I didn't really understand from the video what I'm supposed to do. Can Jeff or someone else describe the steps to me? thanks!
When I first install any print drivers, I always use the USB cable as the first connection method even if I will end up using ethernet or wifi later. The reason is that in general, print drivers are usually the most "simple" via usb and when you add additional complicating factors to the connection if can get confusing...
So, I hardwire the connection, download the most recent driver (not the CD that came with the printer), install the print driver (I'm on mac so I can't give the steps on windows), make sure I've selected the the proper driver version (never AirPrint for a pro printer) then do my printer alignment and run some actual prints to make sure every thing is working. Thereafter, I'll pick the connection method I want–usually ethernet–I only use wifi for my biz printer not photo printers and make sure everything on the new connection is working exactly like the original usb connection.
I con't remember when Epson started doing their AirPrint driver, but it screws up a lot of people. It's fine if you want to print from your iPhone or whatever (and we did the demo of printing from my phone) but I don't suggest that for normal real printing :~)