Remind! Please double check your printer model before placing an order! What's in the set? 2 pack of black TN-780 TN780 Toner Cartridge. Compatible Printers: HL-6180DW Printer HL-6180DWT Printer MFC-8950DW Printer MFC-8950DWT Printer Reliable Print Quality: Each of our products has undergone hundreds of trial and error, delivering pleasing prints to every customer. If your printer does not recognize the Toner Cartridge, turn it off for 30 seconds, then turn it back on, and then reinstall it. Perfect for various workplaces, such as: school, hospital, home, office, etc., it can perform printing tasks well in different environments. Our Quality Assurance: Helps you reduce printing costs while delivering vibrant colors and crisp text. You can count on us! Advanced production techniques ensure clear and high-quality images. State-of-the-art printing technology delivers crisp text and graphics. Don't worry about my traffic safety. Let you buy with confidence and use comfortably! If you encounter any problems during use, please feel free to contact us. Send your question to our seller by logging into your Amazon account > click on your account > your order > find your order and click contact.