44205401TH Rev.1
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Oki Data CONFIDENTIAL
7. Troubleshooting and repair procedure
Display Cause Error details Remedial measure
Service call
081: Error
Parameter
integrity
check
Either EEPROM or Flash ROM
cannot read/write normally.
Turn the printer
power off and then
back on. If the error
symptom remains
unchanged,
replace the CU/PU
board.
Service call
104: Error
Read/write
error of
the engine
EEPROM is
detected.
Does this error recur?
Yes
Turn off the power
of the printer and
back on.
Replace the CU/
PU board.
Service call
106: Error
Engine control
logic has an
error.
Does this error recur?
Yes
Turn off the power
of the printer and
back on.
Replace the CU/
PU board.
Service call
111: Error
Duplex unit for
other model is
detected.
Is the Duplex unit for that
specific model installed?
No
Install the correct
duplex unit.
Service call
112: Error
2nd tray for
other model is
detected.
Is the 2nd tray for that specific
model installed?
No Install the correct
2nd tray.
Service call
113: Error
3rd tray for
other model is
detected.
Is the 3rd tray for that specific
model installed?
No Install the correct
3rd tray.
Service call
121: Error
High voltage
power supply
interface error.
Is the cable connecting the CU/
PU board to the high voltage
unit connected normally?
Have you checked defective
contact of contactor points?
Note)
No
Yes
No
Re-connect them
normally.
Check for defective
contact of the high
voltage system.
Replace the high
voltage power
supply.
Service call
122: Error
Low voltage
power supply
fan error
Is the fan (bottom right of the
front) of the low voltage power
supply block working?
Is the fan connector connected
normally?
No
Yes
No
Yes
Check for sure
connection of the
fan connector.
Replace the CU/
PU board.
Replace the fan
motor.
Display Cause Error details Remedial measure
Service call
123: Error
Environment
humidity is
abnormal./
Humidity
sensor is not
connected.
Does this error recur?
Yes
Turn off the power
of the printer and
back on.
Replace the control
panel board.
Service call
124: Error
Environment
temperature
is abnormal.
Does this error recur?
Yes
Turn off the power
of the printer and
back on.
Replace the control
panel board.
Service call
126: Error
Dew
condensation
of the printer
is detected.
This error can easily occur
when a printer is brought in to
indoor from outdoor.
Leave the printer for 2 hours
or half day under room
temperature, and turn on the
power again.
Does this error recur?
Yes
After leaving a
printer under room
temperature, turn
on the power
again.
Replace the control
panel board.
Service call
127: Error
Fuser exhaust
fan error
Is the fan connector connected
normally?
Does this error recur?
No
Yes
No
Re-connect it
normally.
Replace the fan
motor.
Replace the CU/
PU board.
Service call
128: Error
ID cooling fan
error
Is the fan connector connected
normally?
Does this error recur?
No
Yes
No
Re-connect it
normally.
Replace the fan
motor.
Replace the CU/
PU board.
Service call
131: Error~
134: Error
LED head
detection
error
(131=Y,
132=M,
133=C,
134=K)
Is the LED head connected
normally?
Is the LED HEAD fuse brown?
Does this error recur?
No
Yes
Yes
No
Yes
Install the LED
head unit normally.
Check the LED
HEAD fuse.
After checking fuse
Turn on the power
again.
For the method of
checking the LED
head unit fuse,
refer to section 7.6.
Service call
142: Error
ID Up/Down
position
detection
error
Is the ID unit caught by anything
when it is removed and re-
installed?
Does this error recur?
Yes
No
Yes
Re-install the ID
unit.
Turn on the power
again.
Replace the ID
UP/DOWN sensor.
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