scanimage does not find scanner unless sudo’ed, but shows up with sane-find-scanner (Raspbian)

I have an Epson multifunction device connected to a Raspberry Pi running the latest Raspbian. As you can see in the output below, scanimage will only find my scanner if I sudo it, but sane-find scanner finds it just fine without sudo. I’ve checked that the device permissions are properly set… saned is a memeber of the lp group, which is the group of the USB device. What gives?