Ricoh SP 8400DN Field Service Manual page 1142

4.Replacement and Adjustment
17. Check the factory setting sheet and the SMC data printout from step 2, and set the user tool and SP settings
so they are the same as before.
Controller Board
•
Keep NVRAM away from any objects that can cause static electricity. Static electricity can damage
NVRAM data.
Special Procedure for Machines that have a Self Encrypting Drive (SED) Installed
•
The machine holds data, linking the controller board and SED, created automatically during SED
installation. The data, however, will not be deleted automatically at controller board replacement.
Therefore, before replacing a controller board, you must delete the link data manually so that the
machine can create new link data.
•
Do the following steps when doing the replacement.
•
Execute [Erase All Memory] on the operation panel
[System Settings] – [Administrator Tools] – [Erase All Memory]
•
Turn OFF the main power switch
•
Replace the controller board
•
Turn ON the main power switch
•
Do not turn the main power ON after step 3, until after you replaced the board.
1.
Remove the left rear cover.
2. Remove the controller cover.
3.
Remove the controller box cover.
4. Remove the screws of the controller bracket [A].
404
(Left Rear Cover)
(Controller Cover)
(Controller Box Cover)