Ricoh M022 Service Manual page 666

6. Troubleshooting
No. Type
532 D
No. Type
6
533 D
664
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Details (Symptom, Possible Cause, Troubleshooting Procedures)
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 BCU
1. Check or replace the harness.
2. Replace the laser unit fan.
3. Replace the BCU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
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
• Defective BCU
1. Check or replace the harness.
2. Replace the fusing front fan.
3. Replace the BCU.
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