Digital BW, The Print

Thank you Sandy for posting your workflow.

Although I'm running XP, I was able to translate your settings, and the
result is a substantial improvement over my previous results.

The prints exhibit a very smooth progression across the 21-step wedge, and
have a finer dither pattern than ImagePrint, but they appear very warm in
tone.  It really would be a stretch to call them neutral.  These are
straight off the printer and haven't cured though.  If there is a
significant change in tone after curing, I will repost, but I doubt they
will cool that much.

There are two major differences between Sandy's workflow and the settings I
was using previously.  1) I was using the default RGB profile (EW-Adobe) in
PServer / Color Manager.  2) In Photoshop's "Print with Preview," I had the
Print Space Profile set to "Postscript Color Management."

If I understand Sandy's workflow correctly, here is what is happening:
Photoshop is converting the document from its working profile (Gray
Gamma...) to Adobe RGB.  The Epson RIP (PServer) settings tell it to expect
Adobe RGB and convert to the appropriately set paper profile.  Setting
grayscale control to "Image" tells the RIP to use only the black and light
black inks (set in a completely different place to "Matte BK + Light BK")
when printing gray which results in the warm tone.  If that is the case, I
expect that the prints will be free from metamerism -- I'll check this
tomorrow.

I just confirmed that setting Photoshop back to "Postscript Color
Management" is what caused the horrible red cast in the images.

One mystery solved... now, how do you get the Epson RIP to print neutral
rather than warm?

--Tom