Ricoh B230 Service Manual page 284

No. Type
Fusing exit sensor fan error
The BICU does not receive the lock signal 10 seconds after turning on
the fusing fan motor.
534 D
1.
No. Type
PSU fan 1/2 error
The BICU does not receive the lock signal 10 seconds after turning on
the PSU fan 1/2 motor.
535 D
1.
No. Type
Controller fan error
The motor lock signal error is detected for 10 seconds after the motor
lock signal was first detected.
536 D
1.
B230/B237
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Defective fusing fan motor
Replace the fusing exit sensor fan motor (at the front right side of
the machine).
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Defective PSU fan motor 1/2
Replace the PSU fan motor 1/2
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Defective controller fan motor
Replace the controller fan motor.
4-44 SM