Ricoh M065 - Page 328

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