Hi Terry,
Thanks so much. Unfortunately, the files you found are not actual drivers. They are the same file and the file is a communication driver. Its' purpose is to communicate with the printer to install firmware updates. The installer (a person) for the printer used it when we setup the printer. If you don't have your dealer physically install/setup the printer it voids the warranty.
According to Epson's US web site FAQs for this printer,
"Q: Does the printer come with an Epson printer driver?
A: No, there is no standard Epson printer driver for the printer. Wasatch RIP software is used to print.
Note: There is a Communication Driver (available for download) which is used to update the firmware."
Also, the service manual says, "EPSON driver is not provided for Windows nor for Mac. Supports RIP made by 3rd parties"
Thanks very much for your effort!
Jim