Epson ET-4550 update
Where do I find this update for Epson printer? currently using Catalina 10.15.6
Would have thought you might have tried the Epson support pages first,
Click on this link,
https://www.epson.co.uk/support?productID=16265&os=36#drivers_and_manuals
Make sure the operating selector is set to macOs 10.15 (Catalina)
click on Drivers and Software, click on the + buttons to reveal
the updates available for you.