Amazon.com: Genuine Canon GPR-55 Black Cyan Magenta Yellow Toner Set for use in The Canon imageRUNNER Advance C5535i / C5540i / C5550i and C5560i : Office Products
Canon 0481C003AA GPR-55 Toner Cartridge Black imageRUNNER ADVANCE C5535i C5540i C5550i C5560i II III DX 6000i - Sun Data Supply
Canon 0484C003AA GPR-55 Toner - JTF Business System
Amazon.com: Genuine Canon GPR-55 Black Cyan Magenta Yellow Toner Set for use in The Canon imageRUNNER Advance C5535i / C5540i / C5550i and C5560i : Office Products