Chosen Solution
I was just tearing down this old HP printer because i got a new better one, and I came across something strange. It looks like a piece of metal with a slit cut into it for the wire. This wire wen’t to the display panel/buttons. And on a note, this object was slightly ferrous. It was weak though.
Hi @parzival , Just guessing, but since the cable seems to be passing through it it may be a type of ferrite choke designed to filter the EMI effects on the wires going to the display panel. (like what is found on better video cables connecting a monitor to a PC etc)