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    IMAGE FORMING APPARATUS
    1.
    发明申请
    IMAGE FORMING APPARATUS 审中-公开

    公开(公告)号：US20200249597A1

    公开(公告)日：2020-08-06

    申请号：US16773063

    申请日：2020-01-27

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Takuma Tadomi ,  Daigo Matsuura ,  Shigeaki Takada ,  Masayuki Tamaki ,  Yasuharu Chiyoda ,  Masahiro Tsujibayashi

    IPC: G03G15/20 ,  G03G15/00

    Abstract: An image forming apparatus includes a control portion configured to output, in a test mode, a recording member which has passed through a fixing nip portion in a case of a first temperature difference in which a center part temperature of a first rotary member is higher than an end part temperature of the first rotary member and a recording member which has passed through the fixing nip portion in a case of a second temperature difference in which the center part temperature is lower than the end part temperature by one operation of starting test mode to the input portion.

    Image forming apparatus
    2.
    发明授权
    Image forming apparatus 有权

    公开(公告)号：US10691053B2

    公开(公告)日：2020-06-23

    申请号：US16505081

    申请日：2019-07-08

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Shigeaki Takada ,  Daigo Matsuura ,  Masayuki Tamaki ,  Yasuharu Chiyoda ,  Masahiro Tsujibayashi

    IPC: G03G15/00 ,  G03G15/20

    Abstract: A pair of rotary members nips and conveys a recording material and a heating element heats a toner image on the recording material via the pair of rotary members. A separating mechanism separates the pair of rotary members. A heating time recording portion records a cumulative length of a period during which the pair of rotary members in an abutted state is heated as a first heating time and a cumulative length of the period during which the pair of rotary members in a separated state is heated as a second heating time. A determining portion determines a remaining lifetime of the pair of rotary members using the first and second heating times and data indicating a relationship between length of the period during which the pair of rotary members is heated and decrease in lifetime of the pair of rotary members.

    Image heating apparatus
    6.
    发明授权
    Image heating apparatus 有权
    图像加热装置

    公开(公告)号：US09392642B2

    公开(公告)日：2016-07-12

    申请号：US13728010

    申请日：2012-12-27

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Masanobu Tanaka ,  Oki Kitagawa ,  Shigeaki Takada ,  Akiyoshi Shinagawa ,  Hiroki Kawai

    IPC: B21B27/06 ,  H05B3/02 ,  H05B1/00 ,  H05B3/00 ,  H05B11/00 ,  G03G15/20 ,  H05B1/02

    CPC classification number: H05B1/00 ,  G03G15/2025 ,  G03G15/2039 ,  G03G15/2064 ,  H05B1/0241 ,  H05B3/0095

    Abstract: An image heating apparatus includes: an image heating roller in a nip; a nip forming member; a heating roller rubbing roller; a moving mechanism for moving the rubbing roller between a spaced position and a rubbing position; and a controller for executing operations in first and second modes. In the first mode, the heating roller is rotated with the rubbing roller in the spaced position and the heating roller in contact with the nip forming member with a target temperature of the heating roller higher than that of the nip forming member. In the second mode, the rubbing roller is contacted with the heating roller, rubbing the surface of the heating roller. The temperature difference in the first mode between the target temperature of the heating roller and that of the nip forming member is larger than the temperature difference when the toner image is heated by the nip.

    Abstract translation: 图像加热装置包括：辊隙中的图像加热辊; 辊隙形成构件; 加热辊摩擦辊; 移动机构，用于在间隔位置和摩擦位置之间移动摩擦辊; 以及用于在第一和第二模式中执行操作的控制器。 在第一模式中，加热辊随着摩擦辊在间隔位置旋转，加热辊与辊隙形成部件接触，加热辊的目标温度高于辊隙形成部件的目标温度。 在第二模式中，摩擦辊与加热辊接触，摩擦加热辊的表面。 加热辊的目标温度和辊隙形成部件的目标温度之间的第一模式中的温度差大于通过辊隙加热调色剂图像时的温度差。

