Flutterby™! : Reusing Paper

As most of you know by now, I'm a PhD student at a big university - one that's particularly known for ecological conservation and research in global warming. I have a pet-peeve: People who feed used paper through computer printers. Anyone know of a good source comparing the environmental costs of reusing paper and using fresh, recycled paper? I'm betting it's a paper cup vs. styrofoam cup thing - styrofoam cups require so much less energy to produce than a paper cup that they are the better environmental choice.

My gripe is that reused paper tends to misalign and more frequently jam in the printer. Having to resend the job is not just a waste of my time, but it also means I've unnecessarily wasted the paper and the energy the printer required to get jammed. Having worked with many printers, I bet the energy needed to charge the corona in the average laser-printer greatly impacts the total environmental costs of printing beyond just that of the paper!