Canon PIXMA MP640R ink cartridges and supplies. Guaranteed quality, lowest price and same day shipping! Our compatible cartridges and supplies for Canon printers are specially engineered to meet or exceed the print quality of the OEM(Original Equipment Manufacturer) cartridges. Purchasing our Canon cartridges is a great way to save money without sacrificing print quality. All our compatible Canon cartridges have one year warranty and satisfaction guarantee so you can shop with confidence and save time and money.