HP 11 Yellow Original Printhead (C4813A) HP 11 ink printheads work with: HP Business Inkjet 2800, 1000, 1100, 1200, 2300, 2600, cp1700. HP Designjet 10, 20, 50, 100, 120, 70, 100, 111, 500, 510, 800, 815, 820. HP Officejet 9110, 9120, 9130. HP Officejet Pro K850, K850dn. Up to 2x more prints with Original HP ink vs refill cartridges. Printhead Original HP ink cartridges: genuine ink for your HP printer. What's in the box: New Original HP 11 printhead (C4813A) Color: Yellow Replacement ink cartridge for Hewlett-Packard printers Yellow color Easy to install Produces bright color prints Fast-drying and smudge-free