I think this is such a great idea. Now someone please invent it because I spend way too much money on print cartridges.
If the RITI coffee printer existed as a real-world product, you could do just that. The design calls for spent grounds to be poured into a cartridge and for the printing mechanism to be manually moved back and forth to create an image. I think the whole "manual labor" thing takes the eco-friendly concept a bit too far, but if old coffee could actually be used for ink I would be all for it. It would also infuse a delightful scent into your resume that would give you the edge on any job application. Plus you could lick your documents if you were ever really jonesing.
From Gizmodo via Core 77 via Inhabitat via DVICE]