Print Quality is Poor or Contains Errors 145TroubleshootingPrinting is Blurred/Colours are Wrongn If a specific colour does not print, check whether the corresponding ink tank isempty. Replace if necessary.n Print the nozzle check pattern to ensure that ink is output correctly.If the nozzle check pattern does not print correctly, clean the print head.á Printing the Nozzle Check Patterná Print Head CleaningIf the problem is not resolved after cleaning the print head several times, the print headmay be worn out. Contact a Canon service representative.Note ä Always ensure you dispose of the protective cap and protective tape from aprint head.n Ensure you are printing on the correct side of the media.You can only print on one side of certain media.