The black HP Q6511X Toner Cartridge produces dark lines and solid shades on every page. This 12,000-Page-Yield HP 11X Toner Cartridge brings presentations to life. Easy to use and install, the HP LaserJet Print Cartridge makes printing hassle-free. Yielding up to 12,000 pages, the HP Q6511X Toner Cartridge provides professional-quality ink that will last you for quite awhile. The 12,000-Page-Yield HP 11X Toner Cartridge is compatible with HP 2420, 2420d, 2420dn, 2430, 2430n, 2430tn, and 2430dtn LaserJet printers. Get professional looking documents with the black HP Q6511X Toner Cartridge. HP Q6511X (HP 11X) Toner, 12000 Page-Yield, Black: * Black Ink * Page yield: 12,000 pages * Compatible with HP 2420, 2420d, 2420dn, 2430, 2430n, 2430tn, 2430dtn LaserJet printers