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26 条记录 (耗时 0.027 秒)

    Heating mechanism for use in image forming apparatus
    1.
    发明授权
    Heating mechanism for use in image forming apparatus 失效
    用于图像形成装置的加热机构

    公开(公告)号：US06292647B1

    公开(公告)日：2001-09-18

    申请号：US09590244

    申请日：2000-06-08

    申请人： Haruhiko Ishida

    发明人： Haruhiko Ishida

    IPC分类号： G03G1520

    CPC分类号： G03G15/2053 ,  H05B6/145

    摘要： A fixing device includes a first rotation member formed hollow cylindrical and rotatable in a predetermined direction, a second rotation member brought into contact with the first rotation member at a predetermined pressure, so as to be rotated as the first rotation member rotates, creating a contact section with the first rotation member, through which an object to be heated can pass, a first induction heating device, provided within the first rotation member, for applying an alternating magnetic field which is in parallel with a circumferential direction of the first rotation member, onto the first rotation member, and a second induction heating device, provided within the first rotation member such as to surround an outer section of a part of the first induction heating device, and be close to both end portions of the first rotation member, for applying an alternating magnetic field which is in parallel with a circumferential direction of the first rotation member, onto the first rotation member, the fixing device heating the output image holding medium on which the first and second toner images have been transformed, and the toners which form the toner images, thereby fixing the toner on the output image holding medium.

    摘要翻译： 定影装置包括形成为中空圆柱形并可沿预定方向旋转的第一旋转构件，第二旋转构件以预定压力与第一旋转构件接触，以便随着第一旋转构件旋转而旋转，形成接触 具有第一旋转构件的被加热物可以通过的第一感应加热装置，设置在第一旋转构件内的用于施加与第一旋转构件的圆周方向平行的交变磁场的第一感应加热装置， 在第一旋转构件内设置有第一旋转构件和第二感应加热装置，以便围绕第一感应加热装置的一部分的外部部分，并且靠近第一旋转构件的两个端部，用于 将与第一旋转构件的圆周方向平行的交变磁场施加到第一辊上 加热其上已经变换了第一和第二调色剂图像的输出图像保持介质的定影装置和形成调色剂图像的调色剂，从而将调色剂固定在输出图像保持介质上。

    Motor unit, motor drive unit, fan unit and method of controlling the motor drive unit
    2.
    发明授权
    Motor unit, motor drive unit, fan unit and method of controlling the motor drive unit 失效
    电机单元，电机驱动单元，风扇单元以及电机驱动单元的控制方法

    公开(公告)号：US5650697A

    公开(公告)日：1997-07-22

    申请号：US477786

    申请日：1995-06-07

    申请人： Akihiko Imagi ,  Yoshio Yoshikuwa ,  Takuo Akiyama ,  Norikazu Ishikawa ,  Tatsunao Hayashida ,  Yu Hasegawa ,  Kenshi Kawagishi ,  Kazuyuki Mitsushima ,  Haruhiko Ishida ,  Hidekazu Totsuka

    发明人： Akihiko Imagi ,  Yoshio Yoshikuwa ,  Takuo Akiyama ,  Norikazu Ishikawa ,  Tatsunao Hayashida ,  Yu Hasegawa ,  Kenshi Kawagishi ,  Kazuyuki Mitsushima ,  Haruhiko Ishida ,  Hidekazu Totsuka

    IPC分类号： H02P23/00 ,  F02B75/02 ,  F24F11/00 ,  H02P25/04 ,  H02P25/14 ,  H02P27/02 ,  H02P7/36

    CPC分类号： H02P25/14 ,  F24F11/0001 ,  F02B2075/027 ,  F24F11/0079 ,  Y02B30/746

    摘要： The improved motor drive unit includes a zero-crossing voltage detector circuit composed of components (7) to (12) for detecting whether the voltage from an AC power supply (1) is zero-crossing and a switching circuit for performing on-off control by means of a thyristor 27 so as to switch between energization and de-energization of the AC power supply to a motor (2) and controls the speed of the motor by changing the ratio between the times of energization and de-energization of the AC power supply to the motor. The start of energization coincides with the zero-crossing of the AC power supply voltage whereas the timing of end of energization coincides with the zero-crossing of an energization current by means of the thyristor and wherein the energization time is fixed at a value either equal to or twice the power supply period whereas the de-energization time is varied in units that are integral multiples of one half the power supply period. If desired, a plurality of patterns for percent energization may be combined to attain a desired percent energization. Alternatively, a plurality of patterns that are equal in the ratio between the energization and de-energization times are used in combination. Only the main winding in the motor is preferably controlled for optimal energization.

    摘要翻译： 改进的电动机驱动单元包括由用于检测来自交流电源（1）的电压是否过零的组件（7）至（12）组成的过零电压检测器电路和用于执行开关控制的开关电路 通过晶闸管27切换到电动机（2）的交流电源的通电和断电之间，并且通过改变AC的通电和断电时间之间的比例来控制电动机的速度 给电机供电。 通电的开始与交流电源电压的过零点一致，而通电结束的定时与通过晶闸管的通电电流的过零点一致，并且其中通电时间固定为相等的值 达到或两倍的供电周期，而去电时间以供电周期的一半的整数倍的单位变化。 如果需要，可以组合用于百分比通电的多个图案以获得所需的百分比通电。 或者，组合使用与通电时间和去电时间之比相等的多个图案。 优选地仅控制电动机中的主绕组以最佳的通电。

