Let's start from Gary's Frontier.
It has a non-color aware controller, which by default converts anything from sRGB to emulsion profile using sort of device link profile. This conversion is of perceptual type, and it is hyper aggressive as "saturation" rendering intent (something that caused that Gary demanded from the service to straighten the bananas):
...so sending an sRGB file
...results in something like this, actually perceptual conversion uses some colours beyond sRGB, so it cannot be replicated on sRGB display, but you should get the idea:
You can simulate this behaviour by selecting the printer profile and check "Preserve RGB colours" in Photoshop soft proofing dialog box
http://products.fujifilm.eu/support/color_management/photographic/frontier_rgb.htmlTo counteract this aggressive rendering you can just send a target thru it, create a profile, and make a pre conversion, that will calm it down:
It doesn't matter if you embed ICC profile or not, Frontiers controller is ICC profile colour blind - it only increases the file size, so that why we may want to uncheck "embed ICC profile" while saving pre converted images.
Frontier has two working modes - sRGB (above mentioned), and PD. The second mode is more interesting from our perspective, as it is something like "ICM off" "no colour correction" known from printer drivers. It doesn't seem to proceed any limiting conversion, and allows us to utilise the whole gamut of c-print emulsion. As in sRGB mode case, we have to create/download profile created in PD mode, convert the image rendered to a large colour space, and enjoy much more saturated colours from blue-emerald-phtalogreen region, and better tonality (there's only one conversion, so there's less rounding errors). If you have a wide gamut display you can check the difference switching between sRGB and PD mode profiles:
http://products.fujifilm.eu/support/color_management/photographic/frontier_pd.html...and here's my test file, it has a lot of out sRGB blue-turquise region colours:
https://dl.dropboxusercontent.com/u/19059944/ECItest.jpgThe catch is that we have to
force the printer operator to switch Frontier from sRGB to PD mode, and make sure he really did it - otherwise we'll get hyper saturated results.