Digital BW, The Print

> 
> Have you (or anyone) tried replacing the light black cartridge with 
> another black (matte or photo) in either case (RIP or BO)? 
> 
> This might just alleviate the brown/sepia cast.
> 
> Dan

Nope.  My understanding is that it's the black ink, not the light 
black, that has a color cast.  This would make sense because when you 
print with "black ink only" mode, it only uses the single black ink 
(matte or photo), not the light black.  And you get a brownish cast 
using black only, so the color cast has to be in that single black 
ink (matte or photo), not the light black.