You can scan different sizes or types of originals one by one using Automatic Feeding Mode. In this mode, the scanner starts scanning automatically when originals are loaded in the ADF.
When using Document Capture Pro, you can use Automatic Feeding Mode in your job.
Start Epson Scan 2.
When you are using Document Capture Pro, you can open the Epson Scan 2 window by pressing the Detailed Settings button on the Scan Settings screen.
Select Automatic Feeding Mode on the Main Settings tab.
Make other settings for scanning on the Epson Scan 2 main window.
Click Scan.
When using Document Capture Pro, click Save to save the scan settings. When you start scanning, Automatic Feeding Mode will starts.
Automatic Feeding Mode starts.
The 
light on the scanner turns on, and the Automatic Feeding Mode window is displayed on your computer.
Adjust the edge guides, and then place the original in the ADF.
Scanning starts automatically.
After scanning stops, place the next original in the ADF.
Repeat this procedure until you have scanned all originals.
If you want to scan originals that are detected as double feeds, for example plastic cards or envelopes, press the 
(Double Feed Detection Skip) button before placing the original to skip double feed detection.
If you want to scan originals that are likely to jam, for example thin paper, press the 
(Slow Mode) button before placing the original to slow down the scanning speed.
After you have scanned all originals, close Automatic Feeding Mode.
Press the 
button on the scanner or press Finish on the Automatic Feeding Mode window displayed on your computer.
You can make timeout settings to finish Automatic Feeding Mode.
Select Settings on the Document Source list to open the Document Source Settings window. Set Automatic Feeding Mode Timeout (seconds) on the window.
The scanned image is saved to the folder you specified.