Canon Knowledge Base - Replace ink cartridge(s) iP1700 / iP1800
Amazon.com: DoorStepInk Remanufactured in The USA Ink Cartridge Replacements for Canon PG-30 CL-31 Black Color 2PK for PIXMA iP1800 iP1900 iP2600 MP140 MP190 MP210 MP470 MX300 MX310 : Office Products
Amazon.com: Canon PG-40 Black Twin Pack Compatible to iP2600, iP1800, iP1700, iP1600, MX310, and MX300 : Office Products