Canon PIXMA TR4720, Online Manual

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After confirming that the FINE cartridge is installed properly, close the cover.
Check4
Are the print head nozzles clogged?
Print the nozzle check pattern to determine whether the ink ejects properly from the print head nozzles.
Step1
Print the nozzle check pattern.
After printing the nozzle check pattern, examine the pattern.
• For Windows: •
Printing a Nozzle Check Pattern
•
For macOS:
•
Printing a Nozzle Check Pattern
If the pattern is not printed correctly, go to the next step.
Step2
Clean the print head.
After cleaning the print head, print the nozzle check pattern and check the result.
• For Windows: •
Clean the print head
• For macOS: •
Clean the print head
If it does not improve, go to the next step.
Step3
Clean the print head again.
After cleaning the print head again, print the nozzle check pattern and check the result.
If it still does not improve, go to the next step.
Step4
Clean the print head deeply.
After cleaning the print head deeply, print the nozzle check pattern and check the result.
• For Windows: •
Clean the print head deeply
• For macOS: •
Clean the print head deeply
If it does not improve, turn off the printer for more than 24 hours without disconnecting the power plug, and go to the next step.
Step5
Clean the print head deeply again.
After cleaning the print head deeply again, print the nozzle check pattern and check the result.
If it still does not improve, go to the next step.
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