公开(公告)号：US20160132009A1

公开(公告)日：2016-05-12

申请号：US14935248

申请日：2015-11-06

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ryo Yashiro ,  Hidekazu Maruta ,  Masayuki Tamaki ,  Ryo Suzuki ,  Mitsuru Hasegawa ,  Rikiya Takemasa ,  Koichi Kakubari ,  Shigeru Hirano

IPC: G03G15/20

CPC classification number: G03G21/1685 ,  G03G15/2053 ,  G03G21/1647 ,  G03G2215/0129 ,  G03G2215/2035

Abstract: A fixing apparatus including a flexible belt having a heat generating layer, an outer ring provided on one edge side of the belt and along an outer peripheral surface of the belt, the outer ring being electrically connected to the heat generating layer, an inner ring provided on the one edge side of the belt and along an inner peripheral surface of the belt to face the outer ring through the belt, and a power supply unit that is electrically connected to the outer ring and that feeds power. A difference obtained by subtracting a diameter of the inner ring at a normal temperature from a diameter of the inner ring at a fixing temperature is equivalent to or larger than a difference obtained by subtracting a diameter of the outer ring at the normal temperature from a diameter of the outer ring at the fixing temperature.

Abstract translation: 一种定影装置，包括具有发热层的柔性带，设置在所述带的一个边缘侧并沿着所述带的外周表面的外环，所述外环电连接到所述发热层， 在所述带的一个边缘侧并且沿着所述带的内周表面通过所述带对着所述外环，以及电源单元，其电连接到所述外圈并且供电。 在定影温度下从内圈的直径减去常温下的内圈直径而得到的差异等于或大于在常温下从外径减去直径的差 的外圈在定影温度下。

公开(公告)号：US20140248071A1

公开(公告)日：2014-09-04

申请号：US14279545

申请日：2014-05-16

Applicant: CANON KABUSHIKI KAISHA

Inventor： Katsuhisa Matsunaka ,  Yutaka Arai ,  Jun Miura ,  Jiro Ishizuka ,  Shuichi Tamura ,  Ryo Yashiro ,  Hiroto Sugimoto ,  Naoki Akiyama ,  Kenji Hashimoto ,  Yasuhiro Miyahara ,  Hiroki Muramatsu ,  Koji Sato

IPC: G03G15/20

CPC classification number: G03G15/2057 ,  G03G15/2017

Abstract: Provided is a fixing device whose required heat generation amount can be obtained with a smaller amount of a microwave absorbing material, hence start-up (warm-up) time for achieving fixable temperature of the fixing device can be shortened without impairing characteristics such as flexibility, releasing property, durability. The fixing device comprises: a heating member; a pressurizing member; and a microwave generating unit, the fixing device being configured to fix an unfixed toner on a recording material by passing the recording material through a nip formed between the heating member and the pressurizing member, wherein: the heating member includes a heat generating layer for generating heat with microwave generated by the microwave generating unit; and the heat generating layer contains a high molecular compound and a carbon fiber having an average fiber diameter of 80-150 nm, an average fiber length of 6-10 μm, and in Raman spectrum, an absorption peak resulting from graphite structure.

Abstract translation: 提供了一种定影装置，其能够用较少量的微波吸收材料获得所需的发热量，因此可以缩短用于实现定影装置的可固定温度的启动（预热）时间，而不会损害诸如柔性的特性 ，释放性能，耐用性。 定影装置包括：加热构件; 加压构件; 微波发生单元，所述定影装置被配置为通过使所述记录材料通过所述加热构件和所述加压构件之间形成的辊隙而将未定影调色剂固定在记录材料上，其中：所述加热构件包括用于产生 用微波产生单元产生的微波加热; 并且发热层含有平均纤维直径为80-150nm，平均纤维长度为6-10μm的拉曼光谱，由石墨结构产生的吸收峰的高分子化合物和碳纤维。

公开(公告)号：US20160098002A1

公开(公告)日：2016-04-07

申请号：US14875498

申请日：2015-10-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ryo Yashiro ,  Hidekazu Maruta ,  Masayuki Tamaki ,  Ryo Suzuki ,  Mitsuru Hasegawa ,  Rikiya Takemasa ,  Koichi Kakubari ,  Shigeru Hirano

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/0129 ,  G03G2215/2035

Abstract: An image heating apparatus includes a heating belt having a heat generating layer configured to generate heat by energization, a pressing roller configured to abut on an outer peripheral surface of the heating belt to form a nip portion, a pressing mechanism configured to press the heating belt against the pressing roller, an outer ring electrically connected to the heating belt in an end portion of the heating belt, a power feed member configured to abut on the outer ring to feed power to the outer ring, and an inner ring configured to clamp the end portion of the heating belt between the inner ring and the outer ring. A chamfered portion of the inner ring is chamfered.

