Bad cq so I run a partial sky shot and 2/3 of the page is black and 1/3 of page has white and black linesfrom one end to the other side to side of the 8 1/2 inch direction possibly the saw tooth?
Check the LSU glass, it could be dirty; also run a self print to eliminate optics. The rear side of mag roller gets toner caked on it, which could cause problems you described.
__________________________ "You can't trust your eyes, if your mind is out of focus"