We've seen plenty of printers in our time, but this one is most definitely to our taste. Korean designer Jeon Hwan Ju, likely a beans person, has percolated a potent brew that utilizes coffee or tea dregs as the replacement ink.
The result is the RITI inkbox, which probably is good for only sepia printouts, but is the kind of green tech we like very much. Coffee or tea dregs are placed into the cartridge, mixed with a little water. However, using this requires powering it along with a little muscle, moving the cartridge left and right in the slot while drawing on the paper. Not quite the most efficient workhorse for your home business, but at least it's the only aromatic printout you can personalize, from Lipton to Lavazza.