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Digital BW, The Print

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Re: [Digital BW] solarized print

2014-02-05 by Paul Roark

Paul,

Be sure that all the nozzles are firing -- that is, do a nozzle check.

Assuming that is fine, print a Calibration Mode print on the Premier Art 205 with the slider at 100. Then print a 21-step test strip with the profile K-0-40. That is in the profiles Zip file. You can then compare the densities of the individual inks on the Calibration Mode print, at their ink limits, to the K-0-40 test strip. I'm assuming you're using the "Eb6-PA-205" profile for this paper. The K ink limit on that profile is 40.

If you don't have a spectro, scan the Calibration mode print and the 21-step K-0-40 test strip at the same time. As long as the scan is not clipped, you can use the eyedropper in Photoshop to compare the dilute inks to the 21-step K-0-40. This comparison gives you the "Density" values that QTR needs. If the profile is not accurate for you setup, change it and save it under a different name.
In any case, you'll probably want re-linearize the profile. Print a 21-step test strip with the profile (with the Linearization tab values cleared). Measure it with a spectro or using the QTR Step Wedge tool with a scanner, and put the Lab L values into the QTR boxes.

Good luck,

Paul


On Wed, Feb 5, 2014 at 11:09 AM, <paulmwhiting@...> wrote:

Hope I'm not wearing out my welcome!

Finally got my carts to be recognized in my refurbed 1400. Am using Premier Art Smooth FineArt paper. Am presently using InkJet Mall carts because their auto-reset chips have been programmed to be resettable at the user's discretion.

Am getting rather pronounced solarization in my shadows. It's a color file that's been converted to B/W using channels in PS Elements 9.

Paul Roark has contributed his profiles to QTR - but the profile for this paper was Black Only so he sent me one that uses all six positions. I noted there were two curves, but Curve 3 was whited out. Anyway, I tried a print with just Curve 1 and then Curve 1 and 2, same result. So should I tweak those curves in some way to get rid of the solarization? I might need some tips on how to do that, however.

Or is there something awry in my B/W conversion?

Paul W.


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