Hey There, I am Anna Carter. Sometimes, when you open your printer and try to print or scan something, you get the HP Printer Offline error on your screen. The error message indicates that your HP Printer is either not connected to your computer or set to Offline. To fix this problem, you need to find out the exact cause behind the issue first. We suggest you begin with restarting your printer as well as your computer. Make sure the printer is turned on and in the ready state. The next thing you need to do is to check the printer status in the Windows Printer Folder. If it is set to Offline, disable the Use Printer Offline option. For more solutions regarding the HP Printer Offline issue, visit our HP Support webpage.