公开(公告)号：US09158250B2

公开(公告)日：2015-10-13

申请号：US13346093

申请日：2012-01-09

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： 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： 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：US20130266355A1

公开(公告)日：2013-10-10

申请号：US13993229

申请日：2011-11-22

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2085 ,  G03G15/2017 ,  G03G15/2028 ,  G03G15/2064 ,  G03G2215/2035

摘要： A fixing apparatus includes: a fixing belt; a pressurizing roller; a supporting member; a heating unit; a nip forming member; and a deform preventing unit. The fixing apparatus and an image forming apparatus including the fixing apparatus prevent a supporting member from deforming due to sliding of a fixing member, improving energy conservation and durability of parts and obtaining a good image.

摘要翻译： 定影装置包括：定影带; 加压辊; 支撑构件; 加热单元 辊隙形成构件; 和防变形部。 定影装置和包括定影装置的图像形成装置防止支撑构件由于固定构件的滑动而变形，从而提高部件的节能和耐久性并获得良好的图像。

公开(公告)号：US20120148303A1

公开(公告)日：2012-06-14

申请号：US13311002

申请日：2011-12-05

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a frame, a tubular belt holder, a rotatable, flexible fuser belt, a heater, a fuser pad, a pressure member, and a mounting attachment. The tubular belt holder extends in an axial direction thereof. The fuser belt is looped into a generally cylindrical configuration 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, and extends in the axial direction. The pressure member is disposed opposite the belt holder with the fuser belt interposed between the fuser pad and the pressure member. The mounting attachment is provided to a longitudinal end of the tubular belt holder to allow retention and detachable attachment of the belt holder end to the frame.

摘要翻译： 定影装置包括框架，管状带保持器，可旋转的柔性定影带，加热器，定影垫，压力构件和安装附件。 管状皮带保持器沿其轴向方向延伸。 定影带围绕带保持器环绕成大致圆柱形的构造，以沿着带保持器的圆周方向旋转。 加热器邻近带保持器设置以加热带保持器。 定影垫被容纳在定影带的环内的带保持器中，并且在轴向方向上延伸。 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。 安装附件设置在管状保持器的纵向端部，以允许带保持器端部保持和可拆卸地附接到框架。

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：US20120121303A1

公开(公告)日：2012-05-17

申请号：US13291678

申请日：2011-11-08

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A fixing device includes a rotatable fixing member in a form of an endless belt; a pressing member pressing the fixing member; a contacting member in contact with the pressing member; a holding member holding the contacting member in a pressing direction of the pressing member; a heating unit heating the fixing member; and shape maintaining units maintaining a shape of the fixing member. Further, the heating unit is disposed on an upstream side of a horizontal line passing through the center of the pressing member and the holding member is disposed on a downstream side of a horizontal line passing through the arc axis of the shape maintaining units.

摘要翻译： 定影装置包括环形带形式的可旋转固定构件; 按压所述固定构件的按压构件; 接触构件，其与所述按压构件接触; 保持构件，其沿所述按压构件的按压方向保持所述接触构件; 加热单元加热所述固定构件; 以及形状维持单元保持固定构件的形状。 此外，加热单元设置在通过按压构件的中心的水平线的上游侧，并且保持构件设置在穿过形状保持单元的弧轴的水平线的下游侧。

公开(公告)号：US09158248B2

公开(公告)日：2015-10-13

申请号：US14267169

申请日：2014-05-01

申请人： Yuji Arai ,  Masaaki Yoshikawa ,  Takayuki Seki ,  Takeshi Yamamoto ,  Ryuuichi Mimbu ,  Yutaka Ikebuchi ,  Takuya Seshita ,  Shuntaro Tamaki ,  Hajime Gotoh ,  Takahiro Imada ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa ,  Kensuke Yamaji ,  Akira Suzuki ,  Hiroshi Yoshinaga

发明人： Yuji Arai ,  Masaaki Yoshikawa ,  Takayuki Seki ,  Takeshi Yamamoto ,  Ryuuichi Mimbu ,  Yutaka Ikebuchi ,  Takuya Seshita ,  Shuntaro Tamaki ,  Hajime Gotoh ,  Takahiro Imada ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa ,  Kensuke Yamaji ,  Akira Suzuki ,  Hiroshi Yoshinaga

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotary body and a heater disposed opposite and heating the fixing rotary body. A nip formation assembly presses against an opposed body via the fixing rotary body to form a fixing nip between the fixing rotary body and the opposed body, through which a recording medium is conveyed. A movable heat shield movable in a circumferential direction of the fixing rotary body is interposed between the heater and the fixing rotary body to shield the fixing rotary body from the heater in a variable axial span of the fixing rotary body. A stationary heat shield, interposed between the heater and the fixing rotary body to shield the fixing rotary body from the heater, is disposed outboard from a lateral edge of a heat generator of the heater in an axial direction of the fixing rotary body.

