some of the weights on the copiers dont factor in the cart and options such as adf & sorters. have torn down some copiers this week & got a lot of nice boards. lots of mem sticks in a couple of them.only down side to copiers is if you dont know where the boards are you will be taking a bunch of screws out for nothing. always lots of wire and some units have 7=10 fans and 10 or more electric motors.