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公开(公告)号：US09377733B2
公开(公告)日：2016-06-28
申请号：US14408524
申请日：2013-06-13
发明人： Yuki Nishizawa , Hiroshi Mano , Minoru Hayasaki , Aoji Isono , Akira Kuroda , Toshio Miyamoto , Michio Uchida , Seiji Uchiyama
CPC分类号： G03G15/2053 , G03G15/2017 , G03G15/2042 , G03G15/206 , G03G2215/2035 , H05B6/14 , H05B6/365
摘要： A fixing device configured to fix an image on a recording material, includes: a rotary member including an electroconductive layer; a coil which has a spiral shaped portion and is disposed in the inside of the rotary member; and a core disposed in the spiral shaped portion; with magnetic resistance of the core being, with an area from one end to the other end of the maximum passage region of the image on the recording material regarding the generatrix direction, equal to or smaller than 30% of combined magnetic resistance made up of magnetic resistance of the electroconductive layer and magnetic resistance of a region between the electroconductive layer and the core.
摘要翻译： 一种构造成将图像固定在记录材料上的定影装置，包括：包括导电层的旋转构件; 线圈，其具有螺旋形部分并且设置在旋转构件的内部; 和设置在所述螺旋状部分中的芯体; 其磁芯的磁阻为，在记录材料上的图像的母线方向上的图像的最大通过区域的一端到另一端的面积等于或小于由磁性组成的组合磁阻的30％ 导电层的电阻和导电层与芯之间的区域的磁阻。
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2.发明授权Image forming apparatus having a second resistor portion with a higher electrical resistance than a first resistor portion 有权图像形成装置具有比第一电阻器部分具有更高电阻的第二电阻部分公开(公告)号：US08958709B2
公开(公告)日：2015-02-17
申请号：US13676960
申请日：2012-11-14
发明人： Masahiro Suzuki , Masaru Shimura , Shinji Katagiri , Tatsuya Kinukawa , Shigeru Hoashi , Akinori Takayama , Takeo Kawanami , Michio Uchida
CPC分类号： G03G15/1605 , G03G15/0131 , G03G15/1615 , G03G15/168
摘要： In an image forming apparatus, one of a plurality of support members supporting an intermediate transfer belt is a guide member configured to regulate the rotational direction of the intermediate transfer belt while being held in sliding contact with the intermediate transfer belt at a position opposite the secondary transfer member across the intermediate transfer belt. This guide member is equipped with a first resistor portion in sliding contact with the intermediate transfer belt and a second resistor portion of a higher electrical resistance than the first resistor portion, with the second resistor portion provided upstream of the first resistor portion in the rotational direction of the intermediate transfer belt.
摘要翻译： 在图像形成装置中，支撑中间转印带的多个支撑构件中的一个支撑构件是引导构件，其构造成调节中间转印带的旋转方向，同时在与中间转印带相对的位置处与中间转印带保持滑动接触 转移构件穿过中间转印带。 该引导构件配备有与中间转印带滑动接触的第一电阻器部分和比第一电阻器部分高的电阻的第二电阻器部分，其中第二电阻器部分沿旋转方向设置在第一电阻器部分的上游 的中间转印带。
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公开(公告)号：US11733629B2
公开(公告)日：2023-08-22
申请号：US17829076
申请日：2022-05-31
发明人： Tetsuya Sano , Michio Uchida
IPC分类号： G03G15/20
CPC分类号： G03G15/2057 , G03G15/2028
摘要： A fixing device to fix a toner image formed on a recording medium to the recording medium includes a rotating member, a guide member, a holding member, and a roller. The roller contacts with an outer surface of the rotating member and forms a fixing nip portion together with the guide member between the rotating member and the roller. The fixing device fixes the recording medium toner image to the recording medium while pinching and conveying the recording medium in the fixing nip portion. The guide member is pivotable relative to the holding member about a pivot point that is a shaft substantially perpendicular to a surface of the fixing nip portion. When the rotating member slides on the guide member, the guide member pivots due to a force received from the rotating member so that alignment of the guide member with respect to the holding member is corrected.
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公开(公告)号：US09405249B2
公开(公告)日：2016-08-02
申请号：US14802159
申请日：2015-07-17
发明人： Masahide Hirai , Munehito Kurata , Shinji Hashiguchi , Shizuma Nishimura , Michio Uchida , Hisahiro Saito
CPC分类号： G03G15/2082 , G03G15/2042 , G03G15/2053 , H05B6/06 , H05B6/145
摘要： A fixing device includes: a rotatable member including an electroconductive layer; a helical coil having a helical axis direction along a generatrix direction of the rotatable member; a magnetic member not forming a loop outside the electroconductive layer; a frequency setting portion for setting a frequency of an AC current caused to flow through the coil; and a temperature detecting portion for detecting a temperature of the rotatable member, including a first temperature detecting member and a second temperature detecting member. The electroconductive layer generates heat through electromagnetic induction heating by magnetic flux resulting from the AC current, and an image is fixed on a recording material by heat of the rotatable member. The frequency setting portion sets the frequency depending on a value of a difference between a detection temperature of the first temperature detecting member and a detection temperature of the second temperature detecting member.
