Epson WF-7525 - Page 32

Epson WF-7520/7510/7010 series Revision A Appendix Troubleshooting Workflow 32
 This flowchart is compiled based on the following contents.
• Our experience regarding the quality problem • ESK’s repair data
• Printer Mechanism specification for WF-7520/7510/7010 series
 WF-7010 series are not equipped with the Scanner / ADF unit,
therefore, the troubleshooting related to the Scanner / ADF unit is not applied.
Fatal error
Please refer to “ 3.1.3 Fatal Error
Code (p33)”
for troubleshooting.
Waste ink pad end error
[Occurrence Condition]
This error occurs when maintenance counter in EEPROM exceeds the specified value.
[Major Occurrence Timing]
• Power-on timing • Print start timing • Cleaning timing
• Ink Cartridge replacement timing
[Troubleshooting]
• Waste Ink Pad (Waste Ink Tray
Assy or Paper Guide Lower Porous Pad) replacement
• Maintenance counter reset
Ink end error
[Occurrence Condition]
This error occurs when ink in Ink Cartridge is empty.
[Major Occurrence Timing]
• Power-on timing • Print start timing • Cleaning timing • Ink Cartridge replacement
timing
• During printing
[Troubleshooting]
• Ink Cartridge replacement
[NOTE]
If this error occurs during auto duplex print operation, printer stops and eject the paper automatically even if the printing is not completed.
Ink cartridge detection error
[Occurrence Condition]
This error occurs when Ink Cartridge data is incorrect or Ink Cartridge is not recognized correctly.
[Major Occurrence Timing]
• Power-on timing • Print start timing • Cleaning timing • Ink Cartridge replacement
timing
[Major Troubleshooting]
• Remove and reinstall Ink
Cartridge
• Ink Cartridge replacement • CSIC Terminal replacement • CR Contact Module
replacement
• Head FFC replacement • Main Board replacement
No ink cartridge error
[Occurrence Condition]
This error occurs when Ink Cartridge is not installed.
[Major Occurrence Timing]
• Power-on timing
[Troubleshooting]
• Ink Cartridge installation
Cover open error
*2
[Occurrence Condition]
This error occurs when Scanner Unit or Printer Cover is in open condition.
[Major Occurrence Timing]
• Power-on timing
[Major Troubleshooting]
• Scanner Unit or Printer Cover
close
• Scanner Unit or Printer Cover
replacement
• Cover Open Sensor
replacement
• Main Board replacement
Paper jam error
Please refer to “ Paper jam error ” of “Error occurs in printing operation”.
Paper jam error
[Occurrence Condition]
This error occurs when the top/
bottom of paper cannot be
detected by PE Sensor within the specified steps even if the paper has been fed correctly.
[Major Occurrence Timing]
• Power-on timing • Paper loading timing • Paper eject timing • Auto duplex print timing
*4
[Major Troubleshooting]
1 Press the “OK” button to eject
the paper.
• If succeeded
Starts paper feeding operation again if printer has print data.
• If failed
Occurs paper jam error again.
2 If fail in the above 1, remove
the paper by opening Scanner Unit or Printer Cover and taking off Duplex Unit.
3 Press the “OK” button again.
• If succeeded
Starts paper feeding operation again if printer has print data.
• If failed
Occurs paper jam error again.
4 Check the following if failed in
Step 3.
• Foreign material • Part come-off • PE Sensor Lever • PE Sensor • Paper Guide Front Porous
Pad
• Main board • Paper Stopper Assy
[NOTE]
If this error occurs during auto duplex print operation, printer stops and eject the paper automatically even if the printing is not completed. (print data of adverse side & reverse side is eliminated.)
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)
[Major Occurrence Timing]
• Paper loading timing
[Major Troubleshooting]
1 Put papers in Cassette Assy
and press the “OK” button.
2 If a paper stops before reaching
PE Sensor, remove it and check the paper condition.
3 A) If no damage in the above 2,
set edge guide correctly after
putting papers in
Cassette
Assy
and retry.
B) If damage in the above 2,
check foreign materials /
parts come-off / parts
transformation in paper path.
4 If the problem is not solved by
3-A & 3-B, check the following.
• Foreign material • Part come-off • Surface condition of Pickup
Roller or paper feed roller in Duplex Unit
• PE Sensor Lever • PE Sensor • Pre-PE Sensor Lever • Pre-PE Sensor • Main Board • PF Motor or Pickup Motor • Cassette Assy • Paper Stopper Assy
Multi-feed error
[Occurrence Condition]
This error occurs on the following case. • The top of paper is detected
before the specified steps are
reached.
• Actual paper length is longer
than theoretical one.
