Ricoh Pro 8300S - Sc501-05; Tray 1 HP Sensor Error

1.SC Codes
89
Major Cause
 Bottom plate is stuck.
 Connector is not connected properly.
 Tray lift motor (Tray 1) (BM1) is damaged.
 RYB, IOB are defective.
Solution
In addition to checking for sensor/actuator defect by eye, also execute Input/Output Check as
necessary.
1. Check if the Tray 1 bottom plate moves.
2. Check the connectors of the harnesses related to tray lift.
Reconnect the connectors.
3. Check the electrical components related to tray lift (tray lift motor (Tray 1) (BM1)).
If they are defective, replace the components.
4. Replace the RYB.
5. Replace the IOB.
SC501-05
Error Name
Tray 1 HP Sensor Error
Pattern
C
Error Condition
Tray 1 HP sensor fails to detect.
Major Cause
 Rear fence is stuck or damaged.
 Harnesses are not connected properly, or are damaged.
 Rear fence HP sensor (SEN38) is damaged.
 Rear fence motor (BM4) is damaged.
 RYB, IOB are defective.
Solution
1. Check if the Tray 1 rear fence moves. (Check if there are foreign objects obstructing it)
2. Reconnect the harnesses near the rear fence HP sensor.
3. Replace the harnesses.
4. Replace the rear fence HP sensor (SEN38).
5. Replace the rear fence motor.