公开(公告)号：US07796933B2

公开(公告)日：2010-09-14

申请号：US12076696

申请日：2008-03-21

申请人： Satoshi Ueno ,  Kenji Ishii ,  Tadashi Ogawa ,  Akiko Ito ,  Hiroshi Seo

发明人： Satoshi Ueno ,  Kenji Ishii ,  Tadashi Ogawa ,  Akiko Ito ,  Hiroshi Seo

IPC分类号： G03G15/20

CPC分类号： G03G15/2007 ,  G03G15/2053

摘要： An image forming apparatus includes a fixing device to fix a toner image on a recording medium by applying heat. Such a fixing device includes at least a magnetic flux generator, a heat generating roller, a magnetic shunt layer, and a protective layer. The magnetic flux generator is configured to generate magnetic flux. The heat generating roller including a heat generating layer is configured to generate heat by the magnetic flux. The magnetic shunt layer may be formed independently of the heat generating layer. The protective layer is provided on an inner surface of the magnetic shunt layer and configured to cover a crack formed in the magnetic shunt layer during fabrication of the magnetic shunt layer. An image is fixed onto the recording medium by the heat from the heat generating roller. Alternatively, the magnetic shunt layer may be integrally provided with the heat generating layer.

摘要翻译： 图像形成装置包括通过施加热量将调色剂图像定影在记录介质上的定影装置。 这种定影装置至少包括磁通量发生器，发热辊，磁分流层和保护层。 磁通发生器被配置为产生磁通量。 包括发热层的发热辊被配置为通过磁通产生热量。 磁分路层可以独立于发热层形成。 保护层设置在磁分路层的内表面上，并且构造成在制造磁分路器层期间覆盖形成在磁分路层中的裂纹。 通过来自发热辊的热将图像固定在记录介质上。 或者，磁分路层可以与发热层一体地设置。

公开(公告)号：US20070280754A1

公开(公告)日：2007-12-06

申请号：US11806748

申请日：2007-06-04

申请人： Tadashi Ogawa ,  Toshiaki Higaya ,  Hiroshi Seo ,  Akiko Ito

发明人： Tadashi Ogawa ,  Toshiaki Higaya ,  Hiroshi Seo ,  Akiko Ito

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G2215/00151 ,  G03G2215/2016 ,  G03G2215/2025

摘要： A fixing device includes a fixing sleeve, a cylindrical fixing roller, and a pressure roller. The fixing sleeve includes a heating layer that generates heat to fuse and fix toner. The fixing roller has a surface covered with the fixing sleeve. The pressure roller presses the fixing roller via the fixing sleeve to form a nip portion. The fixing sleeve is freely rotatable with respect to the fixing roller, and is slid for rotation.

摘要翻译： 定影装置包括定影套筒，圆柱形定影辊和压力辊。 定影套筒包括产生热量以熔化并固定调色剂的加热层。 定影辊具有被定影套筒覆盖的表面。 压力辊经由定影套筒按压定影辊以形成压合部。 固定套可相对于定影辊自由旋转，并滑动旋转。

公开(公告)号：US20070242988A1

公开(公告)日：2007-10-18

申请号：US11785271

申请日：2007-04-17

申请人： Hiroshi Seo ,  Akiko Ito ,  Tadashi Ogawa ,  Toshiaki Higaya

发明人： Hiroshi Seo ,  Akiko Ito ,  Tadashi Ogawa ,  Toshiaki Higaya

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2032

摘要： An image forming apparatus includes an image carrier to carry a toner image and a fixing device to fix the toner image transferred from the image carrier onto a recording medium by applying at least heat to at least one of the toner image and the recording medium. Such a fixing device includes: a magnetic flux generator to generate a magnetic flux; and a heat generating member disposed at least partially in the magnetic flux. The heat generating member includes a heat generating layer to generate heat via eddy currents therein induced by the magnetic flux, magnitudes of the eddy currents varying according to positions thereof in a width direction of the heat generating layer. Included within the heat generating layer is a magnetic layer having a Curie point in a range, e.g., from about 100 degrees centigrade to about 300 degrees centigrade.

摘要翻译： 图像形成装置包括用于承载调色剂图像的图像载体和定影装置，用于通过至少向其中一个调色剂图像和记录介质施加热量将从图像载体转印的调色剂图像定影到记录介质上。 这种定影装置包括：磁通发生器，用于产生磁通量; 以及至少部分地设置在所述磁通中的发热部件。 发热元件包括通过其中由磁通引起的涡流产生热的发热层，涡流的大小根据其在发热层的宽度方向上的位置而变化。 包含在发热层内的是磁性层，其居里点在例如约100摄氏度至约300摄氏度的范围内。

公开(公告)号：US20070212089A1

公开(公告)日：2007-09-13

申请号：US11685504

申请日：2007-03-13

申请人： Hiroshi Seo ,  Akiko Ito ,  Tadashi Ogawa ,  Toshiaki Higaya

发明人： Hiroshi Seo ,  Akiko Ito ,  Tadashi Ogawa ,  Toshiaki Higaya

IPC分类号： G03G15/06

CPC分类号： G03G15/206 ,  G03G2215/00151 ,  G03G2215/20

摘要： A fixer configured to fix an image on an recording medium passing through a fixing nip includes a holder including an elastic layer, a fixing rotator including a heating layer, provided overlying the holder, and a pressurizer configured to pressurize the holder via the fixing rotator to form the fixing nip. A part of the pressurizer, which forms the fixing nip, has a length not less than a length of the heating layer in a width direction perpendicular to a conveyance direction of the recording medium.

