Why ? Printing it on paper wont help ?
It sure does, unless you have 2 PCs going yoou have to switch back and forth between datrasheet and code. Also, there seems to be a better comprehension when reading from paper thatn form a terminal. I often use both, the terminal to find where to read stuff on the paper. Most of my printed datasheets have handwritten 'indexes' on the front page generated by search off the electronic version.

Erik