Apparatus for feeding sheet material

Details Apparatus for feeding sheet material Apparatus for feeding sheet material

1989-10-12

1991-05-21

Bollinger, David H.

Sheet feeding or delivering

Feeding

Separators

B65H 118

Patent

active

050168649

ABSTRACT:
A copying machine including a cassette for storing a plurality of paper sheets P. The cassette is inserted into, or removed from, the copying machine through a front side. A paper-empty detecting unit detects the presence or the absence of paper sheets in the cassette. The paper-empty detecting unit comprises a detecting device and a moving device for moving the detecting device. The moving device moves the detecting device in response to the insertion or removal of the cassette. When the cassette is being inserted into or removed from the copying machine, the detecting device is moved out of the way by the moving device. After the cassette is inserted into the copying machine, the detecting device is moved to a detecting position at which the point of the detecting device abuts the paper sheet in the cassette. The detecting device is movable along the path of the fed paper sheet so that the detecting device fails to obstruct the paper sheet feeding notwithstanding the fact that the detecting device abuts the paper sheet.

REFERENCES:
patent: 4553831 (1985-11-01), Dixon
patent: 4835567 (1989-05-01), Ogata
patent: 4892299 (1990-01-01), Hayama

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