Using Evince Document Viewer 3.28.4 in Ubuntu 18.04, and viewing a postscript file generated by Medit, I was able to print to my postscript laser printer FS-1120D just fine.
Now I am using Atril 1.20.3 in Ubuntu Mate 19.04 and attempt to print to the same printer. The printer gives a sound like it is about to print, but nothing is printed. Turning the printer off and on doesn't help. Copying the file to my old laptop with Evince Document Viewer 3.28.4 allow me to print. Printing from my Mate 19.04 laptop is otherwise working, so I believe it can only be Atril 1.20.3 that is the culprit.