I suspect that one of my rollers is loose/broken - HP authorized service is 200 miles away.

[DAWDAW]

I have been trying to print cardstock and the rollers were not pushing the cards all the way out - getting stuck right before coming out of the machine. I saw that the roller bar was not in full contact with the other part on the right side.  Seemed odd. Investigated and it seemed loose but I am not sure if it is broken. Plain paper was working fine. But a few days later now plain paper is folding at the top left corner...maybe an new problem because the roller is not operating properly? I'm not sure it is even called a roller, but it is the metal bar I am pointing to in the picture.

[Valsimot]

That metal shaft with rollers is loose that's normal, it must freely move a few millimetres.