Page Yield*: 3500 *Per Cartridge at 5% coverage (ISO/IEC standard) These remanufactured toners contain up to 60% new parts including brand new wiper blades, OPC drums, and other internal components, and an electronic smart chip for accurate toner level Compatible with the following Canon LaserClass Printers: 310, & 510 Color: Black Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.