You can adjust the appearance of the scanned image or text by increasing the resolution or adjusting the image quality.
Change the resolution, and then scan again.
Set the appropriate resolution for the purpose of your scanned image.
Check that Text Enhancement is selected.
Document Capture Pro (Windows)/Document Capture (Mac OS X): On the Scan Settings screen, select Text Enhancement.
Epson Scan 2: On the Advanced Settings tab, select Text Enhancement.
When you select Black & White as the Image Type, depending on the condition of the scanned image, click Settings and adjust the slider for Emphasize light letters / Remove background, turn off Remove spot noise, or set the level to Low.
If you are scanning in JPEG format, try changing the compression level.
Document Capture Pro (Windows)/Document Capture (Mac OS X): Click Option on the Save Settings screen to change the JPEG quality.
Epson Scan 2: Click Image Format > Options, and then change the Image Quality.