Ricoh A-P4, Service Manual

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The fusing unit drive release mechanism automatically disengages the fusing unit drive gear [A] when the
right door [B] is opened.
When the right cover is opened, the actuator plate [C] pulls release wire [D]. The wire pulls the fusing drive
gear bracket [E] and the fusing unit drive is disengaged.
Fusing Entrance Guide Shift Mechanism
The entrance guide [A] has two holes on each side to adjust for paper thickness to prevent creasing.
Normally, the left screw hole [C] on each side is used.
For thin paper, use screw holes [B] to move the entrance guide to the left. This setting allows more direct
access to the gap between the hot and pressure rollers, and prevents thin paper from buckling against the
hot roller which can cause blurring at the leading edge of the copy.
6. Details
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