Designed for HP LaserJet Pro 4001 and MFP 4101, this Original HP Toner cartridge with JetIntelligence delivers sharp, black text and graphics. Intelligently track toner levels with print-gauge technology. Cartridge is specifically made to work with HP printers so you spend less time troubleshooting problems. It produces impressive results from first page to last. Standard-capacity cartridge yields approximately 2,900 pages.