Duplex printer and method of printing

Details Duplex printer and method of printing Duplex printer and method of printing

1991-08-01

1992-09-22

Grimley, A. T.

Photocopying

Contact printing

Light boxes

271218, 355322, G03G 2100

Patent

active

051501686

ABSTRACT:
A copying and or printing apparatus including a duplex feeder for feeding sheets having had page image information copied/printed on one side thereof, back to a copying/printing station for transferring page image information to the other side thereof. The duplex feeder includes a buffer tray that can be positioned above and slightly upstream of a feeder tray. The buffer tray stores copy sheets exceeding the maximum capacity of the feeder tray such that the copier/printer can process a greater number of duplex copies in a single run.

REFERENCES:
patent: Re32872 (1989-02-01), Buck
patent: 4116558 (1978-09-01), Adamek et al.
patent: 4189270 (1980-02-01), Ehrlich
patent: 4305655 (1981-12-01), Gamblin et al.
patent: 4538906 (1985-09-01), Brown
patent: 4585336 (1986-04-01), Tanaka
patent: 4740193 (1988-04-01), Frost et al.
patent: 4772917 (1988-09-01), Tani
Brooke et al., "Duplex Photocopier", Jan.-Feb. 1979, Xerox Dis. Journal, vol. 4, No. 1, p. 111.
Jenkins, "Sheet Flip Enhancer", Dec. 1980, IBM Tech. Dis. Bulletin, vol. 23, No. 74, pp. 2635-2636.

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