LD Compatible Toner Cartridge Replacement for Okidata 43502001 Type 9 High Yield (Black, 3-Pack) Page Yield Per Cartridge: 7,000 | Shelf Life: 24-36 Months Our compatible replacement for the Okidata 43502001 laser toner cartridge does not void your printers warranty. All LD branded products are backed by a 100% satisfaction and LIFETIME guarantee Expect exceptional yields and crisp, clear printouts from this economical alternative to expensive Okidata 43502001 toner. For use in the following printers: B4550, B4550n, B4600, B4600n PS