Rest the machine on it's rear panel, so you can access the cable.

Lift up the brown clamp, and pull out the cable

Using a T-10 Torx screwdriver, undo the two screws beneath the display (pictured)

The display remains attached to the scanner assembly for now. If you need to detach it from the scanner - for instance, to operate the printer while it is open - you can detach it once the scanner assembly is removed.