Canon : PIXMA Manuals : MX920 series : Replacing an Ink Tank
Amazon.com: Inkjetcorner Compatible Ink Cartridges Replacement for use with MX920 iX6820 MG5620 MG6620 MG5622 MG6600 iP7220 Printer (4 Big Black 4 Small Black 4 Cyan 4 Magenta 4 Yellow, 20-Pack) : Office Products