TRUE IMAGE Compatible Ink Cartridge Replacement for HP CE255X ( Black ) High Page Yield: 12,500 pages @ 5% coverage Compatible Printers: HP LaserJet P3011, LaserJet Enterprise P3015D, P3015DN, P3015X, P3016, LaserJet Enterprise 500 MFP M525F, MFP M525dn, LaserJet Enterprise flow MFP M525C, LaserJet Pro 500 MFP M521DN, M521DW New Replaces: HP CE255X Certifications: ISO9001, ISO14001, CE, STMC Warranty: Lifetime 100% satisfaction guarantee