Deep Print Head Cleaning
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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Make sure that the printer is powered on.
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Press the Setup button, use the 
buttons to select Maintenance, and press the OK button.
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Use buttons to select Deep Cleaning and press OK button.
The printer starts cleaning the print head deeply.
Do not perform any other operations until the printer completes the deep cleaning of the print head. This takes about 2 to 3 minutes.
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Check the print head condition by printing 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 two deep print head cleanings don't resolve the problem, perform an ink flush.
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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