公开(公告)号：US06810230B2

公开(公告)日：2004-10-26

申请号：US10130936

申请日：2002-05-24

申请人： Masaru Imai ,  Kenji Asakura ,  Hideki Tatematsu ,  Shuichi Watanabe

发明人： Masaru Imai ,  Kenji Asakura ,  Hideki Tatematsu ,  Shuichi Watanabe

IPC分类号： G03G1520

CPC分类号： H05B6/145 ,  G03G15/2042 ,  G03G2215/2016 ,  G03G2215/2032

摘要： An excitation coil is arranged so as to be opposed to a rotatable heat generating roller of a conductive material, and on a rear side of the excitation coil, a core of a magnetic material is provided. The core is composed of a central core that is formed continuously in a rotation axis direction of the heat generating roller, and a plurality of U-shaped cores arranged at a distance from each other in that direction. A high-frequency current is applied to the excitation coil so that the heat generating roller 1 generates heat by electromagnetic induction. An additional coil is wound around the U-shaped core. Both ends of the additional coil are connected to a switching unit. When the switching unit is brought to a connected state, under an induction current generated in the additional coil, a magnetic flux in a direction in which a magnetic flux of the excitation coil is cancelled out is generated, so that heat generation of the heat generating roller can be suppressed. The switching unit is switched over according to a width of a paper sheet to be passed and a temperature distribution in the rotation axis direction. Thus, a uniform temperature distribution of the heat generating roller in the rotation axis direction can be maintained.

摘要翻译： 激励线圈被布置成与导电材料的可旋转的发热辊相对，并且在励磁线圈的后侧设置有磁性材料的芯。 芯部由在发热辊的旋转轴线方向上连续形成的中心芯和沿该方向彼此间隔设置的多个U字形芯组成。 对励磁线圈施加高频电流，使得发热辊1通过电磁感应产生热量。 一个额外的线圈缠绕在U形芯上。 附加线圈的两端连接到开关单元。 当切换单元处于连接状态时，在附加线圈中产生的感应电流下，产生沿励磁线圈的磁通量抵消的方向的磁通量，从而产生发热量 辊可以抑制。 切换单元根据要通过的纸张的宽度和旋转轴方向上的温度分布而切换。 因此，可以保持发热辊在旋转轴线方向上均匀的温度分布。

公开(公告)号：US07391983B2

公开(公告)日：2008-06-24

申请号：US10566203

申请日：2004-07-29

申请人： Hideki Tatematsu ,  Kenji Asakura ,  Masaru Imai ,  Tadafumi Shimizu ,  Masahiro Samei ,  Keiichi Matsuzaki ,  Kazunori Matsuo ,  Shoichi Kitagawa

发明人： Hideki Tatematsu ,  Kenji Asakura ,  Masaru Imai ,  Tadafumi Shimizu ,  Masahiro Samei ,  Keiichi Matsuzaki ,  Kazunori Matsuo ,  Shoichi Kitagawa

IPC分类号： G03G15/20

CPC分类号： G03G15/205

摘要： The present invention relates to an image forming apparatus that enables the occurrence of print defects due to a first print start time delay to be eliminated without using a temperature sensor that has a small thermal time constant. When the temperature of a fixing belt serving as an image heating body is greater than or equal to a predetermined temperature following the elapse of a fixed time after an image forming operation is started, recording paper is transported to a nip area (fixing area) of a fixing apparatus before the temperature detected by a temperature sensor reaches a predetermined image fixing temperature, and an image forming operation is started immediately.

