|I can't direct you more precisely because you didn't post the model of you scanner. Go to the link below to get the drivers, if any are available.|
If there are no drivers for Windows 7 listed you might get be using Vista drivers.
Windows 7 may also install the scanner using generic drivers but the software bundle that came with the scanner may not work anymore.
Another possibility is to install the scanner in a Windows compatibility mode in Window 7.