Monday, July 25, 2005

Tracking Documents via Printers/Copiers

Apparently, many color laser printers and copiers encode information like the serial number and manufacturing code on each page that is printed. The dots used to encode this information are very small, all of them covering less than one-thousandths of a page, and yellow. You may be able to see these dots if you shine a blue LED light on a page and use a magnifier. According to Peter Crean of Xerox, there is no way to turn this off. [from PC World]

1 comment:

newsandrumor said...

I have been researching and tracking this story. Any further info. you happen to run across would be informative. It is my guess that this effort was specifically directed at Fedex Kinkos, as they are one of the largest public users of high end Xerox color and b/w printers. HP is more ubiquitous to the typical user. This may have been prompted in the last few years since Kinkos began allowing anonymous cash cards for purchases.