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    • 1. 发明授权
    • Method of printing a security verification with inkjet printers
    • 使用喷墨打印机打印安全验证的方法
    • US06607267B2
    • 2003-08-19
    • US09776056
    • 2001-02-02
    • Stephen L. TestardiBrooke E. Smith
    • Stephen L. TestardiBrooke E. Smith
    • B41J201
    • B41M7/0018B41J2/01B41J11/0015B41M3/14B41M3/144
    • In combination with an inkjet printer having a glossy topcoat deposition feature, a method for printing security marks on an inkjet-printed sheet which includes the step of modulating the deposition of the topcoat layer, rather applying it uniformly to the imaged surface of the sheet. Modulated deposition results in variations in gloss which are visible when the document is viewed at an angle. Three alternatives for modulation are possible: the topcoat layer may be applied to the entire sheet, but with the amount thereof deposited per unit area over the surface of the document alternating between a low value and a high value; the topcoat layer may be applied to the entire sheet, but with the amount thereof deposited per unit area varying over the surface of the document as a continuous function between a low value and a high value; or the topcoat layer may be applied to only portions of the document surface. Modulated application of the topcoat can be controlled using one of several available techniques; the standard print driver can be employed in a manner similar to that used for the printing of standard images with pigmented inks; the printer may be designed to accept a custom plug-in module procurable from a secure source (e.g., the printer manufacturer) which, when enabled by the standard print driver, controls the printing of a particular security mark design; or an internet-based vendor may provide a secure downloadable security mark design in much the same manner that printable postage stamps are provided through various vendors in conjunction with the U.S. Postal Service's Information Based Indicia Program.
    • 与具有光泽面漆沉积特征的喷墨打印机组合,一种在喷墨印刷纸上印刷安全标记的方法,其包括调节顶涂层沉积的步骤,而不是将其均匀地涂覆到片材的成像表面上。 调制沉积导致当以一个角度观看文件时可见的光泽变化。 用于调制的三种可选方案是:顶涂层可以施加到整个片材上,但是其在文件表面上每单位面积沉积的量在低值和高值之间交替; 顶涂层可以施加到整个片材上,但是其每单位面积沉积的量在文件的表面上变化,作为低值和高值之间的连续函数; 或者顶涂层可以仅施加到原稿表面的部分。 可以使用几种可用技术之一来控制面漆的调节应用; 标准打印驱动程序可以以类似于用彩色油墨印刷标准图像的方式使用; 打印机可以被设计为接受可从安全源(例如,打印机制造商)获得的定制插件模块,当由标准打印驱动程序启用时,它可以控制特定安全标记设计的打印; 或基于互联网的供应商可以以与美国邮政服务的基于信息的标记计划一起通过各种供应商提供可打印邮票的方式大致相同的方式提供安全可下载的安全标记设计。