Canon PIXMA MG6821 User Manual - Page 197

From the computer Cleaning the Print Heads (Windows) Cleaning the Print Heads (Mac OS) After cleaning the print head, print and examine the nozzle check pattern: Step1 If the problem is not resolved after performing from step 1 to step 3 twice: Step4 Clean the print head deeply. From the machine Cleaning the Print Head Deeply From the computer Cleaning the Print Heads (Windows) Cleaning the Print Heads (Mac OS) Note • When you have performed the procedure until step 4 and the problem has not been 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 the service center. When the Print Results Are Not Even such as the Ruled Lines Are Misaligned: Step Align the print head. From the machine Aligning the Print Head From the computer Aligning the Print Head Position (Windows) Aligning the Print Head Position (Mac OS) 197