HP 42A Original LaserJet Toner Cartridge Black Q5942AEven now we are in the age of computers, paper documents are essential for the smooth operation of the majority of businesses. To ensure your prints always have a professional level of quality, HP No. 42A Black LaserJet Toner is the perfect solution. The ink is designed to fix to your page quickly, preventing smudging and bleeding. Whether you are printing text or images, this helps to keep clarity at the optimum level and prevents wasted prints.