Ricoh IM 550F Field Service Manual page 306

Remove the ground screw.
2.
Open the transparent film [A]. (hook×2)
3.
Disconnect the two connectors, and then release them from the harness guide [A].
4.
Open the rear upper cover [A].
5.
Release the left hinge [A] of the rear upper cover [B] by slightly bending the rear upper cover
6.
4.Replacement and Adjustment
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