Ricoh SP 8400DN Field Service Manual page 1244

6.Troubleshooting
to the following screen, and self-diagnosis starts.
4. After the end of detailed self-diagnosis, a "Self-diagnosis results report" is automatically printed.
•
If a centronics loopback connector is not fitted, a centronics diagnosis error (SC 835) is generated.
HDD-related Message
When an error occurs to the HDD, the HDD abnormality message appears on the operation panel and the screen
for formatting is displayed. Also when replacing the HDD, a message "Hard Disk is replaced." appears on the
operation panel and the screen for formatting is displayed.
Refer to the table shown below for the conditions of the message display.
Even when replacing the controller board, a banner "Hard Disk is replaced." appears. It is because the machine
recognizes HDD has been replaced when the controller board that does not hold the HDD identification
information is attached.
Message list
Message
SC870
Hard Disk will be formatted
due to problem with Hard Disk.
Problem with the Encryption
Key for Hard Disk. Format
506
Display Normal/
Type Abnormal
banner abnormal
pop-up abnormal
formatting
button
pop-up abnormal
formatting
Error Condition/ Major Cause/ Solution
The HDD cannot be accessed at power-on.
NVRAM defective
Turn the main power off/on to initialize the
machine.
*When replacing the NVRAM, if possible,
back up the address book before replacing the
NVRAM and restore it after replacing the
NVRAM.
Management file on the HDD can not be read.
Or the file system can not be mounted.
HDD defective
Replace the HDD.
The encryption key for the HDD is abnormal.
HDD defective