公开(公告)号：US08346117B2

公开(公告)日：2013-01-01

申请号：US12923032

申请日：2010-08-30

申请人： Kenji Ishii ,  Tadashi Ogawa ,  Satoshi Ueno ,  Hiroshi Seo ,  Masanao Ehara

发明人： Kenji Ishii ,  Tadashi Ogawa ,  Satoshi Ueno ,  Hiroshi Seo ,  Masanao Ehara

IPC分类号： G03G21/00

CPC分类号： G03G15/2025 ,  G03G15/2028 ,  G03G2221/1639

摘要： A fixing device includes a heating source; a heating member heated by the heating source; a pressing member contacting the heating member to form a fixing nip therebetween, at which an unfixed image of toner on a recording sheet is fixed to the recording sheet; a first charging member located at an entrance of the fixing device, from which the recording sheet bearing the unfixed toner image enters the fixing device, so as to face the unfixed toner image. The first charging member is not contacted with the heating member and pressing member, and has a charge with a polarity opposite to a polarity of a charge of the toner to collect floating particles of the toner.

摘要翻译： 定影装置包括加热源; 由加热源加热的加热构件; 与所述加热构件接触以在其间形成定影夹持部的按压构件，将记录片材上的调色剂的未定影图像固定在所述记录片材上; 位于定影装置的入口处的第一充电构件，承载未定影调色剂图像的记录片材从该第一充电构件进入定影装置，以面对未定影的调色剂图像。 第一充电构件不与加热构件和按压构件接触，并且具有与调色剂的电荷的极性相反的极性的电荷，以收集调色剂的浮动颗粒。

公开(公告)号：US20110229236A1

公开(公告)日：2011-09-22

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，在与定影夹持部上要传送的记录介质的传送表面正交的方向上移动引导部件的一部分。

公开(公告)号：US20110064490A1

公开(公告)日：2011-03-17

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。

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：US07734208B2

公开(公告)日：2010-06-08

申请号：US11518350

申请日：2006-09-11

申请人： Hiroshi Seo ,  Tadashi Ogawa ,  Motokazu Yasui ,  Hiroshi Koide

发明人： Hiroshi Seo ,  Tadashi Ogawa ,  Motokazu Yasui ,  Hiroshi Koide

IPC分类号： G03G15/20 ,  G03G21/20

CPC分类号： G03G15/2039

摘要： An image fixing apparatus controls temperature of a rotating member for fixing with compensation for delay by using a Smith predictor with a controlled object model to reduce temperature ripple effectively. In one example, the image fixing apparatus includes a pair of rotating members to form a nip portion, a heater to heat the rotating member, a temperature sensor to detect temperature of the rotating member, a calculator to calculate a heat value to attain a target temperature of the rotating member, a controller to control the heater based on a calculation result of the heat value with compensation for delay using a model according to the calculation result, and a selector to select a control in which an output of the compensation is input into the calculator or a control in which the output of the compensation is not input into the calculator.

摘要翻译： 图像定影装置通过使用具有受控对象模型的史密斯预测器来有效地降低温度波动来控制用于定影的旋转构件的温度，以补偿延迟。 在一个示例中，图像定影设备包括一对旋转构件以形成夹持部，用于加热旋转构件的加热器，用于检测旋转构件的温度的温度传感器，用于计算获得目标的热值的计算器 旋转构件的温度，使用根据计算结果的模型基于热值补偿计算结果来控制加热器的控制器，以及选择器，其选择输入补偿的控制 进入计算器或其中补偿的输出未被输入到计算器的控制。

公开(公告)号：US07693439B2

公开(公告)日：2010-04-06

申请号：US11802938

申请日：2007-05-29

申请人： Hiroshi Seo ,  Motokazu Yasui ,  Tadashi Ogawa ,  Hiroshi Koide

发明人： Hiroshi Seo ,  Motokazu Yasui ,  Tadashi Ogawa ,  Hiroshi Koide

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G2215/2016 ,  G03G2215/2032 ,  G05D23/1913 ,  G05D23/24

摘要： A fixing device includes a pair of rotating members, a heater, a detector, a calculator, a pulse width modulation circuit, and a controller. In at least one embodiment, the pair of rotating members is configured to fix a toner image on a recording medium. The heater is configured to heat at least one of the pair of rotating members to a process temperature when driven with an alternating current. The detector is configured to detect the process temperature. The calculator is configured to calculate an amount of heat to adjust the process temperature to a reference temperature. The pulse width modulation circuit is configured to generate a drive signal having a pulse width modulation cycle divided into first and second off times and an on time inserted therebetween. The controller is configured to control operation of the heater according to the drive signal.

摘要翻译： 定影装置包括一对旋转构件，加热器，检测器，计算器，脉宽调制电路和控制器。 在至少一个实施例中，一对旋转构件被配置为将调色剂图像固定在记录介质上。 加热器被配置为当用交流电驱动时将一对旋转构件中的至少一个加热到过程温度。 检测器被配置为检测过程温度。 计算器被配置为计算热量以将过程温度调节到参考温度。 脉冲宽度调制电路被配置为产生具有被分成第一和第二关闭时间的脉冲宽度调制周期的驱动信号，并且插入其间的接通时间。 控制器被配置为根据驱动信号控制加热器的操作。

公开(公告)号：US20070059011A1

公开(公告)日：2007-03-15

申请号：US11518350

申请日：2006-09-11

申请人： Hiroshi Seo ,  Tadashi Ogawa ,  Motokazu Yasui ,  Hiroshi Koide

发明人： Hiroshi Seo ,  Tadashi Ogawa ,  Motokazu Yasui ,  Hiroshi Koide

IPC分类号： G03G15/20

CPC分类号： G03G15/2039

摘要： An image fixing apparatus controls temperature of a rotating member for fixing with compensation for delay by using a Smith predictor with a controlled object model to reduce temperature ripple effectively. In one example, the image fixing apparatus includes a pair of rotating members to form a nip portion, a heater to heat the rotating member, a temperature sensor to detect temperature of the rotating member, a calculator to calculate a heat value to attain a target temperature of the rotating member, a controller to control the heater based on a calculation result of the heat value with compensation for delay using a model according to the calculation result, and a selector to select a control in which an output of the compensation is input into the calculator or a control in which the output of the compensation is not input into the calculator.

摘要翻译： 图像定影装置通过使用具有受控对象模型的史密斯预测器来有效地降低温度波动来控制用于定影的旋转构件的温度，以补偿延迟。 在一个示例中，图像定影设备包括一对旋转构件以形成夹持部，用于加热旋转构件的加热器，用于检测旋转构件的温度的温度传感器，用于计算获得目标的热值的计算器 旋转构件的温度，使用根据计算结果的模型基于热值补偿计算结果来控制加热器的控制器，以及选择器，其选择输入补偿的控制 进入计算器或其中补偿的输出未被输入到计算器的控制。

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。