I have an Epson WorkForce 615 all-in-one (scanner-printer) and was just getting around to setting up the scan part, and it just didn't work. It didn't even let you into the scanner program to configure it. There is a troubleshooting document that is completely useless because everything it says to do you have to be in the program already to do it.
Internet to the rescue: this two-year-old post detailed my exact problem and the exact solution (a separate config app that was silently installed and never mentioned in Epson's documentation. Thanks, Epson.)
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