Maintenance ProcedureFollow these steps to restore print quality if printing becomes faint or uneven, colors are incorrect, or printingresults are not as expected (as when parallel lines are not printed parallel).Note• Increasing the print quality in the printer driver may give better results.Changing the Print Quality and Correcting Image Data (Windows)Changing the Print Quality and Correcting Image Data (Mac OS)To Correct Faint or Uneven Printing:Step1 Print the nozzle check pattern.From your machinePrinting the Nozzle Check PatternFrom your computerPrinting a Nozzle Check Pattern (Windows)Printing a Nozzle Check Pattern (Mac OS)Step2 Examine the nozzle check pattern.Some missing lines or horizontal white streaks in the pattern:Step3 Clean the print head.From your machineCleaning the Print HeadFrom your computerCleaning the Print Heads (Windows)Cleaning the Print Heads (Mac OS)After cleaning the print head, print and examine the nozzle check pattern again: Step1Problem not resolved after you perform from step 1 to step 3 twice:Step4 Perform deep print head cleaning.From your machineDeep Print Head CleaningFrom your computerCleaning the Print Heads (Windows)Cleaning the Print Heads (Mac OS)205