HP 14D Black Inkjet Cartridge Twin Pack This duo of high-yield HP cartridges features ink specially formulated for business printing. Plus, by doubling up on 14d cartridges, you save big over the cost of two sold individually! HP supplies work with the printer to make professional printing easy, cost-effective and reliable. High-yield HP print cartridges, HP papers and film and the printer are designed together to work together. Innovative toner formulations use chemically-grown toner that enables precise control and placement. Pigment and gloss enhancements provide a wide range of colors. Calibrated with HP specialty papers and smart printing system technology, these print cartridges provide consistently vibrant, accurate color and uniform gloss on high-coverage documents. Smart printing technology also enhances cost-effectiveness and ease of use. Automatic alerts advise when toner is low. Simple installation and reliable operation improve productivity for ongoing savings. The r