1.The paper gets to the toner cartridge and after that jams.
-In the event that you have a newer model printer check to ensure that the toner exchange bar isn't stuck in an upright position.
-Check for dust. If there is debris in the paper path this can cause jamming. It can be a torn piece of paper, a stable or just a build up of paper dust. DO NOT touch the roller. It will hold the oil from your skin and cause print defects.
-Replace the toner cartridge.
2. The paper enters the fuser and gets jammed inside.
-In this scenario fuser will probably have to be replaced, also check for any piece of paper. Clean the paper path with a lint free cloth
If you still face problem you can call
Hp printer helpline number 1-877-540-9627