2 "Fatal Error List" (p.15).
Power failure log
(Fax Log)
Note *1: The latest communication log for all destinations are printed in a list from when the sequential broadcast is executed.
*2: The power failure log when the sequential broadcast is being executed is not printed for the destinations to which the
*2
Cancellation is treated as a normal termination, ther efore, if it is cancelled, the latest log is printed when the aut o print s etting is
“always print”, and not printed when the setting is “only when an error occurs”. If “only when an error occurs” is selected, the
log is printed even when an error occurs for just one destination.
transmission log is already complete then. If the power failure occurs before the scheduled sending time when a broadcast is
scheduled, the scheduled sending time is recorded.
The information stored in this log is the same as the communication log.However, since the
airtime is “Unknown” in this case, the result of it is recorded as “power failure”.
Nonvolatile memory
Nonvolatile memory
The communication log is not stored under the following conditions:
When the sending operation is canceled which storing B&W image or waiting for
Troubleshooting20
redialing.
In the case of a power failure during the operation of sending/polling reception including
waiting status for redial, or during receive operation.
When the receiving operation is canceled before the fax signal is detected.
If the fax signal is not detected during receiving operation.
If cancelled during the sequential broadcast.
(The log for the destinations of “not dialed yet” or “waiting for redial” is not saved except
for those of which the communication is complete.)
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Epson WF-R5690/R4640/R5190 seriesRevision B
ItemInformation
Communication start
date / time
Year/month/day/hour/minute
Communication TypeSending/receiving/polling reception
Communication ID
Sending/polling reception:
• Destination name of speed dial (first 20 characters)
• Telephone number (last 20 characters)
• Destination fax ID (20 characters)
Receiving:
• Destination fax ID (20 characters)
AirtimeHour/minute/second
Communication pages0 to 100
Communication result
Common:
Normal/cancel/error code
Sending/polling reception:
No dial tone detected/No fax signal detected/Busy tone detected.
Diagnosing code10 bytes
Protocol data
The latest 43 commands/responses*
• Time stamp
• Sending / receiving
• Command / response code
(See Table 1-7 "Command/Response Code" (p.24))
• FCF / FIF (first 33 octets)
Table 1-5. FAX Log (2)
Log NameDescriptionSave Destination
The following information of the latest communication is stored.
Protocol trace
Volatile memory
Note *: If a large amount of FIF is received, the recorded command/response may
631Communication errorCommunication errorError code
632Communication errorCommunication errorError code
633Communication errorCommunication errorError code
634A fax signal was not detected for a given length of time after dialingNo AnswerNo Answer
637A dial tone was not detected before dialingNo Dial ToneNo Dial Tone
638A power failure occurred during communicationNo displayedPower Fail
700The communication was canceled by an operationCanceledCanceled
706System errorSystem ErrorError code
709Communication errorCommunication errorError code
815Communication errorCommunication errorError code
870The image memory is fullMemory FullMemory Full
Fax signal was not detected during receive operation. (The call was a
telephone call)
PhenomenonLCD DisplayPrint Example
Not displayed---
Talking
(Line Busy)
Talking
(Line Busy)
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Epson WF-R5690/R4640/R5190 seriesRevision B
Table 1-6. Fax Error Code List
Error
Code
(HEX)
871The maximum number of files was exceededError codeError code
873Communication errorCommunication errorError code
874Communication errorCommunication errorError code
875Communication errorCommunication errorError code
880System errorSystem ErrorError code
881System errorSystem ErrorError code
882System errorSystem ErrorError code
883System errorSystem ErrorError code
884System errorSystem ErrorError code
928Collision (A call signal was detected when shifting to dial operation)Not displayed--F0BCommunication errorCommunication errorError code
F1ECommunication errorCommunication errorError code
F20Communication errorCommunication errorError code
F21System errorSystem errorError code
F23Communication errorCommunication errorError code
F24Communication errorCommunication errorError code
F25Communication errorCommunication errorError code
F27System errorSystem errorError code
F28System errorSystem errorError code
SIDA2---Sender IDentification
TRNE6---Training
TCFF0---Training Check
CTC12---Continue To Correct
Reserved (TSA)62---Transmitting Subscriber internet Address
Reserved (IRA)E2---Internet Routing Address
CFR84---ConFirmation to Receive
FTT44---Failure To Train
CTRC4---Response for Continue To correct
Reserved (CSA)24---Called Subscriber internet Address
EOM8E---End Of Message
MPS4E---Multi Page Signal
EOP2E---End Of Procedure
PRI-EOM9E---Procedure Interrupt-End Of Message
PRI-MPS5E---Procedure Interrupt-Multi Page Signal
PRI-EOP3E---Procedure Interrupt-End Of Procedure
Reserved (EOS)1E---End Of Selection
PPS-EOMBE8EPartial Page Signal-End Of Message
PPS-MPSBE4EPartial Page Signal-Multi Page Signal
PPS-EOPBE2EPartial Page Signal-End Of Procedure
PPS-PRI-EOMBE9EPartial Page Signal-Procedure Interrupt-End Of Message
PPS-PRI-MPSBE5EPartial Page Signal-Procedure Interrupt-Multi Page Signal
PPS-PRI-EOPBE3E
PPS-EOSBE1EPartial Page Signal-End Of Selection
PPS-NULLBE00Partial Page Signal-part i al page boundary
EOR-EOMCE8EEnd Of Retransmission-End Of Message
FCF value (HEX)
Content
FirstSecond
Partial Page Signal-Procedure InterruptEnd Of Procedure
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Epson WF-R5690/R4640/R5190 seriesRevision B
Table 1-7. Command/Response Code
Command/response
code
EOR-MPSCE4EEnd Of Retransmission-Multi Page Signal
EOR-EOPCE2EEnd Of Retransmission-End Of Procedure
EOR-PRI-EOMCE9E
EOR-PRI-MPSCE5E
EOR-PRI-EOPCE3E
EOR-EOSCE1EEnd Of Retransmission-End Of Selection
EOR-NULLCE00End Of Retransmission- partial page boundary