    Developing unit, image forming apparatus and image forming method
    5.
    发明申请
    Developing unit, image forming apparatus and image forming method 失效
    显影单元，成像设备和图像形成方法

    公开(公告)号：US20070077102A1

    公开(公告)日：2007-04-05

    申请号：US11242043

    申请日：2005-10-04

    申请人： Takao Izumi ,  Haruhiko Ishida ,  Masashi Takahashi

    发明人： Takao Izumi ,  Haruhiko Ishida ,  Masashi Takahashi

    IPC分类号： G03G15/09

    CPC分类号： G03G15/09 ,  G03G2215/0119

    摘要： An image forming apparatus of the invention holds a first developing agent of a first color and inverse transfer preventing agent, supplies the first developing agent with predetermined potential, supplies the first developing agent to an image portion of an image carrier, supplies the inverse transfer preventing agent with the first developing agent and electric charge of an inverse polarity, supplies the inverse transfer preventing agent to a non-image portion having a predetermined potential difference relative to an image portion, brings the image carrier into contact with a transfer object medium to which a second developing agent of a second color different from the first color is already transferred and transfers the first developing agent to the transfer object medium.

    摘要翻译： 本发明的图像形成装置保持第一颜色和反向转移阻止剂的第一显影剂，向第一显影剂提供预定电位，将第一显影剂供应到图像载体的图像部分，提供反转移防止 具有第一显影剂和反极性的电荷的反转移防止剂相对于图像部分提供具有预定电位差的非图像部分，使图像载体与转印对象介质接触，转印对象介质 不同于第一颜色的第二颜色的第二显影剂已经被转印，并将第一显影剂转印到转印体介质上。

    Image forming apparatus having means for applying a common transfer bias voltage to first and second transfer rollers
    6.
    发明授权
    Image forming apparatus having means for applying a common transfer bias voltage to first and second transfer rollers 失效
    图像形成装置具有用于向第一和第二转印辊施加公共转印偏压的装置

    公开(公告)号：US5469248A

    公开(公告)日：1995-11-21

    申请号：US186149

    申请日：1994-01-25

    申请人： Shigeru Fujiwara ,  Masashi Takahashi ,  Haruhiko Ishida

    发明人： Shigeru Fujiwara ,  Masashi Takahashi ,  Haruhiko Ishida

    IPC分类号： G03G15/01

    CPC分类号： G03G15/0131

    摘要： An image forming apparatus includes a first image forming unit for forming a first image on a first image carrier, a second image forming unit for forming a second image on a second image carrier, a conveyor belt confronting the first and second image carriers for conveying an image receiving medium to the first and second image carriers successively. The apparatus further includes a first transfer roller for transferring the first image from the first image carrier to the image receiving medium, the first transfer roller being located at a first distance from a first transfer position of the first image carrier along a conveying direction of the image receiving medium, and a second transfer roller for transferring the second image from the second image carrier to the image receiving medium, the second transfer roller being located at a second distance from a second transfer position of the second image carrier shorter than the first distance along the conveying direction of the image receiving medium. A common transfer bias voltage is applied to the first and second transfer rollers to form first and second electric fields at the first and second transfer positions, respectively.

    摘要翻译： 一种图像形成装置包括：用于在第一图像载体上形成第一图像的第一图像形成单元，用于在第二图像载体上形成第二图像的第二图像形成单元，面对第一和第二图像载体的传送带，用于传送 图像接收介质连续地连接到第一和第二图像载体。 该装置还包括用于将第一图像从第一图像载体传送到图像接收介质的第一转印辊，第一转印辊位于距第一图像载体的第一转印位置的第一距离处，沿第一转印辊的输送方向 图像接收介质和用于将第二图像从第二图像载体传送到图像接收介质的第二转印辊，第二转印辊位于距离第二图像载体的第二转印位置短的第二距离处， 沿着图像接收介质的输送方向。 向第一和第二转印辊施加常见的转印偏压，以分别在第一和第二转印位置形成第一和第二电场。

    Electrophotographic method and apparatus
    7.
    发明授权
    Electrophotographic method and apparatus 失效
    电子照相方法和装置

    公开(公告)号：US4611901A

    公开(公告)日：1986-09-16

    申请号：US628040

    申请日：1984-07-05

    申请人： Mitsuaki Kohyama ,  Toshihiro Kasai ,  Haruhiko Ishida ,  Shigenobu Osawa

    发明人： Mitsuaki Kohyama ,  Toshihiro Kasai ,  Haruhiko Ishida ,  Shigenobu Osawa

    IPC分类号： G03G15/01 ,  G03G15/02 ,  G03G13/01

    CPC分类号： G03G15/0291 ,  G03G15/0152 ,  G03G15/0163

    摘要： An electrophotographic method according to the present invention forms a color image on a photosensitive drum by repeating a cycle of charging, exposure and development for a plurality of times. The second charging process for charging the photosensitive drum having a first visible image thereon is performed to temporarily discharge a predetermined charge and thereafter limit reaching of the predetermined charge on a surface of the photosensitive drum in accordance with a surface potential at the photosensitive drum.

    摘要翻译： 根据本发明的电子照相方法通过重复多次充电，曝光和显影的循环在感光鼓上形成彩色图像。 执行用于对其上具有第一可视图像的感光鼓充电的第二充电过程以暂时放电预定电荷，然后根据感光鼓的表面电位限制感光鼓表面上的预定电荷达到。