Images on the back of the original may appear in the scanned image.
When Auto, Color, or Grayscale is selected as the Image Type.
Check that Remove Background is selected.
Click 
Settings in Epson ScanSmart, Review Scans or on the Select Action window, and then click the Scanner Settings tab > Scan Settings button > Advanced Settings tab on the Epson Scan 2 window > Remove Background.
Check that Text Enhancement is selected.
Click Settings in Epson ScanSmart, Review Scans or on the Select Action window > Scanner Settings tab > Scan Settings button > Advanced Settings tab in Epson Scan 2 window > Text Enhancement.
When Black & White is selected as the Image Type.
Check that Text Enhancement is selected.
Click Settings in Epson ScanSmart, Review Scans or on the Select Action window, and then click the Scanner Settings tab > Scan Settings button > Advanced Settings tab on the Epson Scan 2 window > Text Enhancement.
Depending on the condition of your scanned image, click Settings and try setting a lower level for Edge Enhancement or a higher level for Noise Reduction Level.