Exit Pawl Drive Mechanism - Ricoh PRIPORT VT 2000 Series Service Manual

28 February '91

9.2 EXIT PAWL DRIVE MECHANISM

[B]
[A]
[F]
[C]
[H]
[D]
[G]
[E]
[F]
The exit pawl [A] located in the center of the drum, guides the center of the
printing paper. As the master clamper [B] approaches the exit pawl, the exit
pawl moves away from the drum.
When the bearing of the pressure ON/OFF cam [C] comes to the top of the
pressure cam [D], the exit pawl drive cam [E] mounted on the pressure
ON/OFF cam, moves up. The exit pawl lever [F] then turns clockwise along
the surface of the exit pawl drive cam [E]. Therefore, the exit pawl also
comes near the drum until the stopper [G] contacts the adjusting screw [H].
This keeps a small clearance between the exit pawl and the drum surface
to enable the printing paper to feed to the vacuum unit.
As the pressure roller moves away from the drum, the exit pawl drive cam
[E] moves down and the exit pawl lever [F] turns counterclockwise. This
causes, the exit pawl to separate from the drum.
The exit pawl is held away from the drum when printing pressure is not
applied.
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