To change the printer IP address and network settings, first plug the printer into your network.
Press and hold the right hand button for 5 seconds. This will print a settings card. You can see the IP address given to your printer.
This video shows you these steps.
Once you have the IP address.
Open up a web browser on your PC, and simply type in that IP address.
You will be asked for a User name and Password. The factory defaults are:
User =root
Password = idcard
Type these in and you will be able to make changes to your IP address and network settings.