I feel I must explain. This study will not be technical, merely pictorial. Those images that appeal to me and hopefully, in turn, to you!
Now yesterdays image was necessary I felt, so that you knew what the forthcoming (this) machinery was for. The image is transferred onto the plate (it is light sensitive) via a specialist system before this image would occur. Once this process is complete the plate is then moved along a (pictured) conveyor belt and is then lifted from one conveyor to another.
This mechanism guides the plates along the automated conveyor system by using those suckers to pick it up from one conveyor belt level to another. Er, yes, that's all it does. The plates have to be placed on the actual printer rollers by hand.