Ricoh Pro 8320 - Corner Stapler Motor Error (Finisher Sr5090;Booklet Finisher SR5100)

1.SC Codes
261
SC721-44
Error Name
Corner Stapler Motor Error (Finisher SR5090/Booklet Finisher SR5100)
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.)
Major Cause
 Power of downstream device is not turned on.
 Motor is defective
 Connector is not connected properly
 Short circuit
 Harness is damaged
 There is overload.
 HP sensor is defective.
Corresponding components:
 Corner Stapler Unit (Corner Stapler Motor)
 Paper Exit Guide Plate Limit Switch [SW2]
 Controller Board
Solution
1. Connector not connected properly
Check all the connectors are correctly connected. (controller board, stapler unit, motor, sensor,
switch).
Reconnect the connector if it is not connected correctly.
2. Harness damaged
Check if the harness between the controller board and the stapler unit, or the harness between the
board and switch is damaged or exposed.
Replace the harness if it is not in good condition.
3. Board defective
Check if there are any traces of short circuit on the controller board. if so, replace it.