Date: Friday November 11, 2005 06:04:00 pm
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How it works:
http://www.eff.org/Privacy/printers/docucolor/
Automated decoder at http://www.eff.org/Privacy/printers/docucolor/#programThis is an image of one repetition of the dot grid from the same Xerox DocuColor 12 page, magnified 10x and photographed by the QX5 microscope under illumination from a Photon blue LED flashlight. Note that the increased contrast under blue light allows us to see the entire dot pattern clearly.
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