How to Ping a Printer for a Mac

Click the 'Finder' icon in the Dock at the bottom of the window.
Highlight 'Applications' from the 'Places' list on the left side of the 'Finder' window.
Open the 'Utilities' folder and then double-click the 'Terminal' icon. An empty command prompt window will appear.
Type 'ping' followed by a space and then the IP address of your network printer. For example, if your printer's IP address is 10.1.1.7, you would type 'ping 10.1.1.7' into the command prompt.
Hit 'Return' on your keyboard to run the command.
Wait for the ping results to start loading in the window and then hold down the 'Control' and 'C' keys to halt the 'ping' command. If the results say the device responded to the data bytes, it means your network printer is online and connected.