公开(公告)号：US20210214178A1

公开(公告)日：2021-07-15

申请号：US17148569

申请日：2021-01-14

申请人： Takashi SETO ,  Takamasa HASE

发明人： Takashi SETO ,  Takamasa HASE

IPC分类号： B65H9/16 ,  B41J13/00 ,  B41J13/02 ,  B41J13/076

摘要： A conveying device includes a pair of rotary bodies and a movable member. The pair or rotary bodies includes a first rotary body disposed in a first region, and a second rotary body disposed in a second region and facing the first rotary body across a sheet conveyance passage through which a sheet applied with liquid is conveyed. The movable member is disposed upstream from the first rotary body in a sheet conveyance direction. The movable member is configured to move between the first region and the second region with respect to the sheet conveyance passage. The movable member is configured to move to the second region in a middle of conveyance of the sheet between the first rotary body and the second rotary body.

公开(公告)号：US10712695B2

公开(公告)日：2020-07-14

申请号：US16519254

申请日：2019-07-23

申请人： Daisuke Inoue ,  Tomoya Adachi ,  Yuusuke Furuichi ,  Yukimichi Someya ,  Masahiro Samei ,  Takamasa Hase

发明人： Daisuke Inoue ,  Tomoya Adachi ,  Yuusuke Furuichi ,  Yukimichi Someya ,  Masahiro Samei ,  Takamasa Hase

IPC分类号： G03G15/20 ,  G05D23/24 ,  G03G15/00

摘要： An image forming apparatus includes a heating device including a heat generator and a resistance value identifier, a body, a resistance value acquisition unit, a detector to detect detachment and attachment of the heating device from and to the body, and an electric power controller. The resistance value identifier corresponds to a resistance value of the heat generator. The resistance value acquisition unit acquires the resistance value from the resistance value identifier. The electric power controller causes the resistance value acquisition unit to acquire the resistance value when the detector detects detachment and attachment of the heating device. The electric power controller changes a lighting duty of the heat generator when the acquired resistance value of the heat generator is different from the resistance value before the detector detects detachment and attachment of the heating device.

公开(公告)号：US20200033775A1

公开(公告)日：2020-01-30

申请号：US16519254

申请日：2019-07-23

申请人： DAISUKE INOUE ,  TOMOYA ADACHI ,  YUUSUKE FURUICHI ,  YUKIMICHI SOMEYA ,  MASAHIRO SAMEI ,  TAKAMASA HASE

发明人： DAISUKE INOUE ,  TOMOYA ADACHI ,  YUUSUKE FURUICHI ,  YUKIMICHI SOMEYA ,  MASAHIRO SAMEI ,  TAKAMASA HASE

IPC分类号： G03G15/20 ,  G05D23/24 ,  G03G15/00

摘要： An image forming apparatus includes a heating device including a heat generator and a resistance value identifier, a body, a resistance value acquisition unit, a detector to detect detachment and attachment of the heating device from and to the body, and an electric power controller. The resistance value identifier corresponds to a resistance value of the heat generator. The resistance value acquisition unit acquires the resistance value from the resistance value identifier. The electric power controller causes the resistance value acquisition unit to acquire the resistance value when the detector detects detachment and attachment of the heating device. The electric power controller changes a lighting duty of the heat generator when the acquired resistance value of the heat generator is different from the resistance value before the detector detects detachment and attachment of the heating device.

公开(公告)号：US10539912B1

公开(公告)日：2020-01-21

申请号：US16391959

申请日：2019-04-23

申请人： Takamasa Hase ,  Tomoya Adachi ,  Yuusuke Furuichi ,  Yukimichi Someya ,  Masahiro Samei ,  Daisuke Inoue

发明人： Takamasa Hase ,  Tomoya Adachi ,  Yuusuke Furuichi ,  Yukimichi Someya ,  Masahiro Samei ,  Daisuke Inoue

IPC分类号： G03G15/20 ,  G03G15/00

摘要： An image forming apparatus includes a power controller that starts an examination mode by an external operation. The examination mode detects a temperature-resistance property of a resistive heat generator. The power controller supplies power at a predetermined power duty cycle to the resistive heat generator. The power controller obtains the power supplied to the resistive heat generator and a change in a temperature of the resistive heat generator, that is detected by a temperature detector, while the power controller supplies the power at the predetermined power duty cycle to the resistive heat generator. The power controller calculates the temperature-resistance property of the resistive heat generator based on the power and the change in the temperature that are obtained. The power controller adjusts a power duty cycle at which the power is supplied to the resistive heat generator based on the temperature-resistance property.

