Ricoh M0A0 Service Manual page 280

6.Troubleshooting
SC No. Level
SC855-02 B
SC No. Level
SC858-00 A
SC No. Level
SC858-01 A
SC No. Level
SC858-02 A Data encryption conversion error (NVRAM read/write error)
A serious error occurred after data conversion during an attempt to update the encryption key.
NVRAM is defective


SC No. Level
SC858-30 A Data encryption conversion error (NVRAM Before Replace error)
A serious error occurred after data conversion during an attempt to update the encryption key.
Software error such as conversion parameters being invalid.
Replace the Controller Board.
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Error Name/Error Condition/Major Cause/Solution
Wireless LAN board error (driver initialization failure)
Wireless LAN board error (wireless LAN card: 802.11 is covered)

Defective wireless LAN board

Loose connection

Turn the main power off/on.

Replace wireless LAN board
Error Name/Error Condition/Major Cause/Solution
Data encryption conversion error (Key error)
A serious error occurred during an attempt to update the encryption key.

Data in the USB Flash etc. is corrupted

Communication error because of electromagnetic interference etc.

Controller board is defective
Replace the Controller Board.
Error Name/Error Condition/Major Cause/Solution
Data encryption conversion error (HDD Key Setting Error)
A serious error occurred during an attempt to update the encryption key.

Data in the USB Flash etc. is corrupted

Communication error because of electromagnetic interference etc.

Controller board is defective
Replace the Controller Board.
Error Name/Error Condition/Major Cause/Solution
Replace the NVRAM.
Replace the Controller Board.
Error Name/Error Condition/Major Cause/Solution