Automatic document feeder

Details Automatic document feeder Automatic document feeder

B - Operations, Transporting

65

H

270/164

B65H 7/02 (2006.01) B65H 3/46 (2006.01) B65H 3/52 (2006.01)

Patent

CA 1260972

ABSTRACT An automatic document feeder for use with a facsimile apparatus, a copier or the like includes a separator roller and feed rollers which are mounted on a common shaft and each is provided with a spring clutch. While the separator roller cooperates with a friction roller for separating documents from a stack on a tray one at a time, the feed rollers cooperate one with another feed roller, which is provided with a one-way clutch, for feeding the separated document. A reversible stepping motor is selectively driven in opposite directions depending upon the position of a document in a predetermined path, so that the coactive feed rollers selectively serve as drive rollers and follower rollers. The separator roller rotates in the same direction as the feed rollers which are coaxial therewith only when the latter serves as drive rollers.

498106

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