When launching xprint4 from the command line with a file as argument, when selecting a file in the graphical dialog, or when clicking "Print file" for a text file in the context menu in thunar, I get a segmentation fault and nothing comes out. This is both in 5.8 and 5.9 standard (with the same printer, and Epson Stylus Color 740).
Printer system setting are set to CUPS in Xfce.
This is both as user and root.
But I can print from inside mousepad or other text editor.