Ricoh D143 Field Service Manual page 813

No. Type
AC controller board fan error
The machine does not detect the fan motor lock signal for 100 ms while the AC
controller board fan turns on.
• Disconnected harness
• Overload on the AC controller board fan motor
538 D
• Defective AC controller board fan motor
• Defective IOB
1. Check or replace the harness.
2. Replace the AC controller board fan.
3. Replace the IOB.
No. Type
Fusing/Paper exit motor error
The IOB does not receive the lock signal 100 ms after turning on the fusing/
paper exit motor.
• Motor overload
540 D
• Defective fusing/paper exit motor
• Shorted +24V fuse on the PSU
1. Check or replace the harness.
2. Replace the fusing/paper exit motor.
3. Replace the +24V fuse on the PSU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Service Call
811