A static IP address allows you to control the IP address of your printer.
Normally you should use the DHCP (automatic) method built into all routers to configure your printer and computer, unless you want to control your network. In that case, you can manually assign a static IP address. If you assign a static IP address, you must determine if you are conflicting with the DHCP server on your network and understand how to set the IP address on the same subnet as your host PC. A DHCP server could change the IP address. The advantage of using a static IP address is that the address will never change. For a network that does not have DHCP server, you must manually assign the IP address. While the DHCP service is built into routers, it is not built into access points or available on ad hoc networks.