Digital BW, The Print

Paul, I think you've answered a question that I've been thinking of
posting on this forum... my thread subject line would have read
something like 'There's BO printing and then there's also BO printing'!

I first encountered the term when learning this technique from Clayton
Jones, it can mean, as you say, printing only with the black
cartridge. But apparently it can also mean printing in black only but
using the K position and various color positions filled with different
shades of black.

Sometimes it's hard to follow a discussion because it's not always
clear to me, a newbie at this, which technique we're talking about.
Your comments here have helped clear this up for me, thank you!

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "pr_roark"
<pr_roark@...> wrote:
>
> 
> "Black ink only" printing; some Epson drivers have this option, and 
> some people printed B&W that way.  I use medium format Technical Pan 
> film to get the very smoothest images, so that workflow never 
> appealed to me -- until I found the small 1.5 picoliter drop of the 
> R1800 could, if used in 3 channels, produce a very smooth print.  
> Some still call that "BO" printing, although it's very different than 
> how the term has usually been used.  The Eboni-6 approach is even 
> further away from "BO" in that it uses dilute inks as well as the 
> standard Eboni matte black.