Abstract translation: 图像加热装置包括：加热带，其具有通过通电而被配置为产生热的发热层;加压辊，其构造成抵接在加热带的外周面上以形成夹持部;压紧机构，其构造成将加热带 与所述加压辊相对的外环，在所述加热带的端部与所述加热带电连接的外环，被配置为抵靠所述外圈以向所述外环供电的供电部件，以及内环， 内圈和外圈之间的加热带的端部。 内圈的倒角部分被倒角。

公开(公告)号：US09086664B2

公开(公告)日：2015-07-21

申请号：US14279545

申请日：2014-05-16

Applicant: CANON KABUSHIKI KAISHA

Inventor： Katsuhisa Matsunaka ,  Yutaka Arai ,  Jun Miura ,  Jiro Ishizuka ,  Shuichi Tamura ,  Ryo Yashiro ,  Hiroto Sugimoto ,  Naoki Akiyama ,  Kenji Hashimoto ,  Yasuhiro Miyahara ,  Hiroki Muramatsu ,  Koji Sato

IPC: G03G15/20

CPC classification number: G03G15/2057 ,  G03G15/2017

Abstract: Provided is a fixing device, the heat generation amount of which can be obtained with a smaller amount of a microwave absorbing material. As a result, the start-up (warm-up) time for achieving a fixing temperature can be shortened without impairing characteristics such as flexibility, releasing property, and durability. The fixing device includes a heating member; a pressurizing member; and a microwave generating unit. It is configured to fix an unfixed toner on a recording material by passing the recording material through a nip formed between the heating member and the pressurizing member. The heating member includes a heat generating layer for generating heat with microwaves generated by the microwave generating unit. The heat generating layer contains a high molecular compound and a carbon fiber having an average fiber diameter of 80-150 nm, an average fiber length of 6-10 μm, and an absorption peak in a Raman spectrum resulting from a graphite structure.

Abstract translation: 提供了一种定影装置，其发热量可以用较少量的微波吸收材料获得。 结果，可以缩短用于实现定影温度的启动（预热）时间，而不会损害诸如柔性，释放性能和耐久性的特性。 定影装置包括加热构件; 加压构件; 和微波发生单元。 通过使记录材料通过加热构件和加压构件之间形成的辊隙，将未定影的调色剂固定在记录材料上。 加热构件包括用微波产生单元产生的微波产生热的发热层。 发热层含有高分子化合物和平均纤维直径为80-150nm，平均纤维长度为6-10μm的碳纤维和由石墨结构产生的拉曼光谱中的吸收峰。

公开(公告)号：US20200150569A1

公开(公告)日：2020-05-14

申请号：US16739703

申请日：2020-01-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ryo Yashiro ,  Shuichi Tamura ,  Hiroshi Miyamoto ,  Naoyuki Yamamoto ,  Shinsuke Takahashi

IPC: G03G15/20

Abstract: An endless belt, a heat source, a rotatable member forming a nip together with a belt, a nip forming member which includes a first member having a U-shape made of metal and open on a side opposite from the rotatable member and which includes a second member provided inside the first member, a contact member contacting an inner peripheral surface of the belt, a reflecting portion for reflecting, toward the inner peripheral surface of the belt, radiation heat from the heat source toward the nip forming member, and a heat conducting portion, contacting the contact member, for conducting heat of the reflecting portion to the contact member, and a heat insulating member provided between the first member and the second member are provided, and a thickness t (μm) and thermal conductivity λ (W/m·K) satisfy: t≥100 (μm) 0.02 (W/m·K)≤λ≤0.05 (W/m·K).

公开(公告)号：US20180046117A1

公开(公告)日：2018-02-15

申请号：US15670179

申请日：2017-08-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiroki Muramatsu ,  Toshinori Nakayama ,  Kota Arimoto ,  Masayuki Tamaki ,  Yusuke Yamaguchi ,  Ryo Yashiro ,  Matsutaka Maeda ,  Yuji Kitano ,  Yoshihito Oshima

IPC: B32B9/04 ,  G03G15/20

CPC classification number: G03G15/2003 ,  G03G15/1615 ,  G03G15/162 ,  G03G15/2057 ,  G03G2215/2035

Abstract: Provided is an endless belt-shaped electrophotographic member having a superior durability. The member comprises an endless belt-shaped substrate and a surface layer, the surface layer comprising an ionizing radiation crosslinked product of a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), the surface layer is formed by irradiation of electron beam to a resin layer, the resin layer comprising the PFA, the surface layer has a universal hardness HU at 200° C. of 18 N/mm2≦HU≦40 N/mm2, and when a degree of orientation of the PFA in the resin layer in a direction orthogonal to the circumferential direction of the substrate is defined as Ri, and a degree of orientation of the crosslinked PFA in the surface layer in the direction orthogonal to the circumferential direction of the substrate is defined as Rf, Ri and Rf satisfy a relationship represented by expression (1): Ri×0.8≦Rf≦Ri  (1).

