how do you print a finder window

Finder has no print facility, so you cannot just print a Finder window. You can press shift+cmd+ 5 and take a screen capture of a Finder window, open that screen shot image in Preview, and then print it. When you are done, you can dismiss that screen shot panel in the lower-left of the screen by pressing the ESC key.

Do you mean print a finder window (the graphic image on screen) or do you mean print a list of the files & folders that appear in a finder window?