HP Black (C4127A, C4127X) Yield 15000 Supported Printer Model: LaserJet 4000, 4000N, 4000T, 4000TN, 4000se, 4050, 4050N, 4050T, 4050TN, 4050se – JUMBO Toner- 50% More Yield!Call 316-687-2255 for pricing.