Hi komuro1,
The driver and software for your PIXMA MX922 are available for download from Canon's web site. To access the downloads, please follow these steps:
1. Visit Canon's website at: http://usa.canon.com/support
2. Type PIXMA MX922 in the "Enter a Model Name" box and click the Get Drivers & Downloads button.
The downloads for your PIXMA MX922 can be found under the "Recommended Downloads", "Drivers" and "Software" tabs.