Load A4-size plain paper in the printer.
Select Maintenance on the home screen.
To select an item, use the buttons, and then press the OK button.
Select Nozzle Check.
Follow the on-screen instructions to print the nozzle check pattern.
Examine the printed pattern.
Select Yes, and then follow the on-screen instructions to clean the print head.
When cleaning is finished, print the nozzle check pattern again. Repeat cleaning and printing the pattern until all lines are printed completely.