Electrographic development method, apparatus and system
    1.
    发明授权
    Electrographic development method, apparatus and system 失效
    电子显影方法,装置和系统

    公开(公告)号:US4602863A

    公开(公告)日:1986-07-29

    申请号:US621351

    申请日:1984-06-18

    IPC分类号: G03G15/09

    CPC分类号: G03G15/09

    摘要: Electrographic development is obtained by predeterminedly rotating an alternating pole core of a magnetic brush applicator, within a surrounding applicator shell, to supply developer, of the kind including small particle, hard-magnetic carrier and electrically insulative toner, to an electrostatic imaging member which moves past a development station with predetermined linear velocity. The shell can be stationary or rotate at a velocity significantly less than the image member velocity. The core is predeterminedly rotated so that (i) its fields effect a large portion of transport through the development zone and (ii) the developer moves co-currently with the imaging member and at a linear velocity generally equal to the imaging member velocity.

    摘要翻译: 通过在周围的施加器壳体内预定旋转磁刷施加器的交变磁极芯,将包括小颗粒,硬磁性载体和电绝缘色粉的类型的显影剂供应到移动的静电成像构件, 经过具有预定线速度的开发站。 壳体可以是静止的或以显着小于图像构件速度的速度旋转。 芯预定旋转,使得(i)其场影响通过显影区域的大部分传输,和(ii)显影剂与成像构件并行地以与成像构件速度大致相等的线速度移动。

    Electrographic magnetic brush development method, apparatus and system
    2.
    发明授权
    Electrographic magnetic brush development method, apparatus and system 失效
    电磁磁刷开发方法,装置和系统

    公开(公告)号:US4473029A

    公开(公告)日:1984-09-25

    申请号:US510109

    申请日:1983-07-01

    CPC分类号: G03G15/09

    摘要: Improved electrographic development is obtained in the presence of a development electrode field by predeterminedly rotating both the core and shell of a magnetic brush applicator to supply developer, of the kind comprising small particle, hard-magnetic carrier and electrically insulative toner, to an electrostatic imaging member which moves past a development station with predetermined linear velocity. In one preferred embodiment the core and shell are predeterminedly rotated so that the shell moves through the development zone at a rate preventing toner that is plated-out on the shell from affecting image development and so that the developer moves co-currently with the imaging member at a generally equal linear velocity.

    摘要翻译: 在显影电极场的存在下通过预定地旋转磁刷施加器的芯和壳两者将包括小颗粒,硬磁性载体和电绝缘调色剂的显影剂供应到静电成像的显影剂获得改进的电泳显影 以预定的线速度移动通过开发站的构件。 在一个优选实施例中,芯和壳被预定地旋转,使得壳以防止在外壳上镀出的调色剂影响图像显影的速率移动通过显影区,并且使得显影剂与成像构件同时移动 以大致相等的线速度。

    Method and means for improving maximum density and tonal range of
electrographic images
    3.
    发明授权
    Method and means for improving maximum density and tonal range of electrographic images 失效
    提高电子照相图像最大密度和色调范围的方法和手段

    公开(公告)号:US4385823A

    公开(公告)日:1983-05-31

    申请号:US133077

    申请日:1980-03-24

    IPC分类号: G03G15/04 G03G15/00

    CPC分类号: G03G15/04027

    摘要: In a novel electrographic copying method and apparatus, a latent electrostatic image is formed on an insulating layer of an electrophotographic element and, before, during or after the formation of the latent electrostatic image, there is created a plurality of charge islands, such as by an exposure through a screen. These charge islands are distinct and in addition to any charge islands which result from the image-forming step. After establishment of the charge islands and the latent electrostatic image, the resulting charge pattern is developed with a developer which either is at least partially conductive, i.e., has a maximum resistance of about 10.sup.9 ohms, or is rendered so by the phenomenon of electrical breakdown.

    摘要翻译: 在一种新颖的电子照相复印方法和装置中,在电子照像元件的绝缘层上形成静电潜像,并且在形成静电潜像之前,期间或之后形成多个电荷岛,例如通过 通过屏幕曝光。 这些电荷岛是不同的,除了由图像形成步骤产生的任何电荷岛外。 在充电岛和静电潜像建立之后,所得到的电荷图案用显影剂显影,显影剂至少部分导电,即具有约109欧姆的最大电阻,或者由于电击穿现象而变得如此 。

    Method and means for improving maximum density and tonal range of
electrographic images
    4.
    再颁专利
    Method and means for improving maximum density and tonal range of electrographic images 失效
    提高电子照相图像最大密度和色调范围的方法和手段

    公开(公告)号:USRE32259E

    公开(公告)日:1986-10-07

    申请号:US695497

    申请日:1985-01-28

    IPC分类号: G03G15/04

    CPC分类号: G03G15/04027

    摘要: In a novel electrographic copying method and apparatus, a latent electrostatic image is formed on an insulating layer of an electrophotographic element and, before, during or after the formation of the latent electrostatic image, there is created a plurality of charge islands, such as by an exposure through a screen. These charge islands are distinct and in addition to any charge islands which result from the image-forming step. After establishment of the charge islands and the latent electrostatic image, the resulting charge pattern is developed with a developer which either is at least partially conductive, i.e., has a maximum resistance of about 10.sup.9 ohms, or is rendered so by the phenomenon of electrical breakdown.

    Electrographic development apparatus and method having oscillating
magnetic cross-mixing
    6.
    发明授权
    Electrographic development apparatus and method having oscillating magnetic cross-mixing 失效
    具有振荡磁交叉混合的电子显影装置和方法

    公开(公告)号:US4393810A

    公开(公告)日:1983-07-19

    申请号:US380173

    申请日:1982-05-20

    申请人: George P. Kasper

    发明人: George P. Kasper

    IPC分类号: G03G15/09

    CPC分类号: G03G15/09

    摘要: Electrographic development apparatus of the kind having a developer housing and magnetic means for feeding developer along a path from a supply, to a developing position and back toward the supply includes cross-mix magnet means located proximate a portion of the developer path and means for oscillating the magnet means transversely across the path. In one preferred embodiment the cross-mix magnet and oscillating means are located external of the developer housing.

    摘要翻译: 具有显影剂外壳的电照相显影装置和用于沿着从供给到显影位置和向后朝向供给的路径供给显影剂的磁性装置包括位于显影剂路径的一部分附近的交错混合磁体装置和用于振荡的装置 磁铁意味着横跨该路径。 在一个优选实施例中,交叉混合磁体和振荡装置位于显影剂外壳的外部。

    Electrographic apparatus and process for humidity stabilized development
    7.
    发明授权
    Electrographic apparatus and process for humidity stabilized development 失效
    用于湿度稳定发展的电子设备和工艺

    公开(公告)号:UST956001I4

    公开(公告)日:1977-03-01

    申请号:US706328

    申请日:1976-07-19

    IPC分类号: G03G15/08

    CPC分类号: G03G15/0887

    摘要: an electrographic apparatus for applying a dry particulate developer mix comprising a triboelectric mixture of toner powder and carrier particles to an electrostatic image and a process for using the same are disclosed. The apparatus includes developing means for applying the developer mix to the electrostatic image and heat generating means associated with the developing means to directly heat the developer mix whereby the developer mix is electrically stabilized against relative humidity effects, particularly high relative humidity conditions.