The use of black ink is more frequent than that of color cartridges, which means it may need to be replaced more often. Ensure you don't run out of ink by purchasing the TN230BK Toner Cartridge. Although there are more economical alternatives, only the genuine TN230BK Toner Cartridge ensures that your device will continue to operate quickly and efficiently. Using Brother cartridges is the only guarantee that your printer will remain in excellent condition and that your warranty will remain valid. Order the TN230BK Toner Cartridge in black from Brother to ensure the best value for your money over time.