Is your canon-mx920-printer-offline. Reconnecting the device to the wifi router is a simple remedy for this type of problem. The 5 steps to reconnect it are outlined below.
• Locate and push the wifi button on your Canon printer. • Continue to hold it till the wifi light blinks. • Press the WPS button on the router when you see the wifi light blinking blue repeatedly. • The light will continue to flash while the available networks are being sought and linked to the access points.