Hp color laserjet 4600 smart printing supplies are designed to work precisely with hp color laserjet 4600 series printers for outstanding results new features are integral to the printer design creating a highly advanced printing system features designed to work together with the hp color laserjet 4600 series printers for optimum output and reliability use 2nd generation spherical chemically grown toner for more accurate and consistent colour print quality improved pigments and gloss pro