Don’t choke on your coffee on hearing about Jean Hwan Ju’s RITI printer concept that makes use of coffee grounds or tea dregs instead of ink for printing. Hence, while ensuring your printer never runs out of toner ink, it also serves as a cleaner and greener predilection. What you need to do is pour the coffee or tea dregs into the cartridge with some water. Keep moving the cartridge left and right while you print. It calls for a manual cleaning of the case when you’re done with it.
No need to connect it to a power source. So, it’s an eco-friendly method to exploit even the last lees to the fullest and it’s always better to utilize the extracts, which we would otherwise throw away.
Via: Cnet