Document feeder with sheet edge regulating mechanism

Details Document feeder with sheet edge regulating mechanism Document feeder with sheet edge regulating mechanism

1989-04-05

1990-09-18

Skaggs, H. Grant

Sheet feeding or delivering

Delivering to stack and feeding therefrom

With sheet sensor for selective location

271126, 271147, 271245, B65H 500

Patent

active

049572857

ABSTRACT:
A document feeder for use in a copy machine includes a gate plate disposed between a document sheet stacker and a sheet separator for separating a sheet from the bottom of a stack of document sheets. The gate plate is adapted to be lifted to regulate the passage of the stack of document sheets so that when the gate plate is lowered, the leading edges of the document sheets in the stack come in contact with the gate plate, whereby the leading edges of the documents are aligned, and while the gate plate is lifted upwardly, the stack of document sheets passes under the gate plate. The document feeder further includes a sheet edge-regulator attached to the gate plate so that when the gate plate is lifted upwardly, the sheet edge-regulator is moved adjacent the upper surface of the stack of document sheets and regulates the leading edge of the stack of document sheets so as to pass under the gate plate.

REFERENCES:
patent: 4135804 (1979-01-01), Schoppe et al.
patent: 4761001 (1988-08-01), Hayakawa et al.
patent: 4786039 (1988-11-01), Ito

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