Ricoh D146 Service Manual page 183

Punch Unit PU3050
1. Take out of the box, and remove the orange tape and shipping retainers.
2. Pull out the finisher interface cable, and move it away from the machine.
Finisher rear cover [A] ( ×2).
3.
4. Remove the arm [A] of the guide plate from the finisher top cover ( ×1).
5. Open the finisher front cover, remove the three knobs [A], and remove the finisher inner cover
[B] ( ×3, ×1).
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Knobs with a lock mechanism are removed using a knob screwdriver or similar while
releasing the lock.
D146/D147/D148/D149/D150 2-112 SM