I picked up a GR3770 over the weekend and I've been getting a "Paper Jam Check Feed Area" error when I run it.

Usually it runs one sheet and gives me the error as the sheet is slowly spit out the other side with no or very little ink on it.

When I open the drum area there's no paper and checking the feed tray doesn't clear the error.

Heres a couple videos of the rear panel
https://www.youtube.com/embed/Idw-N94kSxY

For some reason it actually fed a couple sheet, they had a bit more ink, but still barely any:
https://www.youtube.com/embed/567rqgfjRjo

Here's a video of the feed tray
https://www.youtube.com/embed/a5CXsAvup0M

Here's a video of the receiving area
https://www.youtube.com/embed/tSwy_GrY2W0


Any help would be greatly appreciated