公开(公告)号：US09851663B2

公开(公告)日：2017-12-26

申请号：US15144055

申请日：2016-05-02

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a primary heater disposed opposite a fixing rotator to heat a circumferential span of the fixing rotator other than a fixing nip formed between the fixing rotator and a pressure rotator and a secondary heater disposed outboard from the primary heater in an axial direction of the fixing rotator to heat the fixing rotator at the fixing nip. The primary heater and the secondary heater heat a bi-heating span of the fixing rotator in the axial direction thereof. The secondary heater heats a mono-heating span of the fixing rotator in the axial direction thereof and generates a decreased amount of heat to be conducted to the bi-heating span of the fixing rotator. The decreased amount of heat is smaller than an increased amount of heat to be conducted to the mono-heating span of the fixing rotator that is heated by the secondary heater only.

公开(公告)号：US09874839B2

公开(公告)日：2018-01-23

申请号：US15178079

申请日：2016-06-09

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2025

摘要： A fixing device includes a fixing rotator rotatable in a predetermined direction of rotation and a nip formation pad disposed inside the fixing rotator. A pressure rotator presses against the nip formation pad via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. A heat generator is disposed inside the fixing rotator to heat the fixing rotator. A reflector is interposed between the heat generator and the nip formation pad. The reflector includes a reflection face to reflect radiant heat radiated from the heat generator. The reflection face includes a reflection portion disposed opposite the heat generator at various angles. A support is provided separately from the nip formation pad and supports the reflector.

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：US20160334742A1

公开(公告)日：2016-11-17

申请号：US15144055

申请日：2016-05-02

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a primary heater disposed opposite a fixing rotator to heat a circumferential span of the fixing rotator other than a fixing nip formed between the fixing rotator and a pressure rotator and a secondary heater disposed outboard from the primary heater in an axial direction of the fixing rotator to heat the fixing rotator at the fixing nip. The primary heater and the secondary heater heat a bi-heating span of the fixing rotator in the axial direction thereof. The secondary heater heats a mono-heating span of the fixing rotator in the axial direction thereof and generates a decreased amount of heat to be conducted to the bi-heating span of the fixing rotator. The decreased amount of heat is smaller than an increased amount of heat to be conducted to the mono-heating span of the fixing rotator that is heated by the secondary heater only.

摘要翻译： 定影装置包括与固定旋转体相对设置的主加热器，用于加热固定旋转器的周向跨度，而不是在固定旋转体和压力旋转体之间形成的定影辊隙和从主加热器的外侧沿轴向方向设置的二次加热器 固定旋转器用于在定影辊隙处加热定影旋转器。 主加热器和二次加热器沿固定转子的轴向加热固定转子的双加热跨度。 二次加热器沿固定旋转器的轴向加热固定旋转器的单加热跨度，并且产生传导到定影旋转器的双加热跨度的减少的热量。 减少的热量小于仅由二次加热器加热的定影转子的单加热跨度的加热量。

公开(公告)号：US09639042B2

公开(公告)日：2017-05-02

申请号：US15063755

申请日：2016-03-08

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

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

IPC分类号： G03G15/20

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

摘要： A fixing device includes a nip formation pad to press against a fixing rotator. A primary heater is disposed opposite the fixing rotator in a primary heating span spanning in an axial direction of the fixing rotator to heat the primary heating span of the fixing rotator from which heat is conducted to the nip formation pad with a primary conduction. A secondary heater is disposed opposite the fixing rotator in a secondary heating span that is outboard from the primary heating span in the axial direction of the fixing rotator. The secondary heater is interposed between a first nip formation portion and a second nip formation portion of the nip formation pad to heat the secondary heating span of the fixing rotator through the nip formation pad from which heat is conducted to the fixing rotator with a secondary conduction greater than the primary conduction.

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：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：US09678460B2

公开(公告)日：2017-06-13

申请号：US15063769

申请日：2016-03-08

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/2042 ,  G03G2215/0132 ,  G03G2215/2035

摘要： A fixing device includes a primary heater, a secondary heater, and a tertiary heater to heat a primary heating span, a secondary heating span, and a tertiary heating span of a fixing rotator, respectively. A primary temperature detector and a secondary temperature detector detect a temperature of the fixing rotator. A tertiary temperature detector detects a temperature of a pressure rotator. A controller selectively performs a primary control mode to de-energize the tertiary heater and a secondary control mode to connect the secondary heater and the tertiary heater in series to energize the primary heater, the secondary heater, and the tertiary heater. The controller energizes the secondary heater and the tertiary heater in the secondary control mode based on the temperature of the fixing rotator and the pressure rotator detected by the secondary temperature detector and the tertiary temperature detector, respectively.

公开(公告)号：US09778606B2

公开(公告)日：2017-10-03

申请号：US15011982

申请日：2016-02-01

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2064

摘要： A fixing device includes a first heater and a second heater disposed inside a fixing rotator to heat the fixing rotator. The first heater generates an increased amount of heat and includes a first heat generator having a first heating span in a longitudinal direction of the first heater. The second heater generates a decreased amount of heat and includes a second heat generator having a second heating span in a longitudinal direction of the second heater. A partition is interposed between the first heater and the second heater to define a first compartment having an increased size and accommodating the first heater and a second compartment having a decreased size and accommodating the second heater.

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.