TAG: Unprinting

Unprint It Please

Laser unprinter research

We have all heard of laser printers and most of us have used laser printers, but not an unprinter. A team of researchers from the University of Cambridge in England have created a laser unprinter that can remove ink without damaging the paper. Both methods use lasers, but the “unprinting” methods are very different. Laser printers use a laser to give individual “pixels” on a piece of paper a positive charge. The laser unprinter works by tracing the outline of the toner and then flash-frying it off using the device’s laser. The trick is vaporizing the toner without damaging the… read more