Your printer might appear offline if it can't communicate with your PC. Check to make sure the printer is turned on and connected to the same Wi-Fi network as your PC. To find out if your printer is connected to Wi-Fi, see if your printer's built-in menu has options for checking, or check the printer's manual for instructions about how to add it to a Wi-Fi network. Then, to verify that your printer is not in Use Printer Offline mode, select Start > Settings > Devices > Printers & scanners,select the printer, and select Open queue. Under Printer, make sure Use Printer Offline is not selected.