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：US08811837B2

公开(公告)日：2014-08-19

申请号：US12929961

申请日：2011-02-28

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/20

摘要： A fixing device includes a substantially cylindrical metal member, a heater, an endless, flexible fixing member, a rotary pressing member, a stationary member, a first temperature detector, and a second temperature detector. The first temperature detector is disposed upstream from a nip in a rotation direction of the fixing member to detect a surface temperature of the fixing member. The second temperature detector is disposed downstream from the nip in a rotation direction of the pressing member to detect a surface temperature of the pressing member. When a difference between a surface temperature of the fixing member detected by the first temperature detector and a surface temperature of the pressing member detected by the second temperature detector after a predetermined time has elapsed since the first temperature detector detects the surface temperature of the fixing member is greater than a predetermined threshold, the heater stops heating the metal member.

摘要翻译： 定影装置包括基本上圆柱形的金属构件，加热器，环形，柔性固定构件，旋转按压构件，静止构件，第一温度检测器和第二温度检测器。 第一温度检测器设置在固定构件的旋转方向上的辊隙的上游，以检测固定构件的表面温度。 第二温度检测器沿着按压构件的旋转方向设置在辊隙的下游，以检测按压构件的表面温度。 当从第一温度检测器检测到固定构件的表面温度经过预定时间后经由第一温度检测器检测的固定构件的表面温度与由第二温度检测器检测到的按压构件的表面温度之间的差异 大于预定阈值时，加热器停止加热金属构件。

公开(公告)号：US08682192B2

公开(公告)日：2014-03-25

申请号：US13217488

申请日：2011-08-25

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2039

摘要： An image forming apparatus includes a fixing device including a fixing member; a pressure member to press against the fixing member; and a halogen lamp to heat the fixing member, and a controller to control the halogen lamp. The controller controls an ON duty of the halogen lamp according to a control cycle, and sets the ON duty including two thresholds consisting of a first ON duty and a second ON duty that is larger than the first ON duty. The controller calculates an ON duty of the halogen lamp, judges whether the calculated ON duty is equal to or more than the first duty and less then the second duty, and changes the calculated ON duty when the calculated ON duty is equal to or more than the first duty and less then the second duty.

摘要翻译： 图像形成装置包括：固定装置，包括固定构件; 压力构件，以压靠固定构件; 以及用于加热固定构件的卤素灯，以及控制卤素灯的控制器。 控制器根据控制周期控制卤素灯的导通占空比，并且设置包括由第一导通占空比和大于第一导通占空比的第二导通占空比组成的两个阈值的导通占空比。 控制器计算卤素灯的导通占空比，判断所计算的导通占空比是否等于或大于第一占空比，小于第二占空比，并且当所计算的导通占空比等于或大于 第一责任，少于第二任。

公开(公告)号：US08588670B2

公开(公告)日：2013-11-19

申请号：US13097711

申请日：2011-04-29

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G2215/2035

摘要： A fixing device includes a metal thermal conductor provided inside a loop formed by a fixing rotary body to heat the fixing rotary body; a heater provided inside the metal thermal conductor to heat the metal thermal conductor; a pad support provided inside the metal thermal conductor; and a reflector provided between the heater and the pad support to reflect heat emitted by the heater thereto toward an inner circumferential surface of the metal thermal conductor. The reflector includes a center reflection portion provided at a center of the reflector in a longitudinal direction thereof and a plurality of end reflection portions provided at respective lateral ends of the reflector. A plurality of reflector moving assemblies is connected to the plurality of end reflection portions of the reflector, respectively, to tilt the plurality of end reflection portions toward the center reflection portion.

