Brother MFC-J2340DW Online User's Manual page 141

8. Adjust the settings in the Scanner Setup dialog box, if needed.
9. Click the Document Size drop-down list, and then select your document size.
10. Click PreScan to preview your image and crop unwanted portions before scanning.
11. Click Start.
The machine starts scanning.
Related Information
• Scan from Your Computer (Windows)
• TWAIN Driver Settings (Windows)
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