Digital BW, The Print

I'm hoping the new Eboni carts I just received have been filled 
with the wrong ink because the results are closer to sepia than 
black.

I have been working up BO images and printing with Epsons 
standard T007 cart on my 1280.  When my first 3 carts of Eboni 
arrived I was able to make direct comparisons with a range of 
BO images using the exact same workflow.  From what I have 
read here and elsewhere, I expected the eboni to be slightly  
warmer.  It is a lot more than "slightly warmer".   I don't object to a 
sepia tone and some of my images look better printed with 
eboni.  It just ain't black.

I have run out of the original MIS ARC-Black, so I could not make 
direct comparisons with the older MIS black. 

Oddly,  text printing with Eboni is substantially black and I have 
several BO images including a  very black  dog at the White 
Sands  that show the dog as black, black. I can't make him 
chocolate, no matter how hard I look. However, with the Eboni 
printing he is now a very black dog in a sepia world instead of a 
grey world.

If I put an Eboni print in a neutral environment, away from other 
prints,  it just looks like sepia. 

I have not tried the other 2 carts and will probably just print with 
this cart to take advantage of the sepia tone. The subtle sepia 
hues in the midtones is wonderful in some images.

  I hope the other carts will get more black, since there are some 
images that will just look better in a blacker black.

Am I the only one to have this reaction, or is it obviously a 
missmarked cart?

                         Lincoln