摘要翻译： 定影装置包括设置在由固定旋转体形成的环内的金属导热体，用于加热定影旋转体; 设置在金属热导体内部以加热金属热导体的加热器; 设置在金属热导体内部的垫支撑件; 以及设置在加热器和焊盘支撑件之间的反射器，以将加热器发射的热量朝向金属热导体的内周表面反射。 反射器包括设置在反射器的纵向中心的中心反射部分和设置在反射器的各个侧端处的多个端部反射部分。 多个反射器移动组件分别连接到反射器的多个端部反射部分，以将多个端部反射部分朝向中心反射部分倾斜。

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：US08515324B2

公开(公告)日：2013-08-20

申请号：US12923176

申请日：2010-09-08

申请人： Kenji Ishii ,  Naoki Iwaya ,  Akira Shinshi ,  Kenichi Hasegawa ,  Hiroshi Yoshinaga ,  Yoshiki Yamaguchi ,  Yutaka Ikebuchi ,  Ippei Fujimoto ,  Shuntaroh Tamaki ,  Tetsuo Tokuda ,  Toshihiko Shimokawa ,  Masaaki Yoshikawa

发明人： Kenji Ishii ,  Naoki Iwaya ,  Akira Shinshi ,  Kenichi Hasegawa ,  Hiroshi Yoshinaga ,  Yoshiki Yamaguchi ,  Yutaka Ikebuchi ,  Ippei Fujimoto ,  Shuntaroh Tamaki ,  Tetsuo Tokuda ,  Toshihiko Shimokawa ,  Masaaki Yoshikawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G2215/2035

摘要： A fixing device includes an endless, rotatable fixing member, a rotational pressing member, a nip formation member, and an urging unit. The rotational pressing member is rotatably provided in contact with the fixing member. The nip formation member is disposed opposite the rotational pressing member via the fixing member to form a fixing nip between the fixing member and the rotational pressing member. The urging unit is disposed opposite the rotational pressing member via the nip formation member and the fixing member to push against and deform the nip formation member to change a curvature of a contact face between the fixing member and the rotational pressing member at the fixing nip.

摘要翻译： 定影装置包括环形可旋转固定构件，旋转按压构件，辊隙形成构件和推压单元。 旋转按压构件可旋转地设置成与固定构件接触。 辊隙形成构件经由固定构件与旋转按压构件相对设置，以在固定构件和旋转按压构件之间形成定影辊隙。 推压单元经由辊隙形成构件和固定构件与旋转按压构件相对地设置以推压和变形辊隙形成构件，以在定影辊隙处改变固定构件和旋转按压构件之间的接触面的曲率。

公开(公告)号：US08489008B2

公开(公告)日：2013-07-16

申请号：US12929496

申请日：2011-01-28

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/00139 ,  G03G2215/2035

摘要： A fixing device includes an endless fuser belt, a contact member, a pressure member, a heater, a heater support, and a belt tensioner. The endless fuser belt is looped into a generally cylindrical configuration extending in an axial direction thereof. The contact member extends in the axial direction inside the loop of the fuser belt. The pressure member extends in the axial direction with the belt interposed between the contact member and the pressure member. The pressure member is pressed against the contact member through the fuser belt to form a fixing nip. The heater is disposed inside the loop of the fuser belt to heat the fuser belt. The heater support is disposed inside the loop of the fuser belt to hold the heater in position. The belt tensioner is disposed inside the loop of the fuser belt to tighten the fuser belt.

摘要翻译： 定影装置包括环形定影带，接触构件，压力构件，加热器，加热器支撑件和带张紧器。 环形定影带被环绕成在其轴向方向上延伸的大致圆柱形构造。 接触构件在定影带的环的内部沿轴向延伸。 压力构件在轴向方向上延伸，并且带插入在接触构件和压力构件之间。 压力构件通过定影带压靠接触构件以形成定影辊隙。 加热器设置在定影带的环内，以加热定影带。 加热器支撑件设置在定影带的环内，以将加热器保持在适当位置。 皮带张紧器设置在定影带的环内，以收紧定影带。

公开(公告)号：US08406647B2

公开(公告)日：2013-03-26

申请号：US12878557

申请日：2010-09-09

申请人： Akira Shinshi ,  Yoshiki Yamaguchi ,  Kenichi Hasegawa ,  Masaaki Yoshikawa ,  Hiroshi Yoshinaga ,  Kenji Ishii ,  Tetuso Tokuda ,  Ippei Fujimoto ,  Naoki Iwaya ,  Yutaka Ikebuchi ,  Shuntaroh Tamaki ,  Takahiro Imada ,  Takamasa Hase ,  Toshihiko Shimokawa

