This pocket size printer doesn't use ink. Which means no ink cartridge or ribbons. The image is created on the paper based on tiny crystals embedded in the paper. (I'm sure that's cheap...)
"Imagine an affordable printer that is smaller and thinner than anything you've seen before. Now imagine that when you "just add paper" to it and press a button, it magically prints an affordable, high quality, and long lasting digital print faster than you thought possible. Keep imagining...printers in your pocket, on your desktop, embedded in your television or PC, or even hanging on the wall. And more...printing beautiful photographs of all sizes, posters, identification cards, or labels fast without ever needing to buy an inkjet or thermal cartridge ever again. Imagine NO MORE! This is real, it is being developed by ZINK Imaging, and soon you will be able to experience the joy of printing with ZINK."