Re: Hp4635 printer. A part from bottom of printer fell out. Can’t see where it goes

If it's the paper guide it can be fixed back on its place, however, to understand exactly which part you are referring to, 

I'll need to see it, which brings me to the only question I have for you, could you share a picture of the part with the issue? 1 or 2 pics should do.

P.S: Welcome to HP Community 😉

Keep us posted,

And the answer to the above question will help me, help you!

Keep me posted, and if any of the above questionnaires helped resolve the issue, 

Mark this post as an "Accepted Solution".

Good luck.