HP printers are used at very large scale to print documents all over the world. Printer offline is one of the most common issue faced by most of the printer users. If printer says offline HP then try to reconnect your wireless printer once again. If you are unable to solve the problem then get help from experts to fix the problem.
Go to the Start icon on the bottom left of your screen then choose Control Panel and then Devices and Printers. Right click the printer in question and select “See what's printing”. From the window that opens choose “Printer” from the menu bar at the top. Select “Use Printer Online” from the drop down menu.