When you buy your HP 27X HP C4127X Black Toner from Tonerworld, you can rest assured you are receiving genuine, quality product. Our customer service team is always available to help you should you have any questions regarding your HP C4127X Black Toner. Tonerworld ships all orders the day they are placed so you can be sure you will receive your HP C4127X Black Toner promtly. Our hassle free return policy insures that should you have any problems with your HP C4127X Black Toner we will either replace it for you or issue a full refund.