Canon MX450 Series Online Manual page 347

5. Check the results
To check whether the print quality has improved, click Print Check Pattern. To cancel the check process, click
Cancel.
Important
Deep Cleaning consumes a larger amount of ink than Cleaning.
Cleaning the print head frequently will rapidly deplete your printer's ink supply. Consequently, perform cleaning only
when necessary.
Note
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."
Related Topic
Use Your Computer to Print a Nozzle Check Pattern
89