Low total cost of ownership saves you time and money hp color laserjet c4191a black toner cartridge for the color laserjet 45004550 printer series maximum capacity cartridge prints approximately 9000 pages features hp color laserjet 45004550 printing supplies provide consistent vibrant colours and clear sharp black text and lines with a specifically formulated microfine toner which is chemically grown for uniform particles and consistent colour hp color laserjet 45004550 printing sup