Canon MX720 Series, Online Manual, Page: 107 / 248

Cleaning the Print Head Deeply
If print quality does not improve by the standard cleaning of the print head, clean the print head deeply.
Cleaning the print head deeply consumes more ink than the standard cleaning of the print head, so clean
the print head deeply only when necessary.
You need to prepare: a sheet of A4 or Letter-sized plain paper
1. Make sure that the power is turned on.
2. Make sure that one or more sheets of A4 or Letter-sized plain paper are loaded in
the cassette (lower).
3. Open the paper output tray.
(1) Holding both sides of the paper output tray, gently open it.
The output tray extension will open automatically when the paper output tray is opened.
(2) Extend the paper output support.
4. Clean the print head deeply.
(1) Press the MENU button.
(2) Select Setup , then press the OK button.
LCD and Operation Panel
The setup menu screen will appear.
(3) Select Maintenance , then press the OK button.
The Maintenance screen will appear.
(4) Select Deep cleaning , then press the OK button.
The confirmation screen will appear.
(5) Select Yes , then press the OK button.
The machine starts cleaning the print head deeply.
Do not perform any other operations until the machine completes the deep cleaning of the print
head. This takes about 2 minutes.
The pattern print confirmation screen will appear.
(6) Select Yes , then press the OK button.
The nozzle check pattern will be printed.
(7) When the completion message appears, press the OK button.
The screen will return to the Maintenance screen.