An eco-friendly printer that turns coffee into ink, you had to think about it! That's what RITI does by designing its ecological printer around a simple process: the printer recycles the coffee grounds directly and uses them for ink.
A gadget that participates in the "Greener Gadgets Design Competition" and that hopes to win the prize of $ 5.000 offered to the winner so that the latter is able to launch the production of his find on a large scale.
http://www.pcworld.fr/actualite/riti-coffee-printer-l-imprimante-ecolo-qui-marche-au-cafe/26001/