Just some notes to myself on how to take this thing apart when the internals need cleaning.
Pic1 shows the location of the 4 screws that will remove the cover from one side. My model required two Torx sockets - a T10 and a T15 (these cannot be used interchangeably like a Philips).
Pic2 shows a couple more Torx screws that will remove the imaging module. There are two small screws on the other side too