The Dell you mention looks very similar to
this Lexmark X3350 High Definition AIO Photo Printer. A lot of Dell printers have been re-badged Lexmarks, so you might find the Lexmark driver will work.
Try
here for the download.
No promises though....

Post back if it works - you might help someone else. In fact, post back if it doesn't, you might save someone from wasting their time.