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    Image forming apparatus capable of forming image on sheet with uneven surface, image forming condition adjustment method
    2.
    发明授权
    Image forming apparatus capable of forming image on sheet with uneven surface, image forming condition adjustment method 有权

    公开(公告)号：US11849094B2

    公开(公告)日：2023-12-19

    申请号：US18057456

    申请日：2022-11-21

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Kanako Kikuchi ,  Akihiro Kondo ,  Keisuke Oba

    IPC: H04N1/60 ,  H04N1/407 ,  G03G15/28

    CPC classification number: H04N1/6027 ,  G03G15/28 ,  H04N1/4074 ,  H04N1/6019

    Abstract: An image forming apparatus includes an image forming portion, a first acquisition processing portion, a second acquisition processing portion, and an adjustment processing portion. The image forming portion forms an image on a sheet. The first acquisition processing portion acquires a captured image of the sheet. The second acquisition processing portion acquires a specific value that indicates a difference between a gradation value of a pixel that, among pixels included in the captured image acquired by the first acquisition processing portion, corresponds to a higher part of an outer surface of the sheet, and a gradation value of a pixel that, among the pixels included in the captured image, corresponds to a lower part that is lower than the higher part. The adjustment processing portion adjusts an image forming condition of the image forming portion based on the specific value acquired by the second acquisition processing portion.

    Image forming apparatus
    3.
    发明授权
    Image forming apparatus 有权

    公开(公告)号：US10921729B2

    公开(公告)日：2021-02-16

    申请号：US16583430

    申请日：2019-09-26

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Tamotsu Shimizu ,  Yasushi Imanishi ,  Satoshi Sunayama ,  Kazuhiro Nakachi ,  Ai Takagami ,  Kanako Kikuchi

    IPC: G03G15/06

    Abstract: A mode controller outputs a characteristic value according to a DC component of a developing current measured by an ammeter at a predetermined measurement timing. The measurement timing is defined as a timing at which a non-image forming region of a surface of a photosensitive drum is located opposite to a developing roller in the entirety of an axial direction and an electric field in a direction in which a toner moves from the photosensitive drum toward the developing roller by a potential difference between a surface potential of the photosensitive drum and the DC component of a developing bias is formed in a developing nip part. A determining section determines an execution timing for a charge amount acquisition operation according to the characteristic value output by the mode controller.

    IMAGE FORMING APPARATUS CAPABLE OF FORMING IMAGE ON SHEET WITH UNEVEN SURFACE, TRANSFER CURRENT ADJUSTMENT METHOD
    6.
    发明公开
    IMAGE FORMING APPARATUS CAPABLE OF FORMING IMAGE ON SHEET WITH UNEVEN SURFACE, TRANSFER CURRENT ADJUSTMENT METHOD 审中-公开

    公开(公告)号：US20230161284A1

    公开(公告)日：2023-05-25

    申请号：US18057162

    申请日：2022-11-18

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Kanako Kikuchi ,  Akihiro Kondo ,  Keisuke Oba

    IPC: G03G15/00

    CPC classification number: G03G15/5054

    Abstract: An image forming apparatus includes a change processing portion, a detection processing portion, a second acquisition processing portion, and an adjustment processing portion. The change processing portion changes a transfer current when a plurality of specific toner images which each include a toner layer of C formed on an image-carrying member and a toner layer of M are each transferred to a sheet. The detection processing portion detects a specific image that corresponds to each specific toner image included in the captured image of the sheet. The second acquisition processing portion acquires, for each of detected specific images, a skewness of a histogram of gradation values of a color mixture of M and Y in pixels included in each of the specific images. The adjustment processing portion adjusts the transfer current based on: the skewness acquired for each of the specific images; and the transfer current corresponding to the skewness.

    IMAGE FORMING APPARATUS CAPABLE OF FORMING IMAGE ON SHEET WITH UNEVEN SURFACE, IMAGE FORMING CONDITION ADJUSTMENT METHOD
    8.
    发明公开
    IMAGE FORMING APPARATUS CAPABLE OF FORMING IMAGE ON SHEET WITH UNEVEN SURFACE, IMAGE FORMING CONDITION ADJUSTMENT METHOD 审中-公开

    公开(公告)号：US20230164284A1

    公开(公告)日：2023-05-25

    申请号：US18057456

    申请日：2022-11-21

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Kanako Kikuchi ,  Akihiro Kondo ,  Keisuke Oba

    IPC: H04N1/60 ,  G03G15/28 ,  H04N1/407

    CPC classification number: H04N1/6027 ,  G03G15/28 ,  H04N1/4074 ,  H04N1/6019

    Abstract: An image forming apparatus includes an image forming portion, a first acquisition processing portion, a second acquisition processing portion, and an adjustment processing portion. The image forming portion forms an image on a sheet. The first acquisition processing portion acquires a captured image of the sheet. The second acquisition processing portion acquires a specific value that indicates a difference between a gradation value of a pixel that, among pixels included in the captured image acquired by the first acquisition processing portion, corresponds to a higher part of an outer surface of the sheet, and a gradation value of a pixel that, among the pixels included in the captured image, corresponds to a lower part that is lower than the higher part. The adjustment processing portion adjusts an image forming condition of the image forming portion based on the specific value acquired by the second acquisition processing portion.

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