Epson WF-7110 Series, Service Manual

Page: 11 / 86

Epson WF-7620 / WF-7610 / WF-7110 Series Revision B
Confidential
Appendix Troubleshooting Workflow 11
Figure 1-2. Troubleshooting Workflow (2)
Fatal error
Please refer to " 1.3 Fatal Error
Code List (p15)" for
troubleshooting.
Maintenance error
[Occurrence Condition]
This error occurs when
maintenance counter in
EEPROM exceeds the specified
value.
[Major Occurrence Timing]
• Power-on timing
• Print start timing
• Paper eject timing
• Cleaning timing
• Ink cartridge replacement
timing
[Major Troubleshooting]
• Replace Maintenance Box
• Paper Guide Lower Porous
Pad replacement
• Maintenance counter reset
(only Paper Guide Lower
Porous Pad)
No Maintenance Box error
[Occurrence Condition]
This error occurs when
Maintenance Box is not installed.
[Major Occurrence Timing]
• At power-on
• Maintenance Box monitoring
timing
[Major Troubleshooting]
Turn the printer off once and
install Maintenance Box again,
and turn the power on.
Maintenance Box detection
error
[Occurrence Condition]
This error occurs when
Maintenance Box data is incorrect
or it is not recognized correctly.
[Major Occurrence Timing]
• Power-on timing
• Maintenance Box replacement
timing
• Maintenance Box monitoring
timing
[Major Troubleshooting]
• Remove and reinstall
Maintenance Box
• Maintenance Box replacement
• Relay Board CSIC Terminal
replacement
• Relay Board Assy replacement
• Relay Board FFC replacement
• Main Board replacement
Ink 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 Power
*
[Presumable Cause]
• Power Supply Unit
damage
• Main Board damage
• Panel Unit damage
[Major Troubleshooting]
• Power Supply Unit
replacement
• Main Board
replacement
• Panel Unit replacement
2
* : 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.
The power-on
sequence does not
start
(p 10)
1
Error is indicated during
power-on sequence
(p 10)
Ink End error
[Occurrence Condition]
This error occurs when ink in Ink
cartridge is empty.
[Major Occurrence Timing]
• Power-on timing
• Print start timing
• Print timing
• Cleaning timing
• Ink cartridge replacement
timing
[Major Troubleshooting]
Ink cartridge replacement
[NOTE]
If an error occurs during
printing, the page where the error
occurred is skipped and the
printing resumes from the next
page.
No Ink cartridge error
[Occurrence Condition]
This error occurs when Ink
cartridge is not installed.
[Major Occurrence Timing]
At power-on
[Major Troubleshooting]
Install Ink cartridge
Cover open error
[Occurrence Condition]
This error occurs when Scanner
Unit
( Printer Cover) is open.
[Major Occurrence Timing]
• At power-on
• During printing
[Major Troubleshooting]
• Close Scanner Unit (Printer
Cover) replacement
• Scanner Unit (Printer Cover)
replacement
• Cover Open Sensor
replacement
• Main Board replacement
CR Fixing Tape error
[Occurrence Condition]
This error occurs if a paper jam
occurs during the power-on
sequence before initial ink
charge.
[Major Occurrence Timing]
Power-on timing
(before initial ink charge)
[Major Troubleshooting]
Open the scanner unit and
remove the CR fixing tape.
Paper Jam error
Please refer to " Paper Jam
error" .
Paper Jam error
[Occurrence Condition]
This error occurs when top/bottom of
paper is not detected by PE Sensor in the
specified steps of paper feeding
operation correctly.
[Major Occurrence Timing]
• Power-on timing
• Paper loading timing
• Paper eject timing
• Duplex print timing
[Major Troubleshooting]
1 remove the jammed paper by opening
Scanner Unit or Printer Cover.
2 Push “Start” button.
3 If not resolved by 2), check the
following.
• Foreign material, bits of paper
• Part come-off
• PE Lever
• PE Sensor
• Float of Paper Guide Front Porous
Pad
• Main Board
• PW Sensor
[NOTE]
* If an error occurs during printing, the
page where the error occurred is skipped
and the printing resumes from the next
page.
* If an error occurs during duplex
printing, the following are performed.
• If an error occurs during the front
face of duplex printing, the page
where the error occurred and the
next page are skipped and the
printing resumes from the page
after the next.
• If an error occurs during the back
face of duplex printing, the page
where the error occurred is skipped
and the printing resumes from the
next page.
No Paper error
[Occurrence Condition]
This error occurs when top of
paper is not detected by PE Sensor
in the specified steps of paper
loading operation correctly.
[Major Occurrence Timing]
Paper loading timing
[Major Troubleshooting]
1 Put paper in cassette and push
“START” button.
2 If a paper stops before reaching
PE Sensor, remove it and
check the paper condition.
3 A) If no damage on the paper, set
edge guide correctly after
putting paper in cassette and
push “PRINT” button again.
B) If damage on the paper, check
foreign materials / parts come-
off / parts transformation in
paper path.
4 If not resolved by 3-A) & 3-B),
check the following.
• Pickup Roller
• Duplex Unit
• PE Sensor
• Main Board
• PF Motor
• Casette Assy
Double Feed error
[Occurrence Condition]
This error occurs on the following
cases.
• A paper is ejected without
printing during paper loading
operation.
• Actual paper length is longer
than theoretical one.
[Major Occurrence Timing]
Paper loading timing
[Major Troubleshooting]
• PE Lever replacement
• PE Sensor replacement
• PW Sensor replacement
• Main Board replacement
[NOTE]
This error occurs only for manual
duplex print.
No Paper Cassette error
[Occurrence Condition]
This error occurs if one of the
cassettes is not installed.
[Major Occurrence Timing]
Paper loading timing
(Front loading)
[Major Troubleshooting]
Install the Cassette Assy.
3
Error is indicated during printing nozzle check pattern (p 10)
Manual Tray No Paper error
[Occurrence Condition]
When printing from Manual Tray
(MSF unit), this error occurs if
paper is not loaded at the time of
data transmission.
[Major Occurrence Timing]
Paper loading timing
(Rear loading)
[Major Troubleshooting]
• Put paper in the Manual Tray
(MSF unit).
• PE Sensor replacement
• PW Sensor replacement
• Main Board replacement
Manual Feed Request error
[Occurrence Condition]
This error occurs if the printer
cannot receive the manual feed
request.
[Major Occurrence Timing]
Paper loading timing
(Rear loading)
[Major Troubleshooting]
• Send the print data.
• Main Board replacement
Excessive Manual Feed Error
[Occurrence Condition]
This error occurs when the PE
Sensor detects paper before
manual feed or when paper is
inserted too much.
[Major Occurrence Timing]
Print start timing (Rear loading)
[Major Troubleshooting]
• Eject paper with panel
operation, and load paper
again.
• Main Board replacement
• PE Sensor replacement
• PE Lever replacement
Insufficient Manual Feed
error
[Occurrence Condition]
This error occurs during manual
feed if the PE Sensor detects
paper but the paper is not fed by
auto loading.
[Major Occurrence Timing]
Print start timing (Rear loading)
[Major Troubleshooting]
Eject paper with panel operation,
and load paper again.
Paper Size Unmatch error
[Occurrence Condition]
This error occurs when actual
paper size is not matched to
theoretical one.
[Major Occurrence Timing]
• Duplex print timing
• FAX data print timing
[Major Troubleshooting]
1 Put correct sized paper in
cassette, and push “START”
button.
2 If not resolved by step 1),
check the following points.
• PE Lever
• PE Sensor
• PW Sensor
• Main Board