Sheet feeding and flattening apparatus

Details Sheet feeding and flattening apparatus Sheet feeding and flattening apparatus

1993-05-28

1993-11-30

Skaggs, H. Grant

Sheet feeding or delivering

Delivering to stack and feeding therefrom

With sheet sensor for selective location

493409, 493406, 271 94, 271 81, 271264, 271 35, B65H 522

Patent

active

052658562

ABSTRACT:
A sheet feeder, such as recirculating document handler for a copying machine, is provided with movable sheet flattening guide arms (31) for flattening out upturned sheet corner dog-ears in the leading edge of a document sheet (13A) as each sheet is fed from the stacking tray (12) of the document handler. The guide arms (31) are located adjacent to and preferably behind the front wall (29) of the tray and, as a document is fed beneath the wall, they automatically move out transversely along the leading edge of the document to flatten it, particularly at the corners (13B), thereby enabling dog-eared or curled documents to be fed without becoming jammed.

REFERENCES:
patent: 4071233 (1978-01-01), Morton et al.
patent: 4462586 (1984-07-01), Browne et al.
patent: 4614334 (1986-09-01), Henmi et al.
patent: 5000438 (1991-03-01), Sardano et al.
patent: 5147274 (1992-09-01), Mandel
patent: 5152515 (1992-10-01), Acquaviva

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