摘要翻译： 定影装置包括固定旋转体和相对设置并加热定影旋转体的加热器。 压区形成组件通过固定旋转体压靠在相对的主体上，以在定影旋转体和相对的主体之间形成定影辊隙，记录介质通过该相对的主体被输送。 可在固定旋转体的圆周方向上移动的可移动隔热罩插入在加热器和定影旋转体之间，以在定影旋转体的可变的轴向跨度内将定影旋转体屏蔽在加热器上。 设置在加热器和定影旋转体之间以将定影旋转体屏蔽到加热器的固定隔热罩设置在固定旋转体的轴向上从加热器的发热体的侧边缘的外侧。

公开(公告)号：US09146508B2

公开(公告)日：2015-09-29

申请号：US14268198

申请日：2014-05-02

申请人： Takahiro Imada ,  Masaaki Yoshikawa ,  Takayuki Seki ,  Yuji Arai ,  Takeshi Yamamoto ,  Ryuuichi Mimbu ,  Yutaka Ikebuchi ,  Takuya Seshita ,  Shuntaro Tamaki ,  Hajime Gotoh ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa ,  Kensuke Yamaji ,  Akira Suzuki ,  Hiroshi Yoshinaga

发明人： Takahiro Imada ,  Masaaki Yoshikawa ,  Takayuki Seki ,  Yuji Arai ,  Takeshi Yamamoto ,  Ryuuichi Mimbu ,  Yutaka Ikebuchi ,  Takuya Seshita ,  Shuntaro Tamaki ,  Hajime Gotoh ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa ,  Kensuke Yamaji ,  Akira Suzuki ,  Hiroshi Yoshinaga

IPC分类号： G03G15/20

CPC分类号： G03G15/2017 ,  G03G15/2042 ,  G03G2215/2016 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator heated by a heater and a pressing rotator pressed against the fixing rotator to form a fixing nip therebetween, through which a recording medium bearing a toner image is conveyed. A heat shield interposed between the heater and the fixing rotator is movable in a circumferential direction of the fixing rotator to shield the fixing rotator from the heater in a variable axial shield span of the fixing rotator. The fixing rotator performs fixing rotation to convey the recording medium through the fixing nip while heating the recording medium and supplemental rotation other than fixing rotation. The heat shield moves to a decreased shield span position where the heat shield shields the fixing rotator from the heater in a decreased axial shield span of the fixing rotator during supplemental rotation thereof.

摘要翻译： 定影装置包括由加热器加热的固定旋转器和压靠在定影旋转器上的按压旋转器，以在其间形成定影辊隙，通过该固定辊子承载调色剂图像的记录介质。 插入在加热器和定影旋转器之间的隔热罩可以在固定旋转器的圆周方向上移动，以在定影旋转器的可变的轴向屏蔽跨度内屏蔽定影旋转器与加热器。 定影旋转器执行固定旋转，以便在加热记录介质和固定旋转以外的补充旋转的同时，通过定影辊隙传送记录介质。 隔热板移动到减小的屏蔽跨度位置，在该位置处，热屏蔽件在其辅助旋转期间以固定旋转器的减小的轴向屏蔽跨度将加热器屏蔽固定转子。

公开(公告)号：US09535380B2

公开(公告)日：2017-01-03

申请号：US14278252

申请日：2014-05-15

申请人： Toshihiko Shimokawa ,  Yutaka Ikebuchi ,  Hiroshi Yoshinaga ,  Takayuki Seki ,  Yuji Arai ,  Ryuuichi Mimbu ,  Shuntaro Tamaki ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Masaaki Yoshikawa ,  Takuya Seshita ,  Hajime Gotoh ,  Takahiro Imada ,  Kensuke Yamaji ,  Akira Suzuki

发明人： Toshihiko Shimokawa ,  Yutaka Ikebuchi ,  Hiroshi Yoshinaga ,  Takayuki Seki ,  Yuji Arai ,  Ryuuichi Mimbu ,  Shuntaro Tamaki ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Masaaki Yoshikawa ,  Takuya Seshita ,  Hajime Gotoh ,  Takahiro Imada ,  Kensuke Yamaji ,  Akira Suzuki

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2017 ,  G03G15/2039 ,  G03G15/2042 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator, a first heat generator and a second heat generator that heat the fixing rotator, and a support disposed inside the fixing rotator. A reflector, interposed between the support and each of the first heat generator and the second heat generator, reflects light radiated from the first heat generator and the second heat generator toward the fixing rotator. The reflector includes a body mounted on the support and a shield portion projecting from the body toward the first heat generator and the second heat generator to shield the fixing rotator from the first heat generator and the second heat generator. An electric circuit is connected to the first heat generator and the second heat generator. A heat generation restrainer is provided in the electric circuit to restrict heat generation in the electric circuit.

