Canon PIXMA iP4820 On-Screen Manual - Page 407

Colors Are Uneven or Streaked Advanced Guide > Troubleshooting > Print Results Not Satisfactory > Colors Are Uneven or Streaked U320 Colors Are Uneven or Streaked Colors Are Uneven Page 407 of 468 pages Colors Are Streaked Check 1: Did you confirm the paper and print quality settings? Print Results Not Satisfactory Check 2: 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 Routine Maintenance 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 printer and perform another Print Head Deep Cleaning after 24 hours. If the problem is not resolved after performing the Print Head Deep Cleaning twice: