Ricoh G188 Service Manual page 331

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
1. Check or replace the harness of the pressure roller contact sensor.
2. Replace the pressure roller contact sensor.
3. Replace the pressure roller contact motor.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
IH inverter input voltage error
The IH inverter detects 70V or less/140V or more for 10 seconds.
Unusual input voltage
581 D
Disconnected CN981 on the IH inverter
Defective IH inverter
1. Check CN981 on the IH inverter.
2. Replace the IH inverter.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
IH inverter current error at power on
The output current from the IH inverter does not reach the proper value
when the IH inverter turns on.
Disconnected power input terminal 1 and 2
Defective IH inverter
582 D
Defective IH coil unit
Defective fusing unit
1. Check the power input terminals 1 and 2.
2. Replace the IH inverter.
3. Replace the IH coil unit.
4. Replace the fusing unit.
SM Appendix
Service Call Conditions
3-35 G188/G189