For over three decades, Katun has been supplying products to the imaging industry that provide performance that is equal to or better than that of the original manufacturers products. Our goal is to bring this same value proposition to all our customers: top quality products, exceptional service, competitive pricing and unsurpassed value. Katun Performance Black Toner Cartridges for use in Hewlett Packard LJ 2400, 2410, 2420-series, 2430-series (High) printers provide OEM-equivalent print quality at significant cost-savings over the OEM. This Katun Performance part replaces Hewlett Packard part number Q6511X. Yields approximatelly 12,000 pages and installs easily and quickly. Katun monochrome toners provide image quality, performance and yields that are equal to or better than that of the original manufacturers products Remanufactured: Katun incorporates stringent quality control checkpoints into all phases of the toner cartridge remanufacturing process, from its STMC-certified research and development lab to the ISO-9002 certified production facilities where the cartridges are remanufactured. This ensures consistent, reliable performance.