Canon MP490 series On-Screen Manual page 584

On-screen manual

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Check the results

To check whether the print quality has improved, click Print Check Pattern. To cancel the check

process, click Cancel.

Cleaning consumes a small amount of ink. Deep Cleaning consumes a larger amount of ink than

Cleaning the print heads frequently will rapidly deplete your printer's ink supply. Consequently,

perform cleaning only when necessary.

If there is no sign of improvement after Deep Cleaning, switch off the machine, wait 24 hours, and

then perform Deep Cleaning again. If there is still no sign of improvement, see "

Ink Is Not Ejected

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