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Sandy King Question All are welcome to weigh in

Sandy King Question All are welcome to weigh in

2016-12-18 by peterjbh@...

Sandy I really appreciate the wealth of information you have provided. From the building of my lightbox to studying you profiles. I do Pt/Pd printing.


Question:

I have written a profile for my 7800 which uses four inks which I'm pleased with but want to incorporate a feature from your Carbon100 profile.


Here is my profile

#7800 CONE PIGMENT INKs


Printer=Quad7800

#Curve_name=7800 4 ink LM,LK,LLK,K

CALIBRATION=NO

GRAPH_CURVE=NO



# Gray Partitioning Information


N_OF_INKS=8


DEFAULT_INK_LIMIT=50

N_OF_GRAY_PARTS=4


GRAY_INK_1=K

GRAY_VAL_1=100


GRAY_INK_2=LK

GRAY_VAL_2=42.142


GRAY_INK_3=LLK

GRAY_VAL_3=13.64


GRAY_INK_4=LM

GRAY_VAL_4=7.27



Gray_OVERLAP=15

GRAY_HIGHLIGHT=0

GRAY_SHADOW=6

GRAY_GAMMA=1

#GRAY_CURVE=


# LINEARIZE=


Before I do a final curve I want to add a feature in which the rest of the inks (M, C, LC, Y) are used but at LIMIT1 as you did below. I've tried several variations but looking at the QUAD profile I know they won't work. Can that be written into my profile above?


Thanks,

Peter


GRAPH_CURVE=YES

N_OF_INKS=8

DEFAULT_INK_LIMIT=100

LIMIT_K=25

LIMIT_C=1

LIMIT_M=1

LIMIT_Y=25

LIMIT_LC=1

LIMIT_LM=1

LIMIT_LK=50

LIMIT_LLK=1


GRAY_HIGHLIGHT=4

GRAY_SHADOW=4

GRAY_GAMMA= 1


CURVE_K= "0;0 100;100"

COPY_CURVE_C=K

COPY_CURVE_M=K

COPY_CURVE_Y=K

COPY_CURVE_LC=K

COPY_CURVE_LM=K

COPY_CURVE_LK=K

COPY_CURVE_LLK=K

Re: Sandy King Question All are welcome to weigh in

2016-12-18 by sanking@...

Hi Peter,

I don't know how to limit the ink with a partitioned profile in the same way that I do it with the single gray value profiles where all Curves follow the K. You might try adding the other inks as additional gray values, and then set these values very low so that very little ink is used, as I did below in increasing the number of gray parts to 5, and then adding Y as the 5th value of 1. This does change output of the other gray parts just a bit, but probably not enough to impact its shape.

Best,

Sandy

N_OF_INKS=8

DEFAULT_INK_LIMIT=50
N_OF_GRAY_PARTS=5

GRAY_INK_1=K
GRAY_VAL_1=100

GRAY_INK_2=LK
GRAY_VAL_2=42.142

GRAY_INK_3=LLK
GRAY_VAL_3=13.64

GRAY_INK_4=LM
GRAY_VAL_4=7.27

GRAY_INK_5=Y
GRAY_VAL_5=1

Re: Sandy King Question All are welcome to weigh in

2016-12-19 by peterjbh@...

Thank you Sandy,

I think you answered my question with your profile descriptions. I tried what you suggested before and it just puts a little Y in the beginning but doesn't follow the K. I may be trying to do something that just isn't possible with a partitioned profile.

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