The printer displays a 'Cover open, please close cover' error message, even though the cover is closed.
This can happen if the lever on the cover open sensor is knocked off the switch assembly.
Take the following steps to try to determine if there is a hardware fault:StepsActions 1Remove and replace the cartridges from the printer. 2Disconnect the power cable and the USB cable. 3Check that the power cable is plugged directly into a wall socket. 4Reconnect the power cable. 5Close the printer cover.