This is a compatible Okidata 43502001 (Type 9) high yield black laser toner cartridge guaranteed to perform with your Okidata B4600 laser printer. It replaces the original Okidata 43502001 laser toner cartridge. The compatible replacement 43502001 laser toner cartridges and supplies (also known as generic) are specially engineered to meet the highest standards of quality, reliability and exceptional yields that meet or exceed OEM (Original Equipment Manufacturer) standards for the 43502001 Okidata laser cartridge and offer high-quality printing results. Manufactured brand new, containing 100% new components, they are an economical alternative to expensive OEM 43502001 Okidata laser toner cartridges and supplies, and offer big savings over brand-name 43502001 laser toner cartridges and supplies. The use of compatible replacement laser toner cartridges and supplies does not void your printers warranty. We offer a Two Year 100% Quality Satisfaction Guarantee on our compatible 43502001 laser toner cartridges and supplies. For use in the following printers: OKI B Series B4600, OKI B Series B4550, OKI B Series B4600n PS, OKI B Series B4600n, OKI B Series B4550n. We are the exclusive reseller of LD Products brand of high quality printing supplies on Newegg.