CANON 2933B001 CLI-521BK ORIGINAL BLACK CARTRIDGE (510PG) For CANON: PIXMA iP3600 / PIXMA iP4600 / PIXMA MP540 / PIXMA MP620 / PIXMA MP630 / PIXMA MP980 / PIXMA MX860 / PIXMA MP550 / PIXMA MP560 / PIXMA MP640 / PIXMA MP990 / PIXMA iP4700 / PIXMA MX870 Billable