Canon TC-20 Online Manual page 343

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If the pattern D or any color in the pattern C is not printed:
The cleaning is required. Select Also B, then go to next step.
11.
11. Select Yes on the cleaning confirmation screen.
The printer starts cleaning the print head.This takes about 2 minutes.
Important
• Do not perform any other operations until the printer completes the cleaning of the print head.
12.
12. Check message and select Yes.
13. Select Roll paper or Top feed.
13.
A nozzle check pattern is printed and two pattern confirmation screens appear on the touch screen.
14.
14. Repeat steps 9 through 13.
Important
• If there is no improvement after repeating the cleaning process twice, perform Deep Cleaning.
Deep Print Head Cleaning
(Example: Magenta pattern is not printed)
343

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