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    Digital printing systems for packaging and document printing with special colors
    22.
    发明授权
    Digital printing systems for packaging and document printing with special colors 有权
    用于特殊颜色的包装和文件印刷的数字印刷系统

    公开(公告)号：US08854686B2

    公开(公告)日：2014-10-07

    申请号：US12372074

    申请日：2009-02-17

    申请人： Grace T. Brewington ,  John F. Knapp ,  Nancy Y. Jia

    发明人： Grace T. Brewington ,  John F. Knapp ,  Nancy Y. Jia

    IPC分类号： G06F15/00 ,  H04N1/40 ,  G06K7/00

    CPC分类号： H04N1/32502 ,  H04N1/32529 ,  H04N1/32545 ,  H04N1/3255 ,  H04N1/506 ,  H04N1/6097

    摘要： A printing apparatus or printing system that uses multiple print engines to form an image on a substrate. The printing apparatus or printing system may be a surface printing system or a reverse printing system. Each of the multiple print engines has at least one color station. The color stations are arranged in the print engines and between the multiple print engines based on whether the printing system is a surface printing system or a reverse printing system to control the order in which colorant is formed on a substrate. Multiple print engines allow for, among other things, a greater color gamut and therefore assists in expansion of the standard color gamut.

    摘要翻译： 一种使用多个打印引擎在基板上形成图像的打印设备或打印系统。 打印设备或打印系统可以是表面印刷系统或反向印刷系统。 多个打印引擎中的每一个具有至少一个色站。 基于打印系统是表面印刷系统还是用于控制在基板上形成着色剂的顺序的反转印刷系统，色站被布置在打印引擎中并在多个打印引擎之间。 多个打印引擎除其他外允许更大的色域，从而有助于扩展标准色域。

    JOINT FEEDFORWARD & FEEDBACK CONTROL OF A KEYED INKING UNIT
    23.
    发明申请
    JOINT FEEDFORWARD & FEEDBACK CONTROL OF A KEYED INKING UNIT 审中-公开
    关键油墨单元的联合反馈和反馈控制

    公开(公告)号：US20130186290A1

    公开(公告)日：2013-07-25

    申请号：US13356254

    申请日：2012-01-23

    申请人： Peter PAUL ,  Jorge A. Alvarez ,  Nancy Y. Jia

    发明人： Peter PAUL ,  Jorge A. Alvarez ,  Nancy Y. Jia

    IPC分类号： B41F31/02

    CPC分类号： B41F7/26 ,  B41F31/045 ,  B41F31/05 ,  B41F33/02 ,  B41P2227/70

    摘要： A method and system to control ink keys for a printing machine is provided. The ink keys are adjustable to control ink feed to individual zones located across the width of an ink roller. Feedforward and feedback control loops adjust the ink supply dynamically based on a pixel count of the image content. The pixel count looks ahead in the video stream to allow time for the adjustment at the inker keys to propagate through the ink train to affect ink output onto the imaging drum. Feedback of the achieved ink density on control patches on the imaging drum is also used to command the inker key motors. Feedback is also used to update the inker propagation delay and dynamic model used to determine how much the inker keys need to be adjusted based on the pixel count stream.

    摘要翻译： 提供了一种用于控制印刷机油墨键的方法和系统。 油墨键是可调节的，以控制墨水进给到位于墨辊宽度上的各个区域。 前馈和反馈控制循环根据图像内容的像素数动态调整墨水供应。 像素数量在视频流中向前看，以允许在打印机键处的调整时间通过墨水列传播以影响到成像鼓上的墨水输出。 在成像鼓上的控制贴片上实现的墨浓度的反馈也用于命令墨水键盘马达。 反馈也用于更新墨迹传播延迟和动态模型，用于确定基于像素计数流需要调整多少墨迹键。