You need to be registered on the Nikon Europe website for a printable version, just like for newer manuals at Nikon USA website.
You also can't highlight and copy text in the manual.
I would think that soon the Nikon USA site will have the manual, and if you're registered there, you'll be able to get the D4 manual in which you copy text, and print.
Personally, I've never printed any of the downloaded manuals. I find they're more useful as searchable electronic pdf versions. I do put the manuals for my equipment in my cell phone for reference, and in my laptop too, which I travel with everywhere. That is very useful.