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    Image forming apparatus controlling current balance based on environmental conditions
    21.
    发明授权
    Image forming apparatus controlling current balance based on environmental conditions 有权

    公开(公告)号：US12174563B2

    公开(公告)日：2024-12-24

    申请号：US18083016

    申请日：2022-12-16

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Kaito Sunamura ,  Shuji Saito

    IPC: G03G15/16 ,  G03G15/00

    Abstract: An image forming apparatus includes an image bearing member, an intermediary transfer member having ion conductivity and a rotatable endless belt shape, a primary transfer member, a secondary transfer member, a cleaning member, an environment sensor and a controller. Based on a result of the environment sensor, the controller controls so as to change a current balance based on an integrated value of a first current value and an integrated value of a second current value. The first current value is a current flowing from inside of the intermediary transfer member to outside thereof and the second current value is a current flowing from outside of the intermediary transfer member to inside thereof.

    IMAGE FORMING APPARATUS
    22.
    发明申请
    IMAGE FORMING APPARATUS 审中-公开

    公开(公告)号：US20190332038A1

    公开(公告)日：2019-10-31

    申请号：US16383192

    申请日：2019-04-12

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Shuji Saito ,  Ken Yokoyama ,  Noriaki Egawa ,  Koujirou Izumidate ,  Masatsugu Toyonori

    IPC: G03G15/14 ,  G03G15/16 ,  G03G15/00

    Abstract: An intermediate transfer belt includes, on a surface in contact with a photosensitive drum and a cleaning blade, a plurality of grooves formed along a moving direction of the intermediate transfer belt in a width direction which intersects the moving direction of the intermediate transfer belt. Further, the intermediate transfer belt includes a plurality of first regions in which adjacent grooves in the width direction are arranged at a predetermined interval, and a second region which is positioned between the plurality of first regions and in which an interval between adjacent grooves in the width direction is different from the predetermined interval. The second region is arranged outside, in the width direction of the intermediate transfer belt, a range in which a patch toner is to be formed in concentration correction.

    Fixing device with back-up member and nip forming member including a projecting portion projecting toward the back-up member
    24.
    发明授权
    Fixing device with back-up member and nip forming member including a projecting portion projecting toward the back-up member 有权
    具有支撑构件和夹持形成构件的固定装置包括朝向支撑构件突出的突出部分

    公开(公告)号：US09477191B2

    公开(公告)日：2016-10-25

    申请号：US15001489

    申请日：2016-01-20

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Noriaki Sato ,  Yasutaka Yagi ,  Hiroshi Kataoka ,  Eiji Uekawa ,  Keisuke Mochizuki ,  Shuji Saito ,  Naoto Tsuchihashi

    IPC: G03G15/20

    CPC classification number: G03G15/2064 ,  G03G15/2053

    Abstract: A fixing device includes: a cylindrical film; a nip forming member; and a back-up member for forming a nip. The nip forming member includes a projected portion. The projection amount of the projected portion is smaller in an end portion region positioned at an end portion of the projected portion with respect to a generatrix direction of the film than in a central region positioned at a central portion of the projected portion with respect to the generatrix direction, at least a part of the end portion region being inside a feeding region of a maximum-sized recording material usable in the fixing device. With respect to the recording material feeding direction, the width of the part of the projected portion inside the nip is broader in the end portion region than in the central region.

    Abstract translation: 定影装置包括：圆柱形膜; 辊隙形成构件; 以及用于形成辊隙的支撑构件。 辊隙形成构件包括突出部分。 突出部分的突出量在位于突出部分的端部相对于膜的母线方向的端部区域中小于在位于突出部分的中心部分的中心区域相对于 母线方向，端部区域的至少一部分位于可用于定影装置的最大尺寸记录材料的进给区域的内部。 相对于记录材料供给方向，辊隙内的突出部分的部分的宽度在端部区域比在中心区域宽。

    Image forming apparatus
    25.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US09261826B2

    公开(公告)日：2016-02-16

    申请号：US14737901

    申请日：2015-06-12

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Hiroshi Kataoka ,  Shuji Saito

    IPC: G03G15/20

    CPC classification number: G03G15/2028 ,  G03G15/2039 ,  G03G15/2042 ,  G03G15/6564 ,  G03G2215/00468 ,  G03G2215/00759 ,  G03G2215/2035

    Abstract: An acquisition portion acquires a rate of a size of a toner image being formed in a predetermined area on a recording material to a size of the predetermined area, in a consecutive print job, a control portion sets a longer conveyance interval between a preceding recording material and a subsequent recording material when the rate of the subsequent recording material exceeds a threshold than when the rate of the subsequent recording material does not exceed the threshold, and the predetermined area on a trailing end side of the recording material with respect to a center of the recording material in a recording material conveying direction is larger than the predetermined area on a leading end side of the recording material with respect to the center of the recording material, or the predetermined area is only on the trailing end side of the recording material.