摘要翻译： 本发明涉及能够消除由于第一打印开始时间延迟而导致的打印缺陷的发生而不使用具有小的热时间常数的温度传感器的图像形成装置。 当作为图像加热体的定影带的温度在图像形成操作开始之后经过固定时间之后大于或等于预定温度时，记录纸被输送到 在由温度传感器检测的温度之前的定影装置达到预定的图像定影温度，并且立即开始图像形成操作。

公开(公告)号：US07062188B2

公开(公告)日：2006-06-13

申请号：US11191590

申请日：2005-07-28

申请人： Hideki Tatematsu ,  Kenji Asakura ,  Masaru Imai ,  Tadafumi Shimizu ,  Masahiro Samei ,  Keiichi Matsuzaki ,  Kazunori Matsuo ,  Shoichi Kitagawa

发明人： Hideki Tatematsu ,  Kenji Asakura ,  Masaru Imai ,  Tadafumi Shimizu ,  Masahiro Samei ,  Keiichi Matsuzaki ,  Kazunori Matsuo ,  Shoichi Kitagawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2035

摘要： An image heating device is operational to estimate a temperature of a pressure roller so as to determine a set temperature for a roller belt in a subsequent image heating period.

摘要翻译： 图像加热装置可操作以估计加压辊的温度，以便在随后的图像加热周期中确定滚筒带的设定温度。

公开(公告)号：US06678498B2

公开(公告)日：2004-01-13

申请号：US10384001

申请日：2003-03-06

申请人： Hiroshi Terada ,  Masaru Imai ,  Hideki Tatematsu ,  Akinori Toyoda ,  Kenji Asakura ,  Syuichi Watanabe

发明人： Hiroshi Terada ,  Masaru Imai ,  Hideki Tatematsu ,  Akinori Toyoda ,  Kenji Asakura ,  Syuichi Watanabe

IPC分类号： G03G1520

CPC分类号： G03G15/2053 ,  G03G15/2064 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2041 ,  H05B6/145

摘要： An image heating device having a predetermined amount of heat generation with a small electric current. The device includes a heat-generating roller (1) having magnetism and conductivity, an exciting coil (5) opposed to the peripheral face of the heat-generating roller (1) and adapted for allowing the heat-generating roller (1) to generate heat with electromagnetic induction. The exciting coil (5) is composed of a bundle of 60 copper wires of a 0.2 mm diameter are extended in the direction of the rotation axis of the heat-generating roller (1) and they are circumferentially wound along the circumferential direction of the heat-generating roller (1). The bundled wires are arranged in close contact with each other in the circumferential direction of the heat-generating roller (1) so as to cover the upper half of the heat-generating roller (1).

摘要翻译： 一种图像加热装置，具有预定量的具有小电流的发热量。 该装置包括具有磁性和导电性的发热辊（1），与发热辊（1）的周面相对的适于允许发热辊（1）产生的励磁线圈（5） 热电磁感应。 励磁线圈（5）由直径0.2mm的60根铜线束组成，沿着发热辊（1）的旋转轴线的方向延伸，并且沿着热的圆周方向周向地卷绕 发电辊（1）。 捆扎线在发热辊（1）的周向上彼此紧密接触，以覆盖发热辊（1）的上半部。

公开(公告)号：US06968137B2

公开(公告)日：2005-11-22

申请号：US10374619

申请日：2003-02-25

申请人： Hideki Tatematsu ,  Kenji Asakura ,  Masaru Imai ,  Tadafumi Shimizu ,  Masahiro Samei ,  Keiichi Matsuzaki ,  Kazunori Matsuo ,  Shoichi Kitagawa

发明人： Hideki Tatematsu ,  Kenji Asakura ,  Masaru Imai ,  Tadafumi Shimizu ,  Masahiro Samei ,  Keiichi Matsuzaki ,  Kazunori Matsuo ,  Shoichi Kitagawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2035

摘要： An image heating device is provided with reduced cost, by which a difference in glossiness among printed images on recording media is eliminated, and the wrapping of a belt and the like at a high temperature is prevented. In the image heating device, a controller estimates a temperature of a pressure roller according to at least one of a temperature of a belt detected by a temperature sensor and a variation with time in the detected temperature from completion of the heating after application of an electric power to the magnetization coil by an exciting circuit is stopped and the heating of the belt by the heating roller is stopped, so as to determine a set temperature for the belt in a subsequent image heating period.