公开(公告)号：US10001734B2

公开(公告)日：2018-06-19

申请号：US15377927

申请日：2016-12-13

申请人： Hiroshi Seo ,  Yuusuke Furuichi ,  Takashi Fujita ,  Daisuke Inoue ,  Takamasa Hase

发明人： Hiroshi Seo ,  Yuusuke Furuichi ,  Takashi Fujita ,  Daisuke Inoue ,  Takamasa Hase

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A fixing device includes an endless, rotatable fixing belt, a pressure rotator, a nip formation pad, a support, and a vibration repressor. The pressure rotator presses an outer surface of the fixing belt. The nip formation pad is disposed at an inner side of the fixing belt, to abut on the pressure rotator with the fixing belt interposed between the nip formation pad and the pressure rotator to form a fixing nip. The support is disposed at the inner side of the fixing belt, to support the nip formation pad. The vibration repressor is disposed between the nip formation pad and the support, to repress vibration of the nip formation pad.

公开(公告)号：US09927748B2

公开(公告)日：2018-03-27

申请号：US13751648

申请日：2013-01-28

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

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

IPC分类号： G03G15/20

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

摘要： A fixing device includes: a rotatable endless fixing belt; a nip forming member arranged inside the fixing belt; a facing rotating body that abuts the nip forming member via the fixing belt to form a nip portion with the fixing belt; a heat source that directly heats up the fixing belt at a portion other than the nip portion; and a supporting member that supports the nip forming member. The fixing device conveys a recording medium carrying an unfixed image to the nip portion to fix the unfixed image to the recording medium, and the supporting member includes a rising portion extending in an abutting direction of the facing rotating body against the fixing belt and having a tip close to an inner circumferential surface of the fixing belt, and is set to have a section modulus of 200 mm3 or higher.

公开(公告)号：US09829840B2

公开(公告)日：2017-11-28

申请号：US15011886

申请日：2016-02-01

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

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

IPC分类号： G03G15/20

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

摘要： A fixing device includes a nip formation pad that presses against a pressure rotator via an endless belt to form a fixing nip between the belt and the pressure rotator, through which a recording medium bearing a toner image is conveyed. A fixing heater is disposed opposite at least a center span of a conveyance span of the belt in an axial direction thereof where the recording medium is conveyed to heat the belt. A first lateral end heater and a second lateral end heater are mounted on the nip formation pad and disposed opposite a first lateral end span and a second lateral end span of an inner circumferential surface of the belt in the axial direction thereof, respectively, to heat the belt. The second lateral end heater is electrically connected in series to the first lateral end heater.

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：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：US09568868B2

公开(公告)日：2017-02-14

申请号：US13759443

申请日：2013-02-05

申请人： Shinichi Namekata ,  Takeshi Uchitani ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Kazuya Saito ,  Ryota Yamashina ,  Ippei Fujimoto ,  Hiroshi Seo ,  Takumi Waida

发明人： Shinichi Namekata ,  Takeshi Uchitani ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Kazuya Saito ,  Ryota Yamashina ,  Ippei Fujimoto ,  Hiroshi Seo ,  Takumi Waida

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2035

摘要： Heat-equalizing rotation of a fixing member and a pressing member for equalizing the distribution of the temperature of a surface of the fixing member in a width direction is performed after a recording medium having a size less than or equal to a predetermined size in the width direction passes a nip portion and before a recording medium having a size greater than the predetermined size in the width direction passes the nip portion. Further, a termination condition of the heat-equalizing rotation is selected from among a plurality of different kinds of termination conditions, based on image formation related information related to next image formation performed after the heat-equalizing rotation.

摘要翻译： 在具有尺寸小于或等于预定尺寸的记录介质的宽度方向上执行固定构件和用于均衡固定构件的表面在宽度方向上的温度分布的按压构件的均热旋转 方向通过夹持部分，并且在宽度方向上具有大于预定尺寸的尺寸的记录介质通过夹持部分之前。 此外，基于与在热均衡旋转之后进行的下一次图像形成相关的图像形成相关信息，从多个不同种类的终止条件中选择热均衡旋转的终止条件。