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Digital BW, The Print

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Re: [Digital BW] QTR2 on Fedora, creating and loading curves question

2004-02-20 by Roger L Sopher

On Fri, 2004-02-20 at 13:18, romanatybwg wrote:
> After tweaking the install procedure for Fedora I'm printing!
> The output is still not as good as what I was getting from PS/Paul
> Roark curves and certainly doesn't match my 2200/IP setup.
> 
> I'm comitted to fine tune my QTR install though I would be greatly
> indebted for the clarifications on the following:
> 
> 1. I'm a little shaky on manually pdating the ppd. What seems to work
> is to gedit /etc/cups/PPDS/QUAD1160.ppd to include 4 curves (as per
> Roger's suggestion) in bot Curve1 and Curve2 area (I only have
> 1160-vm-gray.txt and 1160-vm-toned.txt. No -calib... does it matter
> ?). 
> I don't run rin-quadprofile, go straight to Webmin, select -grey for
> Curve1, none for Curve2. Save.
> I can print a graywedge more or less OK.
> 
> How do I verify that the curve is loaded ?
> If I use Webmin it still shows -none.
> 
> 2. If I need to run run-quadprofile, when should I do it and why ?
> 
> 3. I'm using UT inkset on glossy papers using 1160-vm-grey. 
> Should this produce reasonable results for starters ?
> It looks like too much ink is laid out and the transitions are not
> smooth.
> 
> 4. Since the only printing method I can use is Dave Wroblewski's qpr I
> don't think I can start working on calibrating my printer/inks/paper
> combination. Is this correct ?
> 
> 5. Is there a version of qtcups available for download which would
> work on Fedora ? I tried to use one from redhat distribution to no
> avail (works for the regular 1160 driver though).
> 
> If you feel that I can brush up on this without eating the bandwith on
> this group pls send me in the righ direction.
> 
> Thanks,
> 
> Roman 

I don't think that is a great combination for glossy paper. All of the
curves were derived for matte paper, specifically EEM and there are
enough differences that I am not surprised that the results are less
than swift.

Try rerunning quadprofile. That should reload your inkset into the ppd.
It should then show up with webmin. If it doesn't it sounds like you
might have a problem with your ppd. Why don't you send me an email with
your ppd attached.

What inks are in your UT set? a black, two grays and a toned? or is it a
black and three grays. If the latter you want to load the 1160-fs
inkset.

Since the UTs have different fluid characteristics than the FS set you
are probably going to have to go through the whole calibration if you
want an ideal curve. 

For printing you aren't going to beat QPR at this stage of the game.
What it does is to produce a command line that tells lpr just how to
print using your ppd. Choose the 1160-FS inkset for the gray tone and
100/0 as the blend. The warm tone set doesn't matter if you are using FS
since it isn't used.

On the other hand, If you have a 2200 why the 1160? The quality of B&W
prints from a 2200, ultrachromes and QTR are simply outstanding, better
in some folks estimation than with Image Print. I don't have a dog in
that fight so I don't know from personal use.  I do have some 2200
prints that were made with ultrachromes and QTR that are just beautiful.

You might want to check with Carl Schofield since he is really the 2200
guru with QTR.


Roger

rlsopher@...
http://deCorrales.com

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