Star recommends utilizing genuine Star ribbons because they are manufactured to match the exact specifications of the printer. By using these ribbons, you will ensure that your printer works for the longest time. The fabric used is of the highest quality to ensure maximum print head life is achieved. The ink on the ribbons is specifically designed to lubricate the print head for ultimate performance, in addition to providing the maximum number of characters. The Star ribbon features a clutching mechanism to ensure that a ribbon jam or failure will not damage your printer.