HP No. 80 dye ink cartridges and printheads are designed to work with the HP Designjet 1050C, 1050C Plus, 1055CM, and 1055CM Plus printers to provide the ultimate in photo-quality production printing. HP No. 80 printheads with JetExpress technology deliver hassle-free, clear, sharp results fast. With 512 nozzles on each of the one-inch-wide printheads, HP's Jetexpress technology helps the printer achieve print speeds up to six times faster. Smart chips embedded into each of the printheads and ink cartridges track printhead wear and ink usage and automatically work with the printer to ensure precise black-and-color lines and high quality color renderings, maps and graphics every time. HP No. 80 ink supplies are HP engineered and tested to work precisely with HP Designjet 1000 Series printers and compatible HP printing material to deliver the professional results you demand. HP No. 80 C, M, and Y ink cartridges come in two sizes to fit your printing needs: 350 ml for high-volume, overnight or unattended printing; or 175 ml for smaller, less-frequent color print jobs.