Ricoh M065 Service Manual page 328

SC Tables
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
ITB contact motor error
The ITB contact sensor does not detect the movement of actuator at
the sensor while the polygon motor rotates.
442 D
Check the operation of the ITB unit motor with SP5804-083 or 084.
No operation:
1.
2.
Operation:
1.
2.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
ITB unit error
The machine detects the encoder sensor error.
443 C
1.
2.
3.
4.
5.
M065/M066
Dirty ITB contact sensor
ITB contact motor overload.
Defective ITB contact motor
Disconnected connector of ITB contact sensor or motor
Shorted 24 V fuse on the PSU.
Disconnected cable
Check the harness connection of the ITB contact motor.
Replace the ITB contact motor.
Check the harness connection of the ITB contact sensor.
Replace the ITB contact sensor.
Disconnect or defective harness
Defective ITB rotation sensor
ITB unit installation error
Defective ITB unit motor
ITB unit motor overload
Check the harness connection of the ITB rotation sensor.
Check the trash or scratch on the encoder disc surface of the ITB
rotation sensor.
Check if the ITB unit is correctly set.
Replace the ITB unit motor.
Replace the ITB unit.
3-18 SM Appendix