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    FIXING DEVICE AND IMAGE FORMING APPARATUS
    2.
    发明申请
    FIXING DEVICE AND IMAGE FORMING APPARATUS 有权

    公开(公告)号：US20210389706A1

    公开(公告)日：2021-12-16

    申请号：US17348673

    申请日：2021-06-15

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Ryohei Tokunaga ,  Yuta Kitabayashi ,  Shunsaku Fujii

    IPC: G03G15/20

    Abstract: A sliding member is a tubular member surrounding a base member, and allows, by rotation, its lubricant-coated inner surface to slide in a sheet conveyance direction with respect to a surface of the base member. A heater heats the sliding member. A pressure roller forms a nip between the pressure roller and the sliding member and makes, by rotation, the sliding member rotate following the rotation. A temperature sensor measures a temperature of the base member or the sliding member. A roller driving device rotates the pressure roller at a preset initial speed and subsequently at a normal speed higher than the initial speed, in a temperature-rise process in which the temperature measured by the temperature sensor is raised to a target temperature by operation of the heater.

    Image forming apparatus having a cleaning member that controls rotation speed according to sheet thickness and number of sheets
    6.
    发明授权
    Image forming apparatus having a cleaning member that controls rotation speed according to sheet thickness and number of sheets 有权
    图像形成装置具有根据纸张厚度和纸张数来控制转速的清洁部件

    公开(公告)号：US09568861B2

    公开(公告)日：2017-02-14

    申请号：US14685910

    申请日：2015-04-14

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Yuta Kitabayashi ,  Koji Uno ,  Satoshi Uemura

    IPC: G03G15/16

    CPC classification number: G03G15/161 ,  G03G2215/1661

    Abstract: An image forming apparatus includes an image carrier, a cleaning member, a rotation controlling part, a first obtaining part and a mode changing part. The image carrier has a surface to carry a toner image transferred onto a sheet. The cleaning member contacts the surface of the image carrier at a downstream side in a rotating direction of the image carrier from a transferring position transferring the toner image to collect a toner from the image carrier and to hold the toner. The rotation controlling part has a first speed control mode rotating the cleaning member at a first rotational speed and a second speed control mode rotating the cleaning member at a second rotational speed faster than the first rotational speed and switches from the first speed control mode to the second speed control mode at predetermined switch timing.

    Abstract translation: 图像形成装置包括图像载体，清洁构件，旋转控制部，第一获得部和模式改变部。 图像载体具有用于承载转印到片材上的调色剂图像的表面。 清洁构件在图像载体的旋转方向的下游侧从转印调色剂图像的转印位置接触图像载体的表面，以从图像载体收集调色剂并保持调色剂。 旋转控制部具有第一速度控制模式，以第一旋转速度旋转清洁部件，第二速度控制模式以比第一旋转速度快的第二旋转速度旋转清洁部件，并且从第一速度控制模式切换到 第二速度控制模式。

    Image forming apparatus
    8.
    发明授权
    Image forming apparatus 有权

    公开(公告)号：US10545447B2

    公开(公告)日：2020-01-28

    申请号：US16235078

    申请日：2018-12-28

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Yuta Kitabayashi ,  Yoshihiro Yamagishi ,  Kenichi Kasama ,  Koji Uno ,  Nobuyuki Hayashi

    IPC: G03G15/20 ,  G03G15/00

    Abstract: An image forming apparatus has an image forming portion, a fixing device, a temperature sensing device, and a control portion. The fixing device has a fixing member having a heated rotary member and a pressing member forming a fixing nip by making contact with the heated rotary member. The temperature sensing device senses the surface temperature of at least one of the heated rotary member and the pressing member in a plurality of regions in the axial direction. The control portion estimates the thickness distribution of the surface layer of at least one of the heated rotary member and the pressing member in the axial direction based on the time taken for the surface temperature in the plurality of regions to reach the predetermined temperature, and thereby estimates the lifetime of at least one of the heated rotary member or the pressing member based on the estimated thickness distribution.

    Image forming apparatus
    9.
    发明授权
    Image forming apparatus 有权

    公开(公告)号：US09835989B2

    公开(公告)日：2017-12-05

    申请号：US15407567

    申请日：2017-01-17

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Yuta Kitabayashi

    IPC: G03G15/16

    CPC classification number: G03G15/1665 ,  G03G15/1605 ,  G03G15/1675 ,  G03G2215/0132

    Abstract: An image forming apparatus 1 includes four developing devices 43, four primary transfer rollers 51, an intermediate transfer belt 54, voltage applicators 61, a current detector 62 and a voltage controller 911. The voltage applicators 61 each apply a voltage to a corresponding one of the four primary transfer rollers 51. The current detector 62 detects a first total current value JS of currents flowing through the four primary transfer rollers 51. The voltage applicators 61 apply a detection voltage VS to a primary transfer roller 51y among the four primary transfer rollers 51 while applying a voltage having the same polarity as the detection voltage VS to all the other primary transfer rollers 51c, 51m, and 51k. The detection voltage VS is applied to detect a resistance value Ry of the primary transfer roller 51y. The detection voltage VS has a predetermined voltage value.

    IMAGE FORMING APPARATUS
    10.
    发明申请
    IMAGE FORMING APPARATUS 审中-公开

    公开(公告)号：US20170315488A1

    公开(公告)日：2017-11-02

    申请号：US15497877

    申请日：2017-04-26

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Yuta Kitabayashi

    IPC: G03G15/00

    CPC classification number: G03G15/5054 ,  G03G15/1675

    Abstract: A characteristic measuring portion measures current-voltage characteristics of a primary transfer member before a toner image for a first surface of a sheet is primarily transferred. A characteristic information storage portion stores characteristic information that indicates the current-voltage characteristics. A first transfer voltage determining portion determines a first transfer voltage based on a first target current value and the characteristic information. A second transfer voltage determining portion determines a second transfer voltage based on a second target current value and the characteristic information that was used when the first transfer voltage was determined, the second target current value being smaller than the first target current value. A voltage control portion applies the first and second transfer voltages to the primary transfer member by a constant-voltage method when the toner images for the first and second surfaces of the sheet are primarily transferred, respectively.

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