Ricoh SP 8400DN Field Service Manual page 1323

SC No. Type
•
-
SC No. Type
SC841-00 D EEPROM read data error
Mirrored data of the EEPROM is different from the original data in EEPROM.
Data in the EEPROM is overwritten for some reason.
-
No. Type
SC842- C Nand-Flash updating verification error
00
SCS write error (verify error) occurred at the Nand-Flash module when remote ROM or
main ROM was updated.
Nand-Flash defective
Turn the main power OFF/ON.
SC No. Type
SC842- B Insufficient Nand-Flash blocks (threshold exceeded)
01
At startup, or when machine returned from low power mode, the Nand-Flash status was read
and judged that the number of unusable blocks had exceeded threshold, and then SCS
generated the SC code.
Number of unusable blocks exceeded threshold for Nand-Flash
Replace the controller board.
SC No. Type
SC842- B Number of Nand-Flash block deletions exceeded
02
At startup, or when the machined returned from low power mode, the Nand-Flash was read
and judged that the number of deleted blocks had exceeded threshold, and then SCS
generated this SC code.
Number of blocks deleted exceeded threshold for Nand-Flash
Replace the controller board.
No. Type
SC845 Hardware Error Detected when the automatic firmware update
SC845- D Engine Board
01
SC845- D Controller Board
Error Name/Error Condition/Major Cause/Solution
Defective EEPROM
Error Name/Error Condition/Major Cause/Solution
Error Name/Error Condition/Major Cause/Solution
Error Name/Error Condition/Major Cause/Solution
Error Name/Error Condition/Major Cause/Solution
Error Name/Error Condition/Major Cause/Solution
6.Troubleshooting
585