Ricoh M0A0 - Page 261

6.Troubleshooting
249
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
the operation panel.
 Bypass bottom plate clutch connector disconnected or other error
 Bypass bottom plate sensor connector disconnected or other error
 Bypass bottom plate sensor feeler stuck or other error
 Check and replace the bypass bottom plate sensor connector connection.
 Replace the bypass bottom plate sensor feeler.
 Replace the harness.
 Replace the BiCU.
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC520-
00
D
Main motor error
When the main motor is driven, the lock (state of rotation) signal is checked every 100
milliseconds. If the machine detects the lock signal in the High status 20 times in succession, it
reports this error.
 The main motor incurs too much load from a defective unit.
 The main motor is defective.
Replace the defective unit or the motor.
SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC530-
00
D
Fusing 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
SC531-
00
D
Development 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