Ha! After getting impatient and frustrated i began poking about the inside the printer and found a belt that wasn't on a cog!
When you lift the scanner lid, in the back-left corner of the machine there is a white gear that is attached to a main horizontal roller. The belt was sitting NEXT to that gear, rather than on it. I was able to push the belt back on with my finger without removing any panels.
Once i did this, i held the red "x" on the panel again and the print head moved to the middle as it should. Everything appears to be working now.