How do I move printhead from left side that is stuck there?

Error says cartridge Jam but it is stuck on left side. When I do as instructed it try’s to move but just makes a clunking sound and does not move along the rail. There could be a tiny piece of paper stuck under it but I can not make it move to the right to clear the path. I was hoping there is a release button some where that would let it move freely but I can’t find it. Any ideas?