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公开(公告)号:US20120163869A1
公开(公告)日:2012-06-28
申请号:US13373488
申请日:2011-11-16
申请人: Jason Morgan , John F. Crichton , Raymond G. Rossborough , Timothy G. Armstrong , Matthias H. Regelsberger
发明人: Jason Morgan , John F. Crichton , Raymond G. Rossborough , Timothy G. Armstrong , Matthias H. Regelsberger
CPC分类号: G03G21/043
摘要: A method and system for printing documents with one or more embedded security features is provided. Security features are embedded in the document by co-printing magnetic and non-magnetic toner on a receiver before fixation by a fixing station. The combination of magnetic and non-magnetic toners in the image results in image elements that easily show alteration or are undetectable by visual means.