In an effort to reduce the amount of paper offices go through every day, the folks at Xerox have come up with a novel printing technique that seems fascinating. According to news.com, Xerox's self-erasing paper is specially coated, then printed on with what appears to be a purple ink. No toner is actually used in the system. When left alone, the ink will disappear in 16 hours. If you need fresh paper sooner, though, simply place the paper back into the printer/copier, and the sheets will act like clean... READ ON