To troubleshoot an HP printer that’s not printing, begin by checking that the printer is powered on and properly connected to your computer or Wi-Fi network. Ensure it’s set as the default printer and that there are no paused or stuck print jobs in the queue. Check ink or toner levels and clear any paper jams. If pages are blank or faded, run the printhead cleaning or diagnostic tool ... https://sites.google.com/view/hp-printer-not-printing-/home