Ricoh MP C6502SP Field Service Manual page 1104

5. Troubleshooting
SC483
SC No.
D137 RTB 72
SC483-00
1102
Level Error Name/Error Condition/Major Cause/Solution
Drum cleaning motor: Y: Lock
Error detected by the TDCU.
If a command sent from the TDCU indicates an error, the engine issues an
SC.
ASAP command: Motor lock detection setting value (engine to TDCU):
0x5B
ASAP command: SC detection notification (TDCU to engine):
0x57_0x01
Details:
When the motor is on, each lock signal is checked every 100
milliseconds. If the High status is detected 20 times consecutively, the
machine determines that the motor is not running correctly. The machine
issues an SC and stops the motor.
D
• Motor defective
• Connecter disconnected
• Harness broken
• IOB defective
• Unit torque increased.
• Replace the motor.
• Reconnect the connector.
• Replace the harness.
• Replace the IOB.
• Replace the unit.
• Replace the driven unit.