Any printers that you share using Mac OS X v10.5 Leopard or later will be visible to other Macs on your local network that are running Mac OS X v10.2 or later.
Using printers being shared by other Macs
When you add a printer in Mac OS X v10.5 Leopard or later, you will see printers on your local network that are being shared by other Macs running Mac OS X v10.4 or later. These printers will display "Bonjour Shared" in the Kind column of the dialog sheet.
Note: Use the same printer driver version on the computer sharing the printer and the computer printing to the shared printer, to avoid an issue where an application unexpectedly quits when printing to a shared printer.