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：US08543046B2

公开(公告)日：2013-09-24

申请号：US13161929

申请日：2011-06-16

申请人： Hiroshi Seo ,  Masanao Ehara ,  Tadashi Ogawa ,  Satoshi Ueno ,  Shuutaroh Yuasa

发明人： Hiroshi Seo ,  Masanao Ehara ,  Tadashi Ogawa ,  Satoshi Ueno ,  Shuutaroh Yuasa

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2032

摘要： A fixing device includes a fixing rotary body to rotate in a predetermined direction of rotation and a pressing rotary body pressed against the fixing rotary body to rotate in a direction counter to the direction of rotation of the fixing rotary body and form a nip therebetween through which a recording medium bearing a toner image passes. A heat generator is disposed opposite the fixing rotary body at a section other than the nip to heat the fixing rotary body. A moving assembly is disposed opposite the heat generator to generate a magnetic force to move the heat generator with respect to the fixing rotary body so as to change one of a pressure and a distance between the heat generator and the fixing rotary body.

摘要翻译： 定影装置包括：固定旋转体，其沿预定旋转方向旋转;以及按压旋转体，其按压在定影旋转体上，以沿与定影旋转体的旋转方向相反的方向旋转， 携带调色剂图像的记录介质通过。 热交换器在固定旋转体的与辊隙以外的部分相对地设置，以加热定影旋转体。 移动组件相对于发热器设置以产生磁力，以使热发生器相对于定影旋转体移动，以便改变发热体和固定旋转体之间的压力和距离之一。

公开(公告)号：US20110311284A1

公开(公告)日：2011-12-22

申请号：US13161929

申请日：2011-06-16

申请人： Hiroshi Seo ,  Masanao Ehara ,  Tadashi Ogawa ,  Satoshi Ueno ,  Shuutaroh Yuasa

发明人： Hiroshi Seo ,  Masanao Ehara ,  Tadashi Ogawa ,  Satoshi Ueno ,  Shuutaroh Yuasa

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2032

摘要： A fixing device includes a fixing rotary body to rotate in a predetermined direction of rotation and a pressing rotary body pressed against the fixing rotary body to rotate in a direction counter to the direction of rotation of the fixing rotary body and form a nip therebetween through which a recording medium bearing a toner image passes. A heat generator is disposed opposite the fixing rotary body at a section other than the nip to heat the fixing rotary body. A moving assembly is disposed opposite the heat generator to generate a magnetic force to move the heat generator with respect to the fixing rotary body so as to change one of a pressure and a distance between the heat generator and the fixing rotary body.

摘要翻译： 定影装置包括：固定旋转体，其沿预定旋转方向旋转;以及按压旋转体，其按压在定影旋转体上，以沿与定影旋转体的旋转方向相反的方向旋转， 携带调色剂图像的记录介质通过。 热交换器在固定旋转体的与辊隙以外的部分相对地设置，以加热定影旋转体。 移动组件相对于发热器设置以产生磁力，以使热发生器相对于定影旋转体移动，以便改变发热体和固定旋转体之间的压力和距离之一。

公开(公告)号：US20110229162A1

公开(公告)日：2011-09-22

申请号：US13064201

申请日：2011-03-10

申请人： Tadashi Ogawa ,  Masanao Ehara ,  Satoshi Ueno ,  Hiroshi Seo ,  Takamasa Hase ,  Shuutaroh Yuasa

发明人： Tadashi Ogawa ,  Masanao Ehara ,  Satoshi Ueno ,  Hiroshi Seo ,  Takamasa Hase ,  Shuutaroh Yuasa

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A fixing device includes a fixing member, an induction heating unit, a pressing member, and a damage detection unit. The fixing member heats a toner image on a recording medium to fix the toner image onto the recording medium. The induction heating unit heats the fixing member by electromagnetic induction. The pressing member presses the fixing member to form a fixing nip portion. The fixing member includes a heat insulating elastic layer and a sleeve layer. The sleeve layer is located outside the heat insulating elastic layer and is provided with an outer conductive layer that generates heat from a magnetic flux generated by the induction heating unit. The damage detection unit is connected to the outer, conductive layer.

