Canon have a series of fairly informative blogs on 'how to' with the IPF series printers
HereMuch of it is pretty generic stuff, such as set-up and basic color management etc. But there is some good informative stuff in there and an interesting insight into Canons thinking when it comes to printing.
The soft proofing blog is an interesting example - Canon advocate soft proofing the image (good stuff), but then pumping up the saturation until clipping occurs via use of the gamut warning and then just backing off. An interesting approach I have not tried before. I have preferred the Jeff Schewe approach 'TM' of duplicating the image then adjusting contrast via curves and saturation to match the original.
Worth a look if you are an IPF user/owner.