meaning of printer-is-shared attribute?

[dkastens.uos]

Hi,
it's not quite clear to me what the attribute printer-is-shared means.
I installed a cups-1.2.2 server and a client on different machines and played around with cups browsing. It doesn't matter if a printer in printers.conf has the directive "Shared Yes" or "Shared No". The printer is always visible on the client machine.
My goal is to hide the printers that are shared through samba from all linux clients. If I have two printers on my cups server, "samba_p1" and "linux_p1" for example, "samba_p1" should only be visible to the samba server but NOT to the linux clients. On the other side, "linux_p1" should not be shared by the samba server (that's simple) but it should be available to all linux clients through browsing. I don't want to add the printer manually on all clients. And I don't want to set up two separate cups servers for linux and samba.
Is this possible? Is this the goal of using the printer-is-shared attribute?