Canon Pro-10 ICC Profiles
Profiles are created using Argyll CMS and an XRite i1Pro2 Spectrophotometer. All are very high quality profiles and the recommended Rendering Intent is Relative Colorimetric.
First check which inks you are using.
The SE or Signature Edition Inkset is the newest.
Newest Signature Edition Inkset ( Here)
Older PC72V2 Inkset ( Here)