摘要翻译： 构造成将图像定影在通过定影辊隙的记录介质上的定影器包括：包括弹性层的保持器，设置在保持器上方的包括加热层的定影旋转器，以及经由定影旋转器对保持器加压的加压器， 形成定影辊隙。 形成定影辊隙的加压器的一部分的长度不小于与记录介质的输送方向垂直的宽度方向上的加热层的长度。

公开(公告)号：US07778581B2

公开(公告)日：2010-08-17

申请号：US11831013

申请日：2007-07-31

申请人： Hiroshi Seo ,  Akiko Ito ,  Tadashi Ogawa

发明人： Hiroshi Seo ,  Akiko Ito ,  Tadashi Ogawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2014

摘要： A fixing unit includes: a shaft; a heatable rotating member, mounted for rotation on the shaft, for fixing an image on a recording medium, the heatable rotating member having a heat generating layer heatable via a magnetic flux; a magnetic flux generator configured to generate the magnetic flux, the magnetic flux generator being provided proximal to the heatable rotating member; and a supporting frame having a shaft supporter configured to support an end of the shaft on which the heatable rotating member is mounted, the shaft supporter being positioned outside of an end portion of the magnetic flux generator.

摘要翻译： 固定单元包括：轴; 一个可加热旋转构件，安装成用于在轴上旋转，用于将图像定影在记录介质上，该可加热旋转构件具有可通过磁通量加热的发热层; 磁通发生器，其被配置为产生磁通量，所述磁通发生器设置在所述可加热旋转构件的近侧; 以及支撑框架，其具有构造成支撑安装有可加热旋转构件的轴的端部的轴支撑件，所述轴支撑件位于磁通发生器的端部的外侧。

公开(公告)号：US20080219721A1

公开(公告)日：2008-09-11

申请号：US12071981

申请日：2008-02-28

申请人： Akiko Ito ,  Kenji Ishii ,  Tadashi Ogawa ,  Satoshi Ueno ,  Hiroshi Seo

发明人： Akiko Ito ,  Kenji Ishii ,  Tadashi Ogawa ,  Satoshi Ueno ,  Hiroshi Seo

IPC分类号： G03G15/20

CPC分类号： G03G15/20 ,  G03G15/2042

摘要： A fixing device includes a magnetic flux generator, a rotating heat generation member, a magnetic flux adjuster, and a driver. The magnetic flux generator generates a magnetic flux. The rotating heat generation member rotates and applies heat to a recording medium bearing an image, and includes a heat-generating layer to generate heat using the magnetic flux generated by the magnetic flux generator. The magnetic flux adjuster is provided outside the rotating heat generation member, and decreases the magnetic flux applied to the heat-generating layer at least in a desired area in an axial direction of the rotating heat generation member. The driver changes the desired area by driving the magnetic flux adjuster in a direction of rotation of the rotating heat generation member.

摘要翻译： 定影装置包括磁通发生器，旋转发热构件，磁通量调节器和驱动器。 磁通发生器产生磁通量。 旋转发热部件旋转并向承载图像的记录介质施加热量，并且包括使用由磁通发生器产生的磁通量产生热量的发热层。 所述磁通量调节器设置在所述旋转发热体的外侧，并且至少在所述旋转发热体的轴向的期望的区域内减少施加于所述发热层的磁通量。 驱动器通过沿着旋转的发热构件的旋转方向驱动磁通量调节器来改变所需的面积。

公开(公告)号：US08112023B2

公开(公告)日：2012-02-07

申请号：US12926975

申请日：2010-12-21

申请人： Hiroshi Seo ,  Akiko Ito ,  Tadashi Ogawa ,  Toshiaki Higaya

发明人： Hiroshi Seo ,  Akiko Ito ,  Tadashi Ogawa ,  Toshiaki Higaya

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2032

摘要： An image forming apparatus includes an image carrier to carry a toner image and a fixing device to fix the toner image transferred from the image carrier onto a recording medium by applying at least heat to at least one of the toner image and the recording medium. Such a fixing device includes: a magnetic flux generator to generate a magnetic flux; and a heat generating member disposed at least partially in the magnetic flux. The heat generating member includes a heat generating layer to generate heat via eddy currents therein induced by the magnetic flux, magnitudes of the eddy currents varying according to positions thereof in a width direction of the heat generating layer. Included within the heat generating layer is a magnetic layer having a Curie point in a range, e.g., from about 100 degrees centigrade to about 300 degrees centigrade.

