Ricoh A230 Service Manual page 354

SERVICE CALL CONDITIONS
SC 405: Transfer belt error
-Definition- [B]
The transfer belt does not move away from the drum during ID sensor pattern
checking.
- Possible causes -
• Main motor/drive malfunction
• Transfer belt position sensor defective
• Poor transfer belt position sensor connection
SC440: Main motor lock
-Definition- [B]
A main motor lock signal is not detected within 2 seconds after the main motor
turns on.
- Possible causes -
• Too much load on the drive mechanism
• Main motor defective
SC490: Exhaust fan motor lock
-Definition- [B]
An exhaust fan motor lock signal is not detected within 5 seconds after the
exhaust fan motor turns on.
- Possible causes -
• Too much load on the drive mechanism
• Exhaust fan motor defective
• Poor fan motor connector connection
SC492: Cooling fan motor lock
-Definition- [B]
A cooling fan motor lock signal is not detected within 5 seconds after the cooling
fan motor turns on.
- Possible causes -
• Too much load on the drive mechanism
• Cooling fan motor defective
• Poor fan motor connector connection
A230/A231/A232
7-10
SM