This Jet Tec CL52Y Yellow ink cartridge replaces the Canon CLI-521Y Yellow ink cartridge and is for use with the following printers :

Canon Pixma Printer
iP3600, iP4600, iP4700,

Canon Pixma Multifuntion
MP540, MP550, MP560,
MP620, MP630, MP640,
MP980, MP990,

Canon Pixma Multifuntion Fax
MX860, MX870,