Here’s another eco-friendly printer, and like the pencil printer it doesn’t use a conventional ink. Instead it uses used ground coffee to print its documents, you just pour used coffee grounds into the printers’ cartridge and then move the cartridge from side to side till your document has printed. So basically your doing quite a lot of the printing work for it, but this whole concept has no need for a power source or ink cartridges, so it really is eco-friendly.
Tags: cartridge, concept printer, crazy, Hp Ink cartridge recycling, printer, Recycling