Paper feeder usable with a copier and others

Details Paper feeder usable with a copier and others Paper feeder usable with a copier and others

1986-09-12

1988-09-13

Rolla, Joseph J.

Sheet feeding or delivering

Feeding

Multiple supplies

271110, 271117, 271154, B65H 344, B65H 708, B65H 306, B65H 116

Patent

active

047704039

ABSTRACT:
A paper feeder is disclosed which has a plurality of trays arranged one above another and a paper feed unit movable up and down to one of the trays selected. To control paper transport speed, a paper sensor is actuated prior to a level sensor during movement of the paper feed unit to a paper feed position, and a paper feed unit drive motor begins to be decelerated in response to an "on" signal of the paper sensor. The amount of papers remaining in any of the trays is detected by counting drive pulses applied to a pulse motor, which is adapted to drive the paper feed unit. After a power source has been turned on, the amounts of remaining papers in all the trays are detected and displayed prior to a copying operation.

REFERENCES:
patent: 4444385 (1984-04-01), Berry

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