Printing - font rendering

When exporting as a PDF everything renders very beautifully, it looks craftful. However when printing the rendering looks not quite as it is supposed to be. I could see it already in Print Preview. It becomes very obvious after a lowcase-“w”, but everything else seems to be a bit odd too.
Attached Scapple-File, Exported-PDF and a PDF printed through “PDF-Creator” (I got the same results when really printing with a Kyocera printer). I tried a couple of different settings for the printed PDF, it didn’t change.
w_pdf creator.pdf (80.4 KB)
w_export.pdf (9.08 KB)
w.scap (5.39 KB)

I can confirm with me the same effect occurs.
ASUS Notebook Win7 Prof

Greetings from Cologne