Ricoh PE-MF1, Service Manual

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• 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.
• 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.
545
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
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.
547
Zero Cross Error
The zero cross signal is not detected for three seconds even though the fusing lamp relay is on
after turning on the main power or closing the front door.
• Defective fusing lamp relay
1. Turn the main power switch off and on.
• 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.
Service Call Conditions
107
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