Cups notes

Try $ lpoptions -l -d <PrinterName> -- that would list options that 
written in CUPS ppd file, which defines printer configuration, including 
banners, etc.

you can change any option with '-o option=value' or remove option
with '-r option'. Check `man lpoptions`

I've always used the browser to administer cups. Try going to
http://YOUR_IP:630 (or is it 631?) and
you should get a cups web page. I
think you can use your root account to log into it and manage print jobs,
add/delete printers, etc.

Neil

The document at this url
http://www.sun.com/bigadmin/content/submitted/install_cups.html
is
extremely helpful to fix the problem.