Canon PGI-520 Ink Cartridge Black Twinpack. For use in Canon IP3600 and IP4600 printers. OEM: 2932B009. For even better economy from your Canon PIXMA inkjet printer, choose this twin pack of Canon 520 Black Inkjet Cartridges with pigment-based black ink specifically designed for text documents. Each Canon PGI-520BK cartridge uses Canon FINE (Full Photolithographic Inkjet Nozzle Engineering) print heads for incredible crispness and detail. These printheads, combined with the rich and crisp LUCIA ink, provide exceptionally long-lasting prints under the Canon ChromaLife 100 system.