Brother MFC-8820DN - Manual (Page 208)

13 - 12 HOW TO SCAN USING WINDOWS ®
6
To start scanning your document, click the Scan button in the
Scan dialog box.
■
The scanner resolution you can select is up to 1200
× 1200
dpi.
■
For resolutions greater than 1200 dpi, use the Brother
Scanner Utility. (See Brother Scanner Utility on page 13-15.)