A:Answer I don't use it but just figured it out. First, of course, extend the paper tray completely out until it clicks by pushing the blue tab on the right and pulling back, to accommodate the legal size paper. Then with the flat side up and the long straight side towards you, just lay the dust cover in place. It can be done with the paper tray pulled out or pushed in. The two round pegs on the bottom side of the dust cover fit into two holes in the front cover of the paper tray where you grab with your hand to pull it out. Took me a while to figure it out as well. In fact, I didn't even know what it was for. Once you get it the first time, it is quite easy. I agree, no instructions or diagram for this is unacceptable. Seems you are expected to figure everything out on your own or go online and download a manual, or look for answers on a forum like this. I included two picture of the cover in place and one just to show where the two round pegs go. Hope this helps.
