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Digital BW, The Print

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QTR2 problem with MIS Ultratones and 2100

2003-08-07 by Daniel Staver

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

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