Ricoh G165 Service Manual page 137

High Temperature Detection Error
This SC is issued if one of following conditions occurs:
The thermistor (center) detects 255°C or thermistor (end) detects 245°C.
The thermistor (center) detects a 3°C increment or more for five seconds at
220°C or more or the thermistor (end) detects a 4°C increment or more for
five seconds at 210°C or more.
543
Defective I/O control (EGB)
Defective EGB
1. Replace the EGB
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.
Heating Lamp Full-Power Error
The fusing lamp is fully-powered for a certain time while the fusing unit stays in the
stand-by mode and is not rotating.
Deformed thermistor
Thermistor not in the correct position
Defective fusing lamp
545
1. Replace the fusing unit.
2. Replace the fusing lamp.
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.
SM 4-13 G165/G166/G167/G181/G183/G184
Service Call Conditions