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    IMAGE FORMING APPARATUS
    2.
    发明申请
    IMAGE FORMING APPARATUS 有权

    公开(公告)号：US20210364967A1

    公开(公告)日：2021-11-25

    申请号：US17319009

    申请日：2021-05-12

    Applicant: Konica Minolta, Inc.

    Inventor： Tomohiro KAWASAKI ,  Hiroyuki SAITO ,  Kazutoshi KOBAYASHI ,  Keiki KATSUMATA ,  Kei OKAMURA

    IPC: G03G15/00

    Abstract: An image forming apparatus includes: an image carrier; an exposing device; a developing device with a developing roller; a development current detector that detects development current between the image carrier and the developing roller; and a hardware processor. Under an image forming condition, the hardware processor causes the exposing device to draw, on the image carrier, a development current-detection pattern that includes a solid image and a halftone image that follows the solid image in an image-conveying direction of the image carrier, causes the developing device to develop the development current-detection pattern, obtains information on a chronological change of the detected development current from the development current detector, and determines whether or not a ghost image due to the solid image occurs based on a temporary drop of the detected development current during development of the halftone image.

    IMAGE FORMING APPARATUS
    3.
    发明申请
    IMAGE FORMING APPARATUS 审中-公开

    公开(公告)号：US20200301318A1

    公开(公告)日：2020-09-24

    申请号：US16824743

    申请日：2020-03-20

    Applicant: Konica Minolta, Inc.

    Inventor： Yoshiki NAKANE ,  Kei OKAMURA ,  Hiroshi MORIMOTO ,  Natsuko MINEGISHI ,  Takenobu KIMURA

    IPC: G03G15/16 ,  G03G21/10 ,  G03G21/00

    Abstract: An image forming apparatus including: an image carrier that carries a toner image; a cleaner that contacts a surface of the image carrier and removes a toner, the cleaner being located at a first position during stop of rotation of the image carrier and located at a second position during rotation of the image carrier; a moving mechanism that moves the cleaner between the first position and the second position by moving the cleaner in a direction parallel to a rotation shaft of the image carrier while maintaining a contact state between the cleaner and the image carrier; and a hardware processor, in which the hardware processor starts to move the cleaner from the first position to the second position with the moving mechanism during stop of the rotation of the image carrier, and the hardware processor starts to rotate the image carrier during movement of the cleaner.

    DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
    4.
    发明申请
    DEVELOPING DEVICE AND IMAGE FORMING APPARATUS 审中-公开

    公开(公告)号：US20190163094A1

    公开(公告)日：2019-05-30

    申请号：US16197895

    申请日：2018-11-21

    Applicant: KONICA MINOLTA, INC.

    Inventor： Kazuteru ISHIZUKA ,  Hiroyuki SAITO ,  Shunichi TAKAYA ,  Kei OKAMURA ,  Aiko KUBOTA

    IPC: G03G15/09 ,  G03G15/08

    Abstract: There is provided a developing device for developing an electrostatic latent image formed on a photoreceptor with a developer to form an image, including: a developing container that contains the developer; and a developing roller that faces the photoreceptor, is arranged adjacent to the developing container, and conveys the developer contained in the developing container to the photoreceptor, wherein the developing roller includes a magnetic pole forming part to be formed with a plurality of magnetic poles along a circumferential direction of the developing roller, at least a catch pole is formed as one of the plurality of magnetic poles, and in the catch pole, an amount of a total magnetic charge in an axial direction of the developing roller is kept constant, and a part of magnetic flux density distribution is different from another part of magnetic flux density distribution along the axial direction of the developing roller.

    IMAGE FORMING APPARATUS AND RECORDING MEDIUM
    7.
    发明申请
    IMAGE FORMING APPARATUS AND RECORDING MEDIUM 有权

    公开(公告)号：US20210364968A1

    公开(公告)日：2021-11-25

    申请号：US17320702

    申请日：2021-05-14

    Applicant: Konica Minolta, Inc.

    Inventor： Kazutoshi KOBAYASHI ,  Tomohiro KAWASAKI ,  Keiki KATSUMATA ,  Kei OKAMURA

    IPC: G03G15/00 ,  G03G15/08

    Abstract: Provided is an image forming apparatus including a developer that performs development with toner, the image forming apparatus including a vibrator that applies vibrations to a vibrated portion of the developer, and a hardware processor that controls the vibrator. The hardware processor determines a toner leakage level based on a result of detecting toner leakage adhering to a sheet caused by the image forming apparatus, settles a vibrating condition of the vibrator in accordance with the toner leakage level, and causes the vibrator to perform a vibrating operation under the settled vibrating condition.

    DEVELOPING APPARATUS AND IMAGE FORMING APPARATUS
    8.
    发明申请
    DEVELOPING APPARATUS AND IMAGE FORMING APPARATUS 审中-公开

    公开(公告)号：US20190332034A1

    公开(公告)日：2019-10-31

    申请号：US16376308

    申请日：2019-04-05

    Applicant: KONICA MINOLTA, INC.

    Inventor： Kei OKAMURA ,  Hiroyuki SAITO ,  Shunichi TAKAYA ,  Kazuteru ISHIZUKA ,  Aiko KUBOTA

    IPC: G03G15/08

    Abstract: A developing apparatus includes: a developer carrying body that carries a developer and is rotationally driven; a developer stirring member that is rotationally driven and thereby stirs the developer and conveys the developer to the developer carrying body; and a developer recovery member that is rotationally driven and thereby returns and recovers the developer stripped from the developer carrying body after development of the electrostatic latent image, to the developer stirring member, wherein a driving speed of the developer stirring member and a driving speed of the developer recovery member are independently controllable from each other.

    IMAGE FORMING APPARATUS, IMAGE FORMING SYSTEM, AND DENSITY UNEVENNESS CORRECTION METHOD
    10.
    发明申请
    IMAGE FORMING APPARATUS, IMAGE FORMING SYSTEM, AND DENSITY UNEVENNESS CORRECTION METHOD 有权
    图像形成装置，图像形成系统和密度无法校正方法

    公开(公告)号：US20160266533A1

    公开(公告)日：2016-09-15

    申请号：US15056036

    申请日：2016-02-29

    Applicant: KONICA MINOLTA, INC.

    Inventor： Shunichi TAKAYA ,  Hiroshi MORIMOTO ,  Wataru WATANABE ,  Kei OKAMURA

    IPC: G03G15/00 ,  G03G15/08

    CPC classification number: G03G15/556 ,  G03G15/5058

    Abstract: An image forming apparatus uses a first developer conveyance amount and a first correction amount calculated respectively in a first state, a second developer conveyance amount and a second correction amount calculated respectively in a second state in which the developer conveyance amount is smaller than the developer conveyance amount of the first state, and a third developer conveyance amount detected in a third state in which the developer conveyance amount is smaller than the developer conveyance amount of the first state and is larger than the developer conveyance amount of the second state to calculate a third correction amount for correcting density unevenness of the toner image in the third state, and perform control to correct the density unevenness of the toner image based on the calculated third correction amount.

    Abstract translation: 图像形成装置使用分别在显影剂输送量小于显影剂输送量的第二状态下分别计算的第一状态，第二显影剂输送量和第二校正量中计算出的第一显影剂输送量和第一校正量 第一状态的量和第三显影剂输送量，其中显影剂输送量小于第一状态的显影剂输送量并且大于第二状态的显影剂输送量的第三状态，以计算第三状态 用于校正第三状态下的调色剂图像的浓度不均匀的校正量，并且基于所计算的第三校正量执行调色剂图像的浓度不均匀性的控制。

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