公开(公告)号：US20160004197A1

公开(公告)日：2016-01-07

申请号：US14851583

申请日：2015-09-11

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.

摘要翻译： 根据实施例，固定装置包括：环形固定构件; 加热单元，设置在所述固定构件的内周面的内侧; 以及辊隙形成单元，其与固定构件夹在其间的与旋转驱动的按压构件压力接触以形成辊隙。 辊隙形成单元具有与两端相比接触表面的中心朝向按压构件突出的形状。 压区形成单元在空载状态下与夹紧形成单元的两端相比，在朝向加压构件的中心处具有突出量设定为小于压区形成单元的弯曲量时 与固定构件夹在其间的按压构件压接。

公开(公告)号：US20120155935A1

公开(公告)日：2012-06-21

申请号：US13315581

申请日：2011-12-09

申请人： Masaaki YOSHIKAWA ,  Tetsuo TOKUDA ,  Yutaka IKEBUCHI ,  Takuya SESHITA ,  Hiroshi YOSHINAGA ,  Hajime GOTOH ,  Yoshiki YAMAGUCHI ,  Toshihiko SHIMOKAWA ,  Kenji ISHII ,  Takahiro IMADA ,  Naoki IWAYA ,  Yuji ARAI ,  Arinobu YOSHIURA ,  Hiromasa TAKAGI ,  Ippei FUJIMOTO

发明人： Masaaki YOSHIKAWA ,  Tetsuo TOKUDA ,  Yutaka IKEBUCHI ,  Takuya SESHITA ,  Hiroshi YOSHINAGA ,  Hajime GOTOH ,  Yoshiki YAMAGUCHI ,  Toshihiko SHIMOKAWA ,  Kenji ISHII ,  Takahiro IMADA ,  Naoki IWAYA ,  Yuji ARAI ,  Arinobu YOSHIURA ,  Hiromasa TAKAGI ,  Ippei FUJIMOTO

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device, including a fixing member; a pressure member; a nip forming member; a reinforcing member; a heating member; and a flange member including a cylinder inserted in an inner circumference at an edge of the fixing member in an axial direction thereof and a flange fixed on a frame of the fixing device, wherein the cylinder of the flange member includes a notch storing the nip forming member at a part on the circumference, has an arc-shaped outer circumferential cross-section at an area corresponding to an area where the fixing member is heated by the heating member, having a predetermined radius equivalent to a radius of the fixing member, and the arc has a center located at an upstream side in a recording medium feeding direction relative to a center line of the nip forming member in the recording medium feeding direction.

摘要翻译： 一种固定装置，包括固定构件; 压力构件; 辊隙形成构件; 加强件; 加热构件; 以及凸缘构件，其包括在固定构件的轴向方向上的内周中插入的气缸和固定在所述定影装置的框架上的凸缘，所述凸缘构件的气缸包括存储所述辊隙成形 在圆周上的一部分上的部件在对应于固定部件被加热部件加热的区域的区域上具有弧形的外周横截面，其具有等于固定部件的半径的预定半径，以及 电弧具有位于记录介质供给方向上相对于夹持形成部件的中心线的记录介质输送方向上游侧的中心。

公开(公告)号：US20120121304A1

公开(公告)日：2012-05-17

申请号：US13293561

申请日：2011-11-10

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G2215/2035

摘要： A fixing device includes a rotatable, flexible fuser belt, a heater, a fuser pad, and a pressure member. The fuser belt is looped into a generally cylindrical configuration. The heater is disposed adjacent to the fuser belt to heat the fuser belt. The fuser pad is disposed inside the loop of the fuser belt, and has an outer peripheral surface thereof formed in a generally concave configuration. The pressure member is disposed opposite the fuser pad with the fuser belt interposed between the fuser pad and the pressure member. The pressure member presses in a load direction against the outer peripheral surface of the fuser pad through the fuser belt to form a fixing nip therebetween. The fuser pad includes, along the outer peripheral surface thereof, a protruding portion and an inwardly curved portion adjoining the protruding portion to face an outer circumferential surface of the pressure member.

