Paper feeder and image scanning device

Details Paper feeder and image scanning device Paper feeder and image scanning device

2007-05-01

2007-05-01

Bollinger, David H. (Department: 3653)

Sheet feeding or delivering

Feeding

Separator and conveyor

C271S010090, C271S121000

Reexamination Certificate

active

10854121

ABSTRACT:
A paper feeder includes a sheet supply unit that feeds sheets placed on a sheet placing part, a separating roller the separates the sheets fed by the sheet supply unit one sheet at a time and supplies each sheet to a sheet transportation path, a transportation roller that transports the sheets provided downstream of the separating roller and a link mechanism connected to the transportation roller via a transmitting unit. When the transportation roller rotates in a sheet transporting direction, the link mechanism swings so that a shutter opens the sheet transportation path and maintains an opened state. When the transportation roller rotates in a direction opposite to the sheet transporting direction, the link mechanism swings so that the shutter closes the sheet transportation path.

REFERENCES:
patent: 5725208 (1998-03-01), Miyauchi
patent: 5758981 (1998-06-01), Lesniak et al.
patent: 5890821 (1999-04-01), Lesniak et al.
patent: 2001/0015519 (2001-08-01), Kuo et al.
patent: 2005/0051943 (2005-03-01), Yamanaka et al.
patent: 11-091972 (1999-04-01), None
patent: 2001-022137 (2001-01-01), None
patent: 2001-348130 (2001-12-01), None
patent: 2002-255363 (2002-09-01), None
patent: 2003-031413 (2003-01-01), None
patent: 2005-022843 (2005-01-01), None

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