Thanks to fixyourownprinter.com, I fixed the exit wrinkling problem that my Apple Laser Writer Pro 630 was having. (Of course spending $40 on a printer that only cost me $50 when UofM was getting rid of it may seem silly, but I didn't want to throw it away, and it's still a great workhorse for the rare occasions when I want to print something).
Of course the other reason to fix it would be so that when I purchase a color laser printer I can sell it to my brother ;-)