4.Click the Preview button. You see a preview of your scan in the window that opens.
If you are scanning multiple pages using the ADF, you do not need to Preview the document unless you want to scan only a portion of a document.
5.Choose your scan settings.
Preview button
Marquee button Auto Locate button
Auto Exposure button
Click the 
Auto Locate button to
automatically define the scan area around the edges of your image. You can also adjust the scan area by positioning the mouse pointer over the dotted line around the marquee’s edge and dragging the box to resize the marquee.
Click the 
Auto Exposure button to automatically set the highlight and shadow exposure.
Generally it’s a good idea to use the Auto Exposure button to obtain the best settings for your scan. See your electronic EPSON
If you need to remove color cast from your image, use the Gray Balance Intensity feature.
6.When you’ve finished making adjustments, click the Scan button.
The READY light on the front of the scanner flickers while it’s scanning. In a few moments, a scanned image is imported into your host application’s window.
(If the READY light continues to blink, it may indicate an error condition. See Chapter 6, “Solving Problems,” for more information.)
7.Click Close to close the EPSON TWAIN HS or EPSON TWAIN HS Network window and return to your application.
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