Ricoh D025 Service Manual page 1273

In the left illustration, just before that stack is output:
The stack is on the stapling tray (1).
The mobile fence (2) has pushed the stack forward to start moving it out of the finisher.
The front and rear feed-out belts (3) and (4) have rotated the front and rear pawls (5)
and (6) behind the stack so they can push the stack out of the finisher.
In the right illustration, after stack output:
The mobile fence (driven by its cam, follower, and lever below) moved from its home
position (7) to (8) to start pushing the stack out of the finisher.
The feed-out belt pawls pushed the stack out of the finisher then stopped at their home
positions (9).
A long spring pulled the mobile fence back to its home position between the stationary
bottom fences (10)
SM 39
Paper Output
D372