Printing Maintenance
Print Head Deep Cleaning
If print quality does not improve by standard print head cleaning, try print head deep cleaning, which is a more powerful process. Print head deep cleaning consumes ink, so perform this procedure only when necessary.
1 Prepare settings.
Connect TV to the printer and turn them on.
See “Connect TV to the printer.” on page 13.
2 Start Print Head Deep Cleaning.
(1)Use the 
buttons to select Tool Box from the menu screen and then press
the 
button.
(2)Use the 
button to select Deep Cleaning
and then press the 
button.
(3)Use the 
buttons to select Yes and then
press the 
button.
Important
Do not perform any other operations until the print head deep cleaning finishes. This takes about one minute.
When print head deep cleaning finishes, the confirmation message is displayed. Select Yes.
note
After print head deep cleaning finishes, print the nozzle check pattern to verify that the print head nozzles are clean.
See “Printing the Nozzle Check Pattern” on page 56.
If the problem remains, replace the ink tank.
See “Replacing an Ink Tank” on page 60.
If ink tank replacement does not resolve the problem, the print head may be worn out. Contact a Canon service representative.
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