Ricoh G165 Service Manual page 139

Zero Cross Frequency Error
The detection error occurs ten times consecutively in ten zero cross signal
detections. This error is defined when the detected zero cross signal is 17 or
less/27 or more for 0.2 seconds.
Defective fusing lamp relay
Unstable input power source
557
1. Check the power supply source.
2. Replace the fusing unit.
Execute "Fuser SC Reset" with SOM (printer models) or "Engine
Maintenance Menu" (MF model) to recover the machine after completing
the recovery procedure. Otherwise, the machine continues to issue this
SC code and cannot be operated.
Consecutive Fusing Jam
The paper jam counter for the fusing unit reaches 3. The paper jam counter is
cleared if the paper is fed correctly.
This SC is activated only when this function is enabled with "Fuser SC Detect" in
the SP Mode 2 tab (printer model) or "Engine Maintenance" (MF model) (default
"OFF").
Defective fusing unit
559
Defective fusing control
1. Clear this SC to send a command after a jam removal.
2. Turn off this function after a jam removal.
Execute "Fuser SC Reset" with SOM (printer models) or "Engine
Maintenance Menu" (MF model) to recover the machine after completing
the recovery procedure. Otherwise, the machine continues to issue this
SC code cannot be operated.
SM 4-15 G165/G166/G167/G181/G183/G184
Service Call Conditions