公开(公告)号：US12066774B2

公开(公告)日：2024-08-20

申请号：US18322042

申请日：2023-05-23

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yasuharu Chiyoda ,  Masayuki Tamaki ,  Ryo Yashiro ,  Shinsuke Takahashi ,  Dai Kanai

IPC: G03G15/20

CPC classification number: G03G15/2017 ,  G03G15/20 ,  G03G15/2028 ,  G03G15/2046 ,  G03G15/2053 ,  G03G2215/2003 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2038 ,  G03G2215/2061

Abstract: A fixing apparatus includes a fixing belt, a heating roller, a nip portion forming member, a pressing rotary member, a suspending roller, and an urging unit. The heating roller is in contact with an inner surface of the fixing belt and heats the fixing belt. The suspending roller has a center and both ends in an area where the fixing belt and the suspending roller are in contact with each other in a width direction of the suspending roller. Outside diameters at both ends are greater than an outside diameter at the suspending roller center by a value between 50 micrometer and 300 micrometer, inclusive. The urging unit urges the suspending roller from the inner surface of the fixing belt toward an outer circumference surface of the fixing belt. A force that the urging unit applies to the suspending roller ranges between 50 newtons and 100 newtons, inclusive.

公开(公告)号：US20170227901A1

公开(公告)日：2017-08-10

申请号：US15499650

申请日：2017-04-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： Rikiya Takemasa ,  Hidekazu Maruta ,  Masayuki Tamaki ,  Ryo Suzuki ,  Mitsuru Hasegawa ,  Ryo Yashiro ,  Koichi Kakubari ,  Shigeru Hirano

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/2035 ,  H05B3/0095

Abstract: An image heating device includes a fixing belt (100) including a heat generating layer (102); a pressure roller (110) configured to rotationally drive the fixing belt; a power feed ring (119) disposed at one end of the fixing belt in a longitudinal direction and extending along an outer periphery of the fixing belt, the power feed ring being electrically connected to the heat generating layer; a brush (81) configured to be brought into contact with an outer periphery of the power feed ring and electrically connected to the power feed ring; a power supply circuit (79) configured to feed power to the brush; and a leaf spring (82) configured to elastically press the brush toward the power feed ring, the leaf spring being configured to come into contact with the power feed ring when the brush wears by a predetermined amount.

公开(公告)号：US09372455B2

公开(公告)日：2016-06-21

申请号：US14875498

申请日：2015-10-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ryo Yashiro ,  Hidekazu Maruta ,  Masayuki Tamaki ,  Ryo Suzuki ,  Mitsuru Hasegawa ,  Rikiya Takemasa ,  Koichi Kakubari ,  Shigeru Hirano

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/0129 ,  G03G2215/2035

Abstract: An image heating apparatus includes a heating belt having a heat generating layer configured to generate heat by energization, a pressing roller configured to abut on an outer peripheral surface of the heating belt to form a nip portion, a pressing mechanism configured to press the heating belt against the pressing roller, an outer ring electrically connected to the heating belt in an end portion of the heating belt, a power feed member configured to abut on the outer ring to feed power to the outer ring, and an inner ring configured to clamp the end portion of the heating belt between the inner ring and the outer ring. A chamfered portion of the inner ring is chamfered.

Abstract translation: 图像加热装置包括：加热带，其具有通过通电而被配置为产生热的发热层;加压辊，其构造成抵接在加热带的外周面上以形成夹持部;压紧机构，其构造成将加热带 与所述加压辊相对的外环，在所述加热带的端部与所述加热带电连接的外环，被配置为抵靠所述外圈以向所述外环供电的供电部件，以及内环， 内圈和外圈之间的加热带的端部。 内圈的倒角部分被倒角。

公开(公告)号：US12105454B2

公开(公告)日：2024-10-01

申请号：US18306952

申请日：2023-04-25

Applicant: CANON KABUSHIKI KAISHA

Inventor： Masayuki Tamaki ,  Shinsuke Takahashi ,  Ryo Yashiro ,  Yasuharu Chiyoda ,  Dai Kanai

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2028 ,  G03G15/2064 ,  G03G2215/2038

Abstract: A fixing device includes a rotatable endless belt, a pressing roller and a fixing pad. The pressing roller contacts an outer peripheral surface of the belt and forms a nip portion in cooperation with the belt. A toner image is formed in the nip portion and fixed onto the recording material by application of heat and pressure. The fixing pad contacts an inner peripheral surface of the belt. The fixing pad includes a contact area in contact with the inner peripheral surface of the belt. The contact area includes a downstream end portion with respect to a conveyance direction of the recording material. The downstream end portion includes a central portion and both end portions with respect to a widthwise direction of the belt. The central portion locates downstream of the both end portions with respect to the conveyance direction.