公开(公告)号：US20080044196A1

公开(公告)日：2008-02-21

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： 固定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：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：US08811842B2

公开(公告)日：2014-08-19

申请号：US12974852

申请日：2010-12-21

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G2215/2048

摘要： The fixing device using an electromagnetic induction heating (IH) method includes a fixing sleeve having a heating layer, a pressure roller to form a nip while contacting the fixing roller and rotate to drive the fixing sleeve, a temperature detector to detect a temperature on a circumference of the fixing sleeve, and an excitation coil provided near the fixing sleeve and configured to perform induction heating of the heating layer of the fixing sleeve based on the detection result from the temperature detector. The fixing device is configured to change a rotation speed of the fixing sleeve in a standby time during which the fixing sleeve, while rotating, is controlled to be heated so as to maintain a target temperature when a periodic temperature difference occurs on a circumference of the fixing rotary member and having a fluctuation amplitude larger than a predetermined value compared to the target temperature.

摘要翻译： 使用电磁感应加热（IH）方法的定影装置包括具有加热层的定影套筒，压力辊，以在接触定影辊并旋转以驱动定影套筒的同时形成辊隙;温度检测器，用于检测 定影套筒周围，以及设置在定影套筒附近的激励线圈，其构造成基于来自温度检测器的检测结果对定影套筒的加热层进行感应加热。 定影装置构造成在待机时间内改变定影套筒的旋转速度，在该待机时间期间，当旋转时定影套筒被控制为加热，以便当在周边温度差发生周期性温度差时，保持目标温度 固定旋转构件并且具有比目标温度高的预定值的波动幅度。

公开(公告)号：US08718502B2

公开(公告)日：2014-05-06

申请号：US13366939

申请日：2012-02-06

申请人： Shuutaroh Yuasa ,  Masanao Ehara ,  Tadashi Ogawa ,  Satoshi Ueno ,  Hiroshi Seo ,  Teppei Kawata ,  Shuntaroh Tamaki ,  Takamasa Hase ,  Kazuya Saito ,  Kensuke Yamaji

发明人： Shuutaroh Yuasa ,  Masanao Ehara ,  Tadashi Ogawa ,  Satoshi Ueno ,  Hiroshi Seo ,  Teppei Kawata ,  Shuntaroh Tamaki ,  Takamasa Hase ,  Kazuya Saito ,  Kensuke Yamaji

IPC分类号： G03G15/20

CPC分类号： G03G15/2039

摘要： A fixing device includes a fixing rotary body rotatable in a predetermined direction of rotation to radiate infrared rays; a pressing rotary body, rotatable in a direction counter to the direction of rotation of the fixing rotary body, pressed against the fixing rotary body to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed; a heater disposed opposite the fixing rotary body to heat the fixing rotary body; a temperature detector spaced apart from the fixing rotary body to detect a temperature of the fixing rotary body based on the infrared rays from the fixing rotary body and disposed below the fixing nip in a vertical direction; and a tube disposed between the fixing rotary body and the temperature detector, the tube through which the infrared rays from the fixing rotary body enter the temperature detector.

摘要翻译： 定影装置包括可沿预定旋转方向旋转的固定旋转体，以便辐射红外线; 按照与固定旋转体的旋转方向相反的方向旋转的按压旋转体，压靠在定影旋转体上，以形成传送带有调色剂图像的记录介质的定影辊隙; 与所述固定旋转体相对设置的加热所述固定旋转体的加热器; 与固定旋转体间隔开的温度检测器，基于来自定影旋转体的红外线检测固定旋转体的温度，并在垂直方向上设置在定影辊隙的下方; 以及设置在固定旋转体和温度检测器之间的管，来自定影旋转体的红外线通过该管进入温度检测器。

公开(公告)号：US08588628B2

公开(公告)日：2013-11-19

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。 套筒层位于隔热弹性层的外侧，并且设置有由感应加热单元产生的磁通产生热量的外部导电层。 损伤检测单元连接到外导电层。

公开(公告)号：US20110222926A1

公开(公告)日：2011-09-15

申请号：US13064105

申请日：2011-03-07

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2028

摘要： A fixing device includes an image surface side separating member that separates a recording medium from a fixing member; an image surface side conveyance guiding member arranged downstream of the image surface side separating member; a non-image surface side separating member that separates the recording medium from a pressing member; and a non-image surface side conveyance guiding member arranged downstream of the non-image surface side separating member. When the image surface side conveyance guiding member is rotated about its rotation axis so as to be opened or closed, the image surface side separating member is also rotated or slid so as to be opened or closed simultaneously. When the non-image surface side conveyance guiding member is rotated about its rotation axis so as to be opened or closed, the non-image surface side separating member is also rotated or slid so as to be opened or closed simultaneously.

摘要翻译： 定影装置包括从记录介质与固定部件分离的图像表面侧分离部件; 图像表面侧传送引导构件，布置在图像表面侧分离构件的下游; 将记录介质从按压部件分离的非图像表面侧分离部件; 以及非图像表面侧传送引导构件，布置在非图像表面侧分离构件的下游。 当图像表面侧传送引导构件绕其旋转轴线旋转以打开或关闭时，图像表面侧分离构件也被旋转或滑动以同时打开或关闭。 当非图像表面侧传送引导构件绕其旋转轴线旋转以打开或关闭时，非图像表面侧分离构件也被旋转或滑动以同时打开或关闭。

公开(公告)号：US20110150518A1

公开(公告)日：2011-06-23

申请号：US12974852

申请日：2010-12-21

申请人： Takamasa HASE ,  Masanao Ehara ,  Kenji Ishii ,  Tadashi Ogawa ,  Satoshi Ueno ,  Hiroshi Seo ,  Takahiro Imada ,  Shuutaroh Yuasa

发明人： Takamasa HASE ,  Masanao Ehara ,  Kenji Ishii ,  Tadashi Ogawa ,  Satoshi Ueno ,  Hiroshi Seo ,  Takahiro Imada ,  Shuutaroh Yuasa

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G2215/2048

摘要： The fixing device using an electromagnetic induction heating (IH) method includes a fixing sleeve having a heating layer, a pressure roller to form a nip while contacting the fixing roller and rotate to drive the fixing sleeve, a temperature detector to detect a temperature on a circumference of the fixing sleeve, and an excitation coil provided near the fixing sleeve and configured to perform induction heating of the heating layer of the fixing sleeve based on the detection result from the temperature detector. The fixing device is configured to change a rotation speed of the fixing sleeve in a standby time during which the fixing sleeve, while rotating, is controlled to be heated so as to maintain a target temperature when a periodic temperature difference occurs on a circumference of the fixing rotary member and having a fluctuation amplitude larger than a predetermined value compared to the target temperature.

摘要翻译： 使用电磁感应加热（IH）方法的定影装置包括具有加热层的定影套筒，压力辊，以在接触定影辊并旋转以驱动定影套筒的同时形成辊隙;温度检测器，用于检测 定影套筒周围，以及设置在定影套筒附近的激励线圈，其构造成基于来自温度检测器的检测结果对定影套筒的加热层进行感应加热。 定影装置构造成在待机时间内改变定影套筒的旋转速度，在该待机时间期间，当旋转时定影套筒被控制为加热，以便当在周边温度差发生周期性温度差时，保持目标温度 固定旋转构件并且具有比目标温度高的预定值的波动幅度。

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。