Place the document in the scanner section of your Epson printer by watching the alignments. Close the lid of the scanner, and give a power supply to your printer. Ensure that your computer is connected to the Espon printer via USB or a wireless connection. Now, press the home button, choose your computer, choose the scanning format, choose the location to save the scanned document, and hit the 'Scan' button; this is how to scan from Epson printer to computer.