In Ubuntu ‘hoary’ it appears that it isn’t possible to set up a printer separator (sometimes called a burst page or Job Sheet) for a CUPs print queue. The Ubuntu print gui, (System->Administration->Printing) just doesn’t expose that option. Usually it can be set in though the web interface to CUPs (localhost:631), but that is disabled.
To enable a JobSheet, edit the file
/etc/cups/printers.conf to look
something like this:
# Printer configuration file for CUPS v1.1.23
# Written by cupsd on Thu Aug 4 11:03:47 2005
JobSheets unclassified none
The unclassified refers to a file in
/usr/share/cups/banners/ that is just a chunk of PostScript that gets prepended to the print jobs. If you feel like hacking PostScript, you can create your own burst page.