Panasonic DP-3510 Service Manual page 569

11.1.3.5. Folding / Delivery System
1. Outline
The paper folding mechanism consists of a Guide Plate, Paper Folding Rollers, Paper Pushing Plate,
and Paper Positioning Plate.
The Guide Plate is used to cover the Folding Rollers while sheets are output as to prevent sheets from
coming into contact with the Folding Rollers during output. Before the stack is folded, the Guide Plate
moves down to enable the Folding Rollers to operate. The Folding Rollers are driven by the Paper
Folding Motor (M2S), and the drive of the motor is monitored by the Paper Folding Motor Clock Sensor
(PI4S). The mechanism is also equipped with a Paper Folding Home Position Sensor (PI12S) for
detecting the position of the Paper Folding Rollers.
The Paper Pushing Plate is driven by the Paper Pushing Plate Motor (M8S), and the drive of the Paper
Pushing Plate Motor is monitored by the Paper Pushing Plate Motor Clock Sensor (PI1S). The Paper
Pushing Plate Home Position Sensor (PI14S) and the Paper Pushing Plate Top Position Sensor
(PI15S) are used to detect the position of the Paper Pushing Plate.
After being folded in half by the Paper Folding Rollers, the stack is moved ahead by the Delivery Roller
for delivery. The Delivery Roller is driven by the Paper Folding Motor. The Delivery Sensor (PI11S) is
mounted to the Delivery Assembly to detect delivery of paper. The Tray Paper Sensor (PI6S) is used to
detect the presence/absence of paper on the tray, but does not detect jams. The Vertical Path Paper
Sensor (PI17S) serves to detect the presence of paper after jam removal.
2. Controlling the Movement of Stacks
When a stack has been stitched (2 points), the Paper Positioning Plate lowers so that the stack will
move to where the Paper Folding Rollers come into contact with the stack and where the Paper
Pushing Plate is located. The position of the Paper Positioning Plate is controlled in reference to the
number of motor pulses coming from the Paper Positioning Home Position Sensor (PI7S).
At the same time as the Paper Positioning Plate operates, the Guide Plate lowers so that folding may
take place.
Ver. 5.2
Stitcher ends
Paper Positioning Plate Motor (M4S)
Guide Motor (M3S)
Guide Plate Home Position Sensor
(PI13S)
DP-3510/3520/3530/4510/4520/4530/6010/6020/6030
Equivalent of specific
number of pulses
Fig. 3-038
569
JAN 2006