The Swintec SW 85 Calculator offers a dynamic ink delivery system, ideal for handling business or work on the go. Each Genuine Brother film ribbon Cartridge has a space saving design which easily installs, to reduce downtime normally spent on complicated replacement procedures. These OEM / Genuine Brother 1030 correctable typewriter film ribbons have the power and durability to tackle the most demanding print tasks. The Swintec sw85 calculator printer also contains a thermal ribbon, which minimizes smudging and blurring. We guarantee excellent print quality with our Genuine Brother Film Ribbons or we will refund your money within 90 days of purchase. And all of our Brother Ribbons for your Swintec Calculator have up to a 2 year shelf-life for definitive performance and convenience.