Fnords

http://news.yahoo.com/news?tmpl=story&cid=1093&u=/pcworld/118664&printer=1


"According to experts, several printer companies quietly encode the serial number and the manufacturing code of their color laser printers and color copiers on every document those machines produce. Governments, including the United States, already use the hidden markings to track counterfeiters.

"Peter Crean, a senior research fellow at Xerox, says his company's laser printers, copiers and multifunction workstations, such as its WorkCentre Pro series, put the "serial number of each machine coded in little yellow dots" in every printout. The millimeter-sized dots appear about every inch on a page, nestled within the printed words and margins. . . . .

"Neither Crean nor Pagano has an estimate of how many laser printers, copiers, and multifunction devices track documents, but they say that the practice is commonplace among major printer companies.

"The industry absolutely has been extraordinarily helpful [to law enforcement]," Pagano says."