Cannot Scan the Correct Area

Make sure the original is placed correctly against the arrow marks in the corners.
Move the originals about 0.1 in (2.5 mm) away from the horizontal and vertical edges of the scanner glass to avoid cropping.
Do not use the scanner stand, and place the base of the scanner directly on a flat, stable surface.
Depending on the original, automatic cropping according to the size may not work correctly. Set the original size manually using Document Mode in Epson ScanSmart. Select Settings > Scan Settings > Document Mode. Click Custom Settings, and then select the size of the original in Main Settings > Document Size.