A toner cartridge also called a laser toner is a disposable component of a laser printer. Containing a toner powder mixed with a super fine and dry mixture of plastic materials along with carbon, combined with black or other colouring agents helps in printing the actual image on paper. The Ac black toner cartridge coming under the LaserJet cartridges category is patronized for its superior black printing colour. Compatible with many printer models, the Prash black toner cartridge employs the LaserJet print technology. Suitable for - PRASH 3117 Compatible For Xerox Phaser3117/3122/3124/3125 Cartridge Black Toner, Page Yield 2500.