HP 88 black ink produces crisp, black text every time at fast speeds. Hewlett-Packard's proprietary ink is specifically designed to keep pace with you in the office. Get rich, deep blacks with pigment-based black ink, crisp, sharp text with more accurate drop size and placement and quick-drying for consistent results at fast print speeds and high volumes. HP Smart Printing technology in HP supplies and your printer ensures reliable, consistent results by making automatic adjustments that optimize print quality. Cartridge is designed for use with Hewlett-Packard Officejet K550, K550dtn, K550dtwn, K5400, K5400dn, K5400dtn, K5400tn, L7480, L7550, L7580, L7650, L7680, L7750, L7780, K8600 and K8600dn. Cartridge yields approximately 850 pages.