Ricoh Pro 8320 - Flat Fold Unit Motor Error; Sc720-61

1.SC Codes
237
SC720-61
Error Name
Flat Fold Unit 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 DCM drive software detected a motor drive error. (The first four times are reported as jams. An
SC is issued when it is repeated five times.)
Major Cause
 Power of downstream device is not turned on.
 Motor is defective
 Connector is not connected properly
 There is overload.
 Encoder is defective.
 HP sensor is defective.
 Board is defective.
*Motor: Flat fold unit motor <DCSM16>
*Sensor: Flat fold unit HP sensor <SN24>
Solution
1. Connector not connected properly
Check if the connectors between the main board of finisher SR5110/SR5120 and the motor are
connected correctly (whether they are disconnected or incorrectly connected).
Reconnect it if it is not connected correctly.
2. Damaged harness
Check if the harness between the main board of Finisher SR5110/SR5120 and the motor is
damaged or exposed.
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.