Ricoh D131 Service Manual page 546

USB I/F Error 1
The USB driver is unstable and caused an error. The USB I/F cannot
SC857 D
be used.

USB board or controller board defective
Data encryption conversion error
SC858 B
These are errors of the HDD Data Encryption Option D377.
00 Key Acquisition
Key could be acquired.

Replace the controller board
01 HDD Key Setting Error
The key was acquired but the HDD could not be set.

Turn the machine power off/on several times.

Replace the controller board.
02 NVRAM Read Error
NVRAM data conversion failed (mismatch with nvram.conf)

Replace the NVRAM
30 NVRAM Before Replace Error DFU
May occur during development.

Turn the machine power off/on several times.

Replace the controller board.
31 Other Error
An unexpected error occurred while data was being converted. This
error is the same as SC991. See SC991 below.
SM Appendix 2-79
SC800: Overall System
GW
GW
D131/D132/D133