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：US09348272B2

公开(公告)日：2016-05-24

申请号：US14141334

申请日：2013-12-26

申请人： Shuntaroh Tamaki ,  Takayuki Seki ,  Hiroshi Yoshinaga ,  Yuji Arai ,  Ryuuichi Mimbu ,  Yoshiki Yamaguchi ,  Yutaka Ikebuchi ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa

发明人： Shuntaroh Tamaki ,  Takayuki Seki ,  Hiroshi Yoshinaga ,  Yuji Arai ,  Ryuuichi Mimbu ,  Yoshiki Yamaguchi ,  Yutaka Ikebuchi ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa

IPC分类号： G03G15/20 ,  G03G21/18

CPC分类号： G03G15/2017 ,  G03G15/2042 ,  G03G15/2053 ,  G03G21/1832 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotary body rotatable in a predetermined direction of rotation and a heater disposed opposite and heating the fixing rotary body. An opposed body contacts the fixing rotary body to form a fixing nip therebetween through which a recording medium is conveyed. A heat shield is movable in a circumferential direction of the fixing rotary body and interposed between the heater and the fixing rotary body to shield the fixing rotary body from the heater. A driver is connected to the heat shield to drive and move the heat shield between a shield position where the heat shield is interposed between the heater and the fixing rotary body to shield the fixing rotary body from the heater and a retracted position where the heat shield is retracted from the shield position. A reinforcement is mounted on a long edge of the heat shield.

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体和与该固定旋转体相对地加热的加热器。 相对的体接触固定旋转体以在其间传送记录介质的定影辊隙。 隔热罩可以在固定旋转体的圆周方向上移动并插入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上。 驱动器连接到隔热罩，以驱动和移动隔热罩，其中隔热板插入在加热器和定影旋转体之间的屏蔽位置，以将定影旋转体屏蔽到加热器上，并且其中热屏蔽 从屏蔽位置缩回。 加强件安装在隔热罩的长边上。

公开(公告)号：US09285728B2

公开(公告)日：2016-03-15

申请号：US14143253

申请日：2013-12-30

申请人： Hiroshi Yoshinaga ,  Takayuki Seki ,  Yuji Arai ,  Yutaka Ikebuchi ,  Ryuuichi Mimbu ,  Yoshiki Yamaguchi ,  Shuntaro Tamaki ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Toshihiko Shimokawa

发明人： Hiroshi Yoshinaga ,  Takayuki Seki ,  Yuji Arai ,  Yutaka Ikebuchi ,  Ryuuichi Mimbu ,  Yoshiki Yamaguchi ,  Shuntaro Tamaki ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Toshihiko Shimokawa

IPC分类号： G03G15/00 ,  G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/2042 ,  G03G15/2053 ,  G03G15/55 ,  G03G2215/2035

摘要： An image forming apparatus includes a fixing device including a fixing rotary body and a heater for heating the fixing rotary body. An opposed body contacts the fixing rotary body with releasable pressure therebetween to form a fixing nip therebetween through which a recording medium is conveyed. A heat shield is interposed between the heater and the fixing rotary body and movable in a circumferential direction of the fixing rotary body to shield the fixing rotary body from the heater in a variable circumferential direct heating span of the fixing rotary body where the heater is disposed opposite the fixing rotary body directly. A controller halts the heat shield instantly when a fault occurs during a print job.

摘要翻译： 图像形成装置包括固定装置，该固定装置包括固定旋转体和用于加热定影旋转体的加热器。 相对的身体与固定旋转体接触，其间具有可释放的压力，以在其间输送定影夹持物，通过该定影夹持物传送记录介质。 加热器和固定旋转体之间设置有隔热罩，并且能够在固定旋转体的圆周方向上移动，以便在加热器设置的定影旋转体的可变圆周直接加热跨度内将定影旋转体屏蔽在加热器上 直接与定影旋转体相对。 当打印作业发生故障时，控制器立即停止热屏蔽。

公开(公告)号：US09221661B2

公开(公告)日：2015-12-29

申请号：US14193273

申请日：2014-02-28

申请人： Ryuuichi Mimbu ,  Takayuki Seki ,  Hiroshi Yoshinaga ,  Yuji Arai ,  Yutaka Ikebuchi ,  Yoshiki Yamaguchi ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Shuntaro Tamaki ,  Toshihiko Shimokawa ,  Naoki Iwaya

