hp laserjet 61x black print cartridge in retail packaging
the maximum capacity hp laserjet 61x smart print cartridge is designed to work precisely with hp laserjet 4100 series printers for optimal output and reliability . the cartridge features hp smart print supplies system -- an intelligent system for carefree printing that includes real-time data on toner levels and a no-shake cartridge to minimize printer downtime . with an average page yield of 10 000 pages at 5 percent coverage the 61x is backed by an hp limited lifetime warranty .