What should I do if I cannot print from my HP Envy 5540?

First, make sure the cable connections are secure and the printer is powered on — the On button should be lit white. Check the wireless status light to confirm the printer is connected to a network, and ensure the printer is set as your default printing device in your computer's settings. You can also visit www.hp.com/go/tools to download free diagnostic utilities to help fix common printer problems. (Page 3)