I recently replaced my toner (was still using the original toner that came with the printer) and everything was fine for a few prints. Suddenly, the prints are coming out badly smudged and streaked. I have been working on fixing this for nearly two months and have tried every onboard fix that I can find including all of the maintenance options (cleaning the Fixing Unit and the Transfer Belt at least a dozen times each.)
I have not tried replacing the brand new toner with a brand newer toner. The idea of spending another $100 just to see if that is the issue is not very palatable and is my last resort. (I'd probably trash the unit and get something new at that point.)
Any ideas that I may not have seen yet?