HP Ink Cartridge 82 Manufacturer Reference Number (equivalent): C4912A. Original or Compatible: Original. Ink Volume: 69 ml. Print Colour: Magenta. Compatibility: HP Designjet 500 (24 ),Designjet 500 (42),Designjet 500 DS,Designjet 500 E,Designjet 500 M,Designjet 500 Plus,Designjet 500 PS (24 ),Designjet 500 PS (42),Designjet 500 PS Plus (24 ),Designjet 500 PS Plus (42),Designjet 500 PS,Designjet 500,Designjet 510 (24 ),Designjet 510 (42 ),Designjet 510 DS,Designjet 510 Plus,Designjet 510 PS (24 ),Designjet 510 PS (42 ),Designjet 510 PS,Designjet 510,Designjet 800 (24 ),Designjet 800 (42 ),Designjet 800 PS (24 ),Designjet 800 PS (42 ),Designjet 800 PS,Designjet 800,Designjet 815 MFP,Designjet 820 MFP,Designjet CC 800 PS.