Oki MC760 Maintenance Manual page 156

Oki Data CONFIDENTIAL
Error code Cause
C3EA~ The ID unit
C3ED fuse has
blown out.
(C3EA=Y,
C3EB=M,
C3EC=C,
C3ED=K)
C3E2 The fuse has
blown out.
C4C0 The fuse has
blown out.
C3B3~ Toner sensor
C383 detection
error.
(C3B3=Y,
C3A3=M,
C393=C,
C383=K) This
error does
not occur with
the default
settings.
C44A Thermistor
Slope Error
45376001TH Rev.1
Error details Remedial measure
Is the ID unit installed normally? No Re-install the ID unit.
Does this error recur? Turn on the power
Does the printer recover from again.
Yes
the error when the PU/PRZ After checking
Yes
board is replaced? for the sure
connection of the
cable between
PRZ board and PU
No
board, replace the
PRZ board.
Replace the PU
board.
Is the belt unit connected No Re-install the belt
normally? unit.
Yes Turn on the power
again.
Does this error recur? Yes After checking
for the sure cable
connection,
replace the PU or
Board IBY.
Is the fuser unit installed No After cleaning
normally? the connecting
connector of the
fuser unit, re-install
the fuser unit.
Turn on the power
again.
Does this error recur? Yes After checking
for the sure cable
connection,
replace the PU or
Yes
Board IBY.
Is the toner cartridge installed? No Install the toner
cartridge.
Is the lock lever of the toner No Rotate the lock
set? lever of toner to the
lock position.
Turn on the power
again.
Yes Replace the toner
Does this error recur? sensor assembly.
Is the error message displayed? Turn on the power
Does this error recur? again.
Yes After leaving a
printer for 30
minutes, turn on
the power again.
Error code Cause
C41E Compensation Is the error message displayed?
Thermistor Does this error recur?
Error
C41A Short-circuit
or open-
C41B
circuit of fuser Does this error recur?
thermistor is
detected.
C449 The fuser
thermistor
C446
has detected Does this error recur?
an abnormal
temperature Does this error recur?
(high
temperature
or low
temperature.)
C41C The backup
roller
thermistor is Does this error recur?
detected of its
short-circuit.
(At high
temperature)
C41D The backup
roller
thermistor Does this error recur?
is detected
of its open-
circuit. (At low
temperature)
C468 The backup
roller
C466
thermistor Does this error recur?
has detected
an abnormal Does this error recur?
temperature
(high
temperature
or low
temperature.)
7. Troubleshooting and repair procedure
Error details Remedial measure
Turn on the power
again.
After leaving a
Yes
printer for 30
minutes, turn on
the power again.
Turn on the power
again.
Yes Replace the fuser
unit.
Turn on the power
again.
Yes Replace the fuser
unit.
Yes Replace the low
voltage power
supply unit.
Turn on the power
again.
Yes Replace the fuser
unit.
Turn on the power
again.
Yes Replace the fuser
unit.
Turn on the power
again.
Yes Replace the fuser
unit.
Yes Replace the low
voltage power
supply unit.
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