This is a pre-collated sheetfed bookletmaker with two input bins: cover and inside sheets. All settings are digitally controlled with manual micro adjustments. There is a digital slitter/scorer to handle full-bleed booklets. The twin-wire stitcher allows the books to have properly sized staples depending on the thickness. The front edge trimmer completes a finished booket. The trimmer has less than 1 million cycles and I believe the other components have even less but I cannot find the counters. I purchased this refurbished machine 3 years ago for $18,000 and have not used it since we received our KM6100 with a square-fold bookletmaker.