Digital BW, The Print

I am a fairly new USA user of the Epson 2200 and I am attempting to 
use the Epson Gray balancer. I've downloaded an English version of 
the software and am using the Kodak Gray Scale card. I am confused on 
what print settings to use when printing the initial "tortoise shell" 
test target. An on-line tutorial and the Epson Gray balancer 
documentation both say "print" but do not discuss whether to print 
with "Color Controls" or "ICM, No color Adjustment."

I have printed two test targets on Epson Premium Semigloss at 1440 
dpi with Photo Black ink, one using the default "Color Controls, 
Gamma 1.8" and one using "ICM, No color Adjustment (NCA)." The test 
prints are significantly different. Which one should I use?

In production, I intend to use the "ICM, NCA" setting in the Epson 
driver and ICC profiles in Photoshop 7.0. However, the Epson Gray 
Balancer test grid looks strange when printed with "ICM/NCA." The 90% 
grid is solid black, with no visible difference in any of the 
squares. The 70% grid has a green color cast. The 45% grid has a blue-
green color cast, and the 20% grid has a magenta cast on the top half 
and a blue-green cast on the bottom half.

In the "Color Controls, Gamma 1.8" version, the 90% grid has a 
magenta cast on the top and a green cast on the bottom, and the 
individual squares are visibly different. All the other grids (70%, 
45%, 20%) have a strong magenta cast.

I understand I may have to go to the "Realignment" step to get 
differentiation in the 90% grid, but I would appreciate your advice 
on which Epson print driver settings to use.