no active directory guys.
just a registered domain.its actually an internet cafe.so i did disabled the simple file sharing and i finally got the security tab.yes i also use ntfs.

scenario1:as i said b4 both printer server and clients do have the same login credentials(same usr/pass).i changed the pass to the printer server and removed other users that have access on printers.result :couldnt even connect through clients.

scenario1:i kept the new pass for the printer server and added "everyone".no luck.

any other ideas?