Another thing you could try is the "old school" method (borrowed from Slackware) of printer configuration.
Open a web browser with this url:
http://localhost:631/What should appear in the browser is the CUPS web interface. Click on
Administration, then click on
Add Printer. CUPS should search for printers attached to your system, and any accessable networked printers.
If your printer appears in the list, select that printer, then select an appropriate driver. You will be prompted for a username and password. CUPS at this point is expecting the superuser password as this is a system administration function. Type in
root for the
username, then enter the superuser password where it says
password. Click on OK.
At this point, the printer queue should be created, and you will be given the opportunity to choose any default options you wish to set for that printer.