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US 5,648,808 AGranted
Automatic sheet feeding apparatus
AssigneeCanon Kabushiki Kaisha
InventorsHaruyuki Yanagi, Shinnosuke Taniishi, Tetsuo Suzuki, Junichi Asano, Soichi Hiramatsu, Takashi Nojima, Satoshi Saikawa
Life of this patent
Estimating the term…
Abstract
An automatic sheet feeding apparatus includes a sheet supporter for supporting sheets, a sheet supplier for feeding out the sheet from the sheet supporter, a separator for separating the sheets one by one at the feeding of the sheet by the sheet supplier, by regulating one of front corners of the sheets supported by the sheet supporting means in a sheet feeding direction, and a skew-feed corrector for correcting the skew-feed of the sheet by applying a resisting force to the sheet fed by the sheet supplier.
Claims25
An automatic sheet feeding apparatus comprising:
- sheet supporting means for supporting sheets thereon, having a first position on a first side of a centerline of said sheet supporting means in a sheet feeding direction and a second position on a second side of the centerline opposite to the first side;
- a sheet supply member disposed at the first position on the first side of the centerline of said sheet supporting means, for feeding out the sheets from said sheet supporting means in a sheet feeding direction;
- a separating claw for separating the sheets fed by said sheet supply member one by one by regulating one front corner on the first side of the sheets;
- and
- skew-feed correction means disposed downstream of said sheet supply member for correcting a skew-feed of the sheets caused by disposition of said sheet supply member and said separating claw on the first side of the centerline, by applying a resisting force to a leading end of the sheets fed by said sheet supply member, wherein a sheet supply member and a separating claw are positioned only on the first side and the second side is without a sheet supply member and separating claw.
2 more elements
An automatic sheet feeding apparatus comprising:
- sheet supporting means for supporting sheets thereon, having a first position on a first side of a centerline of said sheet supporting means in a sheet feeding direction and a second position on a second side of the centerline opposite to the first side;
- a sheet supply member disposed at the first position on the first side of the centerline of said sheet supporting means, for feeding out the sheets from said sheet supporting means in a sheet feeding direction;
- a separation member for separating the sheets fed out by said sheet supply member one by one, by regulating one front corner on the first side of the sheets;
- and
- guide means disposed downstream of said sheet supply member for correcting a skew-feed of the sheets caused by arrangement of said sheet supply member and said separation member on the first side of the centerline, by correcting a deformation of the sheet in a thickness direction thereof generated at the second side to of said sheet supply member and said separation member in a sheet widthwise direction, wherein a sheet supply member and a separating claw are positioned only on the first side and the second side is without a sheet supply member and separating claw.
2 more elements
An image forming system comprising:
- sheet supporting means for supporting sheets thereon, having a first position on a first side of a centerline of said sheet supporting means in a sheet feeding direction and a second position on a second side of the centerline opposite to the first side;
- a sheet supply member disposed at the first position on the first side of the centerline of said sheet supporting means, for feeding out the sheets from said sheet supporting means in a sheet feeding direction;
- a separating claw for separating the sheets fed by said sheet supply member one by one by regulating one front corner on the first side of the sheets;
- skew-feed correction means disposed downstream of said sheet supply member for correcting a skew-feed of the sheets caused by disposition of said sheet supply member and said separating claw on the first side of the centerline, by applying a resisting force to a leading end of the sheets fed by said sheet supply member, wherein a sheet supply member and a separating claw are positioned only on the first side and the second side is without a sheet supply member and separating claw;
- and
- image forming means for forming an image on the sheet fed and skew-feed corrected by said skew-feed correction means.
3 more elements
An image forming system comprising:
- sheet supporting means for supporting sheets thereon, having a first position on a first side of a centerline of said sheet supporting means in a sheet feeding direction and a second position on a second side of the centerline opposite to the first side;
- a sheet supply member disposed at the first position on the first side of the centerline of said sheet supporting means, for feeding out the sheets from said sheet supporting means in a sheet feeding direction;
- a separation member for separating the sheets fed out by said sheet supply member one by one, by regulating one front corner on the first side of the sheets;
- guide means disposed downstream of said sheet supply member for correcting a skew-feed of the sheets caused by arrangement of said sheet supply member and said separation member on the first side of the centerline by correcting a deformation of the sheet in a thickness direction thereof generated at the second side of the centerline of said sheet supply member and said separation member in a sheet widthwise direction, wherein a sheet supply member and a separating claw are positioned only on the first side and the second side is without a sheet supply member and separating claw;
- and
- image forming means for forming an image on the sheet fed and skew-feed corrected by said guide means.
3 more elements
Dependencies are inferred from the claim text.