Ricoh B230 Service Manual page 278

No. Type
501 B Paper Tray 1 error
502 B Paper Tray 2 error
When the tray lift motor is turned on, (if the upper limit is not detected
within 10 seconds), the machine asks the user to reset the tray. If this
condition occurs three consecutive times, the SC is generated.
1.
2.
3.
B230/B237
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Defective paper lift sensor
Defective tray lift motor
Defective bottom plate lift mechanism
Defective IOB
Check if the bottom plate smoothly moves up and down manually.
Check and/or replace the tray lift motor.
Replace the IOB.
4-38 SM