At the Gartner Symposium/ITxpo, Xerox shows off a disappearing-ink technology that enables people to reuse a piece of paper

At the Gartner Symposium/ITxpo in Las Vegas, Steve Hoover, vice president with Xerox Research Center Webster, shows off a technology being developed in the company's labs that enables people to reuse a piece of paper.

The paper contains a photochromic compound that makes ink disappear when hit by direct heat.

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