I hate when i do not have answers so here we go...
On slitaz I failed to share a printer with samba but i could share a folder (i already did both with ubuntu).
I used swat to make it work (from the repository)
and if you get your printer to be shared let us know ;)

You can also go here http://librenix.com/?page=OpenSuSE
i have seen that there is a samba tutorial and it looked pretty easy, though i have not tried it with Slitaz.

I do not have access to my slitaz machine right now so i cannot make anymore test... Sorry. But i have this need that you explain so I will come back on this thread later this month.

Going on http://www.howtoforge.com/how-to-set-up-a-webgui-based-print-server-on-ubuntu-server-using--swat-cups-and-samba - yes, it's probably likely to make it work properly like that. SliTaz has both swat and cups needed by this tutorial hey. Some steps might be different though.