2 years ago
  Epson (Printer/Scanner/Multifunction)
  Mint 19.x
  Works fine with some minor problems
What works:

Detected and installed fine during setup.
Printing works fine.
Scanning works fine without firewall enabled.

What doesn't work:

Scanning doesn't work with Firewall enabled. Simple Scan cannot find scanner. Printing still works.

What was done to make it work:

Allowed incoming connection on port 3289/udp on the firewall for the relevant IP address of the printer. Simple Scan can then find scanner okay.

Additional notes:

ET-3600 is connected with WiFi.