HP C8543X Jumbo Compatible Black Toner Cartridge . Compatible with C8543X - Black. Fits Models: LaserJet 9000, 9000MFP, 9000DN, 9000HNS, 9000N, 9040, 9040DN, 9040MFP, 9040N, 9050, 9050DN, 9050MFP, 9050N - JUMBO Toner- 27% More Yield!