User's Guide Improving Print Quality o There are broken lines or missing segments: The print head nozzles may be clogged. Go to the next step. Note: The test pattern may vary by model. 5. Hold the y button down for three seconds until the power light starts flashing. Print head cleaning starts. 6. When the power light stops flashing, print a nozzle check pattern again. Repeat cleaning and printing the pattern until all lines are printed completely. Related Information & “Loading Paper in the Rear Paper Feed” on page 15 Checking and Cleaning the Print Head - Windows 1. Load A4-size plain paper in the printer. 2. Access the printer driver window. 3. Click Nozzle Check on the Maintenance tab.
4. Follow the on-screen instructions. Related Information & “Loading Paper in the Rear Paper Feed” on page 15 & “Windows Printer Driver” on page 46 Checking and Cleaning the Print Head - Mac OS X 1. Load A4-size plain paper in the printer. 2. Select System Preferences from the menu > Printers & Scanners (or Print & Scan , Print & Fax ), and then select the printer. 3. Click Options & Supplies > Utility > Open Printer Utility . 4. Click Nozzle Check . 5. Follow the on-screen instructions. 42