Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Clayton Jones" <cj@...> 
wrote:
>
> Hello Eddie,
> 
> >Isn't it also true that the printer also uses a tiny bit of yellow 
> >(or some other color and not just the K, LK, LLK)?
> 
> I can't say for certain about yellow.  Steve Karafyllakis just got a
> 3800 and made a PK "Black" print (a step wedge with ramp) on glossy
> paper which I have here and am examining with a 6x loupe.  It's
> definitely not a BO print.  I can see what looks like 3 different
> shades of black and gray: there's a crossover point at 25% where LK
> dots begin to come in on top of the LLK, and again at 55% where PK
> dots begin to overlay the LK.
> 
> All I can see are gray and black dots, nothing that looks like color
> dots (C, LC, M or LM).  However the dots are so tiny I suppose it's
> possible that some yellow could be in there and hard to see, but it
> doesn't look like it to me.  I doubt that Epson would call this option
> "Black" and then put some color in there. Did you read this somewhere?
> 
> Regards,
> Clayton
> 
> 
> Info on black and white digital printing at    
> http://www.cjcom.net/digiprnarts.htm
>

Are you sure it's not just different dot sizes of K ink?
I haven't seen prints but trying out the driver I got K-only output.

Roy