OEM HEWLETT PACKARD C4912A HP MAGENTA INK JET, 1-#82 or 82, MAGENTA INK 69ML FOR: HP DesignJet 500 C7769B, HP DesignJet 500 C7770B, HP DesignJet 500ps C7770C, HP DesignJet 800 C7779B, HP DesignJet 800 C7780B, HP DesignJet 800ps C7779C, HP DesignJet 800ps C7780C, HP DesignJet 815MFP Q1279A ...also see; c4911a,c4912,c4913a,c4844a
