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1. 发明申请

US20210191299A1 FIXING DEVICE 有权
公开(公告)号：US20210191299A1
公开(公告)日：2021-06-24
申请号：US17123793
申请日：2020-12-16
申请人： Canon Kabushiki Kaisha
发明人： Rikiya Takemasa , Youichi Chikugo , Hidekazu Tatezawa , Kenichi Tanaka , Yutaro Tsuno , Mitsuru Hasegawa , Hiroki Kawai , Suguru Takeuchi , Ayano Ogata , Yasuharu Toratani
IPC分类号： G03G15/20
摘要： A toner image fixing device include a fixing belt; a heating roller training the belt around; a pressing pad of resin material provided inside the belt; a rotatable pressing member contacting the belt and pressing against the pad through the belt to form a nip for nipping and feeding the sheet; a supporting stay supporting the pad and including a surface contacting the pad, one of the pad and the stay being provided with a projection, and the other being provided with a recess engaged with the projection at an engaging position; and a separation plate provided without contact to the belt at a position opposed to the pad downstream of the nip in the sheet feeding direction. A distance between the engaging position and a downstream end of the pad is 0-35% of a length of the pad measured along the feeding direction.

2. 发明申请

US20200133184A1 IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20200133184A1
公开(公告)日：2020-04-30
申请号：US16658412
申请日：2019-10-21
申请人： CANON KABUSHIKI KAISHA
发明人： Daigo Matsuura , Yasuharu Chiyoda , Shigeru Tanaka , Mitsuru Hasegawa , Yusuke Yamaguchi , Shigeru Hirano
IPC分类号： G03G15/00
摘要： An image forming apparatus includes an image forming portion capable of forming a toner image on an envelope including a flap; a stacking portion configured to stack the envelope; a fixing portion configured to fix the toner image on the envelope; a display portion configured to display information; and a controller configured to control the display portion so that when the double-side mode in which the images are formed on the double sides of the envelope is selected, a stacking method in which the envelope is stacked on the stacking portion so as to fix the image on a flap-formed side when the envelope first passes through the fixing portion is displayed at the display portion.

3. 发明授权

US09753429B2 Image heating apparatus 有权
公开(公告)号：US09753429B2
公开(公告)日：2017-09-05
申请号：US14935248
申请日：2015-11-06
申请人： CANON KABUSHIKI KAISHA
发明人： Ryo Yashiro , Hidekazu Maruta , Masayuki Tamaki , Ryo Suzuki , Mitsuru Hasegawa , Rikiya Takemasa , Koichi Kakubari , Shigeru Hirano
IPC分类号： G03G15/20 , G03G21/16
CPC分类号： G03G21/1685 , G03G15/2053 , G03G21/1647 , G03G2215/0129 , G03G2215/2035
摘要： 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.

4. 发明授权

US10241433B2 Image forming apparatus that controls a fixing condition of a fixing portion based on a shape of a sheet to be used in image formation 有权
公开(公告)号：US10241433B2
公开(公告)日：2019-03-26
申请号：US15933755
申请日：2018-03-23
申请人： CANON KABUSHIKI KAISHA
发明人： Shigeru Tanaka , Yasuharu Chiyoda , Daigo Matsuura , Mitsuru Hasegawa , Yusuke Yamaguchi , Shigeru Hirano
IPC分类号： G03G15/20 , G03G13/20 , G03G13/16
摘要： An image forming apparatus includes a reading configured to read a shape of a sheet to be used for image formation, and an original sheet carrying an original image, and an image forming portion configured to form a toner image, corresponding to the original image read by the reading portion, on the sheet to be used for image formation. A fixing portion is configured to fix the toner image, formed by the image forming portion, to the sheet to be used for image formation. In addition, a controller is configured to control a fixing condition of the fixing portion in accordance with the shape of the sheet to be used for image formation read by the reading portion.

5. 发明授权

US08971746B2 Image heating apparatus and image forming apparatus 有权
标题翻译：图像加热装置和图像形成装置
公开(公告)号：US08971746B2
公开(公告)日：2015-03-03
申请号：US13966620
申请日：2013-08-14
申请人： Canon Kabushiki Kaisha
发明人： Mitsuru Hasegawa , Kota Arimoto
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2042
摘要： A control portion executes a measuring mode and generates a value for adjusting a pressurizing mechanism reflecting a difference of pressurizing conditions of a longitudinal center part and a longitudinal end part of a nip portion. The measuring mode is a mode of detecting temperatures of the nip portion by temperature detecting elements in a process of changing temperature of the nip portion heated by a heater and of generating control information based on detected results. The control information is generated in response to a difference of temperature increase amounts of the temperature detecting elements in a predetermined time in the process of increasing the temperature of the nip portion. The control portion adjusts the pressurizing mechanism based on the control value obtained in the measuring mode after executing a process of heating a recording medium in succession of the process of increasing the temperature of the nip portion.
摘要翻译：控制部执行测定模式，生成反映辊隙部的纵向中心部和纵向端部的加压条件差的加压机构的值。测量模式是通过温度检测元件在由加热器加热的夹持部的温度变化的过程中检测压区的温度并基于检测结果生成控制信息的模式。在增加压区部分的温度的过程中，响应于温度检测元件的温度增加量在预定时间内的差异而产生控制信息。控制部根据在增加压区部的温度的处理中进行加热记录介质的处理后，基于在测定模式中得到的控制值来调整加压机构。

