Print Cartridge delivers professional print quality and excellent value to your business. Reliable performance means less user intervention and more productivity. To ensure consistently outstanding results, Hewlett-Packard LaserJet print cartridges and printers are designed together. Interactive HP Smart Print technology makes automatic adjustments to optimize print quality and enhance reliability. HP's microfine toner provides highly accurate placement and control to ensure consistently sharp text and smooth grayscales. Receive automatic alerts when a print cartridge is running low and monitor its remaining life. Designed for use with HP LaserJet 4250 and 4350 Printers. Yields 20,000 pages.