摘要翻译： 定影装置包括可旋转的柔性定影带，加热器，定影垫和压力构件。 定影带环绕成大致圆柱形的构造。 加热器邻近定影带设置以加热定影带。 定影垫设置在定影带的环的内部，并且其外周表面形成为大致凹形的构造。 压力构件设置在定影垫的相对处，定影带插入在定影垫和压力构件之间。 压力构件通过定影带将负载方向压靠在定影垫的外周面上，以在它们之间形成定影辊隙。 定影垫沿着其外周表面包括突出部分和邻接突出部分的面向压力构件的外周表面的向内弯曲部分。

公开(公告)号：US20120121305A1

公开(公告)日：2012-05-17

申请号：US13293794

申请日：2011-11-10

申请人： Masaaki YOSHIKAWA ,  Yuji ARAI ,  Hiromasa TAKAGI ,  Yoshiki YAMAGUCHI ,  Arinobu YOSHIURA ,  Toshihiko SHIMOKAWA ,  Tetsuo TOKUDA ,  Yutaka IKEBUCHI ,  Kenji ISHII ,  Naoki IWAYA ,  Takahiro IMADA ,  Hiroshi YOSHINAGA ,  Takuya SESHITA ,  Hajime GOTOH ,  Ippei FUJIMOTO

发明人： Masaaki YOSHIKAWA ,  Yuji ARAI ,  Hiromasa TAKAGI ,  Yoshiki YAMAGUCHI ,  Arinobu YOSHIURA ,  Toshihiko SHIMOKAWA ,  Tetsuo TOKUDA ,  Yutaka IKEBUCHI ,  Kenji ISHII ,  Naoki IWAYA ,  Takahiro IMADA ,  Hiroshi YOSHINAGA ,  Takuya SESHITA ,  Hajime GOTOH ,  Ippei FUJIMOTO

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a tubular belt holder, a rotatable, flexible fuser belt, a heater, a fuser pad, and a pressure member. The belt holder extends in an axial direction. The fuser belt is looped around the belt holder to rotate in a circumferential direction of the belt holder. The heater is disposed adjacent to the belt holder to heat the belt holder. The fuser pad is accommodated in the belt holder inside the loop of the fuser belt. The pressure member is disposed opposite the belt holder with the fuser belt interposed between the fuser pad and the pressure member. The pressure member presses in a load direction against the fuser pad through the fuser belt to form a fixing nip therebetween. The belt holder includes, along a circumferential dimension thereof, an upstream, first circumferential portion, a downstream, second circumferential portion, and a midstream, third circumferential portion.

摘要翻译： 定影装置包括管状带保持器，可旋转的柔性定影带，加热器，定影垫和压力构件。 皮带保持架沿轴向方向延伸。 定影带围绕带保持器环绕在带保持器的圆周方向上旋转。 加热器邻近带保持器设置以加热带保持器。 定影垫容纳在定影带环内的皮带保持架内。 压力构件与带保持器相对设置，定影带插入在定影垫和压力构件之间。 压力构件通过定影带在负载方向上压靠定影垫，以在它们之间形成定影辊隙。 带保持器沿其周向尺寸包括上游，第一周向部分，下游，第二圆周部分和中游第三圆周部分。

公开(公告)号：US20110229226A1

公开(公告)日：2011-09-22

申请号：US13042706

申请日：2011-03-08

申请人： Tetsuo TOKUDA ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Naoki IWAYA ,  Yoshiki YAMAGUCHI ,  Yutaka IKEBUCHI ,  Ippei FUJIMOTO ,  Takuya SESHITA ,  Takahiro IMADA ,  Takamasa HASE ,  Toshihiko SHIMOKAWA

发明人： Tetsuo TOKUDA ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Naoki IWAYA ,  Yoshiki YAMAGUCHI ,  Yutaka IKEBUCHI ,  Ippei FUJIMOTO ,  Takuya SESHITA ,  Takahiro IMADA ,  Takamasa HASE ,  Toshihiko SHIMOKAWA

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G2215/2035 ,  G03G2215/2041

摘要： A fixing device includes a fixing member formed into a loop and rotatable in a predetermined direction of rotation. A heating assembly faces a first region on an inner circumferential surface of the fixing member to heat the fixing member. The heating assembly is thermally deformed to contact and move the fixing member. A first fixing member support and a second fixing member support face a second region on the inner circumferential surface of the fixing member other than the first region. The first fixing member support and the second fixing member support contact and support the rotating fixing member moved by the thermally deformed heating assembly.

