利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

3 条记录 (耗时 0.03 秒)

    Control system for test patch area exposure in a printing machine
    2.
    发明授权
    Control system for test patch area exposure in a printing machine 有权
    在印刷机中测试贴片区域曝光的控制系统

    公开(公告)号：US06204869B1

    公开(公告)日：2001-03-20

    申请号：US09216901

    申请日：1998-12-21

    申请人： Cathleen J. Raker ,  Sue K. Lam-Chon ,  Patrick O. Waller ,  Daniel R. Maurer ,  Joseph W. Ward ,  Rosario A. Bracco ,  Ronald E. Shaul ,  Robert M. Mara ,  Raymond L. Mongeon ,  Joseph A. Mastrandrea ,  Patricia A. Papaleo ,  Colleen Tremaine

    发明人： Cathleen J. Raker ,  Sue K. Lam-Chon ,  Patrick O. Waller ,  Daniel R. Maurer ,  Joseph W. Ward ,  Rosario A. Bracco ,  Ronald E. Shaul ,  Robert M. Mara ,  Raymond L. Mongeon ,  Joseph A. Mastrandrea ,  Patricia A. Papaleo ,  Colleen Tremaine

    IPC分类号： G03G1500

    CPC分类号： G03G15/5041 ,  G03G2215/00042 ,  G03G2215/00054

    摘要： There is provided a method for use with a printing machine having a movable imaging member and a projecting system for modulating a beam and projecting an image into the movable imaging member. The printing machine further includes a developer for application of developer material to the image projected onto the movable imaging member for transfer of the image to a print media sheet. The method, which is intended for use in controlling exposure of a test patch on the movable imaging member includes the steps of: a) providing a time-keeping device with the time-keeping device including a variable value which is either incrementable or decrementable; b) detecting a signal indicating that the movable imaging member is positioned relative to the beam in a selected orientation, wherein the movable imaging member passes by the beam at a selected speed; c) providing a reference value with the reference value varying as a function of the selected speed; d) in response to the detecting of (b), modulating the beam, relative to the movable imaging member, so as to expose a portion for the test patch; e) concurrent with the modulating of (d), incrementing or decrementing the variable value of the time keeping device; and f) repeating said modulating of (d) until the value of the variable value is about equal to the reference value and the test patch is exposed.

    摘要翻译： 提供了一种用于具有可移动成像构件和用于调制光束并将图像投影到可移动成像构件中的投影系统的印刷机的方法。 印刷机还包括用于将显影剂材料施加到投影到可移动成像构件上的图像以将图像转印到打印介质片材上的显影剂。 该方法旨在用于控制可移动成像构件上的测试贴片的曝光，包括以下步骤：a）向计时装置提供包括可递增或可减量的可变值的计时装置; b）检测指示所述可移动成像构件以选定取向相对于所述光束定位的信号，其中所述可移动成像构件以选定的速度通过所述光束; c）提供参考值，所述参考值作为所选择的速度的函数而变化; d）响应于（b）的检测，相对于可移动成像构件调制光束，以暴露测试贴片的一部分; e）与（d）的调制同时进行，递增或递减计时装置的可变值; 和f）重复所述（d）的调制，直到可变值的值大约等于参考值，并且测试贴片暴露。

    Developer rolls system with reduced edge image defects
    3.
    发明授权
    Developer rolls system with reduced edge image defects 失效
    显影辊系统具有减少的边缘图像缺陷

    公开(公告)号：US5930569A

    公开(公告)日：1999-07-27

    申请号：US127587

    申请日：1998-08-03

    申请人： Norman L. Roof, Jr. ,  Timothy P. Foley ,  Daniel R. Maurer ,  Jacqueline M. Christensen ,  Cho Y. Sze ,  Raymond L. Mongeon

    发明人： Norman L. Roof, Jr. ,  Timothy P. Foley ,  Daniel R. Maurer ,  Jacqueline M. Christensen ,  Cho Y. Sze ,  Raymond L. Mongeon

    IPC分类号： G03G15/09

    CPC分类号： G03G15/09 ,  G03G2215/0648

    摘要： An image development system for developing a latent image on an imaging surface, such as a xerographic photoreceptor, with plural development rollers having internal axially extending developer magnets with relatively offset axial end positions, and wherein at least one development roller has a smooth surface area at that same end, to reduce edge banding image defects from the interaction of the axial ends of the magnets of adjacent development rollers, especially for large size copy sheets being printed, such as B4 size. The image developer unit may have three development rollers with three different lengths of developer magnets to provide three different magnetic end positions staggered on opposite sides of the end position of the large sheet (relative to the imaging surface).

    摘要翻译： 一种图像显影系统，用于在诸如静电复印感光体的成像表面上显影潜像，具有多个显影辊，其具有内部轴向延伸的具有相对偏移的轴向端位置的显影剂磁体，并且其中至少一个显影辊具有平滑的表面积 同样的目的，为了减少相邻显影辊的磁体的轴向端部的相互作用的边缘条纹图像缺陷，特别是对于正在印刷的大尺寸复印纸，例如B4尺寸。 图像显影单元可以具有三个具有三个不同长度的显影剂磁体的显影辊，以在大片材（相对于成像表面）的端部位置的相对侧上提供三个不同的磁性端部位置。