Giving you the very best prints in an instant, the HP No. 645A Yellow LaserJet Toner Cartridge is a complete solution to the problem of printing. Whether you are dealing with text, images or graphics, this cartridge can provide you with the very highest level of definition without trouble, ensuring the clarity of your prints. Installation into your machine is easy, ensuring that absolutely anybody can get to grips with this product and achieve stylish and professional results.