Epson Expression Downloads; FAQs; Manuals and Warranty; Registration Scanner Driver. Windows 7 In-box. Description: Although Epson does not. Provides detailed instructions for installing and using EPSON Scan. Server and EPSON TWAIN Pro Network software. Online EPSON Scanner Software. With their newest scanner, the Epson Expression , two of the model software bundle offered with the Artist, Pro, and Pro FireWire models. Besides the Epson Twain Pro driver, the software bundle includes TWAIN Pro.