Hi Kate,
The first step is to open the scanner features. This can be done under the Miscellaneous settings (menu: File > Settings… > Miscellaneous). Set the Twain to “WIA” instead of the default setting “none”.
Now the grey scanning features will be enabled. Now you can select your scanner (menu: File > Scan > Select source…) and set you scanner. The next step is to a acquire your scan (menu: File > Scan > Acquire…) or to use the scan wizard (menu: File > Scan > Wizard…) to scan the document.
Have an easy day!
Wilbert at EasySIGN