Howard,
Do both QTR and Roark's Curves patches have the same density in the 96 \u2013 100?
When you say banding, you mean the horizontal type associated with the print head?
John
-----Original
Message-----
From: QuadtoneRIP@yahoogroups.com
[mailto:QuadtoneRIP@yahoogroups.com]On Behalf
Of steinbe2003
Sent: Thursday, July 28, 2005 9:02
PM
To: QuadtoneRIP@yahoogroups.com
Subject: [QuadtoneRIP]
UT7Profiles-Banding & Irregularities in Deep Shadow Area
I am very new at this. I'm looking for help . I have
been
exploring QTR
with UT7 inks on the 2200. There were two profiles provided in the
QTR
download for
matte paper.
1)UT7-EEM_cool
2)UT7_EEM_warm
I printed out
some 29 step grayscales {standard 21 step with additional steps at
either end
to closely
evaluate shadow and highlight regions). I printed these with various
blends of
cool and warm.
They uniformly exhibited what appeared visually to be very good
tonal
separation.
However there was one problem. In the 96% to 100% region there was
severe
banding as well
as a lightening of the tone. Nozzle and alignment checks were
performed
prior to
printing the grey scales.
I printed the
greyscales useing Roark's Curves and this problem did not occur. I
would
really like to
continue with QTR. Has anyone encountered similar problems when using
these profiles?
Does anyone have suggestions as to resolving
this
difficulty? Any
help will be very much appreciated.
Howard