Load A4 -size plain paper in the printer.
Access the printer driver window.
Click Print Head Nozzle Check on the Utility tab.
Follow the on-screen instructions.
If print quality has not improved after repeating nozzle check and head cleaning 3 times, wait for at least 6 hours without printing, and then run the nozzle check again and repeat the head cleaning if necessary. We recommend turning off the printer using the button. If print quality has still not improved, run Power Cleaning.