Print on paper, then erase it,then again print it, you can do it 1000 TIMES.

NAME:-

Prepeat Rewriteable printer

Printer Features:-

Inkless

Tonerless

Reusable

It uses special PET plastic paper.Its amazing that you can use this paper to print again and again, it can reduce the deforestation at much extent as one PET plastic sheet saves 1000 papers. :)

COST : Around $5,500

~engadget