摘要翻译： 定影装置包括形成为环状并沿预定旋转方向旋转的固定构件。 加热组件面对固定构件的内周面上的第一区域，以加热固定构件。 加热组件热变形以接触和移动固定构件。 第一固定构件支撑件和第二固定构件支撑件面对除了第一区域之外的固定构件的内周面上的第二区域。 第一固定构件支撑件和第二固定构件支撑接触并支撑由热变形加热组件移动的旋转固定构件。

公开(公告)号：US20110217093A1

公开(公告)日：2011-09-08

申请号：US13016342

申请日：2011-01-28

申请人： Tetsuo TOKUDA ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Naoki Iwaya ,  Yoshiki Yamaguchi ,  Yutaka Ikebuchi ,  Takahiro Imada ,  Takamasa Hase ,  Ippei Fujimoto ,  Toshihiko Shimokawa

发明人： Tetsuo TOKUDA ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Hiroshi Yoshinaga ,  Naoki Iwaya ,  Yoshiki Yamaguchi ,  Yutaka Ikebuchi ,  Takahiro Imada ,  Takamasa Hase ,  Ippei Fujimoto ,  Toshihiko Shimokawa

IPC分类号： G03G15/20

CPC分类号： G03G15/20

摘要： A fixing device includes a fixing member formed into a loop inside which a nip formation member, a core holder, a heater support, and a laminated heater are provided, and a pressing member provided outside the loop formed by the fixing member. The pressing member is pressed against the nip formation member via the fixing member. The heater support is between the laminated heater and the nip formation member to support the laminated heater. The core holder is between the nip formation member and the heater support to support the nip formation member and the heater support.

摘要翻译： 定影装置包括形成在其中设置有辊隙形成构件，芯保持器，加热器支撑件和层叠加热器的环中的固定构件，以及设置在由固定构件形成的环的外侧的按压构件。 按压构件经由固定构件压靠在辊隙形成构件上。 加热器支撑件位于层压加热器和辊隙形成构件之间以支撑层压加热器。 芯保持器位于辊隙形成构件和加热器支撑件之间，以支撑辊隙形成构件和加热器支撑件。

公开(公告)号：US20110076071A1

公开(公告)日：2011-03-31

申请号：US12888980

申请日：2010-09-23

申请人： Yoshiki YAMAGUCHI ,  Kenichi HASEGAWA ,  Masaaki YOSHIKAWA ,  Hiroshi YOSHINAGA ,  Kenji ISHII ,  Akira SHINSHI ,  Naoki IWAYA ,  Tetsuo TOKUDA ,  Ippei FUJIMOTO ,  Yutaka IKEBUCHI ,  Shuntaroh TAMAKI ,  Toshihiko SHIMOKAWA

发明人： Yoshiki YAMAGUCHI ,  Kenichi HASEGAWA ,  Masaaki YOSHIKAWA ,  Hiroshi YOSHINAGA ,  Kenji ISHII ,  Akira SHINSHI ,  Naoki IWAYA ,  Tetsuo TOKUDA ,  Ippei FUJIMOTO ,  Yutaka IKEBUCHI ,  Shuntaroh TAMAKI ,  Toshihiko SHIMOKAWA

IPC分类号： G03G15/20

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

摘要： A fixing device includes a fixing member, a nip formation member, a pressing member, and a low-friction sheet. The nip formation member is provided inside a loop formed by the fixing member rotating in a predetermined direction of rotation. The pressing member is pressed against the nip formation member via the fixing member to form a nip between the fixing member and the pressing member through which a recording medium bearing a toner image passes. The fixing member and the pressing member rotate and convey the recording medium bearing the toner image through the nip. The low-friction sheet, over which the fixing member slides, covers the nip formation member. The nip formation member includes a first sandwiching member covered by the low-friction sheet, and a second sandwiching member sandwiching the low-friction sheet together with the first sandwiching member.

摘要翻译： 固定装置包括固定部件，辊隙形成部件，按压部件和低摩擦片材。 辊隙形成构件设置在由沿着预定旋转方向旋转的固定构件形成的环内。 按压构件经由固定构件压靠在压区形成构件上，以在固定构件和按压构件之间形成夹持物，通过该挤压构件支承调色剂图像的记录介质通过。 固定构件和按压构件通过辊隙旋转并传送承载调色剂图像的记录介质。 固定部件滑动的低摩擦片覆盖辊隙形成部件。 辊隙形成构件包括由低摩擦片覆盖的第一夹层构件和将低摩擦片与第一夹层构件一起夹在中间的第二夹层构件。

