QTR-Quadtone RIP

> -----Original Message-----
> From: QuadtoneRIP@yahoogroups.com [mailto:QuadtoneRIP@yahoogroups.com] On
> Behalf Of melvin9347
> Sent: Saturday, September 30, 2006 5:38 AM
> To: QuadtoneRIP@yahoogroups.com
> Subject: [QuadtoneRIP] newbie curve creator
> 
> Hi,
> I have an Epson stylus 870 and want to print onto Kodak premium photo
> paper. I have mot got the MIS ut2 inks yet as my son is bringing them
> over from the US this week with his B&W negs. My problem is I will
> have to generate the curves and print the photes in the 2 days that
> he will be with me. The problem that Roy or Tom can help me with is
> that on page 15 of the manual Tom talks about Quadtone inks re
> comparing each lighter ink with the next darker ink then converting
> its density realive to black.
> My Problem: does the blackest ink always remain as the base line
> against which all the others are compared in turn as you move down
> the grays?


Yes. You compare LK with K and then compare LLK with LK and the compute its
relative blackness to K.

> From the manual I can read a possibility of moving down pairs of
> grays and compairing max gray against each other then some how
> relating that back to max black from the black ink.
> Second query: In  an attempt to resolve this I looked at the .qidf
> file for an Epson photo paper for the Epson 1270 which has, I
> believe, the same print engine as my 870 and shock horror Max black
> does not appear to be used.

I haven't used the UT2 inks but I have used the UT7 on a 2200. The inksets
use Eboni in the K position. Eboni is a matte black and isn't used on glossy
papers. In the UT7 curves the two darker toners are mixed to make black. I
get fairly good dmax with this technique. However with my UT7 inks, and I
think the UT2 will be similar, you will still get bronzing on glossy paper.
You can reduce the brinzing by spraying the image with PermierArt
Printshield.

> Help as it is along way from Boston to get here next week and have no
> prints
> 
Tom Moore