Sheet feeding or delivering – Feeding – With means to interrupt feeding
Patent
1998-10-29
2000-02-22
Bollinger, David H.
Sheet feeding or delivering
Feeding
With means to interrupt feeding
B65H 712
Patent
active
060271132
ABSTRACT:
A multi-item detector for use with a document feeder for feeding documents along a document path includes first and second vacuum heads having juxtaposed faces and being spaced apart on opposite sides along the document path. Each head is adapted to be connected to a vacuum source. The faces of the vacuum heads include a plurality of apertures through which a vacuum is applied for drawing documents into contact with either the first or second vacuum head. A first vacuum sensor is coupled to the first vacuum head. A second vacuum sensor is coupled to the second vacuum head. Each of the sensors have an on-state and an off-state for sensing an increase in vacuum level when a document contacts one of the vacuum heads in order to place the sensor in the on-state. When multiple documents are present in the document path, both sensors are in the on-state.
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BancTec Inc.
Bollinger David H.
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