Ricoh D131 - Page 498

SC500: Feed, Transport, Duplex, and Fusing
SM Appendix 2-31 D131/D132/D133
Appendix:
Service Call
Conditions
SC542-001 A
Fusing temperature warm-up error 1: Center themistor
The center thermistor that touches the hot roller determined that
the hot roller failed to reach the warm-up temperature within the
prescribed time.
 Fusing lamp disconnected
 Thermistor warped, out of position
 Thermostat has opened
SC542-002 A
Fusing temperature warm-up error 2: Center themistor
The center thermistor that touches the hot roller determined that
the hot roller failed to reach 100
o
within the prescribed time.
 Fusing lamp disconnected
 Thermistor warped, out of position
 Thermostat has opened
SC542-003 A
Fusing temperature warm-up error 3: Center themistor
The center thermistor that touches the hot roller determined that
the hot roller failed to reach 100
o
within the prescribed time.
 Fusing lamp disconnected
 Thermistor warped, out of position
 Thermostat has opened
SC543 A
Fusing lamp overheat error 1 (software)
Central thermistor detected a temperature of 240°C at the center of
the hot roller. Fusing temperature control software error
 PSU defective
 IOB defective
 BICU defective