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 The printer is set to the printer in offline mode or due to an outdated printer driver.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 you have connected your printer over a wireless network, check it and see if it’s still on the network.
- Turn off the wifi on your router as well as on your printer, wait for a few minutes, and then turn it back on. See if the connection between printer and computer is re-established or not.
- Check to see if the printer and the router are on the same network. If your router use WPS method of connecting, check that the feature is enabled and working properly. You have to press and hold the physical WPS button on the router and on the printer for a few seconds to enable it.