Canon PG-240XL Black Ink High Yield for PIXMA Photo All-in-One Printers MG2120, MG2220, MG3120, MG3220, MG3520, MG3620, MG4120; PIXMA Office All-In-One MX372, MX392, MX432, MX452, MX472, MX512, MX522 - Inkjet Cartridge, Black (High Yield) (OEM Page Yield) CAU