Check that the printer is powered on
Make sure the printer is connected to the same Wi-Fi network as the computer
Restart the printer
Restart the computer
Turn off and unplug the printer for 30 seconds, then plug it back in
Check the printer’s display for error messages
Clear any paper jams
Refill ink or toner if needed
Open the printer queue and cancel stuck print jobs
Set the printer as the default printer
Disable “Use Printer Offline” in printer settings
Remove and re-add the printer
Update or reinstall the printer driver
Restart the router if the printer uses Wi-Fi
Try a different USB cable or port if using a wired connection
Run the printer troubleshooter if available
Check for firmware updates for the printer
Print a test page to confirm it is online