Save and print even more when you shop with LD Products! This listing contains 4 Q6511A (HP 11A) black toner cartridges. Manufactured 100% brand new with all new parts including OPC drums and wiper blades, these are an economical alternative to expensive OEM (Original Equipment Manufacturer) laser toner cartridges and supplies. Our compatible Q6511A laser cartridges are backed by a two-year warranty and guaranteed to meet or exceed the same quality standards as the original (OEM) brand. These items are compatible with the following HP LaserJet printers: 2420, 2420d, 2420dn, 2420n, 2430, 2430dtn, 2430n and 2430tn. Please note, retail packaging may vary and these items will only work with printers purchased within the United States and Canada. The use of compatible replacement cartridges and supplies does not void your printer?s warranty. Our compatible toner cartridges are not manufactured by HP.