Recirculating document handler

Details Recirculating document handler Recirculating document handler

1992-04-29

1992-12-08

Schacher, Richard A.

Sheet feeding or delivering

Delivering to stack and feeding therefrom

With sheet sensor for selective location

271301, B65H 300

Patent

active

051691353

ABSTRACT:
The invention relates to a document handling apparatus for use in a copying machine which separates a document from the bottom of a stack of documents on a loading plate to an exposure location, feeds back the document onto the top of the stack after exposure. The document handling apparatus has a separator arm fixed to a rotatable shaft which is driven intermittently by a drive system. The separator arm contacts the top surface of the stack of documents to be fed to the exposure location with the weight of the arm, loads the documents having been returned from the exposure location on the separator arm, moves downwardly with the circulation of the documents until being released from the bottom of the stack of the documents. A partially toothed gear of the drive system is mounted on a rotatable shaft which is geared with the pinion gear to rotate the rotatable arm in its toothed circumferential portion and is free from the pinion gear out of the toothed circumferential portion. A sensor is provided to detect a position of the separator arm for generating a signal to stop a motor of the drive system.

REFERENCES:
patent: 4921236 (1990-05-01), Saeki
patent: 4934683 (1990-06-01), Ueda

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