Sheet feed device for electronic copier, printer, etc.

Details Sheet feed device for electronic copier, printer, etc. Sheet feed device for electronic copier, printer, etc.

1985-10-24

1988-08-16

Rolla, Joseph J.

Sheet feeding or delivering

Feeding

Pack holders

271 9, 271126, 271127, B65H 114

Patent

active

047638915

ABSTRACT:
A sheet feed device for use with a sheet feed tray of the type having a movable bottom plate and a tray cover holds the bottom plate in a raised, sheet feed position whenever the tray cover is closed, and in a lowered, sheet supply position whenever it is open. A reversible motor is drivably connected by gears or a sprocket and chain device to an arm which is adapted to raise and lower the bottom plate. The motor is controlled responsive to an output of a tray cover position sensor which senses an open position and a closed position of the tray cover.

REFERENCES:
patent: 3655183 (1972-04-01), Wagner
patent: 4231566 (1980-11-01), Suzuki
patent: 4285510 (1981-08-01), Kanno et al.
patent: 4346878 (1982-08-01), Aizawa
patent: 4390175 (1983-06-01), Takahashi
patent: 4466604 (1984-08-01), Kishimoto et al.
patent: 4488718 (1984-12-01), Tamura
patent: 4516764 (1985-05-01), Tamura
patent: 4535982 (1985-08-01), Mochmura

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