Ricoh Pro 8300S - Sc501-04; Tray 1 Lift Motor Overload Error

1.SC Codes
88
Pattern
B
Error Condition
An error is detected while the Tray 1 is lowering (three times consecutively).
Major Cause
 Bottom plate is stuck.
 Connector is not connected properly.
 Lower limit sensor (SEN40) is damaged.
 Tray lift motor (Tray 1) (BM1) is damaged.
 Harnesses are 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 lower limit detection (lower limit sensor (SEN40) /
pickup roller solenoid).
Reconnect the connectors.
3. Check the electrical components related to lower limit detection (lower limit sensor (SEN40) / tray
lift motor (Tray 1) (BM1)
If they are defective, replace the components.
4. Check the harness of the lower limit sensor (SEN40).
If the harness is defective, replace it.
5. Replace the RYB.
6. Replace the IOB.
SC501-04
Error Name
Tray 1 Lift Motor Overload Error
Pattern
B
Error Condition
Wire overload is detected because the bottom plate is stuck when Tray 1 is lifting (three times
consecutively).