You have not set your printer as a default printing device. The printer is set to the printer in offline mode or due to an outdated printer driver. If the printer status is Printer Offline , do not panic there may be many reasons for this cause and it will be unable to communicate with the computer or print any documents. This is a common problem and can be very frustrating, and hence can stop all your work. Step by step guide to fix printer offline issues. Factory reset printer + restart.