Ricoh D104 Field Service Manual page 591

No. Type
Laser unit fan error
The motor lock signal error is detected for 10 seconds after the motor lock signal
was first detected.
• Defective laser unit fan
• Disconnected or defective harness
• Defective drive board
532 D
• Defective BCU
1. Check or replace the harness.
2. Replace the laser unit fan.
3. Replace the laser unit fan motor.
4. Replace the DRB.
5. Replace the BCU.
No. Type
Fusing front fan error
The motor lock signal error is detected for 10 seconds after the motor lock signal
was first detected.
• Defective fusing front fan
• Disconnected or defective harness
533 D
• Defective DRB
• Defective BCU
1. Check or replace the harness.
2. Replace the fusing front fan.
3. Replace the DRB.
4. Replace the BCU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC Tables
6
589