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In the curve I copied there are no toner parts, just one system where all the inks follow the curve of the K ink. So instead of using LINEARIZE, as I did in the original profile, it is possible to equalize input/output values for digital negatives by putting a curve in the K. After reading Roy's previous comment I realize that since there are no gray parts in my profile the lines GRAY_HIGHLIGHT=4, GRAY_SHADOW=4, GRAY_GAMMA= 1 are not operative, so I took them out for the following example.
To calibrate, you would install the profile with CURVE_K= "0;0 100;100", then build a curve to equalize input/output, and insert the numbers in the CURVE_K = You should definitely see a difference between the corrected and uncorrected files

#PRINTER=QuadR3000
#CURVE_NAME= Carbon100 #Based on Carbon Tissue #222, 16 grams of Black Cat Ink with tissue coated to a wet height of 0.9mm.
#Profile when printing a step wedge gives a DR (density range) of approximately log 2.50.
#With Tissue #222 sensitize with a 8% potassium dichromate solution, diluted 1+1 with acetone, approximately 10 ml per 8X10 sheet, applied in two coatings with a roller. 350 ULF units.

GRAPH_CURVE=YES
N_OF_INKS=8
DEFAULT_INK_LIMIT=55

LIMIT_K=25
LIMIT_C=25
LIMIT_M=1
LIMIT_Y=25
LIMIT_LC=1
LIMIT_LM=1
LIMIT_LK=25
LIMIT_LLK=1
CURVE_K= "0;0 6;10 10;15 16;21 24;29 30;35 38;41 43;45 51;51 55;55 67;65 73;70 82;78 88;85 93;90 100;100 100;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

Sandy

QTR-Quadtone RIP

Re: [QuadtoneRIP] Curve in GRAY_CURVE has no effect?

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