Canon G1020 series Online Manual page 200

If it still does not improve, go to the next step.
Clean the print head deeply.
Step4
After cleaning the print head deeply, print the nozzle check pattern and check the result.
• From the computer
◦ For Windows:
Deep Cleaning
◦ For macOS:
Deep Cleaning
If it does not improve, turn off the printer, wait for more than 24 hours, and go to the next step.
Clean the print head deeply again.
Step5
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.
Perform ink flush.
Step6
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.
• For Windows:
Ink Flush
• For macOS:
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
Important
• Performing ink flush when the remaining ink level is not enough may damage the printer.
Before performing ink flush, check the remaining ink level of all colors.
For Windows:
Ink Flush
For macOS:
Ink Flush
Note
• Although some air may enter the ink tube, it is not a malfunction. No problem if the nozzle check pattern
is printed correctly.
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