发明人： Ryuuichi Mimbu ,  Takayuki Seki ,  Hiroshi Yoshinaga ,  Yuji Arai ,  Yutaka Ikebuchi ,  Yoshiki Yamaguchi ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Shuntaro Tamaki ,  Toshihiko Shimokawa ,  Naoki Iwaya

IPC分类号： G03G15/20 ,  B66F19/00

CPC分类号： B66F19/00 ,  G03G15/2032 ,  G03G15/2035 ,  G03G2215/2035

摘要： A pressure adjuster for changing pressure between a plurality of opposed bodies pressed against each other includes a cam rotatable in a given direction of rotation and having a top dead center on an outer circumferential surface thereof that is distanced farthest from a rotation axis of the cam. A driver is connected to the cam to drive and rotate the cam. A cam rest contacts the cam and is connected to one of the plurality of opposed bodies. A cam regulation assembly is connected to the cam to regulate rotation of the cam at least when the top dead center of the cam passes a contact position where the cam contacts the cam rest.

摘要翻译： 用于改变彼此按压的多个相对体之间的压力的压力调节器包括可在给定旋转方向上旋转的凸轮，并且在其外圆周表面上具有距离凸轮的旋转轴线最远的上止点。 驱动器连接到凸轮以驱动并旋转凸轮。 凸轮支架接触凸轮并且连接到多个相对体中的一个。 凸轮调节组件连接到凸轮以至少当凸轮的上止点通过凸轮接触凸轮支架的接触位置时调节凸轮的旋转。

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。

公开(公告)号：US20140341623A1

公开(公告)日：2014-11-20

申请号：US14267097

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 ,  Yoshio Hattori

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 ,  Yoshio Hattori

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, a heater disposed opposite the fixing rotator to heat the fixing rotator, and an opposed rotator contacting an outer circumferential surface of the fixing rotator. A heat shield interposed between the heater and the fixing rotator shields the fixing rotator from the heater. A support supports the heat shield. The heat shield includes a first section supported by the support and having a decreased thermal conductivity and a second section abutting the first section in an axial direction of the heat shield and having an increased thermal conductivity greater than the decreased thermal conductivity of the first section.

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，与定影旋转体相对设置的加热器，用于加热定影旋转体，以及与定影旋转体的外圆周表面接触的相对旋转体。 插入在加热器和定影旋转器之间的隔热罩将固定旋转器从加热器屏蔽。 支架支撑隔热罩。 隔热罩包括由支撑件支撑并且具有降低的热导率的第一部分和在隔热板的轴向方向上邻接第一部分并且具有大于第一部分的降低的热导率的增加的热导率的第二部分。

公开(公告)号：US20140270832A1

公开(公告)日：2014-09-18

申请号：US14161662

申请日：2014-01-22

申请人： Kazuya Saito ,  Takayuki Seki ,  Yuji Arai ,  Ryuuichi Mimbu ,  Yoshiki Yamaguchi ,  Shuntaro Tamaki ,  Toshihiko Shimokawa ,  Hiroshi Yoshinaga ,  Yutaka Ikebuchi ,  Shuutaroh Yuasa

发明人： Kazuya Saito ,  Takayuki Seki ,  Yuji Arai ,  Ryuuichi Mimbu ,  Yoshiki Yamaguchi ,  Shuntaro Tamaki ,  Toshihiko Shimokawa ,  Hiroshi Yoshinaga ,  Yutaka Ikebuchi ,  Shuutaroh Yuasa

IPC分类号： G03G15/20

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

摘要： A fixing device includes a fixing rotary body rotatable in a predetermined direction of rotation and a heater disposed opposite and heating the fixing rotary body. An opposed body contacts the fixing rotary body with releasable pressure therebetween to form a fixing nip therebetween through which a recording medium is conveyed. A heat shield is interposed between the heater and the fixing rotary body and movable in a circumferential direction of the fixing rotary body between a home position where the heat shield is disposed opposite the heater indirectly and a shield position where the heat shield is disposed opposite the heater directly to shield the fixing rotary body from the heater. A controller is operatively connected to the heat shield to move the heat shield to the home position when a print job is finished.

