For many years (decades?) we’ve heard about the paperless office, but more and more it appears that technology is driving use to use MORE paper. In an attempt to green up the printer/copier, Toshiba TEC is working on reducing paper use or at least being able to recycle more paper. No special paper is required, and the special toner loses it’s color when heated so that it can be reused. While the ink disappears, the printing process does leave an imprint on the “clean” paper.
There’s obviously some drawbacks, such as the imprint for security reasons or not being able to leave the papers in a hot places like the dashboard of a car on a hot day, but it is still only early technology.