Oki MC760 Maintenance Manual page 155

Oki Data CONFIDENTIAL
Error code Cause
C5A1 Read/write
error of
the engine
EEPROM is
detected.
C940 Engine control
logic has an
error.
F031 Duplex unit for
other model is
detected.
F033 2nd tray for
other model is
detected.
F032 3rd tray for
other model is
detected.
C96A High voltage
power supply
interface error.
C0A2 Low voltage
power supply
fan error
CE51 Environment
humidity is
abnormal./
Humidity
sensor is not
connected.
CE50 Environment
temperature
is abnormal.
45376001TH Rev.1
Error details Remedial measure
Turn off the power
Does this error recur? Yes of the printer and
back on.
Replace the PU
board.
Turn off the power
of the printer and
back on.
Does this error recur? Yes Replace the PU
board.
Is the Duplex unit for that No Install the correct
specific model installed? duplex unit.
Is the 2nd tray for that specific No Install the correct
model installed? 2nd tray.
Is the 3rd tray for that specific No Install the correct
model installed? 3rd tray.
Is the cable connecting the PU No Re-connect them
board to the high voltage unit normally.
connected normally? Yes Check for defective
Have you checked defective contact of the high
contact of contactor points? voltage system.
No Replace the high
voltage power
Note)
supply.
No Check for sure
Is the fan (bottom right of the
connection of the
front) of the low voltage power
supply block working? fan connector.
Yes Replace the PU
board.
Is the fan connector connected No Replace the fan
normally? motor.
Yes
Turn off the power
of the printer and
back on.
Does this error recur? Yes Replace the Board
MFH.
Turn off the power
of the printer and
back on.
Does this error recur? Yes Replace the Board
MFH.
Error code Cause
CE52 Dew This error can easily occur
condensation when a printer is brought in to
of the printer indoor from outdoor.
is detected. Leave the printer for 2 hours
or half day under room
temperature, and turn on the
power again.
Does this error recur?
C0A1 Fuser exhaust Is the fan connector connected
fan error normally?
Does this error recur?
C0A5 ID cooling fan Is the fan connector connected
error normally?
Does this error recur?
C0A6 Duplex Fan error inside the Duplex unit.
FAN Alarm
Caution
Does the error recur when the
power is turned off once and
back on?
Does the error recur when the
power is turned off once and
back on?
CE82~ LED head Is the LED head connected
CE85 detection normally?
error
(CE82=Y,
CE83=M, Is the LED HEAD fuse brown?
CE84=C, Does this error recur?
CE85=K)
CE7A ID Up/Down Is the ID unit caught by anything
position when it is removed and re-
detection installed?
error
Does this error recur?
7. Troubleshooting and repair procedure
Error details Remedial measure
After leaving a
printer under room
temperature, turn
on the power
again.
Yes Replace the Board
MFH.
No Re-connect it
normally.
Yes Replace the fan
motor.
No Replace the PU
board.
No Re-connect it
normally.
Yes Replace the fan
motor.
No Replace the PU
board.
Check if the Duplex
unit is installed
normally or not.
Check if the fans
Yes are installed
normally or not.
Replace the fan.
Yes
No Install the LED
head unit normally.
Yes Check the LED
HEAD fuse.
Yes After checking fuse
No Turn on the power
again.
Yes For the method of
checking the LED
head unit fuse,
refer to section 7.6.
Yes Re-install the ID
unit.
No Turn on the power
again.
Yes Replace the high
voltage power supply.
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