Duplo DC-616, Service Manual

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Chapter 2 5 Center Slitter Section
S2-Y1540
1. Description
2. Operation
4. Operation of Each Part
Two pairs of center slitters (slitter 3–6) are provided to
cut the paper in the traveling direction by mean of the
rotary blades arranged vertically side by side.
The lead screw is turned by means of the stepping
motor to cause the center slitters to move from the home
position by the speci
fi ed amount of pulse.
3. Slitter Blade
The slitter blades are constructed so that the lower blade
of the slitter is tilted relative to the paper feed direction.
This makes the upper and lower slitter blades contact at
only one point to maintain the clean cut even after the
slitter blade has worn out.
1. Center Slitter Home Position Sensor
<Operation>
Center slitter HP sensor detects the home position
of the center slitter by the photo-micro sensor, and
controls the center slitter position based on the
amount of pulse from the home position.
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5 Center Slitter Section