Yahoo Groups archive

QTR-Quadtone RIP

Index last updated: 2026-04-28 23:12 UTC

Thread

UT7Profiles-Banding & Irregularities in Deep Shadow Area

UT7Profiles-Banding & Irregularities in Deep Shadow Area

2005-07-29 by steinbe2003

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

RE: [QuadtoneRIP] UT7Profiles-Banding & Irregularities in Deep Shadow Area

2005-07-29 by John Moody

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


Re: UT7Profiles-Banding & Irregularities in Deep Shadow Area

2005-07-29 by steinbe2003

John

Thanks for responding.
The banding is horizontal & only in the 96-100% region. The Roark patches have a density 
that increases from1.54 to 1.68 looks quite normal. The QTR patches have a density of 
1.64 at 96% and it drops to 1.47 in the 97 -100%. All measured with Eye One.

Howard

--- In QuadtoneRIP@yahoogroups.com, "John Moody" <moodymz3@y...> wrote:
Show quoted textHide quoted text
> Howard,
> Do both QTR and Roark's Curves patches have the same density in the 96 –
> 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

RE: [QuadtoneRIP] Re: UT7Profiles-Banding & Irregularities in Deep Shadow Area

2005-07-30 by John Moody

It sounds like too much ink is being put down. You can back down the ink limit, which would be a fast way to see if that is a solution. If that shows promise, you should rework the profiles to your printer. Having the eye-one is a great benefit.

John

-----Original Message-----
From: QuadtoneRIP@yahoogroups.com [mailto:QuadtoneRIP@yahoogroups.com]On Behalf Of steinbe2003
Sent: Friday, July 29, 2005 1:39 PM
To: QuadtoneRIP@yahoogroups.com
Subject: [QuadtoneRIP] Re: UT7Profiles-Banding & Irregularities in Deep Shadow Area

John

Thanks for responding.
The banding is horizontal & only in the 96-100% region. The Roark patches have a density
that increases from1.54 to 1.68 looks quite normal. The QTR patches have a density of
1.64 at 96% and it drops to 1.47 in the 97 -100%. All measured with Eye One.

Howard

--- In QuadtoneRIP@yahoogroups.com, "John Moody" wrote:
> 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




Re: [QuadtoneRIP] UT7Profiles-Banding & Irregularities in Deep Shadow Area

2005-08-01 by Howard Steinberg

John

I tried your suggestion and reduced the ink limit. At about -8% the 
ramp in the region of 96-100% improved. But as expected Dmax went down. 
Thanks for your help. At this point I have to learn how to edit the 
curves. This will provide some motivation which is sorely needed since 
on my first foray in that direction I realized that with a Mac I must 
learn to do my editing in a less friendly environment. Thanks again for 
your guidance.

Howard
On Jul 29, 2005, at 2:16 AM, John Moody wrote:

> Howard,
> Do both QTR and Roark's Curves patches have the same density in the 96 
> – 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
>
>
>
>
> YAHOO! GROUPS LINKS
>
> 	▪ 	 Visit your group "QuadtoneRIP" on the web.
>  
> 	▪ 	 To unsubscribe from this group, send an email to:
>  QuadtoneRIP-unsubscribe@yahoogroups.com
>  
> 	▪ 	 Your use of Yahoo! Groups is subject to the Yahoo! Terms of 
> Service.
>
>
>
Howard Steinberg
1585 Cordova Drive
San Luis Obispo, CA 93405
(805) 543-1392

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.