Welcome to Linux Questions!
If the Ubuntu icon under your signature is what you're using, you've got the wrong driver: the extension should be .deb and not .rpm.
and enter the name of the device. You'll be taken to a page where you can select both printer and scanner drivers. Choose full-feature driver for the printer, accept the conditions, and download the deb file for i386 (32-bit) or amd64 (64-bit).
To install, see this guide
PS You really shouldn't use an email address as a signature: there are spiders out there searching for them, so it's the quickest way to build a world-class spam collection!