Ricoh Pro 8320 - Downstream Device Communication Error; Sc720-01

1.SC Codes
212
SC720
SC720-01
Error Name
Downstream Device Communication Error
Pattern
D
Error Condition
 After successful communication between Finisher SR5110/SR5120 and the downstream device,
the downstream device failed to respond three times consecutively.
 After successful communication between Finisher SR5110/SR5120 and the upstream device, the
finisher failed to communicate with the downstream device within the prescribed period of time.
Major Cause
 The downstream device is not turned on.
 The power cord of the downstream device is disconnected.
 The interface cable of the downstream device is disconnected or defective
 Finisher SR5110/SR5120 controller board defective
 A PCB of the downstream device is defective.
* Part causing the error: Interface cable of the downstream device
Solution
1. Disconnected or incorrectly connected power cord of the downstream device
Check if it is connected correctly.
Connect the power cord if it is not connected correctly.
2. Check if the power of the downstream device is turned to on.
3. Check for disconnected/incorrectly connected interface cable between the finisher and the
downstream device.
Check if it is connected correctly.
Reconnect it if it is not connected correctly.
4. Disconnected or incorrectly connected connector of Finisher SR5110/SR5120
Check if there is a disconnected or incorrectly connected connector between the downstream
device interface connector and the main board of Finisher SR5110/SR5120.
Reconnect the connector if it is not connected correctly.
5. Damaged harness in finisher SR5110/SR5120
Check if the harness between the downstream device interface connector and the main board of
Finisher SR5110/SR5120 is damaged or exposed.
Replace the harness if it is damaged.