摘要翻译： 提供了一种图像加热装置，其成本降​​低，消除了记录介质上的打印图像之间的光泽度差异，并且防止了带状物等在高温下的缠绕。 在图像加热装置中，控制器根据温度传感器检测到的带的温度和检测到的温度随着加热完成后的时间的变化中的至少一个来估计加压辊的温度 通过励磁电路对磁化线圈的动力停止，并且通过加热辊对带的加热停止，以便在随后的图像加热周期中确定带的设定温度。

公开(公告)号：US06757513B2

公开(公告)日：2004-06-29

申请号：US10384018

申请日：2003-03-06

申请人： Hiroshi Terada ,  Masaru Imai ,  Hideki Tatematsu ,  Akinori Toyoda ,  Kenji Asakura ,  Syuichi Watanabe

发明人： Hiroshi Terada ,  Masaru Imai ,  Hideki Tatematsu ,  Akinori Toyoda ,  Kenji Asakura ,  Syuichi Watanabe

IPC分类号： G03G1520

CPC分类号： G03G15/2053 ,  G03G15/2064 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2041 ,  H05B6/145

摘要： An image heating device having a predetermined amount of heat generation with a small electric current. The device comprises a heat-generating roller (1) having magnetism and conductivity, an exciting coil (5) opposed to the peripheral face of the heat-generating roller (1) and adapted for allowing the heat-generating roller (1) to generate heat with electromagnetic induction. The exciting coil (5) is composed of a bundle of 60 copper wires of a 0.2 mm diameter are extended in the direction of the rotation axis of the heat-generating roller (1) and they are circumferentially wound along the circumferential direction of the heat-generating roller (1). The bundled wires are arranged in close contact with each other in the circumferential direction of the heat-generating roller (1) so as to cover the upper half of the heat-generating roller (1).

公开(公告)号：US20060251440A1

公开(公告)日：2006-11-09

申请号：US10566203

申请日：2004-07-29

申请人： Hideki Tatematsu ,  Kenji Asakura ,  Masaru Imai ,  Tadafumi Shimizu ,  Masahiro Samei ,  Keiichi Matsuzaki ,  Kazunori Matsuo ,  Shoichi Kitagawa

发明人： Hideki Tatematsu ,  Kenji Asakura ,  Masaru Imai ,  Tadafumi Shimizu ,  Masahiro Samei ,  Keiichi Matsuzaki ,  Kazunori Matsuo ,  Shoichi Kitagawa

IPC分类号： G03G15/20

CPC分类号： G03G15/205

摘要： The present invention relates to an image forming apparatus that enables the occurrence of print defects due to a first print start time delay to be eliminated without using a temperature sensor that has a small thermal time constant. When the temperature of a fixing belt serving as an image heating body is greater than or equal to a predetermined temperature following the elapse of a fixed time after an image forming operation is started, recording paper is transported to a nip area (fixing area) of a fixing apparatus before the temperature detected by a temperature sensor reaches a predetermined image fixing temperature, and an image forming operation is started immediately.

摘要翻译： 本发明涉及能够消除由于第一打印开始时间延迟而导致的打印缺陷的发生而不使用具有小的热时间常数的温度传感器的图像形成装置。 当作为图像加热体的定影带的温度在图像形成操作开始之后经过固定时间之后大于或等于预定温度时，记录纸被输送到 在由温度传感器检测的温度之前的定影装置达到预定的图像定影温度，并且立即开始图像形成操作。

公开(公告)号：US20050260008A1

公开(公告)日：2005-11-24

申请号：US11191590

申请日：2005-07-28

申请人： Hideki Tatematsu ,  Kenji Asakura ,  Masaru Imai ,  Tadafumi Shimizu ,  Masahiro Samei ,  Keiichi Matsuzaki ,  Kazunori Matsuo ,  Shoichi Kitagawa

发明人： Hideki Tatematsu ,  Kenji Asakura ,  Masaru Imai ,  Tadafumi Shimizu ,  Masahiro Samei ,  Keiichi Matsuzaki ,  Kazunori Matsuo ,  Shoichi Kitagawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2035

摘要： An image heating device is provided with reduced cost, by which a difference in glossiness among printed images on recording media is eliminated, and the wrapping of a belt and the like at a high temperature is prevented. In the image heating device, controlling means estimates a temperature of a pressure roller according to at least one of a temperature of a belt detected by a temperature sensor and a variation with time in the detected temperature from completion of the heating after application of an electric power to the magnetization coil by an exciting circuit is stopped and the heating of the belt by the heating roller is stopped, so as to determine a set temperature for the belt in a subsequent image heating period.

