This Remanufactured 45807103 Toner cartridge has been manufactured to high standards with quality toner to work in this range of OKI printers. OKI B2540/2520 These consumables offer an economical alternative to the genuine product and come with a complete 100% satisfaction guarantee.OKI B412dn/B432dn/B512dn/MB472dnw/MB492dn/MB562dnw