[Major Occurrence Timing]
• Paper loading timing • Paper feed timing • Paper eject timing
[Troubleshooting]
• PE Sensor Lever replacement • PE Sensor replacement • PW Sensor replacement • Main Board replacement
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).
[Major Occurrence Timing]
• Auto duplex print timing
*4
[Troubleshooting]
• PE Sensor Lever replacement • PE Sensor replacement • PW Sensor replacement • Main Board replacement
Paper size mismatch error
*3
[Occurrence Condition]
This error occurs when actual
paper size is not matched to
theoretical one. (shorter only)
[Major Occurrence Timing]
• Paper loading timing • Paper feed timing • Paper eject timing
[Troubleshooting]
• PE Sensor Lever replacement • PE Sensor replacement • PW Sensor replacement • Main Board replacement
No Power
*1
[Presumable Cause]
• Power Supply Unit damage • Main Board damage
[Major Troubleshooting]
• Power Supply Unit
replacement
• Main Board replacement
Poor Printing
[Phenomenon]
• Poor printing quality • Ink stain on paper • Dot missing • Paper eject without printing
[Presumable Cause]
• Driver / Panel mis-setting • Contamination of CR Scale • Contamination of Printhead
Cover
• Printhead damage • Ink clogging of Printhead • Contamination on Cap / Wiper
of Ink System Assy
• Ink System Assy damage • Float of Paper Guide Front
Porous Pad
• Narrow PG • PE Sensor Lever damage • PE Sensor damage
[Major Troubleshooting]
• Driver / Panel re-setting • CR Scale replacement • Printhead Cover cleaning • Printhead cleaning • Ink Cartridge replacement • Printhead replacement • Rubber cleaning of Cap • Ink System Assy replacement • Paper Guide Front Porous Pad
re-installation
• Printer Mechanism (Frame
Base Assy) replacement
• PE Sensor Lever replacement • PE Sensor replacement
Poor Paper Loading
[Presumable Cause]
• Use of 3rd party media • Edge guide mis-setting • Foreign material • Part come-off • Contamination of paper feed
roller in Duplex Unit
• Cassette Assy damage
[Major Troubleshooting]
• Recommendation of EPSON
media
• Edge guide re-setting • Foreign material removal • Part re-installation • Roller replacement • Cassette Assy replacement
Abnormal Noise
[Presumable Cause]
• Foreign material • Insufficient grease • Gear damage
[Major Troubleshooting]
• Foreign material removal • Lubrication of grease • Gear replacement
Scanner failure
[Presumable Cause]
• Contamination of Scanner Glass • Contamination of Document Pad • CIS Unit bonding failure • CIS Unit damage • Scanner Motor Assy damage
[Major Troubleshooting]
• Scanner Glass cleaning • Document Pad cleaning • Document Pad replacement • CIS Unit replacement • Scanner Motor Assy replacement
ADF failure
[Phenomenon]
• No paper feed • Double feed • Paper jam • Paper skew
[Presumable Cause]
• Wear of Pickup Roller • Wear of ADF Pad Assy • Gear damage • ADF Motor damage • Contamination of Scanner Glass • Paper Sheet damage • Foreign material • ADF Paper Guide Upper Assy damage • Wear of paper eject roller • ADF Sensor damage
[Major Troubleshooting]
• ADF LD Assy replacement • ADF Pad Assy replacement • Scanner Glass cleaning • Paper Sheet replacement • Foreign material removal • ADF Unit replacement
Finish
*5
Turn on the printer
1
1
Major problem without error message
Print check pattern
What is returned reason?
Copy an image
Copy an image by ADF
Flow A
Return previous flow
Is printing operation
finished without trouble?
Start
ADF/Scanner
unit failure
Printer failure only
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Start
Yes
*1: If the printer can turn on but turns off right away, the protection circuit may cut off the power
due to an error such as a circuit failure.
*2: For WF-7010 series, this error occurs only when the Printer Cover is opened. *3: Only for fax printing for WF-7520/7510 series. *4: Auto duplex printing is available only for WF-7520/7010 series. *5: In case of “Not Trouble Found”, check fatal error code.
Major problem with error message
Major problem without
error message
Is Power-on sequence
finished without error?
Perform “Flow A”
Yes
No
Is ADF operation finished
without trouble?
Standby condition
ADF failure?
Is scanning operation
finished without
trouble?
Does power-on
sequence start?
No paper cassette error
[Occurrence Condition]
This error occurs when Cassette Assy cannot be detected.
[Major Occurrence Timing]
• Paper loading timing
[Troubleshooting]
• Check connection for Paper
Stopper Lever Sensor cable
• Replace Paper Stopper Lever
Sensor
Is printing operation
finished without error?