6. 发明申请

US20220308508A1 FIXING UNIT 有权
公开(公告)号：US20220308508A1
公开(公告)日：2022-09-29
申请号：US17706448
申请日：2022-03-28
申请人： CANON KABUSHIKI KAISHA
发明人： Mitsuru Hasegawa , Hiroki Kawai , Ayano Ogata , Yasuharu Toratani , Suguru Takeuchi , Youichi Chikugo , Hidekazu Tatezawa , Yutaro Tsuno , Kenichi Tanaka , Rikiya Takemasa
IPC分类号： G03G15/20
摘要： An image forming apparatus includes a heating rotary member, a pressure rotary member, a nip portion formed by the rotary members, a temperature adjustment control section controlling a temperature of the heating rotary member to a target temperature, a cleaning web removing toner adhering to the heating rotary member, and a controller selectively executing one of a cleaning mode and a non-cleaning mode. A first basis weight and a second basis weight greater than the first predetermined basis weight are set, in a job that mixedly uses recording media with the first and second basis weights. When the controller executes the non-cleaning mode, the temperature adjustment control section sets a target temperature of a recording medium with a basis weight less than or equal to the first basis weight to a temperature lower than a target temperature of the recording medium in the cleaning mode.

7. 发明授权

US11300906B2 Fixing device 有权
公开(公告)号：US11300906B2
公开(公告)日：2022-04-12
申请号：US17123773
申请日：2020-12-16
申请人： Canon Kabushiki Kaisha
发明人： Rikiya Takemasa , Hidekazu Tatezawa , Yutaro Tsuno , Kenichi Tanaka , Youichi Chikugo , Mitsuru Hasegawa , Hiroki Kawai , Suguru Takeuchi , Ayano Ogata , Yasuharu Toratani
IPC分类号： G03G15/20
摘要： A fixing device for fixing a toner image on a sheet includes a rotatable fixing belt; a heating roller wherein the belt is stretched and entrained around the heating roller to heat the belt; a pressing pad of resin material provided inside of the belt; a rotatable pressing member contacting an outer peripheral surface of the belt and pressing against the pad through the belt to form a nip configured to nip and feed the sheet; a supporting metal stay supporting the pad and including a planar bottom surface faced to the pad; and projected portions integrally molded with the pad and provided along a widthwise direction of the pad, the projected portions projecting and contacting to the bottom surface such that the pad is supported by the stay. A contact area between the projected portions and the bottom surface is not less than 5% and not more than 40% of the area of the bottom surface.

8. 发明申请

US20160098002A1 IMAGE HEATING APPARATUS 有权
标题翻译：图像加热装置
公开(公告)号：US20160098002A1
公开(公告)日：2016-04-07
申请号：US14875498
申请日：2015-10-05
申请人： CANON KABUSHIKI KAISHA
发明人： Ryo Yashiro , Hidekazu Maruta , Masayuki Tamaki , Ryo Suzuki , Mitsuru Hasegawa , Rikiya Takemasa , Koichi Kakubari , Shigeru Hirano
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/0129 , G03G2215/2035
摘要： 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.
摘要翻译：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。

9. 发明授权

US11300904B2 Fixing apparatus 有权
公开(公告)号：US11300904B2
公开(公告)日：2022-04-12
申请号：US17330619
申请日：2021-05-26
申请人： Canon Kabushiki Kaisha
发明人： Hiroki Kawai , Mitsuru Hasegawa , Ayano Ogata , Yasuharu Toratani
IPC分类号： G03G15/20
摘要： A fixing apparatus includes a heating roller including a plurality of halogen heaters whose number is three or more and a driving-force transmission member disposed on one end portion of the heating roller and configured to transmit rotational force that rotates the heating roller. The plurality of halogen heaters whose number is three or more includes at least one asymmetric halogen heater in which an amount of heat generated from one end side on which the driving-force transmission member is provided is larger than an amount of heat generated from another end side, and in which heat generation distribution is asymmetric with respect to a center of a heat generating portion in a longitudinal direction, and at least one symmetric halogen heater in which heat generation distribution is symmetric with respect to a center of a heat generating portion in a longitudinal direction, and the number of symmetric halogen heaters is larger than the number of asymmetric halogen heaters.

10. 发明授权

US11269272B2 Fixing device including an endless belt for fixing a toner image on a recording material 有权
公开(公告)号：US11269272B2
公开(公告)日：2022-03-08
申请号：US17094077
申请日：2020-11-10
申请人： Canon Kabushiki Kaisha
发明人： Hidekazu Tatezawa , Youichi Chikugo , Rikiya Takemasa , Kenichi Tanaka , Yutaro Tsuno , Mitsuru Hasegawa , Suguru Takeuchi , Hiroki Kawai , Yasuharu Toratani , Ayano Ogata
IPC分类号： G03G15/20
摘要： A fixing device includes a rotatable fixing belt, a pad, a rotatable pressing member, a pressing member driving source, an auxiliary driving roller, and a transmission mechanism for transmitting a driving force from the pressing member driving source to the auxiliary driving roller, wherein a peripheral speed of the auxiliary driving roller is faster than a peripheral speed of the pressing member, and a steering roller provided so as to stretch the fixing belt at the inner surface of the fixing belt in a position downstream of the auxiliary driving roller and upstream the pad with respect to a rotational direction of the fixing belt. The steering roller adjusts a position of the fixing belt with respect to a widthwise direction of the fixing belt by inclining the fixing belt so as to be positioned within a predetermined range.

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