Compact copy sheet input/output apparatus for an electrophotogra

Details Compact copy sheet input/output apparatus for an electrophotogra Compact copy sheet input/output apparatus for an electrophotogra

1991-05-17

1992-09-08

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355322, 271 31, 271163, G03G 1500, B65H 104, B65H 3100

Patent

active

051462869

ABSTRACT:
A compact machine architecture is realized by combining the functions of copy sheet feeding and stacking into one integral apparatus. The apparatus is initially completely filled with copy sheets to be moved into the transfer/fusing area of a copier/duplicator machine. A vertically translatable stacker tray is positioned above the copy sheet input and is moved downward in vertical synchronism with copy sheets being fed from the input stack. A paper feed roller, attached to the bottom of the tray, continually feeds the top sheet from the input supply. As the input sheet stack is consumed, the output (feed) copies are deposited onto the stacker tray. As operation continues the supply stack is depleted while the finished stack increases, but the overall volume occupied by the copy sheets remains the same. Since there is no "empty" volume in the apparatus, the size and cost of the unit is greatly reduced.

REFERENCES:
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patent: 4473314 (1984-09-01), Imaizumi
patent: 4640502 (1987-02-01), Habich et al.
patent: 4715595 (1987-12-01), Ishigaki
patent: 4854232 (1989-08-01), Oda
patent: 4926220 (1990-05-01), Matysek et al.

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