This was sent to me directly by someone at EFI at one point-- it is ridiculously useful for making awesome black and white prints on an EFI rip--
I have had the best luck using these instructions with an Epson 11880 and 4880 (or any x880 series, as I believe the black inks to be the most neutral across the lightness range)
In order to use these instructions WITHOUT an integrated colorimeter in your printer (eg the x990 series) you must print out the targets, then MANUALLY DRAW IN black lines that would usually be white spaces in between color patches, otherwise your spectrophotometer will not be able to read the sheets. More explanation on this if anyone needs it.
Also the instructions in here are for using the halftone drivers-- this is NOT necessary, it works just as well using the CT driver, and perhaps even better since when using the contone driver the black tones seem to come out more neutral
this can get complicated--- so feel free to ask me anything about doing this-- i've gotten it pretty solidly down at this point and it works super well--