公开(公告)号：US09651905B2

公开(公告)日：2017-05-16

申请号：US15190341

申请日：2016-06-23

申请人： Ippei Fujimoto ,  Kazuhito Kishi ,  Takashi Seto ,  Takayuki Seki ,  Kazunari Sawada ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Hiromasa Takagi ,  Takamasa Hase ,  Yasuhiko Ogino ,  Shohta Kobashigawa

发明人： Ippei Fujimoto ,  Kazuhito Kishi ,  Takashi Seto ,  Takayuki Seki ,  Kazunari Sawada ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Hiromasa Takagi ,  Takamasa Hase ,  Yasuhiko Ogino ,  Shohta Kobashigawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator and a heater disposed inside the fixing rotator to heat the fixing rotator with radiant heat. A pressure rotator presses against the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. A reflector is disposed opposite the heater to reflect the radiant heat radiated from the heater to the fixing rotator. The reflector includes a first parallel plane, a second parallel plane, and a third tilt plane. The second parallel plane is parallel to the first parallel plane and stepped with respect to the first parallel plane. The second parallel plane is disposed closer to the fixing nip and the heater than the first parallel plane. The third tilt plane bridges the first parallel plane and the second parallel plane and is disposed opposite the heater.

公开(公告)号：US20170102652A1

公开(公告)日：2017-04-13

申请号：US15384838

申请日：2016-12-20

申请人： Takahiro IMADA ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Yuji Arai ,  Naoki Iwaya ,  Tetsuo Tokuda ,  Hiromasa Takagi ,  Yoshiki Yamaguchi ,  Ippei Fujimoto ,  Takuya Seshita ,  Yutaka Ikebuchi ,  Arinobu Yoshiura ,  Toshihiko Shimokawa ,  Hajime Gotoh

发明人： Takahiro IMADA ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Yuji Arai ,  Naoki Iwaya ,  Tetsuo Tokuda ,  Hiromasa Takagi ,  Yoshiki Yamaguchi ,  Ippei Fujimoto ,  Takuya Seshita ,  Yutaka Ikebuchi ,  Arinobu Yoshiura ,  Toshihiko Shimokawa ,  Hajime Gotoh

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2064 ,  G03G2215/2035

摘要： According to an embodiments, a fixing device includes: an endless fixing member; a heating unit that is provided inside an inner peripheral surface of the fixing member; and a nip forming unit that comes into press-contact with a rotationally driven pressing member with the fixing member interposed therebetween to form a nip. The nip forming unit has a shape in which a center of a contact surface protrudes toward the pressing member compared to both ends. The nip forming unit has a protruding amount at a center toward the pressing member compared to both ends of the nip forming unit in no-load state is set to be less than a bent amount of the nip forming unit when the nip forming unit comes into press-contact with the pressing member with the fixing member interposed therebetween.

公开(公告)号：US09618888B2

公开(公告)日：2017-04-11

申请号：US15040691

申请日：2016-02-10

申请人： Keitaro Shoji ,  Kenji Ishii ,  Hiromasa Takagi ,  Takayuki Seki

发明人： Keitaro Shoji ,  Kenji Ishii ,  Hiromasa Takagi ,  Takayuki Seki

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator rotatable in a predetermined direction of rotation and an opposed rotator disposed opposite the fixing rotator to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed. A heater is disposed opposite the fixing rotator to heat the fixing rotator. A nip formation pad is disposed opposite an inner circumferential surface of the fixing rotator. The nip formation pad includes a base, a first thermal conductor sandwiched between the base and the fixing rotator and having a first thermal conductivity greater than a thermal conductivity of the base, and a bulge projecting from the first thermal conductor toward the opposed rotator at a downstream end of the first thermal conductor in a recording medium conveyance direction.

公开(公告)号：US09618886B2

公开(公告)日：2017-04-11

申请号：US14979686

申请日：2015-12-28

申请人： Takashi Seto ,  Kenji Ishii ,  Kazuhito Kishi ,  Ippei Fujimoto ,  Takayuki Seki ,  Susumu Matsusaka ,  Yasuhiko Ogino ,  Shohta Kobashigawa ,  Hiromasa Takagi

发明人： Takashi Seto ,  Kenji Ishii ,  Kazuhito Kishi ,  Ippei Fujimoto ,  Takayuki Seki ,  Susumu Matsusaka ,  Yasuhiko Ogino ,  Shohta Kobashigawa ,  Hiromasa Takagi

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G2215/0132 ,  G03G2215/2035

摘要： A nip formation assembly disposed opposite an opposed rotator via an endless belt includes a nip formation pad to press against the opposed rotator via the endless belt to form a fixing nip between the endless belt and the opposed rotator, through which a recording medium bearing a toner image is conveyed. A fixing heater is disposed opposite at least a center span of the endless belt in an axial direction thereof where the recording medium is conveyed. The fixing heater heats the endless belt. A lateral end heater is mounted on the nip formation pad and disposed opposite a lateral end span of an inner circumferential surface of the endless belt in the axial direction thereof. The lateral end heater heats the endless belt.

