Ink Toner Remanufactured Toner Cartridge Replacement for HP 940 ( Black,Yellow ) 1.Listing includes: 1* Black&Yellow Printer head. 2.Replacement Printerhead ( Not made by HP ). 3.For use with: HP officejet pro 8000, officejet pro 8500, officejet pro 8500A, officejet pro 8500A plus, officejet pro 8500A premium, officejet Pro A909a, officejet Pro A910a, officejet Pro A909g, officejet Pro A909n. 4.All products covered by a 100% satisfaction guarantee and 90 days warranty 5.Our vows: we can provide a guarantee to every customers who purchased our products, once there are any problems, we will make all our efforts to help you and if you don't want to posses it , we can offer you the full refund.