Printing Maintenance
Printing Maintenance
When Printing Becomes Faint or Colors are Incorrect
When printing becomes faint or colors are incorrect, even if ink remains in the ink tanks, the print head nozzles are probably clogged. Follow the procedures below to clean the nozzles.
Step 1
“Printing the Nozzle Check Pattern” on page 56
If the pattern is printed normally, 
select All A.
After print head cleaning, print the nozzle check pattern.
If the print quality is poor, perform print head cleaning.
Step 2
“Print Head Cleaning” on page 57
If the problem remains after performing print head cleaning three times
Step 3
“Print Head Deep Cleaning” on page 58
Still the problem remains
Step 4
“Replacing an Ink Tank” on page 60
note
•If the print quality is poor, adjust the print head position. It may solve the problem.
See “Aligning the Print Head” on page 59.
•If ink tank replacement does not resolve the problem, the print head may be worn out. Contact a Canon service representative.
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