What if you could “unprint” and reuse paper?
Rabu, 14 November 2012
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In offices the world over, heaps of printouts and photocopies from laser printers get used once before being discarded, or tossed on shelves to collect dust indefinitely. But what if they could be wiped clean and used again?
An engineering team at the University of Cambridge in the UK has figured out how to erase pages by vaporising common toners using a laser-based technique that doesn't damage the underlying paper. It can delete words and images printed on paper.
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