Method and apparatus for control of variability in charge to mass ratio
in a development station
    4.
    发明授权
    Method and apparatus for control of variability in charge to mass ratio in a development station 失效
    用于控制开发站中电荷与质量比的变化的方法和装置

    公开(公告)号:US5987271A

    公开(公告)日:1999-11-16

    申请号:US998787

    申请日:1997-12-29

    IPC分类号: G03G15/00

    摘要: An electrostatographic recording apparatus and method wherein a primary charger establishes a uniform electrostatic charge on an electrophotoconductive image recording member in accordance with a first operating parameter. A recording device imagewise modulates the charge on the image recording member to form electrostatic latent images in accordance with a second operating parameter and also forms a developable process control patch. A development station develops the electrostatic latent images and the control patch on the image recording member with toner in accordance with a third operating parameter. A replenishment device provides toner to the development station at a controlled rate in accordance with a replenishment signal. A sensor senses density of the control patch developed by the development station; and a controller is responsive to density of the control patch and provides adjustments to the first, second and third operating parameters and controls a reference signal used to generate the replenishment signal as a function of a parameter related to one of the first, second or third operating parameters. Preferably the controller controls the reference signal as a function of the parameter related to the first operating parameter, primary voltage setpoint.

    摘要翻译: 一种静电摄影记录装置和方法,其中主充电器根据第一操作参数在光电导电图像记录部件上建立均匀的静电电荷。 记录装置成像地调制图像记录部件上的电荷,以根据第二操作参数形成静电潜像,并且还形成可显影处理控制贴片。 显影站根据第三操作参数用调色剂显影图像记录部件上的静电潜像和控制贴片。 补充装置根据补充信号以受控的速率向显影站提供调色剂。 传感器感测由开发台开发的控制补片的密度; 并且控制器响应于控制块的密度并且提供对第一,第二和第三操作参数的调整,并且控制用于生成补充信号的参考信号,该参考信号是与第一,第二和第三操作参数中的一个有关的参数的函数 操作参数。 优选地,控制器根据与第一操作参数,一次电压设定值相关的参数来控制参考信号。

    Color filter arrays
    5.
    发明授权
    Color filter arrays 失效
    彩色滤光片阵列

    公开(公告)号:US4764670A

    公开(公告)日:1988-08-16

    申请号:US91802

    申请日:1987-09-01

    摘要: A color filter array is disclosed comprised of red, green, and blue filters forming an interlaid pattern. Each of the red, green, and blue filters is formed of two superimposed filter layers, each made up of a different subtractive primary dye. Layers of controlled thickness containing a single dye permit precise control of filter density and hue. The color filter array can form part of a viewable display unit or form part of an image sensor.

    摘要翻译: 公开了一种滤色器阵列,其包括形成中间图案的红色,绿色和蓝色滤色器。 红色,绿色和蓝色滤光片中的每一个由两个叠加的滤光层组成,每个滤光层由不同的减色原色染料组成。 含有单一染料的受控厚度层允许精确控制过滤器密度和色调。 滤色器阵列可以形成可视显示单元的一部分或形成图像传感器的一部分。

    Post rip image rendering in an electrographic printer using density patch feedback
    6.
    发明授权
    Post rip image rendering in an electrographic printer using density patch feedback 有权
    在使用密度贴片反馈的电子照相打印机中进行后期图像渲染

    公开(公告)号:US06975411B2

    公开(公告)日:2005-12-13

    申请号:US10785677

    申请日:2004-02-24

    摘要: An electrostatographic recording method for printing an image on a receiver comprising the steps of: operating a primary charger to establish a uniform primary voltage level on an image recording member; developing a control patch on the image recording member, measuring density of the control patch to thereby provide a density measurement signal; converting the image into a digital bitmap comprised of an array of pixels wherein each pixel is assigned a digital value representing marking information; rendering the digital bitmap by defining each pixel as either a background pixel, interior pixel, or an edge pixel and reassigning the digital value of one or more of edge pixels or interior pixels independently and as a function of the density measurement signal; modulating electrostatic charge on the image recording member as a function of the digital bitmap after rendering.

    摘要翻译: 一种用于在接收机上打印图像的静电摄影记录方法,包括以下步骤:操作主充电器以在图像记录部件上建立均匀的初级电压电平; 在所述图像记录部件上形成控制贴片,测量所述控制贴片的密度,由此提供密度测量信号; 将图像转换成由像素阵列组成的数字位图,其中每个像素分配有表示标记信息的数字值; 通过将每个像素定义为背景像素,内部像素或边缘像素并且独立地重新分配边缘像素或内部像素中的一个或多个的数字值并且作为密度测量信号的函数来呈现数字位图; 作为数字位图的功能,在图像记录部件上调制静电电荷。

    Electrostatographic method and apparatus with improved auto cycle up
    7.
    发明授权
    Electrostatographic method and apparatus with improved auto cycle up 失效
    具有改善自动循环功能的静电摄影方法和装置

    公开(公告)号:US5862433A

    公开(公告)日:1999-01-19

    申请号:US999113

    申请日:1997-12-29

    IPC分类号: G03G15/08 G03G15/00

    摘要: An electrostatographic recording method and apparatus includes an auto cycle-up routine for establishing readiness of various stations including a toning station for proper operation. In the automatic cycle-up routine proper operation of a toning station warmer is determined by a controller. The controller then establishes a first cycle-up duration when the toning station warmer is determined to be operating satisfactorily and a second and longer cycle-up duration when the toning station warmer is determined to be not operating satisfactorily.

    摘要翻译: 一种静电记录方法和装置,包括一个自动循环程序,用于建立各种站点的准备状态,包括一个调色台用于正常操作。 在自动循环程序中,调色台加热器的正确操作由控制器确定。 然后,当确定调色台加热器确实令人满意地运行时,控制器建立第一循环持续时间,并且当调色台加热器被确定为不令人满意地运行时,第二和更长的循环持续时间。