Ricoh D146 Service Manual page 141

Bridge Unit BU3070
7. Open the right cover.
8. Main power switch cover [A] ( ×1).
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Remember that there is a tab at the positions in the blue circles.
9. Attach the bracket [A] ( ×1).
10. Attach the main power switch cover, and close the duplex unit.
11. Attach the bridge unit to the machine ( ×2, left rear is a knob screw [A]).
D146/D147/D148/D149/D150 2-70 SM