If you didn't get the memo sent around in the last couple of years, printers don't actually print anything anymore. In fact, they don't really do anything anymore. The only thing they're good for is making music. Seriously, check out the printers above playing Dylan.
The band is made of more than just printers, copiers, modems and other computer gadgetry join in the mix of playing Bob Dylan's The Times They Are a-Changin' (haha! get it? it's because no one uses these things anymore) and it all comes together pretty well. Here's a video showing how the commercial for Brother, directed by Chris Cairns, was made: