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QTR-Quadtone RIP

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solarized print

solarized print

2014-02-11 by <paulmwhiting@...>

Hello,

I posted this question over in the b/w group, but perhaps someone here might shed another light on my problem. I'm using an Epson 1400 with the Carbon-6 inkset developed by Paul Roark. I'm getting some pronounced "solarization" in shadow areas. (I put that in quotes because strictly speaking solarization is a darkroom phenomenon.) I'm using the curve for Eboni-6 which is the MIS mix that came bundled with QTR. Carbon-6 is the same inkset but mixed at home. My paper is Premier Art Smooth, in the 205 g/sq meter weight.

I tried making my own curve as explained in the QTR manual.. my first attempt, so it's probably not the best. But I still got the solarization.

Any suggestions would be most welcome... I may need to elaborate more on my setup.

Re: [QuadtoneRIP] solarized print

2014-02-11 by Pete Bergstrom

Paul, I've gotten that on occasion and the root cause was always either an actual empty cartridge or the printer-determined ";empty" - that is, the chip needed resetting.

Now I always top up all cartridges at one time when any of them need refilling and reset all the chips manually at the same time.

Pete
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On Tue, Feb 11, 2014 at 6:51 AM, <paulmwhiting@yahoo.com> wrote:

Hello,

I posted this question over in the b/w group, but perhaps someone here might shed another light on my problem. I'm using an Epson 1400 with the Carbon-6 inkset developed by Paul Roark. I9;m getting some pronounced "solarization" in shadow areas. (I put that in quotes because strictly speaking solarization is a darkroom phenomenon.) I'm using the curve for Eboni-6 which is the MIS mix that came bundled with QTR. Carbon-6 is the same inkset but mixed at home. My paper is Premier Art Smooth, in the 205 g/sq meter weight.

I tried making my own curve as explained in the QTR manual.. my first attempt, so it's probably not the best. But I still got the solarization.

Any suggestions would be most welcome... I may need to elaborate more on my setup.


Re: [QuadtoneRIP] solarized print

2014-02-11 by <paulmwhiting@...>

Thanks Pete,


I'll be awfully embarrassed if it's just an empty cart! My 1400 came with autoreset carts, a feature I consider a nuisance. Luckily I got a set of manual resettable carts from InkJet Mall (Jon Cone's website) and a resetter. He apparently has the chips custom made so you don't have to be limited to the auto reset feature. That's the set of carts that I'm using now.


I'll check them later this am, I know that some of them are low, perhaps even empty, and report back.


Thanks again,


Paul

Re: [QuadtoneRIP] solarized print

2014-02-11 by Jacques Caron

Hi

I'm still a new user (on a 1430, with the same inks set-up) but I had the same problem. The empty cartridge, like Mr.Bergstrom said, is the first thing to check. Then, if you reset the chips and still get the 'solarized"effect, you should try a different curve. For my part, I followed Mr.Roark tips (cross-over problems) and I used the "Eb6-EpsHpn-T" curve. This curve is set up in a "toner" channel (Mr.Roark definition) and you get a bit more overlap. I print with Epson Natural Hot Press and also Cold Press.

Still tweaking the curve, but now my results are much better without any solarization.

Hope this helps

Jeecee
Le 2014-02-11 à 07:51, paulmwhiting@...m a écrit :



Hello,

I posted this question over in the b/w group, but perhaps someone here might shed another light on my problem. I'm using an Epson 1400 with the Carbon-6 inkset developed by Paul Roark. I'm getting some pronounced "solarization" in shadow areas. (I put that in quotes because strictly speaking solarization is a darkroom phenomenon.) I'm using the curve for Eboni-6 which is the MIS mix that came bundled with QTR. Carbon-6 is the same inkset but mixed at home. My paper is Premier Art Smooth, in the 205 g/sq meter weight.

I tried making my own curve as explained in the QTR manual.. my first attempt, so it's probably not the best. But I still got the solarization.

Any suggestions would be most welcome... I may need to elaborate more on my setup.


Jacques Caron

RE: solarized print

2014-02-11 by <paulmwhiting@...>

A big thanks to both of you... I checked my carts, turns out they were all about 3/4 full... but as long as I had them out I topped them off and did a manual reset for all of them. Unfortunately that did not do the trick.


I tried making my own curve but being that was my first attempt I ended up with something worse! I'll have to try again.


Thanks again,


Paul

Re: solarized print

2015-02-18 by brittainjb@...

Hey guys,

I believe im having this same issue and I have three or four papers profiled in QTR.

It mainly appears in the darker tones. 

I've tried different curves and different paper but it seems to be image oriented.

I have a 3880 and when I switch to the k3 inks it goes away. It does not appear in any other prints but one.

Jared

Re: [QuadtoneRIP] Re: solarized print

2015-02-18 by David Kachel

Wrong ink in one of the cartridges?


David Kachel

___________________

Artist-Photographer
Fine B&W Photographs

WEBSITE: www.davidkachel.com
BLOG: thetransparentphotographer.com
EMAIL: david@...

