Oki MC760 User Manual

45376001TH Rev.1
156 /
Oki Data CONFIDENTIAL
7. Troubleshooting and repair procedure
Error code Cause Error details Remedial measure
C56A
C56B
C56C
C56D
Option unit
I/F error
(C56A=Duplex
Unit,
C56B=2nd Tray,
C56C=3rd Tray
C56D=4th Tray)
Does this error recur?
Does this error recur?
Ye s
Ye s
Turn on the power
again.
Check for sure
connection of the
connectors.
Replace the option
unit.
C91D RFID Reader
not Installed
RFID read device error
Does this error recur?
Ye s
Ye s
Check for normal
connection of the
RFID R/W board.
Replace the RFID
R/W. Replace the
PU board.
C91A
C91B
C91C
RFID reader
I/F error
Interface error with the RFID
reader is detected.
01: Communication error
between the RFID reader
and the engine circuit
boards.
02: Error in the wireless circuit
of the RFID reader
03: Communication error
between the RFID reader
and the toner cartridge.
04: Error is detected in the RFID
toner cartridge.
(In more than 4)
01: Same as the
error no. C91D
02: Replace the
RFID R/W
board.
03: Check for
normal
connection of
the antenna
cable.
04: Check if
quantity of the
toner cartridge
is correct or
not.
C37A~
C37D
Abnormal
temperature
of belt
C37A: Short-
circuit
C37B: Open
circuit
C37C: High
temperature
C37D: Low
temperature
Is the cable from belt thermistor
to the high voltage board
connected normally?
Does this error recur?
No
Ye s
No
Re-connect the
cables normally.
Turn on the power
again.
Replace the belt
thermistsor.
C020 Image drum
lock error
The ID does not rotate normally.
Does the error display recur
when the power is turned off
once and back on?
Ye s
Ye s
Check if the ID is
installed normally
or not.
Replace the ID
unit.
Replace the ID
motor.
Error code Cause Error details Remedial measure
C4E3 Fuser motor
lock error
Fuser does not rotate normally.
Does this error recur?
Ye s
Ye s
Check if the
fuser is installed
normally or not.
Replace the fuser.
Replace the fuser
motor.
C4FA Media
wrapped
around the
fuser error
Media has wrapped around the
fuser.
Turn off the power.
Replace the fuser.
C5B2
C5B3
C5B4
Tray-2 / 3 /4
CPU clock
frequency
error
C5B2=2nd Tray
C5B3=3rd Tray
C5B4=4th Tray
Replace the Tray
board GOH-11.
F041 Over than
available
setting
number tray
detection
error
Over than available setting
number tray is installed.
Remove the
available setting
number tray.
F042 Error due
to detection
of the toner
cartridges
of the same
color
Two or more toner cartridges of
the same color are detected.
Install the cartridge
of the specified
in the specified
position.
F03A~
F03D
Detection
of an
unsupported
toner
cartridge
An unsupported toner cartridge
has been detected.
F03A:Black toner cartridge
position
F03B:Yellow toner cartridge
position
F03C:Magenta toner cartridge
position
F03D:Cyan toner cartridge
position
Replace it with an
appropriate toner
cartridge.
C1DA
C1DB
LCF unit detect error 1
LCF unit detect error 2
Replace the LCF
Unit Board
C46A
C46B
Compensation Heater Temp high
Compensation Heater Temp Low
Turn on the
power,after 30min.
C5A2 Duplex Software Error Replace the
Duplex Unit

Oki MC760 Specifications

General

Brand	Oki
Model	MC760
Category	Printer
Language	English