Ricoh D197 Service Manual page 1182

SC No. Level
SC840-00 D
SC No. Level
SC841-00 D
SC No. Level
SC842-01 B
SM
Error Name/Error Condition/Major Cause/Solution
EEPROM access error

During the I/O processing, a reading error occurred. The 3rd
reading failure causes this SC code.

During the I/O processing, a writing error occurred.

Defective EEPROM
-
Error Name/Error Condition/Major Cause/Solution
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.
-
Error Name/Error Condition/Major Cause/Solution
Insufficient Nand-Flash blocks (threshold exceeded)
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.
6-139
SC Tables: SC8xx
D197/D198/D199/D200/D201/D202