Salvador DaBot, so-called by its fathers due to fancy moustache and beret add-ons, is an artist who draws portraits of the persons it meets. Such an expensive printer has the advantage of using a real pencil, providing to its customers the impression of a real drawing experience, which it is!
Technically, the robot captures a photo using its integrated web-cams, extracts the contours of captured face, and then computes strokes useful to render nice shades of grey. Moreover, rather than drawing the lines like a normal printer usually does, Salvador draws surfaces, one after the others, which looks more natural.
Finally, because of its well-known artistic talents, Salvador DaBot was invited to several prestigious places around the world, where it spent hours drawing and used many pencils to realize masterpieces of the guests invited to these events.