Canon BJC-3000 Series User Manual page 259

I Cleaning the Print Head
Cleaning the print head clears the nozzles. There are two ways to clean the print heads:
normal print head cleaning and deep print head cleaning. Always execute normal print head
cleaning first. If this does not correct the problem then execute deep print head cleaning.
Note
Cleaning the print head consumes ink, so clean the print head only when
necessary.
Normal print head cleaning
1
Open the Page Setup dialog box.
Normally, select Page Setup from the File menu.
2
Click the Utilities button.
3
After confirming that Print Head Cleaning is selected in the drop-down
menu, click the icon.
Printer Maintenance
Using the Macintosh Printer Driver 259