This fits:
•PIXMA iP3300, iP3500, iP4200, iP4300, iP4500, iP5200, iP5200R, iP5300, iP6600D, iP6700D
•PIXMA 500, 800
•PIXMA iX4000, iX50000
•PIXMA Pro 9000
•MP500, MP510, MP520, MP530, MP600, MP600R, MP610, MP800, MP800R, MP810, MP830, MP960, MP970
•PIXMA MX700, MX850