Compatible HP models:DesignJet: 1050 C 1050 C Plus 1055 CM 1055 Cm Plus The HP 80 Ink Cartridges are designed to work with HP 80 Printheads and Printhead Cleaners as part of a modular ink system. HP 80 Ink Cartridges are formulated to provide professional results that are always clear always sharp. Yellow Approximate page yield: 4 400 Pages Large-capacity ink cartridge is ideal for high-volume or overnight unattended printing jobs. Smart chip optimizes print quality and automatically warns you when ink is low. Recycling solution - designed to encourage recycling helping you divert materials from landfill.