Canon MultiPASS F50 Reference Guide for the MultiPASS F30 and MultiPASS F50 - Page 37

Testing and Cleaning the Printhead The printhead contains nozzles through which ink is propelled onto the paper. To maintain the best possible print quality, these nozzles need to be cleaned from time to time. Your machine is equipped with a printhead cleaning function that does this. I Flow Chart of Printhead Maintenance 1 Print the nozzle check pattern (→ p. 5-8), and check the following; • If the nozzle check pattern is printed clearly. • If the printhead position is aligned. The pattern is broken, missing, or a specific color is not printed. The printhead is misaligned. 2 Perform normal printhead cleaning (HEAD CLEANING setting). (→ p. 5-8) You can perform normal printhead cleaning up to three times. 2 Align the printhead. (→ Quick Start Guide) The pattern is not improved. 5 Maintenance 3 Perform deep printhead cleaning. (HEAD REFRESHING setting) (→ p. 5-8) • If the pattern does not improve even after performing HEAD REFRESHING, turn off the power and NOTE perform HEAD REFRESHING again after 24 hours. If the pattern still does not improve, the Printhead (Cartridge) may be damaged. Contact the Canon Customer Care Center to have the Printhead (Cartridge) replaced. 5-7