26Parts and Functions of the PrinterOperation PanelHold down the RESUME button until the POWER light starts to flash.Then,release the button.The following operations are performed, depending onhow many times the light flashes.• If you release the button after the light flashes once:Print head cleaning is performed.Cleaning the Print Heads• If you release the button after the light flashes twice:A Nozzle Check Pattern is printed out.Printing a Nozzle Check Pattern• You can also perform these tasks from the printer driver.Using Maintenance FunctionsPrinter MaintenanceNoteWindowsMacintosh