摘要翻译： 定影装置包括固定旋转器，第一热发生器和加热定影旋转器的第二热发生器，以及设置在定影旋转器内的支撑件。 插入在支撑件和第一热发生器和第二热发生器中的每一个之间的反射器将从第一热发生器和第二发热体辐射的光反射到定影转子。 反射器包括安装在支撑体上的主体和从主体向第一热发生器突出的屏蔽部分和第二热发生器，用于屏蔽来自第一发热体和第二发热体的固定旋转体。 电路连接到第一热发生器和第二热发生器。 在电路中设置有发热抑制器，以限制电路中的发热。

公开(公告)号：US09116481B2

公开(公告)日：2015-08-25

申请号：US14269358

申请日：2014-05-05

申请人： Masaaki Yoshikawa ,  Takayuki Seki ,  Yuji Arai ,  Hiroshi Yoshinaga ,  Ryuuichi Mimbu ,  Takuya Seshita ,  Shuntaro Tamaki ,  Takeshi Yamamoto ,  Takahiro Imada ,  Hajime Gotoh ,  Kazuya Saito ,  Yutaka Ikebuchi ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa ,  Kensuke Yamaji ,  Akira Suzuki

发明人： Masaaki Yoshikawa ,  Takayuki Seki ,  Yuji Arai ,  Hiroshi Yoshinaga ,  Ryuuichi Mimbu ,  Takuya Seshita ,  Shuntaro Tamaki ,  Takeshi Yamamoto ,  Takahiro Imada ,  Hajime Gotoh ,  Kazuya Saito ,  Yutaka Ikebuchi ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa ,  Kensuke Yamaji ,  Akira Suzuki

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 a nip formation assembly contacting an inner circumferential surface of the fixing rotator. An opposed rotator presses against the nip formation assembly via the fixing rotator to form a fixing nip between the fixing rotator and the opposed rotator, through which a recording medium is conveyed. A support, disposed opposite the inner circumferential surface of the fixing rotator, supports the nip formation assembly. A heater, disposed opposite the inner circumferential surface of the fixing rotator, heats the fixing rotator. A reflector, disposed opposite an outer circumferential surface of the fixing rotator, reflects heat radiated from the fixing rotator onto the fixing rotator. The reflector spans a circumferential span of the fixing rotator where the fixing rotator is spaced apart from the support with a decreased interval therebetween.

摘要翻译： 定影装置包括可沿预定旋转方向旋转的定影旋转器和与定影旋转器的内圆周表面接触的压区形成组件。 相对的旋转体通过固定旋转器压靠辊隙形成组件，以在固定旋转体和相对旋转体之间形成定影辊隙，记录介质通过该固定辊隙传送。 与固定旋转体的内周面相对设置的支撑件支撑辊隙形成组件。 与定影旋转体的内周面相对设置的加热器加热固定旋转体。 与固定旋转体的外周表面相对设置的反射器将从固定旋转体辐射的热量反射到定影旋转体上。 反射器跨过固定旋转器的周向跨度，其中固定旋转体与支撑件间隔开，间隔减小。

公开(公告)号：US09026025B2

公开(公告)日：2015-05-05

申请号：US14269314

申请日：2014-05-05

申请人： Ryuuichi Mimbu ,  Masaaki Yoshikawa ,  Takayuki Seki ,  Takeshi Yamamoto ,  Yutaka Ikebuchi ,  Takuya Seshita ,  Shuntaro Tamaki ,  Hajime Gotoh ,  Takahiro Imada ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa ,  Kensuke Yamaji ,  Akira Suzuki ,  Hiroshi Yoshinaga ,  Yuji Arai

发明人： Ryuuichi Mimbu ,  Masaaki Yoshikawa ,  Takayuki Seki ,  Takeshi Yamamoto ,  Yutaka Ikebuchi ,  Takuya Seshita ,  Shuntaro Tamaki ,  Hajime Gotoh ,  Takahiro Imada ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa ,  Kensuke Yamaji ,  Akira Suzuki ,  Hiroshi Yoshinaga ,  Yuji Arai

IPC分类号： G03G15/20

CPC分类号： G03G15/2032 ,  G03G15/2017 ,  G03G15/2042

摘要： A fixing device includes a fixing rotator heated by a heater and a pressing rotator to press against the fixing rotator to form a fixing nip therebetween. A heating span adjuster, interposed between the heater and the fixing rotator, is movable in a circumferential direction of the fixing rotator. The heating span adjuster moves to a retracted position where the heating span adjuster allows the heater to heat the fixing rotator in an increased axial heating span of the fixing rotator after the heater starts heating the fixing rotator until the fixing rotator and the pressing rotator start conveying a recording medium through the fixing nip. The heating span adjuster at the retracted position is outboard from a circumferential, direct heating span of the fixing rotator where the heater heats the fixing rotator directly.

摘要翻译： 定影装置包括由加热器加热的定影旋转器和按压旋转器以压靠固定旋转器以在其间形成定影辊隙。 插入在加热器和定影旋转器之间的加热跨度调节器可在定影旋转器的圆周方向上移动。 加热跨度调节器移动到缩回位置，在加热范围调整器允许加热器在加热器开始加热定影旋转器之后加热固定旋转器的增加的轴向加热跨度，直到定影旋转器和按压旋转器开始传送 通过定影辊隙的记录介质。 在缩回位置的加热跨度调节器从定影旋转器的周向，直接加热跨度外侧，其中加热器直接加热定影旋转器。