Command Center

Samba has printing support enabled by default. To disable printing support, use the following configuration settings in /etc/samba/smb.conf:

load printers = no
 printing = bsd
 printcap name = /dev/null
 disable spoolss = yes

Now, restart Samba. No more printing support

REFERENCES
http://consultancy.edvoncken.net/index.php/HOWTO_Disable_printing_in_Samba