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    Method of estimating lifetime of conveyance part provided in image forming apparatus
    1.
    发明授权
    Method of estimating lifetime of conveyance part provided in image forming apparatus 有权

    公开(公告)号：US10795303B2

    公开(公告)日：2020-10-06

    申请号：US16504056

    申请日：2019-07-05

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Shun-ichi Ebihara

    IPC: G03G15/00 ,  B65H43/02 ,  B65H43/06

    Abstract: In an image forming apparatus, a first conveyance part conveys a sheet, a detection unit detects a leading edge of the sheet conveyed by the first conveyance part, a second conveyance part is provided downstream of the detection unit in a conveyance direction of the sheet and conveys the sheet, a measurement unit measures a conveyance time of the sheet from when conveyance of the sheet by the first conveyance part is started until the leading edge of the sheet is detected by the detection unit, and an estimation unit estimates a remaining lifetime of the second conveyance part based on the conveyance time measured by the measurement unit.

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

    公开(公告)号：US20180246455A1

    公开(公告)日：2018-08-30

    申请号：US15905130

    申请日：2018-02-26

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Shun-ichi Ebihara ,  Tomonori Shida

    IPC: G03G15/00 ,  G06F3/12

    CPC classification number: G03G15/553 ,  G03G15/5079 ,  G03G2221/1663 ,  G06F3/1203 ,  G06F3/1229 ,  G06F3/1294

    Abstract: Provided is an image forming apparatus including a process unit that is used for an image forming operation for forming an image on a sheet and detachable from a main body of the image forming apparatus, a storage unit that stores operation history information indicating an operation history of the process unit, a detection unit that detects that the process unit is replaced with a new process unit, and a determination unit that determines a replacement timing of the new process unit on a basis of the operation history information of the process unit.

    IMAGE FORMING APPARATUS AND IMAGE FORMING SYSTEM
    5.
    发明申请
    IMAGE FORMING APPARATUS AND IMAGE FORMING SYSTEM 有权

    公开(公告)号：US20220011704A1

    公开(公告)日：2022-01-13

    申请号：US17367772

    申请日：2021-07-06

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Tetsuichiro Fujimoto ,  Shun-ichi Ebihara

    IPC: G03G15/00 ,  G03G15/20

    Abstract: An image forming system includes a first image forming apparatus and a second image forming apparatus connected with the first image forming apparatus by a network line. When a second stacking portion of the second image forming apparatus is associated with a first stacking portion of the first image forming apparatus by a setting portion, an arithmetic portion acquires information related to the characteristic of a second recording medium stacked by the second stacking portion via the network line and obtains a degree of deterioration of a feeding rotatable member of the first image forming apparatus based on the acquired information related to the characteristic of the second recording medium.

    Technology for ascertaining state of members constituting image forming apparatus
    6.
    发明授权
    Technology for ascertaining state of members constituting image forming apparatus 有权

    公开(公告)号：US11119430B2

    公开(公告)日：2021-09-14

    申请号：US16920945

    申请日：2020-07-06

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Masahiro Suzuki ,  Shun-ichi Ebihara

    IPC: G03G15/00

    Abstract: An image forming apparatus includes an image forming unit, a control unit, a reading unit, an analysis unit, a storage unit, and a computation unit. The image forming unit forms an image on a sheet. The control unit controls the image forming unit. The reading unit reads the sheet. The analysis unit analyzes a reading result acquired by the image formed on the sheet being read by the reading unit, and outputs an analysis result. The storage unit stores a printing condition used when the image was formed and the analysis result in association with each other. The computation unit computes a control parameter to be used by the control unit in order to control the image forming unit, with reference to the analysis result and the printing condition stored in the storage unit.

    Image forming apparatus that detects toner fogging
    7.
    发明授权
    Image forming apparatus that detects toner fogging 有权

    公开(公告)号：US11086258B2

    公开(公告)日：2021-08-10

    申请号：US16925021

    申请日：2020-07-09

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Yu Izaki ,  Masahiro Suzuki ,  Shun-ichi Ebihara

    IPC: G03G15/00 ,  G03G15/08

    Abstract: An image forming apparatus sets, on an image forming unit, one of a first transfer condition that does not cause an image to be formed on a sheet and a second transfer condition that causes an image to be formed on the sheet. The apparatus generates a first reading result by reading the sheet that has passed through the image forming unit set in the first transfer condition, and generates a second reading result by reading the sheet that has passed through the image forming unit set in the second transfer condition. The apparatus detects toner fogging based on the first reading result and a reading result out of the second reading result, the reading result concerning a non-image region in which no image is formed on a surface of the sheet.

    IMAGE FORMING APPARATUS
    10.
    发明申请
    IMAGE FORMING APPARATUS 有权

    公开(公告)号：US20170123354A1

    公开(公告)日：2017-05-04

    申请号：US15299870

    申请日：2016-10-21

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Shun-ichi Ebihara ,  Tomonori Shida

    IPC: G03G15/20

    CPC classification number: G03G15/2039 ,  G03G15/2028 ,  G03G2215/0132 ,  G03G2215/2035

    Abstract: An image forming apparatus includes first and second feeding units for feeding a recording material while nipping the recording material; a guiding member for guiding the recording material passed through the first feeding unit toward the second feeding unit; a measuring unit for measuring a time required for the recording material to pass from a first point to a second point provided downstream of the first point with respect to a recording material feeding direction; and a discriminating unit for discriminating stiffness of the recording material on the basis of a measurement result of the measuring unit. The guiding member is flexed and is in a non-overlapping state with a virtual line connecting a first nip where the first feeding unit nips the recording material and a second nip where the second feeding unit nips the recording material.

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