Recirculating document feeder

Details Recirculating document feeder Recirculating document feeder

1978-03-09

1980-11-04

Schacher, Richard A.

Sheet feeding or delivering

Delivering to stack and feeding therefrom

With sheet sensor for selective location

271186, 271213, 271225, 271DIG9, B65H 522

Patent

active

042315620

ABSTRACT:
Originals are individually separated from the bottom of a stack overlying the imaging platen of a document copier and are advanced around a first 180.degree. bend onto the platen for copying. After they are copied, the originals are returned to the top of the stack around a second 180.degree. bend at the other end of the platen. Each original is advanced to the imaging platen a number of times equal to the number of copies to be made to produce collated sets of copies from the copier. A relatively flat place-marking member initially placed on the uppermost original drops down when that original is fed to generate a signal indicating that the entire set of originals has been advanced once to the imaging platen. The generated signal indexes a counter that turns off the feeder when the desired number of copies have been made. This counter also actuates a motor that shifts the copy tray between sets to offset successive sets of copies.

REFERENCES:
patent: 3630607 (1971-12-01), Korn
patent: 3964741 (1976-06-01), Kroeker
patent: 4076408 (1978-02-01), Reid
patent: 4093372 (1978-06-01), Guenther
patent: 4158500 (1979-06-01), DiFrancesco
IBM Technical Disclosure Bulletin, vol. 17, No. 8, Jan. 1975, "Stacking Technique", D. F. Manning et al., p. 2255.

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