QUOTE(Xairbusdriver @ Mar 13 2007, 06:34 PM) [snapback]121789[/snapback]
Apple's Printer Utility is not very useful in editing any of the critical info on an installed printer, it's usually necessary to delete and re-add, especially for an IP addressed printer.
You could always go here: http://127.0.0.1:631/printers
or here: http://127.0.0.1:631/admin
log in as root followed by root's password.
Mind you, you need to do a little reading first.