This is a picture of my interface screen, on the PT-R8600 (Fuji T-9000). The arrow at the right of the schematic shows a plate actively unloading through the back slot, to the conveyor for developing and stacking.
I am currently (in the picture) running full automation, from the cassette to stacker. Preload is off but it still semi-preloads, as long as my tiff catcher is actively sending. Full P-Load gains me about 6 plates per hour (to 24 from 18), 8-up size plates. I turn P-Load off when switching cassette sizes to save hassle.
This is a still shot but at 6% burn, the big wheel at bottom-right is animated and turning. The arrow at back blinks while the plate is unloading and the top arrow indicates loading a new plate.