The EPSON WorkForce 320TX320ME620 appears to be a model of printer or all-in-one (AIO) device from Epson's WorkForce series, though it may not be widely known or recognized by that exact model number. The term "Windows driver" refers to the software that allows your Windows computer to communicate with and control the Epson printer or scanner hardware. The driver ensures that your operating system can send print jobs to the printer and manage other functions such as scanning or faxing (if it's an AIO model).