This is the Black Printer Cartidge from Canon. The ink contained in all Canon cartridges has been specially developed for Bubble Jet printers to maximize print quality and optimize printer performance, and has been tested to ensure its compliance with strict quality requirements set by Canon. Bubble Jet printers utilize an ink ejection process that is totally different from other printing technologies. Quality of print is the deciding factor for many purchasers of printers and because Canon inks and printers are designed together to perform at optimum printing quality, Canon recommends using Canon genuine ink for your Canon printer.