Panasonic DP-3510 Service Manual page 570

3. Folding a Stack
A stack is folded by the action of the Paper Folding Rollers and the Paper Pushing Plate. The Paper
Pushing Plate pushes against the center of a stack toward the roller contact section. The Paper
Pushing Plate starts at its home position and waits at the leading edge position until the stack has been
drawn to the Paper Folding Roller and is gripped for a length of 10 mm. When the Paper Folding Roller
has gripped the stack for a length about 10 mm, the Paper Pushing Plate Motor starts to rotate once
again, and the Paper Pushing Plate returns to its home position. The stack gripped in this way by the
Paper Folding Roller is drawn further by the Paper Folding Roller and then is moved by the Delivery
Roller to the Paper Tray.
Half of the peripheral area of the Paper Folding Rollers excluding the center part is punched out. This
punched out area only feeds the paper as the Paper Feeding Roller (lower) contacts the Paper
Feeding Roller (upper) only at the center of the roller to prevent the paper from wrinkling. As the Paper
Feeding Roller (lower) contacts the Paper Feeding Roller (upper) at their entire surfaces on the
remaining half of the peripheral area, paper folding starts from this half of the peripheral area, and
paper is fed while it is being folded. The stop position of the Paper Folding Rollers is in this half of the
peripheral area.
The paper folding start and stop positions on the Paper Folding Rollers is controlled according to the
motor lock signals from the Paper Folding Home Position Sensor (PI21S).
Paper Folding Roller (upper)
Paper Folding Home
Position Sensor
(PI21S)
Paper Folding Home
Position Sensor
(PI21S)
Ver. 5.2
Paper Pushing Plate Top
Position Sensor (PI15S)
Sensor Flag
Paper Folding
Roller (lower)
Paper Pushing Plate Top
Position Sensor (PI15S)
Sensor Flag
DP-3510/3520/3530/4510/4520/4530/6010/6020/6030
Paper Pushing Plate Home
Position Sensor (PI14S)
Paper Pushing Plate
M2S
Stack of Sheets Paper
Folding Motor
Fig. 3-039
Paper Pushing Plate Home
Position Sensor (PI14S)
Paper Pushing Plate
M2S
Paper
Folding Motor
Fig. 3-040
570
M8S
Paper Pushing
Plate Motor
M8S
Paper Pushing
Plate Motor
JAN 2006