摘要翻译： 定影装置包括：包括导电层的可旋转构件; 具有沿着所述可旋转构件的母线方向的螺旋轴方向的螺旋线圈; 在导电层外不形成环的磁性部件; 频率设定部，其设定使流过所述线圈的交流电流的频率; 以及温度检测部分，用于检测包括第一温度检测部件和第二温度检测部件的可旋转部件的温度。 导电层通过由AC电流产生的磁通量的电磁感应加热产生热量，并且通过可旋转部件的热量将图像固定在记录材料上。 频率设定部根据第一温度检测部件的检测温度与第二温度检测部件的检测温度之差的值来设定频率。
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公开(公告)号：US09323186B2
公开(公告)日：2016-04-26
申请号：US14571662
申请日：2014-12-16
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G2215/2035
摘要： An image forming apparatus for forming an image on a recording material includes: an image forming portion for forming the image on the recording material; a fixing portion, including a cylindrical rotatable member having a heat generating layer, for fixing the image on the recording material by heat of the rotatable member; and a temperature detecting portion for detecting a temperature of the rotatable member. The temperature detecting portion monitors a temperature change amount during one rotation of the rotatable member. The rotatable member is heated by the heat generating layer generating heat by a flow of a current in a circumferential direction of the rotatable member. Depending on the temperature change amount, a notification of an abnormality of the image forming apparatus is generated.
摘要翻译： 用于在记录材料上形成图像的图像形成装置包括：用于在记录材料上形成图像的图像形成部分; 固定部分，包括具有发热层的圆柱形可旋转构件，用于通过所述可旋转构件的热量将所述图像定影在所述记录材料上; 以及用于检测可旋转部件的温度的温度检测部。 温度检测部分在旋转构件的一次旋转期间监测温度变化量。 可旋转构件被发热层加热，该发热层通过在可旋转构件的圆周方向上的电流而产生热量。 根据温度变化量，生成图像形成装置的异常的通知。
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公开(公告)号：US20160026132A1
公开(公告)日：2016-01-28
申请号：US14802159
申请日：2015-07-17
发明人： Masahide Hirai , Munehito Kurata , Shinji Hashiguchi , Shizuma Nishimura , Michio Uchida , Hisahiro Saito
CPC分类号： G03G15/2082 , G03G15/2042 , G03G15/2053 , H05B6/06 , H05B6/145
摘要： A fixing device includes: a rotatable member including an electroconductive layer; a helical coil having a helical axis direction along a generatrix direction of said rotatable member; a magnetic member not forming a loop outside the electroconductive layer; a frequency setting portion for setting a frequency of an AC current caused to flow through said coil; and a temperature detecting portion for detecting a temperature of said rotatable member, including a first temperature detecting member and a second temperature detecting member. The electroconductive layer generates heat through electromagnetic induction heating by magnetic flux resulting from the AC current, and an image is fixed on a recording material by heat of said rotatable member. The frequency setting portion sets the frequency depending on a value of a difference between a detection temperature of said first temperature detecting member and a detection temperature of said second temperature detecting member.
摘要翻译： 定影装置包括：包括导电层的可旋转构件; 具有沿着所述可旋转构件的母线方向的螺旋轴方向的螺旋线圈; 在导电层外不形成环的磁性部件; 频率设定部，其设定使流经所述线圈的交流电流的频率; 以及温度检测部分，用于检测包括第一温度检测部件和第二温度检测部件的所述可旋转部件的温度。 导电层通过由AC电流产生的磁通量的电磁感应加热产生热量，并且通过所述可旋转部件的热将图像固定在记录材料上。 频率设定部根据所述第一温度检测部件的检测温度与所述第二温度检测部件的检测温度之差的值来设定所述频率。
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公开(公告)号：US09213273B2
公开(公告)日：2015-12-15
申请号：US14255982
申请日：2014-04-18
发明人： Kazuhiro Doda , Masaru Shimura , Shigeru Hoashi , Kenji Kanari , Seiji Saito , Takashi Shimada , Takaaki Akamatsu , Michio Uchida , Ken Nakagawa , Takamitsu Soda , Shuichi Tetsuno
CPC分类号： G03G15/1615 , G03G15/1605 , G03G15/1685 , G03G2215/0129
摘要： An image forming apparatus includes: an image bearing member for bearing a toner image; a belt for conveying the toner image; and a transfer device for rubbing the belt, and a surface of the transfer device, which is brought into contact with the belt includes linear concave portions or linear convex portions. The image forming apparatus of the present invention prevents a friction force between the belt and the transfer device rubbing the belt from increasing and brings a transfer member into a stable contact with the belt for conveying the toner image, thereby suppressing increase in drive torque of the belt which rubs the transfer device and suppressing occurrence of image failure.