公开(公告)号：US09612556B2

公开(公告)日：2017-04-04

申请号：US15052450

申请日：2016-02-24

申请人： Yasuhiko Ogino ,  Kenji Ishii ,  Takashi Seto ,  Ippei Fujimoto ,  Kazuhito Kishi ,  Kazunari Sawada ,  Hiroshi Yoshinaga ,  Hiromasa Takagi ,  Takamasa Hase ,  Hiroshi Seo ,  Susumu Matsusaka ,  Shohta Kobashigawa

发明人： Yasuhiko Ogino ,  Kenji Ishii ,  Takashi Seto ,  Ippei Fujimoto ,  Kazuhito Kishi ,  Kazunari Sawada ,  Hiroshi Yoshinaga ,  Hiromasa Takagi ,  Takamasa Hase ,  Hiroshi Seo ,  Susumu Matsusaka ,  Shohta Kobashigawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2064 ,  G03G2215/2035

摘要： A fixing device includes a heater to generate heat and a fixing rotator to rotate while contacting the heater. A pressure rotator presses against the heater via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium bearing a toner image is conveyed. The heater includes an insulative substrate and a resistive heat generation layer mounted on the substrate. The resistive heat generation layer is disposed upstream from a center of the fixing nip in a recording medium conveyance direction.

公开(公告)号：US09612555B2

公开(公告)日：2017-04-04

申请号：US15010012

申请日：2016-01-29

申请人： Hiroshi Yoshinaga ,  Kenji Ishii ,  Kazuhito Kishi ,  Takashi Seto ,  Takayuki Seki ,  Ippei Fujimoto ,  Kazunari Sawada ,  Susumu Matsusaka ,  Yasuhiko Ogino ,  Shohta Kobashigawa

发明人： Hiroshi Yoshinaga ,  Kenji Ishii ,  Kazuhito Kishi ,  Takashi Seto ,  Takayuki Seki ,  Ippei Fujimoto ,  Kazunari Sawada ,  Susumu Matsusaka ,  Yasuhiko Ogino ,  Shohta Kobashigawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G15/205 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator and an opposed rotator pressed against the fixing rotator to form a fixing nip therebetween. A primary heater is disposed opposite the fixing rotator in a circumferential span of the fixing rotator other than the fixing nip in a circumferential direction of the fixing rotator to heat the fixing rotator. A heat shield is interposed between the primary heater and the fixing rotator and disposed outboard from at least a decreased size recording medium conveyance span of the fixing rotator spanning in an axial direction of the fixing rotator where a recording medium having a decreased size in the axial direction of the fixing rotator is conveyed. The heat shield shields the fixing rotator from the primary heater. A secondary heater is mounted on the heat shield to heat the fixing rotator.

公开(公告)号：US09529309B2

公开(公告)日：2016-12-27

申请号：US14531313

申请日：2014-11-03

申请人： Kenji Ishii ,  Hiromasa Takagi ,  Takayuki Seki ,  Keitaro Shoji

发明人： Kenji Ishii ,  Hiromasa Takagi ,  Takayuki Seki ,  Keitaro Shoji

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G2215/2025 ,  G03G2215/2029 ,  G03G2215/2032 ,  G03G2215/2035 ,  G03G2215/2038

摘要： A fixing device includes a fixing rotator, a nip formation pad disposed opposite an inner circumferential surface of the fixing rotator, and a pressure rotator pressed against the nip formation pad via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. A support is disposed opposite the pressure rotator via the nip formation pad to support the nip formation pad against pressure from the pressure rotator. The nip formation pad conducts heat in a thickness direction thereof perpendicular to an axial direction of the fixing rotator and a recording medium conveyance direction. The nip formation pad includes a multi-conductivity layer having a thermal conductivity varying in the axial direction of the fixing rotator and a support side layer contacting the support and having a thermal conductivity greater than a thermal conductivity of the support.

摘要翻译： 定影装置包括固定旋转体，与定影旋转体的内周面相对配置的压区形成垫，以及经由固定旋转体压靠在压区形成垫上的压力旋转体，在固定旋转体和压力旋转体之间形成定影辊隙 传送记录媒体。 支撑件通过压区形成垫与压力旋转体相对设置，以支撑压区形成垫抵抗来自压力旋转器的压力。 压区形成垫沿与固定旋转体的轴向垂直的厚度方向和记录介质输送方向传导热量。 压区形成垫包括具有在固定旋转体的轴向上变化的热导率的多导电层和与支撑体接触并具有大于载体的热导率的导热性的支撑侧层。

公开(公告)号：US09454114B2

公开(公告)日：2016-09-27

申请号：US14682509

申请日：2015-04-09

申请人： Takamasa Hase ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Tadashi Ogawa ,  Takeshi Uchitani ,  Hiromasa Takagi ,  Naoki Iwaya ,  Teppei Kawata ,  Takuya Seshita ,  Arinobu Yoshiura ,  Takahiro Imada ,  Hajime Gotoh ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa ,  Kensuke Yamaji ,  Akira Suzuki

