A weird snippet from this months excellent The Ecologist magazine:
"A US chef has developed a range of paper meals. Using a special ink created from liquidised food, Homaru Cantu prints edibles pictures of actual meals on sheets of soya bean and potato paper."
I searched around the Internet to find out more. Turns out he uses a Canon i560 inkjet printer. He's got more idea's too. Personally, I think mixing chefs with technology is a bad idea.