公开(公告)号：US20170146933A1

公开(公告)日：2017-05-25

申请号：US15352782

申请日：2016-11-16

申请人： Motoyoshi YAMANO ,  Tetsuo TOKUDA ,  Yoshikuni SASAKI ,  Hiroshi ONO ,  Hironori YAMAOKA ,  Ryohhei SUGIYAMA ,  Kohichi UTSUNOMIYA ,  Arinobu YOSHIURA ,  Hideo NAGAFUJI

发明人： Motoyoshi YAMANO ,  Tetsuo TOKUDA ,  Yoshikuni SASAKI ,  Hiroshi ONO ,  Hironori YAMAOKA ,  Ryohhei SUGIYAMA ,  Kohichi UTSUNOMIYA ,  Arinobu YOSHIURA ,  Hideo NAGAFUJI

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/2032 ,  G03G15/2064

摘要： A fixing device includes a heater, a fixing rotator, a pressure rotator to press against the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed, a moving device to move the pressure rotator in directions in which the pressure rotator comes into contact with and separates from the fixing rotator, a thermal expansion amount predictor to predict an amount of thermal expansion of the fixing rotator while the recording medium is conveyed, and a nip width adjuster to control a moving distance of the pressure rotator moved by the moving device toward the fixing rotator, depending on the amount of thermal expansion of the fixing rotator predicted by the thermal expansion amount predictor, so as to adjust a width of the fixing nip to maintain a substantially constant width of the fixing nip.

公开(公告)号：US20180088502A1

公开(公告)日：2018-03-29

申请号：US15708734

申请日：2017-09-19

申请人： Ryohhei SUGIYAMA ,  Hironori YAMAOKA ,  Takashi SAKAMAKI ,  Tetsuo TOKUDA ,  Akiyasu AMITA ,  Shinichi NAMEKATA ,  Yohhei WATANABE ,  Fumihiro HIROSE ,  Teppei KAWATA ,  Masateru UJIIE

发明人： Ryohhei SUGIYAMA ,  Hironori YAMAOKA ,  Takashi SAKAMAKI ,  Tetsuo TOKUDA ,  Akiyasu AMITA ,  Shinichi NAMEKATA ,  Yohhei WATANABE ,  Fumihiro HIROSE ,  Teppei KAWATA ,  Masateru UJIIE

IPC分类号： G03G15/20

CPC分类号： G03G15/2032 ,  G03G15/206 ,  G03G15/2064 ,  G03G2215/2032

摘要： An image forming apparatus includes a fixing belt stretched across a first roller and a second roller including an elastic layer. A pressure rotator presses against the second roller via the fixing belt to form a fixing nip between the pressure rotator and the fixing belt. A recording medium bearing a toner image is conveyed through the fixing nip. A clearance detector detects a clearance between the first roller and the second roller. A mover moves the pressure rotator with respect to the second roller in a pressing direction in which the pressure rotator presses against the second roller via the fixing belt and a separation direction in which the pressure rotator separates from the second roller. A controller controls an amount of movement of the pressure rotator moved by the mover toward the second roller based on the clearance detected by the clearance detector.

公开(公告)号：US20170131666A1

公开(公告)日：2017-05-11

申请号：US15293881

申请日：2016-10-14

申请人： Ryohhei SUGIYAMA ,  Hiroshi ONO ,  Hironori YAMAOKA ,  Motoyoshi YAMANO ,  Yoshikuni SASAKI ,  Tetsuo TOKUDA

发明人： Ryohhei SUGIYAMA ,  Hiroshi ONO ,  Hironori YAMAOKA ,  Motoyoshi YAMANO ,  Yoshikuni SASAKI ,  Tetsuo TOKUDA

IPC分类号： G03G15/20

CPC分类号： G03G15/2039

摘要： An image forming apparatus includes a fixing rotator rotatable in a predetermined direction of rotation, over which a recording medium is conveyed, and a heater to heat the fixing rotator. A temperature detector detects a temperature of the fixing rotator. A controller performs a primary productivity control to define a primary productivity rate of printing per unit time based on the temperature of the fixing rotator that is detected by the temperature detector. The controller calculates an amount of power suppliable to the heater and performs a secondary productivity control simultaneously with and separately from the primary productivity control. The secondary productivity control defines a secondary productivity rate of printing per unit time based on the amount of power suppliable to the heater. The controller selects one of the primary conductivity rate and the secondary productivity rate whichever is lower as a productivity rate of the image forming apparatus.