Sheet feeding or delivering – Feeding – Separators
Patent
1996-09-30
1999-03-30
Skaggs, H. Grant
Sheet feeding or delivering
Feeding
Separators
271117, 271122, 271127, B65H 306
Patent
active
058878661
ABSTRACT:
A sheet feeding apparatus for separating stacked sheets one by one and feeding the sheets includes a rotative feeder rotating in a feeding direction for feeding the sheets; a retard roller disposed so as to be capable of contacting the rotative feeder rotating in reverse direction for separating the sheets one by one; a driver for driving the rotative feeder and the retard roller; a clutch for transmitting drive power from the driver to the rotative feeder when in a powered-on state, and for rendering the rotative feeder in a rotation free state without transmitting the drive power of the driver to the rotative feeder when in a powered-off state. The apparatus further includes a controller for, before the start of feeding of the sheets, rendering the rotative feeder in the rotation free state while the controller renders the clutch in the powered-off state and controlling the driver to rotate the retard roller in the reverse direction to the feeding direction of the sheet.
REFERENCES:
patent: 5029837 (1991-07-01), Uchiyama
patent: 5085420 (1992-02-01), Sata
patent: 5228673 (1993-07-01), Osonoe
patent: 5386982 (1995-02-01), Kawano
patent: 5564689 (1996-10-01), Fukube
patent: 5566006 (1996-10-01), Yoshinaga et al.
Hoshi Akimitsu
Yamauchi Tsuyoshi
Canon Kabushiki Kaisha
Skaggs H. Grant
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