Oki MC760 Maintenance Manual page 157

Oki Data CONFIDENTIAL
Error code Cause
C56A Option unit
I/F error
C56B
(C56A=Duplex
C56C
Unit,
C56D
C56B=2nd Tray,
C56C=3rd Tray
C56D=4th Tray)
C91D RFID Reader
not Installed
C91A RFID reader
I/F error
C91B
C91C
C37A~ Abnormal
C37D temperature
of belt
C37A: Short-
circuit
C37B: Open
circuit
C37C: High
temperature
C37D: Low
temperature
C020 Image drum
lock error
45376001TH Rev.1
Error details Remedial measure
Turn on the power
again.
Does this error recur? Yes Check for sure
connection of the
connectors.
Does this error recur? Yes Replace the option
unit.
RFID read device error Yes Check for normal
connection of the
RFID R/W board.
Yes Replace the RFID
Does this error recur?
R/W. Replace the
PU board.
Interface error with the RFID 01: Same as the
reader is detected.
01: Communication error 02: Replace the
between the RFID reader
and the engine circuit
boards.
03: Check for
02: Error in the wireless circuit
of the RFID reader
03: Communication error
between the RFID reader
and the toner cartridge. 04: Check if
04: Error is detected in the RFID
toner cartridge.
(In more than 4)
Is the cable from belt thermistor No Re-connect the
to the high voltage board cables normally.
connected normally? Yes Turn on the power
again.
Does this error recur? No Replace the belt
thermistsor.
The ID does not rotate normally. Check if the ID is
installed normally
Does the error display recur or not.
when the power is turned off Yes Replace the ID
unit.
once and back on?
Yes Replace the ID
motor.
Error code
C4E3
C4FA
C5B2
C5B3
C5B4
F041
error no. C91D
RFID R/W
board.
normal
F042
connection of
the antenna
cable.
quantity of the
toner cartridge
is correct or
F03A~
not.
F03D
C1DA
C1DB
C46A
C46B
C5A2
7. Troubleshooting and repair procedure
Cause Error details
Fuser motor Fuser does not rotate normally.
lock error
Does this error recur?
Media Media has wrapped around the
wrapped fuser.
around the
fuser error
Tray-2/3/4
C5B2=2nd Tray
CPU clock
C5B3=3rd Tray
frequency
C5B4=4th Tray
error
Over than Over than available setting
available number tray is installed.
setting
number tray
detection
error
Error due Two or more toner cartridges of
to detection the same color are detected.
of the toner
cartridges
of the same
color
Detection An unsupported toner cartridge
of an has been detected.
unsupported
F03A:Black toner cartridge
toner
position
cartridge
F03B:Yellow toner cartridge
position
F03C:Magenta toner cartridge
position
F03D:Cyan toner cartridge
position
LCF unit detect error 1
LCF unit detect error 2
Compensation Heater Temp high
Compensation Heater Temp Low
Duplex Software Error
Remedial measure
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.
Remove the
available setting
number tray.
Install the cartridge
of the specified
in the specified
position.
Replace it with an
appropriate toner
cartridge.
Replace the LCF
Unit Board
Turn on the
power,after 30min.
Replace the
Duplex Unit
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