Carriage hits the right inside of printer - will...

Question

HP Deskjet 6540
My printer had a paper jam this morning so I removed the lid on the back, took out the paper and put the lid back on.
Then the red arrow was flashing so I though the black ink was out since it wouldnt print and I knew the cartridge was low. I changed the ink with a new one.
Now the top light is flashing along with the red arrow and when I press the red arrow, it tries to engage but the carriage hits against the right hand side of the printer doesn nothing more.