If print quality does not improve by the standard cleaning of the print head, clean the print head deeply. Cleaning the print head deeply consumes more ink than the standard cleaning of the print head, so clean the print head deeply only when necessary.
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Check that the printer is turned on.
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Press the Setup 
button until 3 appears on the LCD.
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Press the Black button or the Color button.
The printer starts cleaning the print head deeply.
The cleaning will be complete when the ON lamp lights after flashing.
Do not perform any other operations until the printer completes the deep cleaning of the print head. This takes about 1 to 2 minutes.
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Check the print head condition.
To check the print head condition, print the nozzle check pattern.
If the problem is not resolved, turn off the power and clean the print head deeply again after 24 hours.
If the problem is still not resolved, replace the FINE cartridge with a new one.
If the problem is still not resolved after replacing the FINE cartridge, your printer will require servicing.
If your product issue was not resolved after following the steps above, or if you require additional help, please create or log in to your Canon Account to see your technical support options.
Or if you still need help, visit our Canon Community by clicking the button below to get answers:
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