Canon has Windows 7 drivers on their website:
Cannon iR3225 manuals:
To see if you have Windows 7 32 or 64 bit:
- Open System by clicking the Start button, right-clicking Computer, and then clicking Properties.
- Under System, you can view the system type, it will say 32 or 64 bit.
Try the Printer Troubleshooter
- Open the Printer troubleshooter by clicking the Start button
- Then click on Control Panel
- In the search box, type troubleshooter
- Then click Troubleshooting
- Under Hardware and Sound, click "Use a printer"