    Abstract translation: 获取部分获取在记录材料上的预定区域中形成的调色剂图像的大小与所述预定区域的尺寸的比率，在连续打印作业中，控制部分设置在前一记录材料之间较长的传送间隔 以及随后的记录材料的速率比后续记录材料的速率不超过阈值时的后续记录材料的速度以及相对于记录材料的中心的记录材料的后端侧的预定区域 记录材料传送方向上的记录材料大于记录材料的前端侧相对于记录材料的中心的预定面积，或者预定区域仅在记录材料的后端侧。

    Image forming apparatus
    26.
    发明授权
    Image forming apparatus 有权

    公开(公告)号：US11619894B2

    公开(公告)日：2023-04-04

    申请号：US17467531

    申请日：2021-09-07

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Shuji Saito

    IPC: G03G15/16 ,  G03G15/01 ,  G03G15/043

    Abstract: An image forming apparatus includes an exposing unit, an intermediary transfer belt, a cleaning blade to clean a remaining toner on the intermediary transfer belt, and a controller to control so as to form a toner image on the intermediary transfer belt to supply toner as a lubricant of the cleaning blade. The controller controls a first line count when a first toner image is formed to supply the toner to the cleaning blade to become fewer than a second line count when a second toner image is formed to transfer to a recording material.

    Image forming apparatus and intermediate transfer member
    27.
    发明授权
    Image forming apparatus and intermediate transfer member 有权

    公开(公告)号：US11022922B2

    公开(公告)日：2021-06-01

    申请号：US16901438

    申请日：2020-06-15

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Shuji Saito ,  Seiji Nakahara ,  Ken Yokoyama ,  Hiroshi Kita ,  Koujirou Izumidate ,  Kazushi Ino

    IPC: G03G15/00 ,  G03G15/16

    Abstract: An image forming apparatus including: a movable intermediate transfer member onto which a toner image borne by an image bearing member is to be transferred; a detection unit configured to irradiate the toner image on the intermediate transfer member with light to detect reflected light; and a control unit configured to adjust a condition for forming the toner image based on a detection result of the detection unit, wherein a plurality of grooves extending along a movement direction of the intermediate transfer member are formed in a surface of the intermediate transfer member in a width direction intersecting the movement direction, and wherein grooves, formed within a range of the intermediate transfer member to which the light is irradiated by the detection unit, among the plurality of grooves are formed so that intervals each between adjacent grooves with respect to the width direction are regularly changed within a predetermined range.

    Image forming apparatus utilizing adjustment toner image
    29.
    发明授权
    Image forming apparatus utilizing adjustment toner image 有权

    公开(公告)号：US09665043B2

    公开(公告)日：2017-05-30

    申请号：US14980542

    申请日：2015-12-28

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Kazuhiro Funatani ,  Masanori Asai ,  Shuji Saito ,  Hiroyuki Seki ,  Yasutaka Yagi ,  Tetsuichiro Fujimoto

    IPC: G03G15/00 ,  G03G15/16

    CPC classification number: G03G15/161 ,  G03G2215/1661

    Abstract: An image forming apparatus includes a controller for forming an adjustment toner image in a region corresponding to between a first region corresponding to a preceding sheet and a second region corresponding to a subsequent sheet, wherein the controller selectively executes a first mode for setting as a first length a gap between the adjustment image and a trailing edge of the first region and for setting as a second length a gap between the adjustment toner image and a leading end of the second region, or a second mode for setting as a third length a gap between the adjustment toner image and the trailing edge of the first region and for setting as a fourth length a gap between the adjustment image and the leading end of the second region. The third is shorter than the first, and the fourth length is longer than the first length.

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