Look at
this for part number information.
Problems with fusers
1) Ofsetting, build up of toner on rollers causing image repeat on paper.
2) Toner not fusing to paper due to damaged rollers.
3) Jamming do to damaged rollers.
4) Error codes due high or low temp of rollers.
Your options are
1) Pay HP to replace the fuser.
2) Pay a third party to replace the fuser.(Cheaper option than A)
3) Do it yourself, if you are reasonably competant you could probably change them yourself, once you work out which screws to remove it is quite a simple job on your printer.
You may need to replace both the upper assy and lower roller to fix the problem you are having. sounds like the lower claws have dug into the lower pressure roller.