Amazon.com: Canon PGI-5 BLACK Compatible to iP3500/iP3300,iP4300,iP4500,iP5200R/iP5200/iP4200,MP520/MP510,MP610/MP600/MP530,MP800/MP500,MP800R/MP830/MP810,MP950,MP970/MP960,MX700,MX850 Printers : Office Products
Amazon.com: ASHATA Print Head QY6-0086 Replacement Printing Printhead for Canon iX6850 Series, for Pixma MX720 MX721 MX722 MX725, for Pixma MX920 MX922 MX924 MX925 - Single Black : Everything Else