Using printers


Just installed the release version of MacOS X and I've a problem. I'm using in my network a samsung printer that has an additional tray and a duplex option. When I install a new printer on MacOS X I'm able to select a PPD only if I specify that the printer is an LPR printer with an IP number but, when I print, I'm not able to select the additional tray or the duplex options.
If I install the printer as Appletalk I'm not able to select the PPD so the Mac doesn't even know that my printer has some other options. Could anyone help me?

Best regards
Andrea Marucci