The IPF8300 with True Black and White is even easier, and WAY more linear and precise than that crazy Canon half ass solution for monochrome. The difference between day and night really. All you need is to plug in your Eye One and linearize any of the stock curves they have available for similar papers. I tried using those curves on similar papers and they were ok , but no where as precise as making my own custom curves, but you need a good spectro for sure. It is very easy though, and very fast.
If you look at the color inks being used with this approach, for neutral set up you are using no color ink at all. You can't do this with Epson, and even with my Hp Z if I don't use some color ink it's going too cool. But the HP color inks are so amazing permanent and you need so little of it that it never bothered me to use it that way. They don't look different from daylight to warm tungsten spots.
Would it be possible to use the Canon driver color mode for B&W, create a QTR ICC profile with Photoshop curves + linearisation and get a Dmax, linearity and paper white B&W tone similar to TBW? When printing a B&W image through the color mode is the Canon driver keeping out color ink as much as possible like the HP Z3100 driver? As long as TBW does not run on Windows and with my preference to use Qimage I would go that route if I ever buy an 8400. I found the creation of more Photoshop curves to drive an HP Officejet filled with a custom quad inkset not that difficult after I made the first curve set. Paul Roark does it all the time for Epsons. The curves in the Canon case do not even have to partition grey inks but only add some color if needed, the linearisation + profile creation is quite automatic with the QTR tools. Of course one can find ICC profile creation software that can do similar jobs but I have seen Dmax clipped quite often then. Still do not understand why that should happen.
Met vriendelijke groet, Ernsthttp://www.pigment-print.com/spectralplots/spectrumviz_1.htm
December 2012, 500+ inkjet media white spectral plots.