HP Envy 4500 printer is one of the finest all-in-one printers from HP. It helps users to print from anywhere by using apps to print wirelessly from their mobile devices. At times, your HP Envy 4500 driver printer gets offline. It can be an annoying error and can halt your workflow. HP printer users can resolve the issue of “HP printer offline” by following a few effective solutions.But before, it’s important to discuss the plausible reasons that cause this error.

https://medium.com/@martin.cashplum/bring-hp-printer-online-via-hp-envy-4500-driver-ebb6366a3a39