Package Contents: 1 Pack TN-115BK Black Toner Cartridge. Compatible Printer Models: HL-4040CN Printer HL-4040CDN Printer HL-4050CDN Printer HL-4070CDW Printer HL-4040CDW Printer DCP-9040CN Printer DCP-9045CDN Printer DCP-9042CDN Printer MFC-9440CN Printer MFC-9450CDN Printer MFC-9840CDW Printer Simple installation method: Step-1:Shake for 5 seconds to loosen toner powder distribution Step-2:Remove the seal tape from side of the toner Step-3:Remove orange rings from side of the toner Step-4:Insert the toner cartridge into your printer The latest upgraded chip: Adapt to the latest upgraded chips that can be quickly identified, ensure higher compatibility and provide a lasting printing experience with excellent performance! Printing Performance: Our TN115 toner cartridges are made of high-quality carbon powder nano-level manufacturing process, with firm fixing, high blackness, non-toxic and harmless, bringing users a good experience. Aftersales and Warranty: If any of our items are defective, guaranteed money back; reach us via: 1. “Order List” -> Click “Contact Seller”. 2. Click the store name link under “Add to Cart”-> Click “Ask a question”.