Ricoh Pro 8320 - 720-52: Fold Plate Motor Error; 720-53: Bottom Fence Motor Error; 720-54: Stack Transport Unit Motor Error; 720-55: Booklet Pressure Release Motor Error

1.SC Codes
230
Replace the harness if it is damaged.
3. Motor/sensor defective
Check if the motor or sensor is damaged or there are missing parts, whether the HP sensor turns
off and on, whether the motor rotates on its own, whether it is overloaded, and whether the drive is
transmitted.
Replace the motor or sensor.
4. Board defective
Replace the main board of Finisher SR5110/SR5120
* Before replacing the board, check if the SC occurs in the same way.
SC720-52 to 55
Error Name
 720-52: Fold Plate Motor Error
 720-53: Bottom Fence Motor Error
 720-54: Stack Transport Unit Motor Error
 720-55: Booklet Pressure Release Motor Error
Pattern
B
Error Condition
 Home position is not detected within the specified time when moving to the home position. (The
first four times are reported as jams. An SC is issued when it is repeated five times.)
 Home position remains detected after a specified time after leaving the home position. (The first
four times are reported as jams. An SC is issued when it is repeated five times.)
 The motor driver detected an error. (The SC is issued as soon as it is detected once.)
Major Cause
 Power of downstream device is not turned on.
 Motor is defective
 Connector is not connected properly
 Harness is damaged
 There is overload.
 HP sensor is defective.
 Board is defective.
Corresponding Motor/Sensor
 720-52:
Fold plate motor <STM13>
Fold plate HP sensor <SN27>