Yes, this is something that we need the most…a Printball Paintball Printer!
Lol… I wonder if you can “miss”…
The PrintBall is like an Ink-Jet printer using a PaintBall Gun as printhead. The gun is mounted on a custum made pan & tilt unit which is connected to a Max/Msp based software through an Atmel chip [programmed in Basic]. The software allow the users to load and analyze images. The resolution of the image and the space between the point [definition the image] can be ajusted.
Because the document is printed from a central point the number of steps by points send to the pan & tilt, which is moved by two stepper motors, one for each axe horizontal and vertical, determine the space between each point.