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    Image forming apparatus, jam processing method
    1.
    发明授权
    Image forming apparatus, jam processing method 有权

    公开(公告)号：US10527998B2

    公开(公告)日：2020-01-07

    申请号：US15625105

    申请日：2017-06-16

    申请人： CANON KABUSHIKI KAISHA

    发明人： Noriaki Matsui ,  Nozomi Kumakura ,  Naoka Omura ,  Junichiro Nakabayashi ,  Takayuki Inoue ,  Kiyoharu Kakomura ,  Yuya Ohta

    IPC分类号： G03G15/00

    摘要： An image forming apparatus is capable of easily performing jam processing. When an occurrence of a jam of a sheet which is conveyed on a conveying path is detected, the image forming apparatus displays a jam processing display screen which guides processing in accordance with a position where the jam has occurred. After the processing in accordance with the jam processing display screen is performed, if a state of the jam remains unchanged, the image forming apparatus performs forced feeding, which forcibly conveys the sheet to a predetermined position. The image forming apparatus displays the jam processing display screen urging to perform processing in accordance with the position of the sheet after the sheet is forcibly conveyed.

    IMAGE FORMING APPARATUS
    2.
    发明申请
    IMAGE FORMING APPARATUS 审中-公开

    公开(公告)号：US20180017923A1

    公开(公告)日：2018-01-18

    申请号：US15643604

    申请日：2017-07-07

    申请人： CANON KABUSHIKI KAISHA

    发明人： Yuya Ohta ,  Noriaki Matsui ,  Nozomi Kumakura ,  Naoka Omura ,  Junichiro Nakabayashi ,  Takayuki Inoue ,  Kiyoharu Kakomura

    IPC分类号： G03G15/00

    CPC分类号： G03G15/556 ,  G03G15/5041

    摘要： A controller of an image forming apparatus calculates a density difference between a measurement result of a toner image having the highest density formed on a photosensitive drum, which is obtained by an image density sensor, and the highest density of a density target. When the density difference falls within a predetermined range, the controller generates a tone correction table based on a density value of a first toner image formed with a plurality of densities including the highest density, and sets, based on the density difference, an exposure amount of laser light to be applied to the photosensitive drum by an exposure device. When the density difference falls out of the predetermined range, the controller generates the tone correction table based on a density value of a second toner image having a larger number of tone levels than that of the first toner image.

    Image forming apparatus
    6.
    发明授权
    Image forming apparatus 有权

    公开(公告)号：US10324407B2

    公开(公告)日：2019-06-18

    申请号：US15643604

    申请日：2017-07-07

    申请人： CANON KABUSHIKI KAISHA

    发明人： Yuya Ohta ,  Noriaki Matsui ,  Nozomi Kumakura ,  Naoka Omura ,  Junichiro Nakabayashi ,  Takayuki Inoue ,  Kiyoharu Kakomura

    IPC分类号： G03G15/00

    摘要： A controller of an image forming apparatus calculates a density difference between a measurement result of a toner image having the highest density formed on a photosensitive drum, which is obtained by an image density sensor, and the highest density of a density target. When the density difference falls within a predetermined range, the controller generates a tone correction table based on a density value of a first toner image formed with a plurality of densities including the highest density, and sets, based on the density difference, an exposure amount of laser light to be applied to the photosensitive drum by an exposure device. When the density difference falls out of the predetermined range, the controller generates the tone correction table based on a density value of a second toner image having a larger number of tone levels than that of the first toner image.

    IMAGE FORMING APPARATUS, JAM PROCESSING METHOD
    8.
    发明申请
    IMAGE FORMING APPARATUS, JAM PROCESSING METHOD 审中-公开

    公开(公告)号：US20180004147A1

    公开(公告)日：2018-01-04

    申请号：US15625105

    申请日：2017-06-16

    申请人： CANON KABUSHIKI KAISHA

    发明人： Noriaki MATSUI ,  Nozomi Kumakura ,  Naoka Omura ,  Junichiro Nakabayashi ,  Takayuki Inoue ,  Kiyoharu Kakomura ,  Yuya Ohta

    IPC分类号： G03G15/00

    摘要： The present disclosure provides an image forming apparatus capable of easily performing jam processing. When an occurrence of a jam of a sheet which is conveyed on a conveying path is detected, the image forming apparatus displays a jam processing display screen which guides processing in accordance with a position where the jam has occurred. After the processing in accordance with the jam processing display screen is performed, if a state of the jam remains unchanged, the image forming apparatus performs forced feeding which forcibly conveys the sheet to a predetermined position. The image forming apparatus displays the jam processing display screen urging to perform processing in accordance with the position of the sheet after the sheet is forcibly conveyed.