Xerox Thwarts Forgery with InfraredMark Specialty Printing

Xerox, Stamford, Conn., introduced a new security technology which prints variable text that can only be read when exposed to infrared light. The technology can be used to authenticate tickets, coupons, certificates, licenses, identification papers and other high-value documents. InfraredMark Specialty Imaging Font does not require special ink, but is printed with ordinary toner—the “dry ink” that forms xerographic images. It can be produced on standard Xerox digital systems using standard papers, and if the document is copied or altered, the infrared text will become substantially distorted and illegible under infrared light.