Canon MG6400 series Online Manual page 179

Deep Cleaning
Deep Cleaning is more thorough than cleaning. Perform deep cleaning when two Cleaning
attempts do not resolve the print head problem.
1. Select Cleaning from the pop-up menu on the Canon IJ Printer Utility
2. Click the Deep Cleaning icon
When the dialog opens, select the ink group for which deep cleaning is to be
performed.
Click to display the items you need to check before performing deep cleaning.
3. Execute deep cleaning
Make sure that the machine is on and then click OK.
Click OK when the confirmation message appears.
Print head deep cleaning starts.
4. Complete deep cleaning
The Nozzle Check dialog 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, the ink may have run out or the print head may be worn. For details on the
remedial action to be taken, see "Ink Is Not Ejected."
Related Topic
Use Your Computer to Print a Nozzle Check Pattern
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