Ricoh Pro 8300S - NV Memory Error 1; Sc720-87

1.SC Codes
250
SC720-87
Error Name
NV Memory Error 1
Pattern
C
Error Condition
Writing to the memory inside Finisher SR5110/SR5120 failed.
Major Cause
 Power of downstream device is not turned on.
 NV memory connection failure or defective NV memory
*Component: Memory on the controller board of Finisher SR5110/SR5120
Solution
1. Turn the main power to OFF, and check if the NV memory is correctly installed in the IC socket.
Check by removing and reinstalling it.
2. Replace the NV memory.
3. Replace the board of Finisher SR5110/SR5120.
* Before replacing the board, check if the SC occurs in the same way.