Canon TS8300 Series Online Manual page 160

The operation panel is opened and the paper output tray is pulled out automatically.
The nozzle check pattern will be printed.
8. When the completion message appears, select OK.
9. Examine the nozzle check
If a particular color is not printed properly,
If the problem is not resolved, turn off the power and clean the print head deeply again after 24 hours.
If the problem is still not resolved, the print head may be damaged. Contact your nearest Canon service
center to request a repair.
pattern.
replace the ink tank
160
of that color.