No. 11 ink cartridge works as a modular system with Hewlett-Packard No. 10 black ink cartridges and HP No. 11 printheads. It is designed for use with Hewlett-Packard Officejet Printers K850, K850dn, 9110, 9120, 9130; Business Inkjet Printers 1000, 1100d, 1100dtn, 1200d, 1200dn, 1200dtn, 1200dtwn, cp1700, cp1700d, cp1700ps, 2200, 2200se, 2200xi, 2230, 2250, 2250tn, 2280, 2280tn, 2300, 2300n, 2300dtn, 2600, 2600dn, 2800, 2800dt, 2800dtn; Designjet Printers 10ps, 20ps, 50ps, 70, 100, 100plus, 110, 110plus, 110plus nr, 110plus r, 111, 120, and 120nr. Genuine HP-formulated dye-based inks generate brightest possible colors and photo-perfect color images.