HP C4844A No 10. Large Black Ink Cartridge 69ml for Designjet 500/500PS/800/800PS/ colourpro 500/CAD/GA/P2000C /CN/2500C/CM/ Business Inkjet 2200/2250 /2600/1700series. Page life - 1400. This cartridge uses a new formulation of pigment-based ink and resists fading for longer-lasting documents with great detail. Genuine HP technology means it works even better with HP specialty papers and printheads. This cartridge is packed with enough black ink to print up to 2,200 pages.