TN421BK Original Black Toner with a 3,000-page life is designed to deliver long-lasting, high-quality results in conjunction with our printing equipment.

The 4 color toners and the drum are independent to save you by replacing only the consumable that has expired.

In addition, you enjoy more efficient toner management with the toner saving function and the bk mode, which allows you to continue working in black if any of the color toners run out, until the black toner runs out.