To get the best out of your LBP5000 or LBP5100 colour laser printer, you need the Original Canon CART307 Black Toner Cartridge Magenta so you can effortlessly print high resolution, bold black text without worrying about any smudging. The toner has been expertly designed to continually provide optimum results the highest quality printing. With each print you will be delighted with high yields, crisp text and image printing and minimal jamming or malfunctioning equipment when you use genuine Canon products.