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体和与该固定旋转体相对地加热的加热器。 相对的身体与固定旋转体接触，其间具有可释放的压力，以在其间输送定影夹持物，通过该定影夹持物传送记录介质。 加热器和固定旋转体之间设置有隔热罩，并且能够在固定旋转体的圆周方向上在隔热件间隔设置的原始位置与隔热件相对设置的屏蔽位置 加热器直接将加热器的固定旋转体屏蔽。 当打印作业完成时，控制器可操作地连接到隔热罩以将隔热板移动到原始位置。

公开(公告)号：US09727011B2

公开(公告)日：2017-08-08

申请号：US15216863

申请日：2016-07-22

申请人： Yutaka Ikebuchi ,  Hiroshi Yoshinaga ,  Takayuki Seki ,  Yuji Arai ,  Ryuuichi Mimbu ,  Shuntaro Tamaki ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Toshihiko Shimokawa ,  Masaaki Yoshikawa ,  Toshiharu Hachisuka

发明人： Yutaka Ikebuchi ,  Hiroshi Yoshinaga ,  Takayuki Seki ,  Yuji Arai ,  Ryuuichi Mimbu ,  Shuntaro Tamaki ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Toshihiko Shimokawa ,  Masaaki Yoshikawa ,  Toshiharu Hachisuka

IPC分类号： G03G15/20 ,  G03G15/00

CPC分类号： G03G15/2039 ,  G03G15/2042 ,  G03G15/205 ,  G03G15/80 ,  G03G2215/2035

摘要： An image forming apparatus includes a first heater disposed opposite and heating at least a center of a fixing belt in an axial direction thereof and a second heater disposed opposite and heating at least a lateral end of the fixing belt in the axial direction thereof. A power supply supplies power to the first heater and the second heater. A controller that controls the power supply includes a calculator to calculate an elapsed time elapsed after at least one of the first heater and the second heater starts heating the fixing belt. The controller controls the power supply to supply power to the first heater and the second heater such that a power density of the second heater is greater than a power density of the first heater when the elapsed time calculated by the calculator is smaller than a predetermined time.

公开(公告)号：US09448514B2

公开(公告)日：2016-09-20

申请号：US14564291

申请日：2014-12-09

申请人： Yutaka Ikebuchi ,  Hiroshi Yoshinaga ,  Takayuki Seki ,  Yuji Arai ,  Ryuuichi Mimbu ,  Shuntaro Tamaki ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Toshihiko Shimokawa ,  Masaaki Yoshikawa ,  Toshiharu Hachisuka

发明人： Yutaka Ikebuchi ,  Hiroshi Yoshinaga ,  Takayuki Seki ,  Yuji Arai ,  Ryuuichi Mimbu ,  Shuntaro Tamaki ,  Kazuya Saito ,  Shuutaroh Yuasa ,  Toshihiko Shimokawa ,  Masaaki Yoshikawa ,  Toshiharu Hachisuka

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/2042 ,  G03G15/205 ,  G03G15/80 ,  G03G2215/2035

摘要： An image forming apparatus includes a first heater disposed opposite and heating at least a center of a fixing belt in an axial direction thereof and a second heater disposed opposite and heating at least a lateral end of the fixing belt in the axial direction thereof. A power supply supplies power to the first heater and the second heater. A controller that controls the power supply includes a calculator to calculate an elapsed time elapsed after at least one of the first heater and the second heater starts heating the fixing belt. The controller controls the power supply to supply power to the first heater and the second heater such that a power density of the second heater is greater than a power density of the first heater when the elapsed time calculated by the calculator is smaller than a predetermined time.

摘要翻译： 图像形成装置包括：第一加热器，其相对设置并至少加热定影带的沿其轴向的中心;以及第二加热器，其相对设置并加热定影带的轴向的至少一个侧端。 电源为第一加热器和第二加热器供电。 控制电源的控制器包括计算器，用于计算在第一加热器和第二加热器中的至少一个开始加热定影带之后经过的经过时间。 控制器控制电源以向第一加热器和第二加热器供电，使得当由计算器计算的经过时间小于预定时间时，第二加热器的功率密度大于第一加热器的功率密度 。