Ricoh M160 - Page 260

Service Call
M160/M161 6-16 SM
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC544-00 A
Fusing (Center) thermopile high-temperature detected
(hardware)
The hardware high-temperature error sensor flag is detected.
 Damaged triac (shorted)
 Failed engine control board
 Failed fusing thermopile
 Failed fusing thermistor
 Abnormal fusing control software behavior
 The PWM signal is continuously supplied from the IH
inverter (due to a software or temperature sensor error).
 Clear the SP: fusing SC.
 Replace the PSU.
 Replace the Engine Board.
 Replace the fusing thermopile.
 Replace the Fusing Unit.
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC545-00 A
Fusing (Center) lamp stays ON
The thermistor (center) has not detected the target temperature,
even after the fusing lamp stays ON for more than 30 seconds
after reloading.
 Deformed or floating thermistor
 Broken fusing lamp wire
 The overtemperature prevention mechanism started
working
 Clear the SP: fusing SC.
 Replace the fusing thermistor.
 Replace the fusing (Center) lamp.