Canon GP160DF Service Handbook page 161

##0323 [RX] Abnormal nBD signal output in the laser scanner unit
Cause
• Internal unit fault. (laser light intensity does
not meet the specification)
• Internal unit fault. (abnormal nBD signal
timing)
##0324 [RX] Abnormal number of laser scanner motor revolutions
Cause
• Internal unit fault.
##0325 [RX] Main motor/exhaust fan trouble
Cause
• Internal unit fault. (main motor does not
turn)
• Internal unit fault. (exhaust fan does not
turn)
CHAPTER 5 SELF DIAGNOSIS
Countermeasure
(1) Check the connection of the cable
between the laser scanner unit and the
DC controller PCB.
(2) Replace the laser scanner unit.
(3) Replace the DC controller PCB.
(1) Check the connection of the cable
between the laser scanner unit and the
DC controller PCB.
(2) Replace the laser scanner unit.
(3) Replace the DC controller PCB.
Countermeasure
(1) Check the connection of the cable
between the laser scanner unit and the
DC controller PCB.
(2) Replace the laser scanner unit.
(3) Replace the DC controller PCB.
Countermeasure
(1) Check the connection between the main
motor and the DC controller PCB.
(2) Check that the main motor is not over-
loaded.
(3) Replace the main motor.
(4) Replace the DC controller PCB.
(1) Check the connection between the fan
and the DC controller PCB.
(2) Replace the fan
(3) Replace the DC controller PCB.
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