Hey There, I am Sofia Carter. Let's have a look at the main reasons why your HP Printer Offline. To begin, check your internet connection. Ensure your internet connection is working. Alos, check if there's nothing in the way of your wireless router and your computer. Next, check the USB connection if you have a wired internet connection. Check to see if Offline Mode is turned on. If you're still having trouble printing, contact a printer expert.