Oki MC760 Maintenance Manual page 156

Error code Cause
C468 The backup
roller
C466
thermistor Does this error recur?
has detected
an abnormal Does this error recur?
temperature
(high
temperature
or low
temperature.)
C56A Option unit
I/F error
C56B
(C56A=Duplex Does this error recur?
C56C
Unit,
C56D
C56B=2nd Tray,
Does this error recur?
C56C=3rd Tray
C56D=4th Tray)
C56E When LCF is setting,Tray2 Unit
I/F Error or Tray3 Unit I/F Error
is report from PU.
Interchange the error to LCF
Unit I/F Error by CU.
Occur:When communication
has dropped off.
C91D RFID Reader RFID read device error
not Installed
Does this error recur?
C91A RFID reader Interface error with the RFID
I/F error reader is detected.
C91B
01: Communication error
C91C
02: Error in the wireless circuit
03: Communication error
04: Error is detected in the RFID
Error details Remedial measure
Turn on the power
again.
Yes Replace the fuser
unit.
Yes Replace the low
voltage power
supply unit.
Turn on the power
again.
Yes Check for sure
connection of the
connectors.
Yes Replace the option
unit.
Turn on the power
again.
Yes Check for normal
connection of the
RFID R/W board.
Yes Replace the RFID
R/W. Replace the
PU board.
01: Same as the
error no. C91D
02: Replace the
between the RFID reader RFID R/W
and the engine circuit board.
boards.
03: Check for
normal
of the RFID reader connection of
the antenna
cable.
between the RFID reader
and the toner cartridge. 04: Check if
quantity of the
toner cartridge
toner cartridge.
is correct or
(In more than 4)
not.
Error code Cause
C37A~ Abnormal Is the cable from belt thermistor
C37D temperature to the high voltage board
of belt connected normally?
C37A: Short-
Does this error recur?
circuit
C37B: Open
circuit
C37C: High
temperature
C37D: Low
temperature
C020 Image drum The ID does not rotate normally.
lock error
Does the error display recur
when the power is turned off
once and back on?
C4E3 Fuser motor Fuser does not rotate normally.
lock error
Does this error recur?
C4FA Media Media has wrapped around the
wrapped fuser.
around the
fuser error
C5B2 Tray-2/3/4
C5B2=2nd Tray
C5B3 CPU clock
C5B3=3rd Tray
C5B4 frequency
C5B4=4th Tray
error
C5B5
When LCF is setting, Tray2
Clock Adjust Error or Tray3
Clock Adjust Error is report from
PU.
Interchange the error to LCF
Clock Adjust Error by CU.
F041 Over than Over than available setting
available number tray is installed.
setting
number tray
detection
error
7. Troubleshooting and repair procedure
Error details Remedial measure
No Re-connect the
cables normally.
Yes Turn on the power
again.
No Replace the belt
thermistsor.
Check if the ID is
installed normally
or not.
Yes Replace the ID
unit.
Yes Replace the ID
motor.
Check if the
fuser is installed
normally or not.
Yes Replace the fuser.
Yes Replace the fuser
motor.
Turn off the power.
Replace the fuser.
Replace the Tray
board GOH-11.
Replace the Tray
board
Remove the
available setting
number tray.
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