Avision AV810C+ - Manual (Page 28)

4-3
PC Users
1.
Open your application and choose Select Source from the File
menu. If the Select Source command is not available from the
File menu, see the user guide of your application to learn how
the TWAIN link is used.
2.
A dialog box appears containing the different TWAIN sources
for you to choose from to bring an image into your application.