Hi Rick I spent the day going thru' every print combination I could think of on Windows 10 and Windows XP. All of them came out as ~5 lines per inch, ~12pt courier, correctly sized and spaced, which is slightly bigger than the old typewriter standard. The only way I could get anything close to not that, is by messing with the printer properties, and not setting Page Setup -->Page Layout --> Normal Size.
I think you or me may have miss read something, I wasn't aware that JMRI 4.6 ran under java 7u80. It didnt work for me.
Steve G.