The waste ink absorber is the part of the printer that catches any spilled ink or ink used during any maintenance. If the absorber is almost full, it will mean the printer is running out of space for ink. To clear the message the printer would need service. You can click the link HERE to log into your your Canon account and view any available service options.
Outside of the 1 year warranty, you can contact our sales department at 1-800-385-2155 to use our Upgrade Program. The Upgrade program will give you a discount and free shipping on a replacement printer.