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    Electrographic plotters
    2.
    发明公开
    Electrographic plotters 失效
    电子绘图仪

    公开(公告)号：EP0434416A3

    公开(公告)日：1992-02-19

    申请号：EP90313974.9

    申请日：1990-12-20

    Applicant: XEROX CORPORATION

    Inventor： Hansen, Lorin K. ,  McFarland, Keith E. ,  Gable, Richard J. ,  Sayre, Jack H. ,  Lara, Edwardo D. ,  White, Stephen D. ,  Lloyd, William A.

    IPC: H04N1/40 ,  H04N1/29

    CPC classification number: H04N1/295 ,  B65H2301/5133

    Abstract: This invention is directed to a removal of a ghost image created during a processing of a film laminate medium (12′) by an electrographic plotter (10′). Recording an image on the film medium induces a ghosting potential over a developing station (30) which causes a spurious image (ghost) to be developed. The latent image is created by depositing a charge on a dielectric layer of the film. A relationship exists between the deposited charge and the ghosting potential. By use of information known to the system, the ghosting potential may be estimated and reduced. A preferred method estimates the magnitude of the ghosting potential by use of the relationship between deposited charge and ghosting potential. A counteracting potential is applied to the system to reduce the ghosting potential over the developing station.

    Web tracking system
    5.
    发明公开
    Web tracking system 失效
    Papierbahnführungssystem。

    公开(公告)号：EP0110669A1

    公开(公告)日：1984-06-13

    申请号：EP83307155.8

    申请日：1983-11-23

    Applicant: XEROX CORPORATION

    Inventor： St. John, Robert P. ,  Lloyd, William A.

    IPC: B65H26/00 ,  B65H23/04

    CPC classification number: B65H23/00 ,  B65H23/032 ,  B65H2511/512 ,  G03G2215/0016

    Abstract: A system for controlling the path of a web of material (18), which is transported from a supply (20) to a takeup means (32) along a predetermined path via one or more processing stations (12, 14, 16), comprises aligned tracking indicia (72, 74, 78) along at least one edge of the web. Means are provided to observe the tracking indicia as the web is transported along the system path and produce signals representing dimensional changes in the length and width of the web due to web shrinkage or expansion, or indicative of a particular point along the length of the web useful at one or more of the processing stations in the system.

    Abstract translation: 一种用于控制经由一个或多个处理站（12,14,16）沿着预定路径从电源（20）传送到卷绕装置（32）的材料卷材（18）的路径的系统包括 沿着幅材的至少一个边缘对准跟踪标记（72,74,78）。 提供了用于观察跟踪标记的手段，因为幅材沿着系统路径传送并且产生表示由于幅材收缩或膨胀引起的幅材的长度和宽度的尺寸变化的信号，或指示沿着幅材长度的特定点 在系统中的一个或多个处理站处有用。

    Color electrographic recording apparatus
    7.
    发明公开
    Color electrographic recording apparatus 失效
    ElektrographischesFarbkopiergerät。

    公开(公告)号：EP0110668A1

    公开(公告)日：1984-06-13

    申请号：EP83307154.1

    申请日：1983-11-23

    Applicant: XEROX CORPORATION

    Inventor： St. John Robert P. ,  Lloyd, William A.

    IPC: G03G15/01

    CPC classification number: G03G15/0142 ,  G03G15/0194 ,  H04N1/047 ,  H04N1/12 ,  H04N1/193 ,  H04N1/508 ,  H04N2201/02416 ,  H04N2201/02439 ,  H04N2201/03108 ,  H04N2201/0471 ,  H04N2201/04712 ,  H04N2201/04722 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04781 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

    Abstract: A color electrographic recording apparatus (10) produces on a record medium (16) a composite color image comprising a plurality of superimposed component images of different colors, e.g., magenta, cyan, yellow and black. The medium is driven in opposite directions through the apparatus which has a recording head (48) for forming a latent image on the medium, a plurality of developing stations (26, 28, 30, 32) adjacent one side or both sides of the recording station each of the developing stations developing a latent image into a visible image of a respective color. The apparatus passes a section of the record medium past the recording head to form a first latent image which is developed in its respective color before the medium is reversed past the recording head to permit formation of the next latent image followed by its respective color development. This process is repeated until all component latent images and their respective color development have been completed to form a composite color image. The apparatus also includes registration means to compensate for any dimensional changes of the medium section in use so that all the component color images will be superimposed on one another despite any shrinkage or expansion of the medium during processing.

    Abstract translation: 彩色电摄影记录装置（10）在记录介质（16）上产生包括不同颜色的多个重叠分量图像（例如品红色，青色，黄色和黑色）的复合彩色图像。 介质通过具有用于在介质上形成潜像的记录头（48）的设备沿相反方向驱动，与记录的一侧或两侧相邻的多个显影站（26,28,30,32） 将每个显影站将潜像显影成相应颜色的可见图像。 该装置将记录介质的一部分通过记录头，以形成第一潜像，该第一潜像在介质反转通过记录头之前以各自的颜色显影，以允许形成下一个潜像，随后进行其各自的显色。 重复该过程直到所有组分潜像及其各自的显色已经完成以形成复合彩色图像。 该装置还包括用于补偿使用中的介质部分的任何尺寸变化的配准装置，使得即使在处理过程中介质的任何收缩或膨胀，所有组分彩色图像将彼此叠加。

    Electrographic plotters
    8.
    发明公开
    Electrographic plotters 失效
    德拉克（Elektrografischer Drucker）

    公开(公告)号：EP0434416A2

    公开(公告)日：1991-06-26

    申请号：EP90313974.9

    申请日：1990-12-20

    Applicant: XEROX CORPORATION

    Inventor： Hansen, Lorin K. ,  McFarland, Keith E. ,  Gable, Richard J. ,  Sayre, Jack H. ,  Lara, Edwardo D. ,  White, Stephen D. ,  Lloyd, William A.

    IPC: H04N1/40 ,  H04N1/29

    CPC classification number: H04N1/295 ,  B65H2301/5133

    Abstract: This invention is directed to a removal of a ghost image created during a processing of a film laminate medium (12′) by an electrographic plotter (10′). Recording an image on the film medium induces a ghosting potential over a developing station (30) which causes a spurious image (ghost) to be developed.
    The latent image is created by depositing a charge on a dielectric layer of the film. A relationship exists between the deposited charge and the ghosting potential. By use of information known to the system, the ghosting potential may be estimated and reduced. A preferred method estimates the magnitude of the ghosting potential by use of the relationship between deposited charge and ghosting potential. A counteracting potential is applied to the system to reduce the ghosting potential over the developing station.

    Abstract translation: 本发明涉及通过电刻印机（10分钟）去除在薄膜层压介质（12分钟）的加工期间产生的重影图像。 在胶片介质上记录图像会在显影台（30）上产生重影电位，从而产生伪像（ghost）。 通过在膜的电介质层上沉积电荷来产生潜像。 沉积电荷与重影电位之间存在关系。 通过使用系统已知的信息，可以估计和减少重影电位。 优选的方法通过使用沉积电荷和重影电位之间的关系来估计重影电位的大小。 对系统应用了抵消潜力，以减少显影站上的重影潜力。

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