Ricoh Aficio SP C440DN

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
534 D Fusing fan 1 error
The motor lock signal error is detected for 10 seconds after the motor lock signal
was first detected.
• Defective fusing fan 1
• Disconnected or defective harness
• Defective BCU
1. Check or replace the harness.
2. Replace the fusing fan 1.
3. Replace the BCU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
535 D Toner supply fan error
The motor lock signal error is detected for 10 seconds after the motor lock signal
was first detected.
• Defective toner supply fan
• Disconnected or defective harness
• Defective BCU
1. Check or replace the harness.
2. Replace the toner supply fan.
3. Replace the BCU.
6. Troubleshooting
584