Canon Knowledge Base - Replace ink cartridge(s) MP480
Canon Knowledge Base - Reseat ink cartridge MP190
Parts of the printer- Compatible Ink Cartridge Replacement Fit for Canon PG-510XL CL-511XL, to Use with Pixma IP2700 MP240 MP250 MP280 MP480 MP490 Printer (1 Black+1 Tri-Color) -Environmentally frie : Amazon.co.uk: Computers