Epson printer TM U220 (User Intervention Required)
I spent a good week trying to find an answer to this problem... and finally I HAVE THE SOLUTION!!
it's to do with the Port settings.
go to BIOS and change the port settings on your computer.
there are a number of different options that can be selected, just try them one by one, the one that worked for me was "Normal" try that one first, but it may be differnet depending on the printer.
if your LPT port is using it's own driver (not using BIOS to run) you cant change the settings using the BIOS. see if you can change it useing the settings for the dirver. if not try updating the driver. if that doesn't work, and nothing else works, reinstall Windows, that should fix the problem as a last resort.
on Aug 02, 2018