Ricoh D104 Field Service Manual page 585

No. Type
ITB unit motor error
The motor LOCK signal is not detected for more than two seconds while the motor
START signal is on.
• Motor overload
• Defective ITB unit motor
• Defective or disconnected connector
441 D
Check the operation of the ITB unit motor with SP5804-051.
No operation:
1. Check the harness of the ITB unit motor.
2. Check if the cleaning blade of the ITB cleaning unit is rolled up.
3. Replace the ITB unit motor.
4. Replace the ITB unit.
No. Type
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.
442 D
• Disconnected cable
Check the operation of the ITB unit motor with SP5804-077.
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.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC Tables
6
583