Hi there,
Well - "printing from Linux" . . . in my experience that has always been a troublesome issue, so much so that I resorted to creating PDF documents and then printing these from Windows. And, that was for just about everything, not just PixInsight images.
What seems to be 'missing' is the Printer Driver (so easily found and installed in a Windows environment). Perhaps there are Linux gurus here who know how to resolve the issues, but I have more or less totally given up on Linux altogether.
That said, as far as printers are concerned, I have always had tremendous results from all of the Epson Stylus Photo printers that I have purchased (I have just bought the XP-830 and it was around the £100 / $100 / €100 price level, and the results have been stunning).
I have just searched the Epson website, and they (like many other manufacturers) do not provide any support for Linux.