With the SR-100 In-Line Slitter-Rewinder you can slit and rewind your labels directly as you rewind them from your printer, without placing any stress whatsoever on the printer. A free-hanging “loop” of label stock is created between the printer and the SR-100 thereby eliminating all tension on the printer. An optical sensor starts and stops the rewind/slit action only when the printer is printing. Fully-adjustable tension exists between the tensioning roller of the Slitter and the take-up shaft of the Rewinder, thus yielding consistent and tightly wound finish rolls. Add up to three (3) additional blades!