    Fixing device having rotatable pressing member with needle-like filler
    7.
    发明授权
    Fixing device having rotatable pressing member with needle-like filler 有权
    固定装置具有带有针状填料的可旋转的按压构件

    公开(公告)号：US09348283B2

    公开(公告)日：2016-05-24

    申请号：US14798613

    申请日：2015-07-14

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Shigeaki Takada ,  Toshinori Nakayama ,  Masayuki Tamaki ,  Naoki Akiyama ,  Akeshi Asaka ,  Koichi Kakubari ,  Yutaka Arai ,  Jun Miura

    IPC: G03G15/20

    CPC classification number: G03G15/206 ,  G03G15/2042 ,  G03G2215/2035

    Abstract: A fixing device includes a rotatable heating member and a rotatable pressing member which are configured to fix a toner image on a recording material in a nip therebetween; and a heating mechanism configured to selectively heat regions of the rotatable heating member depending on sizes of the recording material when the sizes are predetermined ones of all sizes usable in the fixing device. The rotatable pressing member includes a base layer and a porous elastic layer provided on the base layer and containing a needle-like filler. The elastic layer having a thermal conductivity, with respect to a longitudinal direction thereof, which is 6 times to 900 times a thermal conductivity with respect to a thickness direction thereof.

    Abstract translation: 定影装置包括可旋转加热构件和可旋转的按压构件，其被配置为将调色剂图像固定在其间的间隙中的记录材料上; 以及加热机构，其构造成当尺寸是可用于定影装置中的所有尺寸中的预定尺寸时，根据记录材料的尺寸选择性地加热可旋转加热构件的区域。 可旋转按压构件包括基底层和设置在基底层上并包含针状填充物的多孔弹性层。 弹性层相对于其长度方向具有相对于其厚度方向的导热性的6〜900倍的热导率。

    ELASTIC ROLLER AND FIXING DEVICE
    9.
    发明申请
    ELASTIC ROLLER AND FIXING DEVICE 有权
    弹性滚筒和固定装置

    公开(公告)号：US20160018771A1

    公开(公告)日：2016-01-21

    申请号：US14798230

    申请日：2015-07-13

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Yutaka Arai ,  Takeshi Suzuki ,  Jun Miura ,  Shigeaki Takada ,  Toshinori Nakayama ,  Naoki Akiyama ,  Daigo Matsuura ,  Yasuhiro Miyahara ,  Akeshi Asaka ,  Shuichi Tamura ,  Katsuhisa Matsunaka ,  Shinsuke Takahashi ,  Hiroto Sugimoto

    IPC: G03G15/20 ,  B25F5/02 ,  F16C13/00

    CPC classification number: G03G15/206 ,  G03G2215/2035

    Abstract: An elastic layer includes a needle-shaped filler and a void and has a porosity of 20 vol % or more and 60 vol % or less. The elastic layer contains a first area and a second area. The first area extends from a surface of the elastic layer opposite to a surface facing the mandrel toward the mandrel and has a thickness of 30% of the thickness of the elastic layer. The second area is a central area in a thickness direction of the elastic layer and has a thickness of 40% of the thickness of the elastic layer. The needle-shaped filler in the second area has an orientation degree of 50% or lower. The needle-shaped filler in the first area has an orientation degree higher than that of the needle-shaped filler in the second area.

    Abstract translation: 弹性层包括针状填料和空隙，孔隙率为20体积％以上且60体积％以下。 弹性层包含第一区域和第二区域。 第一区域从弹性层的与面向心轴的表面相对的表面朝向心轴延伸，并且具有弹性层厚度的30％的厚度。 第二区域是弹性层的厚度方向的中心区域，其厚度为弹性层的40％。 第二区域中的针状填料的取向度为50％以下。 第一区域中的针状填料的取向度高于第二区域中针状填料的取向度。

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