11-07-2019 06:15 PM - edited 11-07-2019 06:17 PM
11-07-2019 07:02 PM
99% that your fuser has failed. There is a defect in the hot roller where the film is split. Fuser repair or replacement. Any chance you still have warranty?
11-08-2019 07:47 AM
fuser part #'s
RM2-6418 duplex fuser
RM2-6431 simplex fuser
looks like a tear or a liquid smudge, or a piece of paper went through the machine that had some contaminate from manufacturing or coffee creamer (hazelnut).
You might want to try another 4 or 5 cleaning pages and see if it improves- if it is a label or some type of liquid smudge- you'd still have to take the printer apart to try and clean it off. It's a doable repair for someone mechanically inclined- there are videos online