When you attempt to print, do you get any errors reported? Just no printing takes place? One can examine the CUPS error log (/var/log/cups/error_log) for filter errors that may be occurring. Sometimes, it can be down to missing libraries needed to support the filters.
This can be used to put CUPS into debug mode for more verbose logging
Code:
sudo cupsctl --debug-logging
More info here...
https://wiki.ubuntu.com/DebuggingPrintingProblems
This will tell us printer status and configured printer URI
This will confirm which driver is configured
Code:
sudo egrep - i "name|model|filter" /etc/cups/ppd/*
Quote:
Should I try and download the correct driver directly from Epson website?
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There's no harm in trying that, but if/when printing doesn't work as expected you'll need to employ diagnostic steps (like those already mentioned) to find out out where CUPS is failing.