Chris, in this bug report a user has problems with Ghostscript's PostScript on a Toshiba printer and the problem goes away when suppressing Ghostscript's page compression ("psdebug" option for the pdftops CUPS filter). So it is possible that the compatibility of Ghostscript's PostScript with PS printers gets better when sending the pages uncompressed. So I recommend you to first ask the users to turn off compression via
lpadmin -p <printer> -o psdebug=true
and only if this is not sufficient do deeper investigation.
Chris, in this bug report a user has problems with Ghostscript's PostScript on a Toshiba printer and the problem goes away when suppressing Ghostscript's page compression ("psdebug" option for the pdftops CUPS filter). So it is possible that the compatibility of Ghostscript's PostScript with PS printers gets better when sending the pages uncompressed. So I recommend you to first ask the users to turn off compression via
lpadmin -p <printer> -o psdebug=true
and only if this is not sufficient do deeper investigation.
To get back to the original configuration, run
lpadmin -p <printer> -R psdebug