dendyal wrote

I found it.  I had inadvertently selected the APPLY PRINT SCALE TO LINE WIDTH.  Since I've forced the scale to be fixed at 1:1, I don't understand why that was wrong but selecting that control proved to be the definitive error.   Now I'm thinking my PDF files and printer outputs were blank because the lines were too faint to see.  They're all fine now.  Just thought I'd mention this in case another newbie falls into this same issue.
Allison