SATO CL4NX Plus Operator's Manual page 340

If you have selected [Print] in the [Update Screen], press the
To print the QR code, use media of more than 33 mm (1.3") in length and more than 33 mm (1.3") in
width (not including the liner).
[Advanced]
Set the advanced function for the interface.
The setting items are as follows:
ARP Announcement
Set the ARP announcement.
Firewall
Set the functions for the firewall.
[ARP Announcement]
Set the functions for ARP announcement.
The ARP announcement is useful for updating other hosts mapping of a hardware address when the
IP address or MAC address of the sender has changed.
The setting items are as follows:
button to print the QR code.
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[Network]