Digital BW, The Print

I think it is more involved than just flushing out the black line.  Can't remember where I read 
this but essentially there is some convoluted procedure involving draining all of the inks on 
one side of the printer to these cartridges and then after changing the black ink moving all of 
the inks back again.

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "chipcarterdc" <chipcarterdc@h...> 
wrote:
> I assume these are the cleaning carts you use to flush the black ink line when 
> you switch from one black to another.
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Steve Kale <
> stevekale@b...> wrote:
> > Does anyone know what this means:
> > 
> > " Ink conversion cartridges required for ink change between Matte K and
> > Photo K are delivered with the unit"
> > 
> > What are ink conversion cartridges?