I'm not Ubuntu/Linux saavy at all.. can someone please give me specific well-articulated instructions on how to download and install the drivers for the abovementioned scanner/printer/fax unit?
This is not a printer, but scanner.
For scanner driver go to Epson drivers site
Search for your model, and download drivers.
You will need
esci-interpreter-gt-s80_0.2.1-1_amd64.deb iscan-plugin-esdip_1.0.0-5_amd64.deb iscan_2.30.1-1~usb0.1.ltdl7_amd64.deb iscan-data_1.36.0-1_all.deb
if your system is 64-bit.
Copy these files to your home folder and run in terminal
sudo apt-get install *.deb sudo apt-get install -f