Re: DELL Photo 926 Printer
sadly, it looks like your printer is not yet supported under linux. Despite the fact that dell distributes ubuntu computers they have failed to write a printer driver for that model for linux. That is not to say that it will never work but someone has to reverse engineer a driver that will work for it. Here is a link to your printer on the linux foundation website which provides a info on linux compatibilities and printers.
if ignorance is bliss, where are all the happy people