This little guy arrived the other day, just in time for a quick Arduino and Beer trip I'm taking up to the Bay Area. It's a little thermal printer, similar to the ones in cash registers. It's light, and it seems to only need one or two amps at five volts. I have a battery pack that puts out two amps at that voltage. My brother has some plans.
The manual is kinda fun .. it's chinese and bad english .. but the last page shows some extended characters, one of which is a solid black square, so I might be able to do QR codes on self-adhesive paper. Extra checksums plz!
Some of the docs mention RS232, so I'm gonna pack a usb-to-db9 connector with me. They also mention useful configuration bits for running on battery power, so we're in the right neighborhood for a battery-powered application. Hey and the example code is for Processing! Plus, there's a link to some good-looking Arduino hackery. I think we'll hit the ground running!