Developer mix monitoring for color developer stations
    1.
    发明授权
    Developer mix monitoring for color developer stations 失效
    开发者混合监测用于彩色发展商站

    公开(公告)号:US5192972A

    公开(公告)日:1993-03-09

    申请号:US632677

    申请日:1990-12-24

    IPC分类号: G03G15/01 G03G15/08

    CPC分类号: G03G15/0853 G03G15/0849

    摘要: A toner monitor in an electrostatographic machine is automatically calibrated when a toner monitor is periodically caused to read a simulated nominal toner concentration. Any difference between the monitor's output and that expected for the simulated nominal toner concentration is applied to a compensation device. The simulated nominal toner concentration signal is obtained by periodic alignment of the toner monitor with a magnetically permeability member.

    摘要翻译: 当定期使墨粉监测器读取模拟的标称调色剂浓度时,电泳机中的调色剂监测器被自动​​校准。 显示器的输出和模拟标称色调剂浓度所预期的输出之间的差异将应用于补偿装置。 模拟的标称调色剂浓度信号通过调色剂监测器与磁导体构件的周期性对准获得。

    Disposable development station using two component developer and method
of making same
    3.
    发明授权
    Disposable development station using two component developer and method of making same 失效
    一次性开发站采用双组分开发者及其制作方法

    公开(公告)号:US5083166A

    公开(公告)日:1992-01-21

    申请号:US424634

    申请日:1989-10-20

    IPC分类号: G03G15/08

    CPC分类号: G03G15/0896 G03G15/0877

    摘要: A development station for developing electrostatic images includes a housing which has a vertically oriented separating wall which divides the housing into first and second chambers. In assembly both chambers are open at the top permitting ready loading of one chamber with a mixture of toner and carrier and the other chamber with substantially toner. The separating wall includes an opening at the bottom for passage of toner into the chamber containing the mixture. A toner applicator is located at the top of the chamber containing the mixture and a cover is permanently affixed across the tops of the chambers, totally sealing the chambers except for an opening in the cover opposite the toner-applicator. Because of the design of the station, especially the chambers which are open at the top for easy loading of toner and carrier, the station can economically be made disposable. A method for assembling the elements which make up the development station and for loading the toner and/or carrier in the various chambers is also described.

    摘要翻译: 用于显影静电图像的显影站包括具有垂直取向的分隔壁的壳体,该隔离壁将壳体分成第一和第二腔室。 在组装时,两个室在顶部开放,允许一个室与调色剂和载体的混合物以及另一个室基本上具有调色剂。 分离壁包括底部的开口,用于将调色剂通入含有混合物的室中。 调色剂施加器位于容纳混合物的室的顶部,并且盖永久地固定在室的顶部,完全密封除了与调色剂涂布器相对的盖中的开口之外的室。 由于车站的设计,特别是在顶部打开以容易地装载调色剂和载体的室,所以车站可以经济地被制成一次性。 还描述了组装构成显影站并用于将各种室中的调色剂和/或载体装载的元件的方法。

    Method and means for improving maximum density and tonal range of
electrographic images
    4.
    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 。

    Biased scavenging grid for electrographic apparatus
    6.
    发明授权
    Biased scavenging grid for electrographic apparatus 失效
    偏光扫描网格用于电子照相设备

    公开(公告)号:US4647186A

    公开(公告)日:1987-03-03

    申请号:US795007

    申请日:1985-11-04

    CPC分类号: G03G21/0047 G03G15/095

    摘要: Disclosed is apparatus for scavenging charged particles (e.g. triboelectrically carrier particles) from an electrographic recording element. Such apparatus comprises a conductive grid positioned in close proximity to the path of the recording element, and biasing means for electrically biasing the grid so as to attract the charged particles from the recording element yet prevent them from depositing on, and thereby contaminating, the grid.

    摘要翻译: 公开了用于从电摄影记录元件清除带电粒子(例如摩擦电载体颗粒)的装置。 这种装置包括一个靠近记录元件的路径定位的导电栅格,以及用于对栅格进行电偏置以便从记录元件吸引带电粒子的偏置装置,并阻止它们沉积在栅格上,从而污染栅格 。

    Electrographic apparatus, method and system employing image development
adjustment
    7.
    发明授权
    Electrographic apparatus, method and system employing image development adjustment 失效
    电子照相设备,采用图像开发调整的方法和系统

    公开(公告)号:US4531832A

    公开(公告)日:1985-07-30

    申请号:US519476

    申请日:1983-08-01

    IPC分类号: G03G13/09 G03G15/00 G03G15/09

    CPC分类号: G03G15/09

    摘要: Contrast and/or density adjustment of developed electrographic images is effected in a development system comprising a hard magnetic carrier and a magnetic brush having a rotary core and shell. The adjustment is effected by cooperatively varying the core and shell rotation rates, within predetermined ranges, in a manner which maintains the operative developer linear velocity generally equal to, and co-current with, the velocity of an electrographic image member's movement through the development zone.

    摘要翻译: 开发的电子照相图像的对比度和/或浓度调节在包括硬磁性载体和具有旋转芯和壳的磁刷的显影系统中实现。 通过在保持操作显影剂线速度大致等于并与电摄影图像构件通过显影区域的运动的速度的方式协调地改变核心和壳体旋转速率在预定范围内来实现调节。 。

    Electrographic magnetic brush development method, apparatus and system
    8.
    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。

    Electrographic apparatus and method featuring compressed-field, magnetic
brush development
    9.
    发明授权
    Electrographic apparatus and method featuring compressed-field, magnetic brush development 失效
    具有压缩场,磁刷发展的电子设备和方法

    公开(公告)号:US4357103A

    公开(公告)日:1982-11-02

    申请号:US247977

    申请日:1981-03-27

    申请人: Arthur S. Kroll

    发明人: Arthur S. Kroll

    IPC分类号: G03G15/09 G03G15/00

    CPC分类号: G03G15/09

    摘要: An improved magnetic brush development device features magnetic counterpoise means located in opposing relation (across the development zone) with the primary magnetic brush field adjacent the development zone. The magnetic counterpoise means has a repelling polarity relative to the primary magnetic brush field and cooperates to form a compressed, smooth nap at the development zone.

    摘要翻译: 改进的磁刷显影装置具有位于与显影区相邻的主磁刷场的相对关系(横跨开发区)的磁力平衡装置。 磁性平衡装置具有相对于主磁刷场的排斥极性,并且在开发区域协作以形成压缩的平滑的绒毛。

    Electrographic development apparatus
    10.
    发明授权
    Electrographic development apparatus 失效
    电子照相显影装置

    公开(公告)号:US4292921A

    公开(公告)日:1981-10-06

    申请号:US27115

    申请日:1979-04-04

    摘要: Improved electrographic development apparatus and procedure for use with partially-conductive developer employs transport of the developer through a first development zone in a direction generally countercurrent to a moving image member and through a second development zone in a direction generally cocurrent to the moving image member. The extent of image development within each such zone is controlled by the rate of developer transport and/or the magnitude of developer bias, so that overall development of the different portions of large solid image areas (particularly leading and trailing portions of such areas) is equalized.

    摘要翻译: 与部分导电显影剂一起使用的改进的电子照相显影设备和程序使得显影剂沿大体上与运动图像部件逆流的方向通过第一显影区域,并且通过第二显影区域沿大体上与运动图像部件并流的方向运输。 每个这样的区域内的图像显影的程度由显影剂传送速率和/或显影剂偏差的大小来控制,使得大的实心图像区域(特别是这些区域的特别的前部和尾部)的不同部分的整体发展是 平衡