PO Box 173
Globe, AZ 85502
(432) 386-5787

From: "brittainjb@yahoo.com [QuadtoneRIP]" <QuadtoneRIP@yahoogroups.com>
Reply-To: <QuadtoneRIP@yahoogroups.com>
Date: Wednesday, February 18, 2015 at 12:56 PM
To: <QuadtoneRIP@yahoogroups.com>
Subject: [QuadtoneRIP] Re: solarized print

I have a 3880 and when I switch to the k3 inks it goes away. It does not appear in any other prints but one.

Re: solarized print

2015-02-18 by richard@...

Make sure the inks are loaded correctly—most if the time these problems are due to refilling with the wrong ink, and rarely is it a problem with the printer, but it could be something wrong with the profile.

You might want to print the ink separation page, and make sure each shade is in the right position. The Eboni-6 from darkest to lightest is K, C, M, LC, LM, Y. Piezography K6 is K, C, LC, M, LM, Y. MIS doesn't list what "shade" each ink is—only what color position it goes is. I mark the position and the shade on top and sides of the bottle and triple check before refilling—especially with the larger cartridges. Luckily those 1400/1430 carts only hold about 15ml of ink so if you did mix it up you aren't throwing too much away. The best bet might be to drain and refill and then see if you still have the problem.

Richard Boutwell

Re: [QuadtoneRIP] Re: solarized print

2015-02-19 by Paul Roark

Are you using Eboni version 1.1 now? Some time prior to MIS officially going to v.1.1, I think the "Eboni" was not being made to spec. I found the old profiles needed re-linearizing. The ones I marked "STS" are for v. 1.1. (I'll rebrand them when I have a chance.)

Paul
www.PaulRoark.com
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On Wed, Feb 18, 2015 at 12:54 PM, David Kachel david@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:

Wrong ink in one of the cartridges?


David Kachel

___________________

Artist-Photographer
Fine B&W Photographs


PO Box 173
Globe, AZ 85502

From: "brittainjb@... [QuadtoneRIP]" <QuadtoneRIP@yahoogroups.com>
Reply-To: <QuadtoneRIP@yahoogroups.com>
Date: Wednesday, February 18, 2015 at 12:56 PM
To: <QuadtoneRIP@yahoogroups.com>
Subject: [QuadtoneRIP] Re: solarized print

I have a 3880 and when I switch to the k3 inks it goes away. It does not appear in any other prints but one.


Re: [QuadtoneRIP] Re: solarized print

2015-02-19 by jared bush

David,

I have all the ink in the right position.

I'll print with no color management for the image and see how it prints as it does not affect other images of the same nature.
( long exposures of water)

Jared

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From: David Kachel david@... [QuadtoneRIP] ;;
To: ;
Subject: Re: [QuadtoneRIP] Re: solarized print
Sent: Wed, Feb 18, 2015 8:54:52 PM

Wrong ink in one of the cartridges?


David Kachel

___________________

Artist-Photographer
Fine B&W Photographs

WEBSITE: www.davidkachel.com
BLOG: thetransparentphotographer.com
EMAIL: david@...

PO Box 173
Globe, AZ 85502
(432) 386-5787

From: "brittainjb@... [QuadtoneRIP]" <QuadtoneRIP@yahoogroups.com>
Reply-To: <QuadtoneRIP@yahoogroups.com>
Date: Wednesday, February 18, 2015 at 12:56 PM
To: <QuadtoneRIP@yahoogroups.com>
Subject: [QuadtoneRIP] Re: solarized print

I have a 3880 and when I switch to the k3 inks it goes away. It does not appear in any other prints but one.

Re: [QuadtoneRIP] Re: solarized print

2015-02-19 by richard@...

About the confusion of what inks are being used: I bought the new STS matte black to compare a few weeks ago—yes, it is denser, and slightly warmer—I'm getting 1.72-1.75 on Hahnemuhle PhotoRag. However, It would be nice if MIS labeled the bottles to indicate the change. My printed invoice lists it correctly, but if I didn't mark the bottle before opening I would have no idea which bottle of matte black is was which. It makes it much more important to properly label your inks when you get them, and when you refill your cartridges. One thing that has made this nice for the 1430 are the easy fill keys and capsules from InkJetMall. they are so inexpensive that I have 4 r 5 sets loaded with different combinations of inks I am testing.

As the MIS-usage: There is also still some fuzziness on just of how many different formulations are actually out there—possibly three? Is there any way to know for sure?

Richard Boutwell

Re: [QuadtoneRIP] Re: solarized print

2015-02-19 by jared bush

I have all my inks in there proper space and I have not switched my eboni ink to there new version yet.

Also I built my own profiles and print with icc's made from them. Both are linear.

I printed a step wedge and everything is good.

This seems to be only one image. I printed with canson rag, museo PR, and breathing color. It appears on all of them. But not all images. Only this one.

I'm stumped. I've tried different dithering algorithms to no avail.

Printing with no color management just made the print less contrasty. But did not eliminate the issue.

I've emailed a picture to some so it can be viewed.


Re: solarized print

2015-02-20 by jared bush

The problem was the ink. Apparently the cross over points changed after I purchased new ink some time ago.

I'll do a new profile and re linearize the curve.

Thanks for the input

Jared

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