You wouldn't have returned your printer until you received a replacement. I would contact her, unfortunately, your cartridges may not work in the replacement...I know mine didn't.
My MX720 was replaced with an MX922. It is a $99 printer on Amazon. It looks much lower budget than my original and the first one sent was bad, with the resend I had to switch out the printer head, inks, and trays....from thebad one sent...these were...
Why put forth the time and money to buy on ebay to see if it works. If you want compensation for it, contact Canon and make a deal for financial compensation if it works. I don't think you realize how much of a frustration this error has been to so m...