We all wish we had hard copy for reference and you inspired me to keep a binder for my various server projects. Unfortunatly I don't have a network of *nix machines with printers. Here is how I managed to get printed documentation.
I copied the files I wanted to print (for example named.conf) to the document root of my apache server, then I accessed the server from a browser appending the filename to the address like so http://192.168.1.100/named.conf The result is a printable text file accessible from a browser. Of course you could also copy and paste the text into a word processor if the formatting needed to be adjusted.