I am very happy with my experience using Solus for the past 4 months. However, my printer (Epson L380) does not work on linux. I checked and found that Epson ships only .deb and .rpm packages for this printer. I tried epson-inkjet-printer-escpr package from the software center but sadly it doesn't support my printer. How do I get my Epson L380 printer working in Solus Plasma?

assuming solus printer settings do recognize printer, but can't print, then you are right, it's a driver.

here: https://dev.getsol.us/search/query/Xkq6dsCTHDHW/#R to see if it's been fixed

here to request the fine folks at dev make you a custom pack as you 'request a package': https://dev.getsol.us

you could also extract .deb package and see if there is a driver you can make solus print settings see. Long shot, probably.

what ideas does print settings have? sometimes a 'fake-out' install with a similar model's printer's drivers works. Lots of fakeout success stories here, but never worked me and Brothers or epson scanner.

you will get there.