Sheet feeding or delivering – Delivering to stack and feeding therefrom – With sheet sensor for selective location
Patent
1982-03-25
1984-06-26
Stoner, Jr., Bruce H.
Sheet feeding or delivering
Delivering to stack and feeding therefrom
With sheet sensor for selective location
271127, 271251, 271303, B65H 522, B65H 104, B65H 306
Patent
active
044562381
ABSTRACT:
A duplex tray is provided for an automatic duplex copying machine, or the like, for receiving and stacking thereon one-side-copied and for re-feeding those sheets into the machine in order to perform printing on the other side of each sheet, having, a gate for switching the sheet transportation directions from a sheet path for discharging sheets outside the machine to a sheet path for discharging sheets onto the duplex tray, and vice versa; a tray pressure application member means for moving the tray between (i) a reference position and (ii) a position deviated outwards from the reference position; an inclined roller which is movable upwards and downwards and can line up the sheets discharged onto the tray; whereby, at the time of sheet discharging, the gate is moved to the side of the sheet discharging path of the tray, and the tray pressure application member is moved to a non-pressure application position, and the tray is moved to a position deviated from the reference position and the inclined roller is moved to a descended position. In this duplex tray, by selecting either a sheet discharge mode or a sheet re-feed mode, a single solenoid is energized or deenergized, whereby a single half-turn cam is controlled through a spring clutch, and by that cam, the gate, the tray pressure application member and the inclined roller are displaced through a linkage mechanism to their respective positions for discharging sheets onto the tray or for re-feeding sheets.
REFERENCES:
patent: 3645615 (1972-02-01), Spear, Jr.
patent: 3900192 (1975-08-01), Gibson
patent: 4157822 (1979-06-01), Miller
patent: 4379549 (1983-04-01), Mizuma
IBM Tech. Disclosure Bulletin, Overton et al., "Duplexing Copier", vol. 23, No. 9, Feb. 1981.
Ricoh & Company, Ltd.
Rosenberg Lisa
Shoup Guy W.
Stoner Jr. Bruce H.
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