摘要翻译： 提供了一种图像加热装置，其成本降​​低，消除了记录介质上的打印图像之间的光泽度差异，并且防止了带状物等在高温下的缠绕。 在图像加热装置中，控制装置根据温度传感器检测到的带的温度和检测到的温度随着加热完成后的时间的变化中的至少一个来估计加压辊的温度 通过励磁电路对磁化线圈的动力停止，并且通过加热辊对带的加热停止，以便在随后的图像加热周期中确定带的设定温度。

公开(公告)号：US06819904B2

公开(公告)日：2004-11-16

申请号：US10687347

申请日：2003-10-15

申请人： Hiroshi Terada ,  Masaru Imai ,  Hideki Tatematsu ,  Akinori Toyoda ,  Kenji Asakura ,  Syuichi Watanabe

发明人： Hiroshi Terada ,  Masaru Imai ,  Hideki Tatematsu ,  Akinori Toyoda ,  Kenji Asakura ,  Syuichi Watanabe

IPC分类号： G03G1520

CPC分类号： G03G15/2053 ,  G03G15/2064 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2041 ,  H05B6/145

摘要： An image heating device having a predetermined amount of heat generation with a small electric current. The device includes a heat-generating roller (1) having magnetism and conductivity, an exciting coil (5) opposed to the peripheral face of the heat-generating roller (1) and adapted for allowing the heat-generating roller (1) to generate heat with electromagnetic induction. The exciting coil (5) is composed of a bundle of 60 copper wires of a 0.2 mm diameter are extended in the direction of the rotation axis of the heat-generating roller (1) and they are circumferentially wound along the circumferential direction of the heat-generating roller (1). The bundled wires are arranged in close contact with each other in the circumferential direction of the heat-generating roller (1) so as to cover the upper half of the heat-generating roller (1).

公开(公告)号：US06934483B2

公开(公告)日：2005-08-23

申请号：US10374541

申请日：2003-02-25

申请人： Hideki Tatematsu ,  Kenji Asakura ,  Masaru Imai ,  Tadafumi Shimizu ,  Masahiro Samei ,  Keiichi Matsuzaki ,  Kazunori Matsuo ,  Shoichi Kitagawa

发明人： Hideki Tatematsu ,  Kenji Asakura ,  Masaru Imai ,  Tadafumi Shimizu ,  Masahiro Samei ,  Keiichi Matsuzaki ,  Kazunori Matsuo ,  Shoichi Kitagawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G15/205 ,  G03G2215/00805 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2035

摘要： A fixing device as an image heating device is provided, by which a difference in glossiness is not caused in a recording medium in the axial direction of a pressure roller. When a print request is issued during the end-processing sequence, an electric power applied to a magnetization coil via an exciting circuit is dropped to 0 by controlling means during the start-processing sequence, and after an appropriate interval, the heating with full power is restarted by the controlling means. By so doing, the decrease in temperature at both ends of a fixing belt and a heat-generating roller in the axial direction can be compensated.

摘要翻译： 提供了作为图像加热装置的定影装置，通过该定影装置不会在压辊的轴向上在记录介质中产生不同的光泽度。 当在最终处理顺序期间发出打印请求时，通过激励电路施加到磁化线圈的电力在启动处理序列期间通过控制装置降低到0，并且在适当的间隔之后，以全功率进行加热 由控制装置重启。 通过这样做，可以补偿定影带和发热辊在轴向两端的温度的降低。