Re: HP all in one/ printer jamed?
Could be the gears are worn or broken inside. If it's in warranty still then send it in. If not, then you'll have to open it up and check yourself :/ that can be quite tricky unfortunately, printers generally are put together in an extremely un-user-friendly way.
If it has a drum or toner unit make sure you take them out and check for bits of paper too. What model do you have?
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