摘要翻译： 定影装置包括固定构件，感应加热单元，按压构件和损伤检测单元。 定影构件加热记录介质上的调色剂图像以将调色剂图像定影到记录介质上。 感应加热单元通过电磁感应加热固定部件。 按压构件按压固定构件以形成定影夹持部。 固定构件包括绝热弹性层和套筒层。 套筒层位于绝热弹性层的外侧，并且设置有由感应加热单元产生的磁通产生热的外部导电层。 损伤检测单元连接到外导电层。

公开(公告)号：US07801457B2

公开(公告)日：2010-09-21

申请号：US12073910

申请日：2008-03-12

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

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

IPC分类号： G03G15/20

CPC分类号： H05B6/145 ,  G03G15/2042

摘要： A fixing device includes an excitation coil, a heat-generating layer, a magnetic shunt layer, and a degaussing member. The excitation coil generates a magnetic flux. The heat-generating layer generates heat using the magnetic flux generated by the excitation coil. The magnetic shunt layer transmits heat generated by the heat-generating layer. The degaussing member sandwiches the magnetic shunt layer together with the excitation coil, and selectively performs degaussing by generating a repelling magnetic flux for canceling the magnetic flux generated by the excitation coil so as to activate a self-temperature-control function. The degaussing member selectively refrains from degaussing so as to deactivate the self-temperature-control function.

摘要翻译： 固定装置包括励磁线圈，发热层，磁分路层和消磁部件。 励磁线圈产生磁通量。 发热层利用由励磁线圈产生的磁通量产生热量。 磁分流层传输由发热层产生的热量。 消磁部件与励磁线圈一起夹持磁分路层，并且通过产生用于抵消由励磁线圈产生的磁通量的排斥磁通来选择性地进行消磁以激活自温度控制功能。 消磁部件选择性地防止消磁，从而使自身温度控制功能失效。

公开(公告)号：US07783240B2

公开(公告)日：2010-08-24

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：US20080232873A1

公开(公告)日：2008-09-25

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：US20080025773A1

公开(公告)日：2008-01-31

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： G03G15/20

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：US08755733B2

公开(公告)日：2014-06-17

申请号：US13049181

申请日：2011-03-16

申请人： Masanao Ehara ,  Tadashi Ogawa ,  Satoshi Ueno ,  Hiroshi Seo ,  Shuutaroh Yuasa

发明人： Masanao Ehara ,  Tadashi Ogawa ,  Satoshi Ueno ,  Hiroshi Seo ,  Shuutaroh Yuasa

IPC分类号： G03G15/00

CPC分类号： G03G15/205 ,  G03G15/2028 ,  G03G15/2042

摘要： A fixing device in an image forming apparatus includes a conveyance member to convey a recording medium at a fixing nip where an image carried on the recording medium is fixed onto it; a plurality of temperature detectors to detect temperature of the conveyance member, the detectors being disposed at both end portions of the conveyance member outside an area where a maximum-sided recording medium passes through; a guide member to guide the recording medium toward the fixing nip; and a guide plate displacing unit to displace a part of the guide member in a direction orthogonal to a conveyed surface of the recording medium to be conveyed at the fixing nip, based on temperature difference detected by the plurality of temperature detectors.

摘要翻译： 图像形成装置中的定影装置包括传送构件，用于在记录介质上承载的图像被固定在其上的定影辊隙处传送记录介质; 多个温度检测器，用于检测输送部件的温度，检测器设置在输送部件的两侧的最外侧记录介质通过的区域的外侧; 引导构件，用于将记录介质引向定影辊隙; 以及引导板移位单元，用于基于由多个温度检测器检测到的温度差，在与所述定影辊隙处要传送的记录介质的传送表面正交的方向上移位所述引导构件的一部分。

公开(公告)号：US08706016B2

公开(公告)日：2014-04-22

申请号：US12923272

申请日：2010-09-13

申请人： Takahiro Imada ,  Masanao Ehara ,  Tadashi Ogawa ,  Satoshi Ueno ,  Hiroshi Seo ,  Takamasa Hase ,  Kenji Ishi

发明人： Takahiro Imada ,  Masanao Ehara ,  Tadashi Ogawa ,  Satoshi Ueno ,  Hiroshi Seo ,  Takamasa Hase ,  Kenji Ishi

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/206 ,  G03G2215/2048

摘要： An elastic layer is provided on a surface of one of a metal core and a substrate. A fixing member and a pressure member press into each other and collectively create a nip therebetween. A toner image is conveyed and fixed when passing through the nip. A thickness of the elastic layer is different in at least two widthwise regions by the same amount from the other region. A pair of edges of a prescribed size of the transfer sheet pass through these two widthwise regions, respectively.

摘要翻译： 弹性层设置在金属芯和基板之一的表面上。 固定构件和压力构件彼此挤压并且在它们之间共同形成辊隙。 调色剂图像在通过辊隙时被传送和固定。 弹性层的厚度在至少两个宽度方向上与其他区域相同的量不同。 转印纸的规定尺寸的一对边缘分别通过这两个横向区域。