Да и  главное  :)
в cupsd.conf

# Restrict access to the server...
<Location />
  Order allow,deny
  Allow From 10.0.7.0/24
</Location>

>[оверквотинг удален]
>    max log size = 50
>    dns proxy = no
> [printers]
>    comment = All Printers
>    path = /var/spool/samba
>    browseable = no
>    guest ok = yes
>    writable = yes
>    printable = yes
>    use client driver = yes