Ricoh B230 Service Manual page 281

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Tray 4 error (Paper Feed Unit or LCT)
For the two-tray paper feed unit
When the tray lift motor is turned on, the upper limit is not detected
within 10 seconds. If this condition occurs three consecutive times, the
SC is generated.
For the LCT
504-01 B
If the upper or lower limit is not detected within 8 seconds when the tray
lift motor is turned on to lift up or lower the tray
Defective tray lift motor or connector disconnection
Defective lift sensor or connector disconnection
1. Check the cable connections.
2. Check and/or replace the defective component.
SM 4-41 B230/B237