Randy,
It has been a while since I did it, but as I remember, It just all kind of snaps together. I used a little bit of force after removing the two screws that hold the whole assembly to the printer... kind of twist to one side and pull out. I wasn't sure what I was doing at the time, but didn't really care if I wrecked it. As it turned out, it was rather easy to get back together.
Steve