Ricoh SP 8400DN Field Service Manual page 1750

5.
Remove the LCD I/F cable [A] from the micro computer board.
6.
Remove the FFC [A] from the micro computer board.
•
Pull out the black part to unlock the connector, and then remove the FFC.
7. Micro computer board [A]
•
By factory default, the following switches of the DIP switch [A] on the micro computer board are set to
ON: No.1, No.3, No.6 and No.7. When installing the operation panel unit, make sure that the DIP switch
1.Replacement and Adjustment
5