LD Compatible Printer Ribbon Cartridge Replacement for Okidata 44173403 (Black, 5-Pack) Page Yield: 8 million characters per cartridge | Shelf Life: 24-36 months per cartridge We offer lightning fast shipping on all printing supply and inkjet photo paper orders The use of LD replacement ink and toner cartridges does not void your printers warranty All LD branded products are backed by a 100% satisfaction and LIFETIME guarantee For use in the following Okidata Microline Printers: 620, 690, and 5720