Sheet feeding or delivering – Feeding – Separator and conveyor
Patent
1993-03-05
1995-02-21
Bollinger, David H.
Sheet feeding or delivering
Feeding
Separator and conveyor
271114, 271119, 271122, B65H 500
Patent
active
053909062
ABSTRACT:
A paper supplying device includes a pair of opposite upper and lower paper supplying rollers, each having a hemicylindrical portion defining an increased frictional circumferential surface having a frictional force greater than the remaining surface of the respective roller. A pair of feed rollers are arranged on a downstream side of the paper supplying rollers at a distance shorter than a circumferential length of the increased frictional circumferential surface of the paper supplying rollers. A rotation change over device drives the paper supplying rollers in changeable rotational directions between a regular rotational direction and a reverse rotational direction. A pair of upper and lower assist rollers are arranged with a bundle of manuscript sheets placed on a paper supplying tray therebetween. The assist rollers are rotated in the same direction synchronously with the paper supplying rollers. The order of supply of the manuscript sheets can be changed over between supply from an uppermost manuscript sheet in the bundle and supply from a lowermost manuscript sheet in the bundle.
REFERENCES:
patent: 3961786 (1976-06-01), Yanker
patent: 4635922 (1987-01-01), Roetter et al.
patent: 4779861 (1988-10-01), Ozawa et al.
patent: 4794419 (1988-12-01), Shibazaki et al.
patent: 5203553 (1993-04-01), Chiang
Bollinger David H.
Mita Industrial Co. Ltd.
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