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