Ricoh MD-P2 Field Service Manual page 201

SC543
High Temperature Detection Error
RTB 16
RTB 20
This SC is issued if one of following conditions occurs:
• The thermistor (center) detects 245°C or thermistor (end) detects 230°C.
• The thermistor (center) detects a 14°C increment or more for five seconds at 220°C or
543
• Defective I/O control (EGB)
A
• Defective EGB
• Execute "SC Reset; Fusing SC" with SP5-810-001 to recover the machine after
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
545
• Defective fusing lamp
A
• Execute "SC Reset; Fusing SC" with SP5-810-001 to recover the machine after
Zero Cross Error
The zero cross signal is not detected for three seconds even though the fusing lamp relay is on
547
after turning on the main power or closing the front door.
D
• Defective fusing lamp relay
more or the thermistor (end) detects a 9°C increment or more for five seconds at 160°C
(Warming Up), 170 °C (Standby), or 180°C (Print) or more.
1. Replace the EGB
completing the recovery procedure. Otherwise, the machine continues to issue this SC
code and cannot be operated.
1. Replace the fusing unit.
2. Replace the fusing lamp.
completing the recovery procedure. Otherwise, the machine continues to issue this SC
code and cannot be operated.
1. Turn the main power switch off and on.
SC Conditions
6
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