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A piece of the reusable paper, eight hours ago read ‘Reusable Paper. Xerox Parc Inside Innovation at Xerox’. Now it is blank. (Source: Michael Kanellos/CNET Networks)

An outlandish Bond-esque idea actually may deliver real environmental and financial promise

What self respecting paper company would look to develop paper that could be reused multiple times at an affordable price? One that is in the printer, apparently. The Palo Alto Research Center (PARC) a child of printing giant Xerox have been developing a unique paper with fading “ink” that it soon hopes to market.

The process requires the works — a special printer and a special type of paper — but the results are intriguing. After 16 to 24 hours the “ink,” once printed clearly on the page fades. This could have numerous uses such as being used for memos, restaurant menus, and much more. After the “ink” fades, the paper can be reused.

The paper utilizes a coat of photosensitive chemicals, which darken when exposed to UV light. The printer uses no real ink, but writes in UV light. Users can wait for the ink to fade, or put it back in the printer, which will automatically wipe anything on the sheet, even if it hasn’t yet faded.

According to Xerox, the technology is only a few years away from hitting the market. Eric Shrader, area manager, energy systems, device hardware laboratory at Xerox says one key advantage is that the same sheet of paper, in testing, has been shown to be able to be reused hundreds of times. Only damage or crumpling would prevent reuse.

The end result is a large savings in energy and production costs. Reusing is better than recycling or making new material from scratch in that it takes less energy and resources. It takes 204,000 joules to make a sheet of standard 8.5×11 paper, enough power to run a 60 watt lightbulb for an hour. It takes 114,000 joules to recycle the same size piece of paper. Printing that size on a traditional printer requires around 2,000 joules.

The UV printer only requires 1,000 joules to print with erase, or 100 joules to print to a faded sheet. Thus not only are the paper production costs dramatically decreased, but the printing costs are as well. According to Schrader, “Being able to reuse paper is a big energy win.”

PARC has focused heavily on power usage over the years. The enterprising center helped to create the PC, inkjet printing, and Ethernet networking. In its early days it often failed to properly secure its inventions, so other companies like Apple Computer openly “borrowed” from it. Today the center focuses on developing, securing, and licensing new innovative technologies.

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