586
JAN 2006
Ver. 5.2
DP-3510/3520/3530/4510/4520/4530/6010/6020/6030
11.1.4.2.2. Punch Operation
The Hole Puncher is driven by the Punch Motor (M1P). The hole puncher home position is detected by the
Punch Home Position Sensor (PI3P).
In all there are four types of Punch Unit depending on the destination: 2- hole type (Punch Unit A1), 2-/3-
hole Dual Use (Punch Unit B1), and two 4-hole types (Punch Unit C1 and Punch Unit D1). With the 2-hole
and 4-hole types, the Hole Puncher is moved reciprocally and punching is performed by the Punch Shaft
rotating 180° from its home position. With the 2-/3-hole dual use type, too, the Hole Puncher is moved
reciprocally and punching is performed by the Punch Shaft rotating 180° from its home position. However,
half of the peripheral area of the Punch Shaft can be used as a 2-hole type while the other half can be as a
3-hole type. Whether the Punch Shaft is used as a 2-hole punch or a 3-hole punch depends on the
instructions from the Copier.
1.
2- / 4-hole Type
At the home position, the Punch Home Position Sensor is ON. Punching of the first sheet ends when
the Punch Shaft has rotated in the forward direction 180°, and the state of the Punch Home Position
Sensor has changed from OFF to ON. Punching of the second sheet ends when the Punch Shaft has
rotated in the reverse direction 180°, and the state of the Punch Home Position Sensor has changed
from OFF to ON.
The following illustrates when two sheets are punched.
a. A hole is punched in the trailing edge of the first sheet.
Fig. 4-006
Punch Home
Position
Sensor (PI3P)
Sensor Flag
Punch Shaft
Eccentric
Cam
Die
Die
Sheet
Hole
Puncher
[punch shaft
stopped/home
position]
[punch shaft is
rotated 90 in the
forward direction/
hole punched]
[punch shaft is rotated
180 in the forward
direction/punch
operation completed]
Punch Trash
Summary of Contents for DP-3530
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