Canon Genuine toner 045 Black Single-cartridge system For use with the Canon Color image CLASS MF634Cdw, MF632Cdw, LBP612Cdw Cartridge 045 CMYK (CMY yields 1, 300 sheets/ K yields 1, 400 sheets, ISO/IEC standard) and cartridge 045 Hi capacity CMYK (CMY yields 2, 200 sheets/ K yields 2, 800 sheets, ISO/IEC standard)