Oki C810 - Page 177

44015503TH Rev. 1
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Oki Data CONFIDENTIAL
7. TROUBLESHOOTING PROCEDURE
Display Cause Error details Remedial measure
Contact the Service
center.
150: Error
~
153: Error
The ID unit
fuse has blown
out.
(150=
Yellow,
151=Magenta,
152=Cyan,
153=Black)
Is the ID unit installed
normally?
Does this error recur?
Does the printer recover from
the error when the PU/PRZ
board is replaced?
No
Yes
Yes
No
Re-install the ID unit.
Turn on the power again.
After checking for the sure
connection of the cable
between PRZ board and
PU board, replace the
PRZ board.
Replace the PU board.
Contact the Service
center.
154: Error
The belt unit
fuse has blown
out.
Is the belt unit connected
normally?
Does this error recur?
No
Yes
Yes
Re-install the belt unit.
Turn on the power again.
After checking for the sure
cable connection, replace
the PU board.
Contact the Service
center.
155: Error
The fuser unit
fuse has blown
out.
Is the fuser unit installed
normally?
Does this error recur?
No
Yes
Yes
After cleaning the
connecting connector of
the fuser unit, re-install
the fuser unit.
Turn on the power again.
After checking for the sure
cable connection, replace
the PU
Contact the Service
center.
160: Error
~
163: Error
Toner sensor
detection error.
(160=
Y,
161=M,
162=C,
163=K)
This error
does not occur
with the default
settings.
Is the toner cartridge installed?
Is the lock lever of the toner
set?
Does this error recur?
No
No
Yes
Install the toner cartridge.
Rotate the lock lever of
toner to the lock position.
Turn on the power again.
Replace the toner sensor
assembly.
Contact the Service
center.
167: Error
Thermistor
Slope Error
Is the error message
displayed?
Does this error recur? Yes
Turn on the power again.
After leaving the printer
for 30 minutes, turn on
the power again.
Contact the Service
center.
168: Error
Compensation
Thermistor
Error
Is the error message
displayed?
Does this error recur? Yes
Turn on the power again.
After leaving the printer
for 30 minutes, turn on
the power again.
Display Cause Error details Remedial measure
Contact the Service
center.
169: Error
Upper side
Thermistor
Error
Is the error message
displayed?
Does this error recur? Yes
Turn on the power again.
After leaving the printer
for 30 minutes, turn on
the power again.
Contact the Service
center.
170: Error
171: Error
Note)
Short-circuit
or open-
circuit of fuser
thermistor is
detected.
Does this error recur? Yes
Turn on the power again.
Replace the fuser unit.
Contact the Service
center.
172: Error
173: Error
The fuser
thermistor
has detected
an abnormal
temperature
(high
temperature
or low
temperature.)
Does this error recur?
Does this error recur?
Yes
Yes
Turn on the power again.
Replace the fuser unit.
Replace the low voltage
power supply unit.
Contact the Service
center.
174: Error
The backup
roller
thermistor
is detected
of its short-
circuit. (At high
temperature)
Does this error recur? Yes
Turn on the power again.
Replace the fuser unit.
Contact the Service
center.
175: Error
Note)
The backup
roller
thermistor is
detected of its
open-circuit.
(At low
temperature)
Does this error recur? Yes
Turn on the power again.
Replace the fuser unit.
Contact the Service
center.
176: error
177: error
The backup
roller
thermistor
has detected
an abnormal
temperature
(high
temperature
or low
temperature.)
Does this error recur?
Does this error recur?
Yes
Yes
Turn on the power again.
Replace the fuser unit.
Replace the low voltage
power supply unit.