Ricoh M052 Service Manual page 449

857 D USB I/F Error
The USB driver is unstable and generated an
error. The USB I/F cannot be used. The USB
driver can generate three types of errors: RX,
CRC, and STALL errors. Only the STALL error
can generate this SC code.
858 A Data encryption conversion error
A serious error occurred during data encryption.
0 A Key acquisition error
1 A HDD key setting error
2 A NVRAM read/write error
30 A NVRAM error
31 A Other error
859 B HDD data encryption error
Encryption of data on the hard disk failed.
8 B HDD check error
Power loss during
6 B
encryption
10 B Data read/write error
SM
USB 2.0
disconnected
Controller board
defective
Replace the controller board
Turn the machine power off/on
If the error reoccurs, replace the controller
board
Replace the NVRAM
Turn the machine power off/on
If the error reoccurs, replace the controller
board
See SC991
Format the HDD
Format the HDD
See SC863 below
6-23
Service Call Conditions
M052/M053/M054