Ricoh D143 Field Service Manual page 810

6. Troubleshooting
No. Type
530 D
No. Type
531 D
No. Type
532
D
-01
-02 D
-03 D
-04 D
808
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Fusing fan error
The IOB does not receive the lock signal 100 ms after turning on the fusing fan.
• Defective fusing fan motor or connector disconnection
• Defective IOB
1. Check the connector and/or replace the fusing fan motor.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
QSU fan error
The machine does not detect the fan motor lock signal for 100 ms while the QSU
fan turns on.
• Disconnected harness
• Overload on the QSU fan motor
• Defective QSU fan motor
• Defective IOB
1. Check or replace the harness.
2. Replace the QSU fan.
3. Replace the IOB.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Ventilation fan (at the left side of the machine) motor error: front end
Ventilation fan (at the left side of the machine) motor error: rear end
Ventilation fan (at the left side of the machine) motor error: front in the middle
Ventilation fan (at the left side of the machine) motor error: rear in the middle