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11.发明授权Fixing apparatus that controls power-on and power-off of an induction current generator and image forming apparatus having the same 有权控制感应电流发生器和具有该感应电流发生器的图像形成装置的上电和断电的固定装置公开(公告)号：US09501004B2
公开(公告)日：2016-11-22
申请号：US14559772
申请日：2014-12-03
发明人： Kazuhiko Kikuchi
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2053
摘要： A fixing apparatus includes a fixing belt to fix an unfixed image on a sheet, an induction current generator configured to generate in the fixing belt an induction current that causes heating thereof, a shutdown unit disposed near a surface of the fixing belt and configured to cause shutdown of the fixing apparatus when a temperature of the shutdown unit reaches a first predetermined temperature, a temperature detecting unit disposed near the surface of the fixing belt and configured to detect a temperature at a location of the temperature detecting unit, and a control unit configured to turn off the induction current generator when the detected temperature reaches a second predetermined temperature that is smaller than the first predetermined temperature.
摘要翻译： 定影装置包括：定影带，用于将未定影图像固定在纸张上;感应电流发生器，其被配置为在所述定影带中产生引起其加热的感应电流;关闭单元，设置在所述定影带的表面附近， 当关闭单元的温度达到第一预定温度时定影设备关闭;温度检测单元，设置在定影带的表面附近，并且被配置为检测温度检测单元的位置处的温度;以及控制单元， 当检测到的温度达到小于第一预定温度的第二预定温度时，关闭感应电流发生器。
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公开(公告)号：US09389558B2
公开(公告)日：2016-07-12
申请号：US14798699
申请日：2015-07-14
发明人： Kazuhiko Kikuchi
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2017 , G03G15/2042 , G03G2215/2035
摘要： A fixing device includes an endless heat generating section including a conductive layer, an induction-current generating section configured to generate an induction current in the conductive layer, a temperature-sensitive magnetic body present in a position opposed to the induction-current generating section via the heat generating section, and a magnetic plate present in a position opposed to the heat generating section via the temperature-sensitive magnetic body.
摘要翻译： 定影装置包括具有导电层的环形发热部，感应电流产生部，被配置为在导电层中产生感应电流;感应磁体，位于与感应电流产生部相对的位置， 所述发热部和与所述发热部相对的位置经由所述感温磁体存在的磁性板。
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公开(公告)号：US20140126939A1
公开(公告)日：2014-05-08
申请号：US14151293
申请日：2014-01-09
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2042 , G03G2215/2032
摘要： A fixing apparatus according to an embodiment includes: a first roller; a second roller that forms a nip between the second roller and the first roller and presses a sheet passing through the nip against the first roller; a heater that heats at least one of the first roller and the second roller, a heating range of the heater being greater than a maximum printing width of a predetermined maximum sheet width, and a heat-uniformizing member that distributes heat of the heater along a longitudinal direction thereof, an effective length of the heat-uniformizing member in the longitudinal direction being the same as, or greater than, the predetermined maximum sheet width.
摘要翻译： 根据实施例的定影装置包括：第一辊; 第二辊，其在所述第二辊和所述第一辊之间形成辊隙，并将通过所述辊隙的片材压靠在所述第一辊上; 加热器，其加热第一辊和第二辊中的至少一个，加热器的加热范围大于预定最大片材宽度的最大印刷宽度;以及热量均匀化部件，其沿着 热均匀化构件在长度方向上的有效长度与预定的最大片材宽度相同或更大。
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公开(公告)号：US11675294B2
公开(公告)日：2023-06-13
申请号：US16984488
申请日：2020-08-04
发明人： Chie Miyauchi , Osamu Takagi , Kazuhiko Kikuchi
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2021 , G03G15/2053 , G03G15/2042
摘要： A heating device according to an embodiment generally includes heat generating parts and temperature sensors. The heat generating parts are divided into a plurality of blocks, so that the plurality of heat generating parts are arranged with a gap therebetween on a substrate in each block. With a temperature detection region provided in each block, the temperature sensors are provided corresponding to the heat generating parts with the gaps being avoided. The temperatures of the heat generating parts are detected by the temperature sensors that are less in number than the plurality of heat generating parts.
