Think of the “Ink Removal Printer” as a reverse printer of sorts, as in this device removes the ink from sheets of paper, rather than print it. That’s right, engineers at University of Cambridge say they have found a way to delete toner ink from papers. When implemented commercially, this process would reduce the need of paper recycling and cut carbon emissions savings of up to 79%. Continue reading for a video explaining the process.

The method involves using pulses of laser that lasts just billionths of a second to vaporize toner without damaging the papers. A visible green laser is the most efficient at removing the ink, while ultraviolet and infrared lights are also effective.