When I print out ladder, I will sometimes get the header showing the date, processor type, and project name very, very small. Looks to be less than one point, maybe. If I go to the print setup dialog, the settings show normally, say 9 point Arial. Now if I act like I want to change them, and go into the font selection dialog, even if I Cancel without making any changes, it will work OK and the header will print in the selected font. Not sure if it only happens with ladder.
I generally print to PDF. Not sure if it would happen if I printed using a printer, but since it appears in the preview the way it will print, I assume it's driver independent.