发明人： Akira Shinshi ,  Yoshiki Yamaguchi ,  Kenichi Hasegawa ,  Masaaki Yoshikawa ,  Hiroshi Yoshinaga ,  Kenji Ishii ,  Tetuso Tokuda ,  Ippei Fujimoto ,  Naoki Iwaya ,  Yutaka Ikebuchi ,  Shuntaroh Tamaki ,  Takahiro Imada ,  Takamasa Hase ,  Toshihiko Shimokawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2039

摘要： A fixing device includes an endless, flexible fixing member, a heat conductive member, a heater, a pressing member, a nip formation member, and a radiation member. The endless, flexible fixing member is formed into a loop. The heat conductive member is disposed within the loop formed by the fixing member to conduct heat to the fixing member. The heater is disposed near the heat conductive member to heat the heat conductive member. The pressing member is rotatably pressed against the fixing member to form a fixing nip between the fixing member and the pressing member. A recording medium is conveyed through the fixing nip. The radiation member is detachably pressable against an outer circumference of the fixing member to contact the fixing member with the heat conductive member to cool the fixing member and the heat conductive member.

摘要翻译： 固定装置包括环形柔性固定构件，导热构件，加热器，按压构件，辊隙形成构件和辐射构件。 环形柔性固定件形成一个环。 导热构件设置在由固定构件形成的环内，以将热量传导到固定构件。 加热器设置在导热构件附近以加热导热构件。 按压构件可旋转地按压固定构件，以在固定构件和按压构件之间形成定影夹持部。 记录介质通过定影辊隙传送。 辐射构件可拆卸地压靠固定构件的外周，以使固定构件与导热构件接触，以冷却固定构件和导热构件。

公开(公告)号：US08311469B2

公开(公告)日：2012-11-13

申请号：US12841593

申请日：2010-07-22

申请人： Masaaki Yoshikawa ,  Yoshiki Yamaguchi ,  Toshihiko Shimokawa ,  Kenji Ishii ,  Naoki Iwaya ,  Takahiro Imada ,  Takamasa Hase ,  Tetsuo Tokuda ,  Yutaka Ikebuchi ,  Hiroshi Yoshinaga ,  Ippei Fujimoto ,  Kenichi Hasegawa ,  Shuntaroh Tamaki ,  Akira Shinshi

发明人： Masaaki Yoshikawa ,  Yoshiki Yamaguchi ,  Toshihiko Shimokawa ,  Kenji Ishii ,  Naoki Iwaya ,  Takahiro Imada ,  Takamasa Hase ,  Tetsuo Tokuda ,  Yutaka Ikebuchi ,  Hiroshi Yoshinaga ,  Ippei Fujimoto ,  Kenichi Hasegawa ,  Shuntaroh Tamaki ,  Akira Shinshi

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： In a fixing device, a stationary member is provided inside a belt member and pressed against a rotary pressing member via the belt member to form a nip between the rotary pressing member and the belt member through which a recording medium bearing a toner image passes. An expandable heating member is provided inside the belt member to face an inner circumferential surface of the belt member to heat the belt member. A regulator contacts a downstream portion of the heating member provided downstream from a center of the nip in a direction of rotation of the belt member to expand the downstream portion of the heating member.

摘要翻译： 在固定装置中，固定构件设置在带构件的内部并通过带构件压靠在旋转按压构件上，以在旋转按压构件和带构件之间形成辊隙，通过该夹持部分带有调色剂图像的记录介质通过。 一个可膨胀的加热构件设置在带构件的内部以面对带构件的内圆周表面以加热带构件。 调节器接触加热构件的下游部分，其沿着带构件的旋转方向设置在辊隙的中心的下游，以扩大加热构件的下游部分。

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。