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15.发明授权公开(公告)号：US11493858B2
公开(公告)日：2022-11-08
申请号：US17393440
申请日：2021-08-04
发明人： Ken Iguchi , Kazuhiko Kikuchi , Tadashi Sugiyama , Tokihiko Ise
摘要： An image forming apparatus of an embodiment includes an image forming unit, a waste toner collection container, a paddle motor, and a controller. The controller acquires a replenishment amount for each toner cartridge, when the image forming component is replenished with the toner from the plurality of toner cartridges, sets a coefficient for each replenishment amount of the toner cartridges, at least one of each set coefficient is different from the others, each of the replenishment amount is corrected by each coefficient, and drives the paddle motor according to a cumulative amount of each corrected replenishment amount.
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公开(公告)号：US11334007B2
公开(公告)日：2022-05-17
申请号：US17379870
申请日：2021-07-19
发明人： Kazuhiko Kikuchi , Osamu Takagi , Chie Miyauchi
摘要： An image forming apparatus includes a transfer unit for transferring a toner image onto a sheet, a fixing device for fixing the image, the fixing device including a belt, a pressure element for pressing against the belt, a heating member on the belt including a heat generating element and electrodes on both sides of the heat element in a sheet conveyance direction and connected to the heat element, and an adjustment mechanism for moving one of the heating member and the pressure element in a manner to move the one closer to or away from the other, and a controller for controlling the adjustment mechanism so that a distance between the heating member and the pressure element becomes a first distance during a fixing process and a second distance larger than the first distance during temperature raising of the heating member, which is conducted before the fixing process.
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公开(公告)号：US11281138B2
公开(公告)日：2022-03-22
申请号：US17100303
申请日：2020-11-20
发明人： Kazuhiko Kikuchi
IPC分类号： G03G15/20
摘要： A heating apparatus includes a cylindrical film and a pressing element that rotates with the cylindrical film and forms a nip with the cylindrical film. A medium is conveyed through the nip from an upstream side to a downstream side. The heating apparatus further includes a guide member arranged inside the cylindrical film and including a first end portion that contacts the cylindrical film at a location that is downstream of an upstream end of the nip, and a substrate arranged inside the cylindrical film and on which a heating element is disposed. An upstream end of the substrate is located downstream of the first end portion of the guide member.
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公开(公告)号：US11106164B2
公开(公告)日：2021-08-31
申请号：US16880935
申请日：2020-05-21
发明人： Kazuhiko Kikuchi , Sasuke Endo , Masaya Tanaka , Ryota Saeki , Kiyotaka Murakami , Kousei Miyashita , Ryosuke Kojima , Yohei Doi , Yuki Kawashima , Eiji Shinohara
IPC分类号： G03G15/20
摘要： A heating device includes a cylindrical film configured to be rotated about an axis, a heater including a substrate that extends along a longitudinal direction parallel to the axis, and a heater element on the substrate and facing an inner surface of the cylindrical film. A heat conductor extends along the longitudinal direction and has first and second surfaces. A first portion of the heat conductor contacts the substrate and a second portion of the heat conductor has a groove in the first surface. A temperature sensing element is disposed at a position on the second surface at a position opposite the groove.
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公开(公告)号：US10983462B2
公开(公告)日：2021-04-20
申请号：US16901408
申请日：2020-06-15
发明人： Kazuhiko Kikuchi
IPC分类号： G03G15/20
摘要： A fixing device includes a belt, a roller, a heater, a reflector, and a fixed support against which the roller presses the belt. The belt is rotatable in a rotational direction. The roller is positioned to be in contact with an outer peripheral surface of the belt so as to form a nip between the roller and the belt. The heater is disposed within an inner circumference of the belt. The reflector includes a first portion. The first portion is in contact with the belt at a first region downstream with respect to the nip in the rotational direction. The reflector covers the fixed support. A plurality of gaps are formed between the reflector and the fixed support so as to suppress heat conduction from the reflector to the fixed support.
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公开(公告)号：US10775722B2
公开(公告)日：2020-09-15
申请号：US16857183
申请日：2020-04-24
发明人： Kazuhiko Kikuchi , Osamu Takagi , Chie Miyauchi
摘要： A fixing device according to an embodiment includes an endless belt, a pressure element, a heating member, an adjustment mechanism, and a controller. The pressure element conveys and presses a sheet to the endless belt. The heating member is on the inner side of the belt and has a heat generating element for heating the belt. The adjustment mechanism moves the heating member or the pressure element to adjust the nip width between the heating member and the pressure element. The controller controls the adjustment mechanism so that A>B≥N is satisfied, where A is the nip width during a fixing process in which a colored material is fixed to the sheet, B is the nip width during a heating process conducted before the fixing process, and N is the length of the heat generating element in the sheet conveyance direction.
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