QTR-Quadtone RIP

Hi Folks,

Sorry if this has been asked previously but I searched the archives
and couldn't find the answer so here goes...

I'm using a 2200 with the MIS UT3D inks with Eboni installed.  I've
managed to stumble upon a "good enough" solution for the Lenswork tone
on EEM and PA270 but that's with the Eboni as the K ink. 

I'd like to be able to use the Costco Glossy too but without swapping
the black for PK.  I've spent way too long on this so before I waste
any more time is this even possible?  I've managed to get the LAB B
tone about correct from 0 to about 65 but then it dips and then goes
way up.  I can't figure out how to tame that last bit of shadow tone.
 Any words of wisdom?

Thanks,

Richard Cooke
Lake Forest, CA USA

>I'm using a 2200 with the MIS UT3D inks with Eboni installed. ...

>I'd like to be able to use the Costco Glossy too but without 
>swapping the black for PK.

The UT-3D M-position ink is a version of PKN.  
See http://www.paulroark.com/BW-Info/UT-3D_Readme.pdf at page 5.

> I've managed to get the LAB B tone about correct from 0 to about 65 
> but then it dips

As it should if you started to use lots of the PKN (3D-M).  See the graphs
on the page noted above.

> and then goes way up. 

That sound like you have 3D-C coming into the mix.  (If the glossy gets very
dull, it could also be Eboni getting into the act.)

Paul
www.PaulRoark.com

Hi Paul,

Thanks for the info.  I've gone through 13 iterations of printing out
the 21 step random file.  I don't think it's perfect but probably
close enough for a hacker like me.  This is what I've come up with:

Step	Dens	Lab	A	B	
0.00	0.061	94.70	-1.02	-5.49	- 
5.00	0.156	86.94	-0.13	-3.03	- 
10.00	0.228	81.34	0.56	-1.36	- 
15.00	0.305	75.81	1.22	0.36	- 
20.00	0.373	71.11	1.61	1.52	- 
25.00	0.440	66.76	1.93	2.59	- 
30.00	0.517	62.00	2.15	3.42	- 
35.00	0.573	58.71	2.14	3.84	- 
40.00	0.639	55.01	2.17	4.21	- 
45.00	0.706	51.51	2.15	4.51	- 
50.00	0.776	47.96	1.98	4.70	- 
55.00	0.836	45.07	1.99	4.77	- 
60.00	0.901	42.08	1.90	4.71	- 
65.00	0.984	38.50	1.71	4.68	- 
70.00	1.077	34.76	1.58	4.35	- 
75.00	1.207	29.96	1.32	3.81	- 
80.00	1.379	24.26	1.04	3.22	- 
85.00	1.522	20.09	0.98	3.02	- 
90.00	1.704	15.36	0.13	2.10	- 
95.00	1.823	12.63	-1.66	0.47	- 
100.00	2.126	6.77	-1.14	-2.29	- 

LINEARIZE="94.7025 86.9425 81.3425 75.8075 71.1075 66.7625 61.9975
58.7125 55.0075 51.5075 47.9625 45.07 42.075 38.5 34.7625 29.96
24.2575 20.0875 15.36 12.6325 6.77"


Thanks,

Richard Cooke
Lake Forest, CA USA