I just removed my Canon S750 from USB (using the wizard) and replaced it by a HP 5550, which is said to work "perfectly" under Linux.
I used the wizard to configure it and every thing seemed ok, but when I click the "test printer" button nothing is output, despite the message saying that a page was sent to the printer.
Note that the HP 5550 works under Windows, and that the Canon worked under Knoppix (notwell but still worked).