Ricoh Pro 8300S - Sc731-40; Stacker 2: Tray Lift Motor Error

1.SC Codes
295
Error Condition
 When moving to the home position, home position was not detected within the specified number of
pulses. (The first time it is reported as jam. An SC is issued the second time this occurs.)
 When moving from the home position, home position was still detected after specified number of
pulses. (The first time it is reported as jam. An SC is issued the second time this occurs.)
 Motor driver detected an error. (This SC is issued when the error was detected for the first time).
Major Cause
 Power of downstream unit is not turned on.
 Motor is defective.
 Connector is disconnected.
 There is overload.
 Home position sensor is defective.
 Motor driver overcurrent
 Motor driver overheat detected.
Corresponding components:
 731-20: Stacker 2 Proof Tray JG Motor (M7)
 731-21: Stacker 2 Shift Tray JG Motor (M2)
 731-30: Stacker 2 Shift Motor (M5)
 731-31: Stacker 2 Main Jogger Front Fence Motor (M8)
 731-32: Stacker 2 Main Jogger Rear Fence Motor (M9)
 731-33: Stacker 2 Main Jogger Fence Retraction Motor (M10)
 731-34: Stacker 2 Sub Jogger Motor (M13)
 731-35: Stacker 2 LE Stopper Motor (M12)
Solution
1. Turn the power off and on to check the SC occurs again.
2. Check the HP sensor connections.
3. Check the motor connections.
4. Replace the HP sensors.
5. Replace the motors.
6. Replace the controller board.
SC731-40
Error Name
Stacker 2: Tray Lift Motor Error
Pattern
B