It's fusing unit but the thermistors connection can be good, but check do they are touching the surface of the hot roller and check do on the side where they are in touch with the surface of the hot roller has some attached toner on them.
on my 2025 I am getting a lot of extra toner on the page just after the developer what most likely...
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on my 2025 I am getting a lot of extra toner on the page just after the developer what most likely cause? it was on it's side during a local relocation and has been cleaned up but can see where the page has a lot of extra toner coming out of the developer station.