Digital BW, The Print

Daniel,

The partition values seem to be too high.   Do you have a scan of the 
second calibration chart, with the default ink limit set to 70 so we 
can see where you set the partition values?  For comparison, take a 
look at Roy's default 1280-VM-GRAY descriptor file below.

Carl

N_OF_GRAY_PARTS=4
GRAY_INK_1=K
GRAY_VAL_1=100

GRAY_INK_2=C
GRAY_VAL_2=44

GRAY_INK_3=LC
GRAY_VAL_3=22

GRAY_INK_4=Y
GRAY_VAL_4=8

GRAY_INK_5=
GRAY_VAL_5=

GRAY_INK_6=
GRAY_VAL_6=

GRAY_INK_7=
GRAY_VAL_7=

GRAY_HIGHLIGHT=11
GRAY_SHADOW=11

GRAY_OVERLAP=50
GRAY_GAMMA=1
GRAY_CURVE=


On Thursday, August 7, 2003, at 07:30  AM, Daniel Staver wrote:

> I got QTR2 on RedHat8 working last night.
>
> I'm using a 2100 with the MIS UltraTones and have a problem with the
> profiling. I've followed the profiling process described in the
> documentation and this is the result:
>
> http://daniel.staver.no/img/qtr2problem1.jpg
>
> It seems like one ink is reduced too much before the next one kicks in,
> and I haven't really found any setting that helps. Using a very high
> value for GRAY_OVERLAP improves the curve a little, but doesn't really
> fix the problem. Using custom linearization values measured with my
> densitometer also helps, but again, not enough to give me a completely
> smooth curve.
>
> Any ideas what I can do to fix this?
>
> I'm using the K, C, LC and Y positions, with an ink limit of 70 and the
> following values for each ink:
>
> GRAY_INK_1=K
> GRAY_VAL_1=100
>
> GRAY_INK_2=C
> GRAY_VAL_2=72
>
> GRAY_INK_3=LC
> GRAY_VAL_3=51
>
> GRAY_INK_4=Y
> GRAY_VAL_4=17
>
> GRAY_HIGHLIGHT=1
> GRAY_SHADOW=1
>
> GRAY_OVERLAP=0
> GRAY_GAMMA=1
>
> --
> Daniel Staver
> http://daniel.staver.no