The HP 98 Black Ink Cartridge is a pigment-based ink that provides black text and graphics on a professional grade. Unlike generic ink cartridges, original HP inks are pure and free from contaminants, so they can produce optimal and reliable results that consistently outperform off-brand cartridges. Each black printer ink cartridge prints up to 420 pages giving homes and offices a convenient print option that provides sharp color saturation. Each cartridge is designed to be easily replaced when low. Simply pop out the old one, insert the new one and close the lid to allow the printer to reset and ready itself to print.