From the Maxisys Pro User manual page 77:
Wired Network
This option allows you to enable or disable the wired network connectivity, as well as to perform Ethernet configuration.
To operate Ethernet configuration
1. Tap the Settings application on the MaxiSys Job Menu.
2. Tap the Wired Network option on the left column.
3. Tap the ON/OFF button to enable the Wired Network connection. If the connectivity is enabled the button turns blue, or if disabled the button turns gray.
4. Tap the ○> button to the right of the Ethernet Configuration option, a setup window displays.
5. Select a connection type:
DHCP – obtains the LAN IP address automatically
Static IP – allows manual input of IP address
6. If Static IP is selected, you need to enter the IP values manually.
NOTE: If you are not sure about the specific IP address values, please contact your network administrator.
7. Tap Save to save the Ethernet configuration setting; or tap Cancel to exit without saving.
8. Tap the Home button on the top left corner to return to the MaxiSys Job Menu. Or select another setting option for the system setup