It does have it's own built in spectro and it's own target for linerization that I've used for years. But I would like to print my own linearization target and measure manually with my I1 Pro2 spectro.
I read on the page when I bought Print Tool that it supports HP printers.
I don't really need it for my Canon because I have the TBW Bowhaus software that allows me to do the same thing.
John