QTR-Quadtone RIP

Colin,

There is a hard line break in the middle of your linearize data  
line.  If I install it as is then only the data up to 63.87 is used.   
Take out the break and it installs properly.  I don't know if the  
break is in your original file, but if it is take it out.

Carl

On Dec 10, 2007, at 2:18 PM, colingruk wrote:

> --- In QuadtoneRIP@yahoogroups.com, Carl Schofield <list@...> wrote:
>>
>> Colin,
>>
>> I haven't used Kayenta.  Is this an RC paper for PK ink?  If yes,
>> then a dmax of 1.72 seems very low.  Could you please post your qidf
>> file and tell us what your ink assignments are.
>>
>> Carl
>>
> Hi, Carl
>
> Kayenta is a matt paper which I bought stocks of after reading Clayton
> Jones article at http://www.cjcom.net/articles/digiprn5.htm .  It is
> double sided and I intended it to replace EAM/EEM as a proofing paper
> but grew to like it in its own right for its blacks with Eboni.
>
> I am using three Eboni bottles connected to the MK, PK and Y  
> positions.
>
> The best linearization I can get is with an ink limit slider set at –5
> and gamma set at –2.  I started trying curve adjustment layers to
> improve things.
>
> The QIDF file contents, stripped of Paul's notes for brevity, are as
> follows:
>
> PRINTER=QuadR1800
> CURVE_NAME=3MK-Start_Kayenta_Yellow
> GRAPH_CURVE=YES
> N_OF_INKS=8
> DEFAULT_INK_LIMIT=100
> BOOST_K=
> LIMIT_MK=70
> LIMIT_C=
> LIMIT_M=
> LIMIT_Y=70
> LIMIT_R=
> LIMIT_B=
> LIMIT_PK=70
> LIMIT_GL=
> N_OF_GRAY_PARTS=0
> GRAY_HIGHLIGHT=10
> GRAY_SHADOW=10
> GRAY_OVERLAP=
> GRAY_GAMMA=1
> GRAY_CURVE=
> N_OF_TONER_PARTS=0
> TONER_HIGHLIGHT=10
> TONER_SHADOW=10
> TONER_GAMMA=1
> TONER_CURVE=
> N_OF_TONER_2_PARTS=0
> TONER_2_HIGHLIGHT=10
> TONER_2_SHADOW=10
> TONER_2_GAMMA=1
> TONER_2_CURVE=
> N_OF_UNUSED=5
> UNUSED_INK_1=C
> UNUSED_INK_2=M
> UNUSED_INK_3=R
> UNUSED_INK_4=B
> UNUSED_INK_5=GL
> CURVE_MK="0;0 25;2.9 50;4 75;7.5 80;9 85;11 90;14 95;23 100;40 ""
> CURVE_Y="0;0 5;0 10;0 20;0 50;3 75;9 80;10.5 85;12 90;16 95;24  
> 100;40 ""
> CURVE_PK="0;0 10;0 50;3.5 75;8 80;10 85;13 90;17 95;25 100;40 ""
> LINEARIZE="95.32 91.06 87.22 82.90 79.00 75.33 72.33 69.38 66.47 63.87
> 60.80 57.33 52.79 48.33 43.80 38.80 32.80 28.92 26.19 22.34 20.37 "
>
> I am sorry to burden you, but am grateful for your help.
>
>
> Colin
>