The Canon NPG-59 Toner BK OTH is a black toner cartridge that is compatible with certain Canon image, advance copiers and multifunction printers. This toner cartridge has a high yield capacity, which means it can print many pages before needing to be replaced. This is very effective and economical to use. Canon NPG-59 Toner BK OTH provides good print quality and low printer damage too. The precise number of pages that can be printed is determined by factors such as the type of paper used, printer settings, and the complexity of the printed document.