Ricoh D131 Service Manual page 1361

Booklet Stapling (B804 Only)
1:
The last sheet of the stack [1] enters the stapling tray. The jogger fences [2] jog the last
sheet into position (based on the width of the selected paper size) and then retract and stop
1 mm away from the sides of the stack.
2:
The pressure plate [3] and booklet pressure roller [4] press down on the sheet. The stack
feed out belt switches on and the pawl [5] on the feed out belt catches the bottom of the
stack and raises it. The stapling tray sensor [6] detects the trailing edge of the paper stack.
3:
The feed out belt [7] raises the stack to the prescribed stapling position and stops. The
jogger fences move to the sides of the stack and the booklet staplers [8] staple the stack.
SM 55 B804/B805/D373/D374/D612