Overview
Find the image that resembles the print quality problem you are having, and then click the link below it to read problem-solving steps.
If the printer is a multi-function device with a scanner (MX31x, MX41x, or MX51x device), confirm that the print quality issue is not a scanner problem by printing from a computer, or by printing a menu demo page directly from the printer: Menu > Reports > Print Demo.
If the print quality issue only appears on scanned documents or copies, go to Cleaning tips for clearing lines, smudges or spots on scanner glass for diagnostic information.