Ricoh SP 8400DN Field Service Manual page 1149

4.
Remove the PSU [A].
Controller Box
1.
Remove the left cover.
2. Remove the rear lower cover.
3.
Remove the controller box cover.
4.
Release the clamps and the connector on the upper side of the controller box.
5. Release the clamps on the side of the controller box.
(Left Cover)
(Rear Lower Cover)
(Controller Box
4.Replacement and Adjustment
Cover)
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