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4 条记录 (耗时 0.017 秒)

    Developing device
    1.
    发明授权
    Developing device 失效
    开发设备

    公开(公告)号：US5828936A

    公开(公告)日：1998-10-27

    申请号：US831330

    申请日：1997-03-31

    申请人： Tamotsu Shimizu ,  Eiji Gyotoku

    发明人： Tamotsu Shimizu ,  Eiji Gyotoku

    IPC分类号： G03G15/08 ,  G03G15/09

    CPC分类号： G03G15/09 ,  G03G2215/0609

    摘要： A developing device is provided with a magnetic member having a plurality of magnetic poles N and S within a developing sleeve that rotates to transport a developer to an image bearing member. The device also includes a regulating member, which is formed of magnetic material, and which is spaced from the developing sleeve in so that the surface of the regulating member that is located on the upstream side in the developer transport direction is positioned downstream in the developer transport direction from a point of peak perpendicular magnetic flux density of the opposing magnetic pole of a magnetic member near the position at which the regulating member faces the developing sleeve, and positioned upstream in the developer transport direction from a point of 1/2 the peak perpendicular magnetic flux density of the opposing magnetic pole.

    摘要翻译： 显影装置设置有在显影套筒内具有多个磁极N和S的磁性构件，该显影套筒旋转以将显影剂输送到图像承载构件。 该装置还包括由磁性材料形成并与显影套筒隔开的调节构件，使得位于显影剂输送方向上游侧的调节构件的表面位于显影剂输送方向的下游 从磁性构件的相对磁极的峰值垂直磁通密度点到调节构件面对显影套筒的位置附近的位置，并从位于显影剂输送方向的1/2位置的位置的传送方向 相对磁极的垂直磁通密度。

    Development apparatus and method using selectively applied AC voltages
    2.
    发明授权
    Development apparatus and method using selectively applied AC voltages 失效
    使用选择性施加的交流电压的开发装置和方法

    公开(公告)号：US5911098A

    公开(公告)日：1999-06-08

    申请号：US14396

    申请日：1998-01-27

    申请人： Eiji Gyotoku ,  Tamotsu Shimizu

    发明人： Eiji Gyotoku ,  Tamotsu Shimizu

    IPC分类号： G03G15/08 ,  G03G15/09

    CPC分类号： G03G15/0907 ,  G03G15/0803 ,  G03G2215/0621 ,  G03G2215/0643 ,  G03G2215/0648

    摘要： A development apparatus according to the invention comprises at least two developer carrier members in juxtaposition for transporting a developer material to a development region between the developer carrier members and an image bearing member in opposed relation. An AC voltage applying device is adapted to apply AC voltages to the respective developer carrier members thereby applying AC electric fields to the respective gaps between the developer carrier members and the image bearing member based on an active period to apply the AC electric field and an inactive period to apply no AC electric field. When one of the adjacent developer carrier members is subject to the active period, the other developer carrier member is subject to the inactive period.

    摘要翻译： 根据本发明的显影装置包括至少两个显影剂载体构件，其并置用于将显影剂材料输送到显影剂载体构件和图像承载构件之间的相对关系中的显影区域。 交流电压施加装置适于将AC电压施加到各个显影剂载体构件，从而基于有效周期将AC电场施加到显影剂载体构件和图像承载构件之间的相应间隙，以施加AC电场和非活动 期间无交流电场。 当相邻的显影剂载体构件中的一个受到活动期限时，另一个显影剂载体构件处于非活动期。