Please make sure that all of the ink tanks installed in your PIXMA MX922 contain ink.
Next, please perform 2 or 3 cleanings following the steps on this page from the manual:
If your PIXMA MX922 still does not print correctly after performing 2 or 3 cleanings, your PIXMA MX922 would require service.
You are eligible for Canon's Upgrade Program. This is for out of warranty units which have been diagnosed to require service, or for some reason are incompatible with a new or upgraded system. This option allows you a one-time opportunity to purchase a replacement product, discounted from the list price.
If you would like to take part in this option, please call our Sales Department at (866) 443-8002 Monday through Saturday, 9am to 9pm. Let them know you have been working with technical support and the Canon Upgrade Program was offered.