Xerox Black Cartridge for Color Laser Jet CM4540 Series - 6R3004-(CE264X) - Compatible with HP Color LaserJet series CM4540 - Yields equal to or better than OEM cartridges or drums - Total performance qualityCompatible Printers: HP Color LaserJet Enterprise CM 4540 Series, HP Color LaserJet Enterprise CM 4500 Series, HP Color LaserJet Enterprise CM 4540 fskm MFP, HP Color LaserJet Enterprise CM 4540 f MFP, HP Color LaserJet Enterprise CM 4540 MFP