The Pentax PocketJet 3 is “a printer that is small enough to take on the road.” Sure, it prints only in black and white, and uses thermal paper, like old fax machines once did. But most businessmen could use a battery-powered device that’s just “about the size of a big stapler” and can connect wirelessly to a computer via infrared or Bluetooth.
Price: $349
Source: Inc.

(From the magazine)