(UPDATE: Today, Xerox released an official press release on this topic.)

The New York Times reported last week that Xerox is working to develop an "erasable paper" system. The goal is to recycle paper documents produced by a company’s copiers potentially an unlimited number of times.

How? Without getting too technical, the prototype system prints a purple ink on specially coated paper with a light yellow tint. The printed information on the document "disappears" within 16 hours. You can then load the paper back into the copier. The researchers said that individual pieces of paper had been printed on up to 50 times, and the only current limit in the process appears to be paper life according to the The Times.

Why? Of the 1,200 pages the average office worker prints per month, 44.5% are for daily use. 21% of black-and-white copier documents were returned to the recycling bin on the same day they were produced.

Xerox has not yet decided whether it will commercialize its technology, Mr. Shrader (Eric J. Shrader, a computer scientist at PARC) said, but the goal is to create a system where the specially coated paper costs between two and three times standard copier paper, making the total cost of the system substantially less than conventional paper when paper is reused repeatedly. (See full article.)