Save and print even more with our compatible cartridges! This listing contains 2, Q6511X 11X high yield black toner cartridges. Why pay twice as much for brand name HP cartridges when our compatible printer supplies deliver excellent quality for a fraction of the price? Our compatible cartridges for Hewlett Packard are backed by a full 2-year satisfaction guarantee and work in the following HP LaserJet printers 2420, 2420d, 2420dn, 2420n, 2430, 2430dtn, 2430n and 2430tn. Please note, our compatible toner cartridges are not manufactured by HP and will only work with printers purchased within the United States and Canada. Retail packaging may vary. We are the exclusive reseller of LD Products brand of high quality printing supplies on Amazon.