QTR-Quadtone RIP

>If I were to purchase the UTBO set for my R1800 the 3 inks 
>would go in the K, PK and GLOP position. 

>How is this different then just putting 1 ink in the K position? 

The reason 3 inks were used in the 1800 "UTBO" or "3-MK" process is that 3
were needed to suppress banding.

> I want to convert my r1800, but I want to be able to get 
> a really nice smooth black and white. Without
> grays in the mix or a diluted version (for lighter blacks) 
> I don't understand how the UTBO will do a good job of this.

You can see the smoothness comparison -- to a certain extend -- in the scan
at http://www.paulroark.com/BW-Info/R1800-Image-Structure.pdf  (My main
write-up of the approach is at http://www.paulroark.com/BW-Info/R1800.htm )

If color printing is not needed, there is another 100% carbon approach --
Eboni-6 -- that will also work in the 1800.  See
http://www.paulroark.com/BW-Info/Eboni-6.pdf  

I have not make any profiles for Eboni-6 and the 1800.  You can see from
page 9 of the Eboni-6 PDF that the dilute inks can, obviously, make an
extremely smooth print.

Paul
www.PaulRoark.com