摘要翻译： 图像形成装置包括用于承载调色剂图像的图像载体和定影装置，用于通过至少向其中一个调色剂图像和记录介质施加热量将从图像载体转印的调色剂图像定影到记录介质上。 这种定影装置包括：磁通发生器，用于产生磁通量; 以及至少部分地设置在所述磁通中的发热部件。 发热元件包括通过其中由磁通引起的涡流产生热的发热层，涡流的大小根据其在发热层的宽度方向上的位置而变化。 包含在发热层内的是磁性层，其居里点在例如约100摄氏度至约300摄氏度的范围内。

公开(公告)号：US08014711B2

公开(公告)日：2011-09-06

申请号：US11882158

申请日：2007-07-31

申请人： Akiko Ito ,  Tadashi Ogawa ,  Hiroshi Seo

发明人： Akiko Ito ,  Tadashi Ogawa ,  Hiroshi Seo

IPC分类号： G03G15/16 ,  G03G15/20 ,  H05B11/20 ,  H05G6/12

CPC分类号： G03G15/2053 ,  G03G15/2007 ,  G03G15/2039 ,  G03G2215/2048

摘要： A fixing unit includes a rotatable fixing member and a rotatable pressure applying member. The rotatable fixing member has a heat generating layer to generate heat when subject to a magnetic flux. The rotatable pressure applying member contacts the rotatable fixing member and applies pressure to the fixing member. The rotatable fixing member and the rotatable pressure applying member form a nip therebetween, to which a recording medium is passed through to fix an image on the recording medium. The rotatable fixing member includes a magnetism regulating layer deformable when subject to pressure from the rotatable pressure applying member.

摘要翻译： 固定单元包括可旋转的固定构件和可旋转的压力施加构件。 可旋转的固定构件具有发热层，以在受到磁通时产生热量。 可旋转的压力施加构件接触可转动的固定构件并向固定构件施加压力。 可旋转的固定构件和可旋转的压力施加构件在它们之间形成辊隙，记录介质通过该压区将图像固定在记录介质上。 可旋转固定构件包括当受到来自可旋转压力施加构件的压力时可变形的磁调节层。

公开(公告)号：US20110091253A1

公开(公告)日：2011-04-21

申请号：US12926975

申请日：2010-12-21

申请人： Hiroshi Seo ,  Akiko Ito ,  Tadashi Ogawa ,  Toshiaki Higaya

发明人： Hiroshi Seo ,  Akiko Ito ,  Tadashi Ogawa ,  Toshiaki Higaya

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2032

摘要： An image forming apparatus includes an image carrier to carry a toner image and a fixing device to fix the toner image transferred from the image carrier onto a recording medium by applying at least heat to at least one of the toner image and the recording medium. Such a fixing device includes: a magnetic flux generator to generate a magnetic flux; and a heat generating member disposed at least partially in the magnetic flux. The heat generating member includes a heat generating layer to generate heat via eddy currents therein induced by the magnetic flux, magnitudes of the eddy currents varying according to positions thereof in a width direction of the heat generating layer. Included within the heat generating layer is a magnetic layer having a Curie point in a range, e.g., from about 100 degrees centigrade to about 300 degrees centigrade.

摘要翻译： 图像形成装置包括用于承载调色剂图像的图像载体和定影装置，用于通过至少向其中一个调色剂图像和记录介质施加热量将从图像载体转印的调色剂图像定影到记录介质上。 这种定影装置包括：磁通发生器，用于产生磁通量; 以及至少部分地设置在所述磁通中的发热部件。 发热元件包括通过其中由磁通引起的涡流产生热的发热层，涡流的大小根据其在发热层的宽度方向上的位置而变化。 包含在发热层内的是磁性层，其居里点在例如约100摄氏度至约300摄氏度的范围内。

公开(公告)号：US07885590B2

公开(公告)日：2011-02-08

申请号：US11785271

申请日：2007-04-17

申请人： Hiroshi Seo ,  Akiko Ito ,  Tadashi Ogawa ,  Toshiaki Higaya

发明人： Hiroshi Seo ,  Akiko Ito ,  Tadashi Ogawa ,  Toshiaki Higaya

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2032

摘要： An image forming apparatus includes an image carrier to carry a toner image and a fixing device to fix the toner image transferred from the image carrier onto a recording medium by applying at least heat to at least one of the toner image and the recording medium. Such a fixing device includes: a magnetic flux generator to generate a magnetic flux; and a heat generating member disposed at least partially in the magnetic flux. The heat generating member includes a heat generating layer to generate heat via eddy currents therein induced by the magnetic flux, magnitudes of the eddy currents varying according to positions thereof in a width direction of the heat generating layer. Included within the heat generating layer is a magnetic layer having a Curie point in a range, e.g., from about 100 degrees centigrade to about 300 degrees centigrade.