Carrot's compatible laser toner cartridges and supplies for HP LaserJet 4300tn are designed to offer the best print performance, dependability and consistent yields that meet or surpass HP OEM (Original Equipment Manufacturer) specifications for the HP LaserJet 4300tn and offer high-quality output. These compatible toners are brand new and are a smart alternative to high-cost OEM HP laser toner cartridges and supplies, offering substantial savings over the brand-name laser toner cartridges and supplies. Using compatible replacement laser toner cartridges and supplies for your HP LaserJet 4300tn will not void your printer warranty. Carrot Ink guarantees 100% satisfaction on quality LaserJet 4300tn laser-toner cartridges and printing supplies.