Canon MX520 series Online Manual page 98

Print head deep cleaning starts.
4. Complete deep cleaning
The Nozzle Check dialog box opens after the confirmation message.
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