Canon PIXMA MG7520 User Manual - Page 870

Colors Are Uneven or Streaked Colors Are Uneven Colors Are Streaked Check1 Did you confirm the paper and print quality settings? Print Results Not Satisfactory Check2 Print the Nozzle Check Pattern and perform any necessary maintenance operations such as Print Head Cleaning. Print the Nozzle Check Pattern to determine whether the ink ejects properly from the print head nozzles. Refer to When Printing Becomes Faint or Colors Are Incorrect for the Nozzle Check Pattern printing, Print Head Cleaning, and Print Head Deep Cleaning. • If the Nozzle Check Pattern is not printed correctly: Check to see if a particular color's ink tank is not empty. If the Nozzle Check Pattern is not printed correctly though ink is sufficient, perform the Print Head Cleaning and try printing the Nozzle Check Pattern again. • If the problem is not resolved after performing the Print Head Cleaning twice: Perform the Print Head Deep Cleaning. If the problem is not resolved after performing the Print Head Deep Cleaning, turn off the machine and perform another Print Head Deep Cleaning after 24 hours. • If the problem is not resolved after performing the Print Head Deep Cleaning twice: 870