Printing with Gutenprint using Canon Pixma MP250 does not work

I'm using Haiku Alpha 3 on an ASUS EeePC 701 and have a Canon Pixma MP250 printer. I installed the printer and configured it to use Gutenprint as a driver. Printing does not work (see the video I made below):

http://www.youtube.com/watch?v=ekZ11qORe08