Epson RX425 Printer Scanner Copier

I have a blockage causing the paper to jam on the far left hand corner ( as viewed from the front )whilst trying to feed through. I suspect it is a bit of paper or something small like a staple, but it is out of sight which means I need to take the printer apart to find and remove it, but I cannot see how this is done. So far, I have : 1) Removed the Scanner lid, 2) Removed the back paper support, 3) Removed the screws at the bottom of the three holes ( bottom left, bottom right, top right ) on the the main scanner part of the machine, and which appear to hold it to the body of the printer, 4) Disconnected the right hinge of the scanner part. However, I cannot see how to release the left hinge. It looks like there is a similar screw to the right hand hinge, but I can see no way to get to it other than forcing a screw driver through the tiny gap in the plastic. I assume this scanner part really does have to come off, as I can see no other way of removing the plastic main upper body, which I think must have to come off to give access to the printer mechanism. However this seems to be held in place by a couple of tiny plastic pegs only a millimetre or two in diameter. Are these sealed in place or is it just matter of brute force? Next question is the control panel on the left hand side. Does this need to come off? I have found the plastic clips on the left and released them, but there is clearly something else holding the panel in place. Has anyone else had this problem? How do I get the scanner lid off, and how do I remove the plastic upper body of the printer? Any help would be very much appreciated.