samba-2.4.4-3 from Red Hat Rawhide Using the following simple printcap file (one line, many aliases), only one printer is visible from a Win2k client with "net view \\server", the Optra45n_1. lp|Lexmark|lp2|HPLJ4V|lp3|Optra45n_1|lp4 If I change this to remove the pipe separators and put each printer name on a line by itself, the net command reveals all seven printer names.
BTW, I'm using printing=lprng.
That's not a bug - it displays only the primary name, but you can connect to all of them by explicit name.