摘要翻译： 图像形成装置包括：用于承载调色剂图像的图像承载部件; 用于传送调色剂图像的带; 以及用于摩擦带的传送装置，与传送带接触的传送装置的表面包括直线形凹部或线形凸部。 本发明的图像形成装置防止了带和传送装置摩擦带的摩擦力增加，并且使转印构件与用于输送调色剂图像的带保持稳定的接触，从而抑制了传送调色剂图像的驱动转矩的增加 皮带，其摩擦传送装置并抑制图像故障的发生。
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公开(公告)号：US10185256B2
公开(公告)日：2019-01-22
申请号：US15713977
申请日：2017-09-25
发明人： Seiji Inada , Seiji Obata , Shizuma Nishimura , Michio Uchida , Yoji Oya
摘要： An image forming apparatus for forming a toner image on a sheet includes a main assembly, an image forming station provided in the main assembly and configured to form a toner image on the sheet, and a fixing portion provided in the main assembly and configured to fix the toner image formed on the sheet, on the sheet, the fixing portion including a fixing rotatable member and a covering member covering the rotatable member. The image forming apparatus also includes a suction mechanism including a duct connected with an opening provided in the covering member, and a fan configured to suck air inside the covering member through the duct. The air sucked by the suction mechanism is discharged into a space in the main assembly other than a space through which the sheet passes.
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公开(公告)号：US08811876B2
公开(公告)日：2014-08-19
申请号：US13712255
申请日：2012-12-12
发明人： Terutaka Endo , Michio Uchida
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G15/2053
摘要： The image heating apparatus includes an endless belt, a heater placed in contact with an inner surface of the endless belt, a holder made of resin, adapted to hold the heater, and provided with a supporting space to be fitted with the heater, where a through hole is formed in a heater receiving surface of the holder at a bottom area of the supporting space; and a back-up member adapted to form a nip together with the heater to pinch and convey a recording material through the endless belt. In the bottom area, hollow portions recessed from the bottom area are provided at opposite ends in a short direction of the holder, being located at locations in a longitudinal direction of the holder different from a location in which the through hole is formed. Consequently, even if the heater heats up abnormally, heater cracks can be prevented.
摘要翻译： 图像加热装置包括环形带，与环形带的内表面接触的加热器，由树脂制成的保持器，用于保持加热器，并且设置有与加热器配合的支撑空间，其中 通孔形成在支撑空间的底部区域的保持器的加热器接收表面中; 以及支撑构件，其适于与加热器一起形成压区，以通过环形带夹紧和传送记录材料。 在底部区域中，从底部区域凹陷的中空部分设置在保持器的短方向上的相对端，位于保持器的纵向方向上与形成通孔的位置不同的位置处。 因此，即使加热器异常加热，也可以防止加热器裂纹。
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公开(公告)号：US20140219692A1
公开(公告)日：2014-08-07
申请号：US14255982
申请日：2014-04-18
发明人： Kazuhiro Doda , Masaru Shimura , Shigeru Hoashi , Kenji Kanari , Seiji Saito , Takashi Shimada , Takaaki Akamatsu , Michio Uchida , Ken Nakagawa , Takamitsu Soda , Shuuichi Tetsuno
IPC分类号： G03G15/16
CPC分类号： G03G15/1615 , G03G15/1605 , G03G15/1685 , G03G2215/0129
摘要： An image forming apparatus includes: an image bearing member for bearing a toner image; a belt for conveying the toner image; and a transfer device for rubbing the belt, and a surface of the transfer device, which is brought into contact with the belt includes linear concave portions or linear convex portions. The image forming apparatus of the present invention prevents a friction force between the belt and the transfer device rubbing the belt from increasing and brings a transfer member into a stable contact with the belt for conveying the toner image, thereby suppressing increase in drive torque of the belt which rubs the transfer device and suppressing occurrence of image failure.
摘要翻译： 图像形成装置包括：用于承载调色剂图像的图像承载部件; 用于传送调色剂图像的带; 以及用于摩擦带的传送装置，与传送带接触的传送装置的表面包括直线形凹部或线形凸部。 本发明的图像形成装置防止了带和传送装置摩擦带的摩擦力增加，并且使转印构件与用于传送调色剂图像的带保持稳定的接触，从而抑制了传送调色剂图像的驱动转矩的增加 皮带，其摩擦传送装置并抑制图像故障的发生。
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