Ricoh Pro 8300S - Sc730-01; Sc730-03; Stacker 1: Downstream Device Communication Error; Stacker 1: Top Door Power Supply Error

1.SC Codes
285
SC730 to 740
SC730-01
Error Name
Stacker 1: Downstream Device Communication Error
Pattern
D
Error Condition
Communication error between stacker and downstream device is detected.
Major Cause
 Power of downstream unit is not turned on.
 Power cord is disconnected, or damaged.
 Interface cable (downstream device) is disconnected, or damaged.
 Downstream device board is defective.
 Control board is defective.
Solution
1. Turn the power off and on to check the SC occurs again.
2. Reconnect the downstream power cord.
3. Reconnect the interface cable (downstream device).
4. Replace the downstream device power cord.
5. Replace the interface cable (downstream device).
6. Replace the downstream device board.
7. Replace the controller board.
SC730-03
Error Name
Stacker 1: Top Door Power Supply Error
Pattern
D
Error Condition
Protection fuse blown when the power was being turned ON
Major Cause
 Power of downstream unit is not turned on.