Sheet stacking device and image forming apparatus provided with

Details Sheet stacking device and image forming apparatus provided with Sheet stacking device and image forming apparatus provided with

1985-10-25

1988-11-29

Shaver, Kevin P.

Sheet feeding or delivering

Delivering to stack and feeding therefrom

With sheet sensor for selective location

271176, 271184, 271186, 271289, 271291, 271294, 271298, 271303, B65H 300

Patent

active

047876166

ABSTRACT:
A sheet stacking device and an image forming apparatus provided with the sheet stacking device. The sheet stacking device has a sheet sorting function, and in addition, sheet re-feeding function so as to make it possible to produce a duplex copy or superimposed copy. It is further possible to use the sorter portion as a sheet feeding facility.

REFERENCES:
patent: 3960445 (1976-06-01), Drawe
patent: 3995748 (1976-12-01), Looney
patent: 4145037 (1979-03-01), Mol
patent: 4145038 (1979-03-01), Mol
patent: 4146215 (1979-03-01), Mol
patent: 4184671 (1980-01-01), Sasamori
patent: 4200386 (1980-04-01), Queener
patent: 4379549 (1983-04-01), Mizuma
patent: 4385825 (1983-05-01), Kaneko
patent: 4471954 (1984-09-01), Bourg
patent: 4534643 (1985-08-01), Watanabe
patent: 4570918 (1986-02-01), Eisler
IBM Technical Disclosure Bulletin, vol. 22, No. 4, Sep. 1979, "Automatic Duplex Copier", Bishop et al., pp. 1379-1387.

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