Canon PIXMA G5020 Wireless MegaTank Printer - Manual (Page 347)

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, clean the print head again.
If it still does not improve, go to the next step.
Step3 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, wait for more than 24 hours, and go to the next step.
Step4 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.
Step5 Perform ink flush.
After performing ink flush, print the nozzle check pattern and check the result.
Ink flush consumes a great amount of ink. Frequent ink flush can rapidly consume ink, so perform it only when necessary.
How to Do Ink Flush
If the nozzle check pattern is not printed correctly even after performing ink flush, check the installing condition of
the print head.
Check Installation of Print Head
Check4 When an ink tank runs out of ink, refill the ink tank.
If the remaining ink level is below the lower limit line (A), refill the ink tank with the corresponding color of ink.
If you use the printer until the ink tank becomes empty, perform ink flush after refilling the ink tank.
Refilling Ink Tanks
How to Do Ink Flush
Check5 When using paper with one printable surface, check the correct printable side
of the paper.
Printing on the wrong side of such paper may cause unclear prints or prints with reduced quality.
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