Canon S450 User Manual page 283

Print a nozzle check pattern
Execute normal print head cleaning
Execute deep print head cleaning
Replace the BJ cartridge
Execute print head alignment
Printing a Nozzle Check Pattern
Cleaning the Print Heads
Replacing a BJ Cartridge
Aligning the Print Heads
Nozzle check pattern poor quality?
Nozzle check pattern poor quality?
Nozzle check pattern poor quality?
When to Replace a BJ Cartridge
Routine Maintenance 283