Ricoh D131 - Page 501

SC500: Feed, Transport, Duplex, and Fusing
D131/D132/D133 2-34 SM Appendix
SC552-03 A
Fusing reload temperature error 3: End thermistor
The hot roller did not reach the prescribed temperature within 3 sec,
after the start of the fusing temperature control cycle.
 Fusing lamp disconnected
 Thermistor connector loose, broken, defective
 Thermistor out of position, installed incorrectly
 Thermostat open
SC553 A
Fusing thermistor error 4: End thermistor (software)
The end thermistor (contact type) was at 240°C (464°F) for more than
1 second. The temperature is read 10 times every second. (at 0.1 s
intervals).
 PSU defective
 IOB control board defective
 BICU control board defective
SC555 A
Fusing lamp error
After the start of the warmup cycle, a fusing lamp was at full power for
1.8 s but the hot roller did not turn.
 Thermistor bent, out of position
 Fusing lamp disconnected
 Circuit breaker opened
SC557 C
Zero cross signal error
High frequency noise was detected on the powe
r line.
 No action required. The SC code is logged and the operation of
the machine is not affected.