It can be replaced. Knob Cutter bar Latch (opens top cover) Feed Deck. The LX-570 is designed for use with items up to five inches wide. It works best with item thicknesses between 20 pound bond paper and 100 pound card stock or construction paper (min. thickness is 0.004 inches, max. thickness is 0.010 inches). The LX-570 applies an adhesive, laminate, or magnetic backing to an item without using heat or electricity. You choose a backing by swapping the drop-in cartridge. The LX-570 comes with