Science & Tech
'Un-printer' could save money, trees: Researchers

Credits: Jamison_Judd, FlickrCC BY 2.0 license


Researchers at the University of Cambridge have successfully used laser technology to erase toner-print from paper, the first step towards the creation of what they call an "un-printer."

"What we need to do now is find someone to build a prototype. Thanks to low-energy laser scanners and laser-jet printers, the feasibility for reusing paper in the office is there," said Julian Allwood, leader of Cambridge's Low Carbon Materials Processing Group.

Allwood, along with PhD student David Leal-Ayal, were able to remove HP Laserjet black toner from standard Canon copy paper - without damaging the paper - using a variety of lasers.

If offices could use the technology, the researchers say it could save forests and cut carbon emissions dramatically.

"Material recovery through reusing eliminates the forestry step from the life cycle of paper and eradicates emissions arising from paper incineration or decomposition in landfill," Allwood said.

Sun News Videos

Mink farming

Nova Scotia produces half of Canada's mink fur.

Feminist 'consent underwear' spark debate

Do consent underwear just change the conversation from 'rape culture' to 'slut culture'?

Afghanistan's upcoming election

With an election rapidly approaching, change is on its way to Afghanistan. Good or bad, the world is watching.

Ezra Levant’s The Source is the most provocative and thought-changing multimedia show in Canada.

This show is 100% focused on the political battles taking place across Canada, in the United States...even around the world.

Michael Coren brings you strong, balanced opinions to challenge conventional thinking.

Byline brings you the stories you won’t hear anywhere else while exploring points of view that are all too often ignored.