Such a simple issue, and yet it made me scratch my head for a full minute…
The user was trying to print a doc consisting of a list of headlines. They had the Paragraph markers displayed and while everything looked good onscreen, when you printed or ran Print Preview, the doc looked like a single blank page and nothing was there to print.
It turns out all those lines of text were formatted as HIDDEN TEXT. Somehow they managed to turn it on before they started or formatted the text that way and so Word thought that it was supposed to skip printing well basically everything in the document. The solution was to highlight all and format the text removing the Hidden Text attribute. For good measure (because I know the user doesn’t use hidden text in general) I also turned on the option to Print hidden text under Word Options. That way if this issue happens again it won’t disrupt them.