Paper feeder, image forming apparatus provided with the same...

Details Paper feeder, image forming apparatus provided with the same... Paper feeder, image forming apparatus provided with the same...

2011-05-31

2011-05-31

McCullough, Michael C (Department: 3653)

Sheet feeding or delivering

Feeding

Separator and conveyor

C271S010110, C271S125000

Reexamination Certificate

active

07950649

ABSTRACT:
When two or more sheets of paper P are fed in an overlapped manner to a nip where a paper feed roller and a separation roller are in pressure contact with each other, a sub-CPU of a sheet feeding unit rotates the paper feed roller in a paper feeding direction and rotates the separation roller in a direction opposite to the feeding direction, so as to separate overlapping, and thereafter, it rotates the paper feed roller and the separation roller again in the feeding direction.

REFERENCES:
patent: 5395106 (1995-03-01), Tohnai et al.
patent: 5924686 (1999-07-01), Jacobson et al.
patent: 6588740 (2003-07-01), Brugger et al.
patent: 06-092490 (1994-04-01), None
patent: 1994-0156815 (1994-06-01), None
patent: 2003-072988 (2003-03-01), None

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