发明人： Takamasa Hase ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Tadashi Ogawa ,  Takeshi Uchitani ,  Hiromasa Takagi ,  Naoki Iwaya ,  Teppei Kawata ,  Takuya Seshita ,  Arinobu Yoshiura ,  Takahiro Imada ,  Hajime Gotoh ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa ,  Kensuke Yamaji ,  Akira Suzuki

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G15/2039 ,  G03G2215/2035

摘要： A fixing device including a fixing member, an opposing member, a plurality of heat sources, and a voltage detector. The opposing member is disposed opposite the fixing member to contact the fixing member to form a nip portion at which an unfixed image on a recording medium is fixed. The plurality of heat sources heats the fixing member. The voltage detector detects an applied voltage of at least one of the plurality of heat sources. Upon detection of the applied voltage of the heat sources by the voltage detector, a voltage is applied to at least one of the heat sources.

公开(公告)号：US09405270B2

公开(公告)日：2016-08-02

申请号：US13752679

申请日：2013-01-29

申请人： Tadashi Ogawa ,  Kenji Ishii ,  Teppei Kawata ,  Arinobu Yoshiura ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Yuji Arai ,  Yoshiki Yamaguchi ,  Hiromasa Takagi ,  Naoki Iwaya ,  Takahiro Imada ,  Hajime Gotoh ,  Akira Suzuki ,  Masaaki Yoshikawa

发明人： Tadashi Ogawa ,  Kenji Ishii ,  Teppei Kawata ,  Arinobu Yoshiura ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Yuji Arai ,  Yoshiki Yamaguchi ,  Hiromasa Takagi ,  Naoki Iwaya ,  Takahiro Imada ,  Hajime Gotoh ,  Akira Suzuki ,  Masaaki Yoshikawa

IPC分类号： G03G21/16 ,  G03G15/20

CPC分类号： G03G21/1685 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device capable of incorporating in an image forming apparatus includes a belt unit including a rotatable elastic endless belt having a sleeve shape without a driving shaft and a nip forming member disposed contactable against an inner surface of the endless belt, and a pressing member to form a nip contact portion through which a recording medium passes by pressing against the nip forming member via the endless belt. The endless belt is configured to be removable from the fixing device without contacting the endless belt.

摘要翻译： 能够结合在图像形成装置中的固定装置包括带单元，其包括具有套筒形状的旋转弹性环形带，而不具有驱动轴和可与环形带的内表面接触的夹持形成构件，以及按压构件 形成压区接触部分，记录介质通过环状带压靠在辊隙形成部件上而通过。 环形带被构造成可以从固定装置移除而不接触环形带。

公开(公告)号：US09348284B2

公开(公告)日：2016-05-24

申请号：US14610121

申请日：2015-01-30

申请人： Takeshi Watanabe ,  Kenji Ishii ,  Yuji Karikusa ,  Junji Shirakawa

发明人： Takeshi Watanabe ,  Kenji Ishii ,  Yuji Karikusa ,  Junji Shirakawa

IPC分类号： G03G15/20 ,  B65H1/04 ,  B65H1/28 ,  B65H5/06 ,  B65H5/26 ,  B65H7/20 ,  B65H29/58 ,  B65H5/02

CPC分类号： G03G15/2028 ,  B65H1/04 ,  B65H1/28 ,  B65H5/023 ,  B65H5/068 ,  B65H5/26 ,  B65H7/20 ,  B65H29/58 ,  B65H2301/5144 ,  B65H2402/31 ,  B65H2402/45 ,  B65H2402/542 ,  B65H2404/253 ,  B65H2404/2612 ,  B65H2404/2614 ,  B65H2404/2693 ,  B65H2406/42 ,  B65H2601/11 ,  B65H2801/27 ,  G03G15/6573 ,  G03G21/1638 ,  G03G21/20

摘要： A sheet conveyor, which is incorporated in an image forming apparatus, includes a first conveyor to convey a sheet via a first sheet conveying path and move in a direction intersecting a sheet thickness direction, a second conveyor to convey the sheet via a second sheet conveying path and include a third conveyor and a fourth conveyor bringing either one close to and away from the other via the second sheet conveying path in the sheet thickness direction, a first attaching part provided to the first conveyor to attach the first conveyor to the sheet conveyor, and a state changer to change a state of one of the first attaching part to a movement allowed state and the second conveyor to a sheet releasing state in conjunction with a releasing action of the other of the first attaching part and the second conveyor.

摘要翻译： 装在图像形成装置中的片材输送机包括：第一输送机，用于经由第一片材输送路径输送片材并沿与板厚方向相交的方向移动;第二输送机，经由第二片材输送 并且包括第三传送器和第四传送器，其通过第二片材输送路径在片材厚度方向上彼此接近并远离另一个;第一连接部，设置在第一传送器上以将第一传送器附接到片材传送器 以及状态变换器，其结合第一安装部和第二传送带中的另一个的释放动作，将第一安装部中的一个状态改变为移动允许状态，将第二传送器改变为片材释放状态。