Finally, you should check if the printer’s IP is correctly assigned. Briefly explained, if an IP address has four groups of digits, the IP of the printer and the IP of your PC must match in the first three.
For example, if your PC has IP 192.168.0.120, the printer must have IP 192.168.0.X (where X is any number between 1 and 254). If this is not the case, you must change the IP address of the printer because, otherwise, you will not be able to use it from your PC.