55Routine MaintenancePrint Head Deep CleaningIf print quality does not improve by standard Print Head Cleaning, try Print Head Deep Cleaning,which is a more powerful process. Note that cleaning the Print Head causes used ink to be absorbedin the ink absorber. Print Head Deep Cleaning consumes more ink than standard Print HeadCleaning, so perform this procedure only when necessary.1 Make sure that the machine is turned on, open the Front Tray, and extend theOutput Paper Support.2 Load a sheet of A4 or Letter-sized plain paper in the Rear Tray or Front Tray.3 Press the Paper Feed Switch to select the paper source where you have loadedpaper.4 Start Print Head Deep Cleaning.(1) Press the HOME button.The HOME screen is displayed.(2) Select Settings, then press the OK button.The Settings screen is displayed.(3) Select Maintenance, then press the OK button.The Maintenance screen is displayed.(4) Select Deep cleaning, then press the OKbutton.The confirmation screen is displayed.(5) Select Yes, then press the OK button.Print Head Deep Cleaning starts.Do not perform any other operations until Print Head Deep Cleaning finishes. This takesabout 1 minute 30 seconds.5 Check the condition of the Print Head.(1) Print the nozzle check pattern to check the print head condition.See “Printing the Nozzle Check Pattern” on page 51.If a particular color is not printed properly, replace the ink tank of that color.See “Replacing an Ink Tank” on page 43.(2) If the problem is not resolved, turn off the machine and perform another Print Head DeepCleaning after 24 hours.(3) If this does not solve the problem, the Print Head may be damaged. Contact your Canonservice representative.(4)
