Ricoh M0A0

6.Troubleshooting
250
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
 Harness damaged
 Failure in the BiCU
 Replace the fan motor.
 Check the connector.
 Replace the harness.
 Replace the BiCU.
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC532-
00
D
PSU Cooling fan error
The fan motor lock (rotating state) signal is sampled at 100 ms intervals and the machine fails to
receive the lock signal 50 times in succession.
 Failure in the motor
 Loose connector
 Harness damaged
 Failure in the BiCU
 Replace the fan motor.
 Check the connector.
 Replace the harness.
 Replace the BiCU.
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC541-
00
A
Broken fusing (Center) thermistor wire
The condition whereby the temperature is -20 deg C or less for 5 seconds has been detected
10 times or more.
 Broken thermistor wire
 Bad connector contact
 Clear the SP: fusing SC.
 Check the connector connection.
 Replace the fusing (Center) thermistor.
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC542-
01
A
Fusing lamp (Center) not reloaded (Deformed thermistor)
The heater thermistor has increased by less than 20 degrees C in 3 seconds 5 times in a row.
 Deformed or floating thermistor
 Input voltage out of range
 Clear the SP: fusing SC.
 Replace the thermistor.