Compatible with HP LaserJet 2410 LaserJet 2420 LaserJet 2420D LaserJet 2420DN LaserJet 2420N LaserJet 2430 LaserJet 2430DTN LaserJet 2430N LaserJet 2430TN. Package Content Compatible HP Q6511A (HP 11A) Q6511X (HP 11X) Black Micr Toner Cartridge. Approximate Page Yield: 12000 - Black Micr pages per cartridge at 5% coverage HP Q6511A (HP 11A) Q6511X (HP 11X) Black Micr Toner Cartridge. Prints high-quality images and texts. Microchip Included: The intelligent chips make cartridges work with your printer.