Paul,
I do have two versions of K-0-40 one with and one without the Black Boost... both show Dmax for several steps on the black end of the step file. As for creating a new profile, at this point that's over my head. I'm really sorry Paul, but I need a better understanding of BlackPrinting 101. When I had the R1800 it was within my grasp but now I'm in deep water.
I've been studying the User Guide by Tom Moore and also the Quadtone Rip by Diallo.
In the meantime, I have a question about the profile you sent me a while back. I had expressed some concern that the .qidf for PA 205 used only one cart firing, the rest remaining idle. My concern was that idle carts in the R1800 is what led to clogs. So you sent me a new profile which including firing the five remaining carts, it was called Eb6-PA-205.qidf. But when I printed with that profile I got a rather pronounced Sabbattier, or solarization effect on a file I've never had trouble with, even with the R1800.
I'm not expecting an answer on New Year's Eve.... take a break!
Happy New Year,
Paul
Paul
---In DigitalBlackandWhiteThePrint@yahoogroups.com, <roark.paul@...> wrote:
On Mon, Dec 30, 2013 at 1:16 PM, <paulmwhiting@...> wrote:
Been a while, I hope we can reconstruct the conversation here! Here's an extract from your last message to me, #35.
Paul W: I looked at a 21 step scale in a test print the next to last frame was indistinguishable from the very last frame (black). However there was clear delineation of all the steps at the lighter end, which speak for good highlight detail.Paul R: You may need to check the dmax point -- K ink limit. You might notice that I have a curve in the Zip file (if not in QTR) called "K-0-100." This is a straight line curve that will test for the K ink limit with a 21-step test file without the need to waste an entire sheet of paper (as when Calibration mode is used just to see the K results). "If you're lucky the profile may have used a boost." If so, try putting in the new dmax there and re-saving the file. It might print well with no other changed needed.
Actually, what was in the zip file was K-0-40. I created the quad curve and printed the 21-step test file but its last several dark steps were all black. Then I created a quad file for K-0-100 and it was worse. So I went the other direction and created a K-0-20 quad file and this was better. So now do I back back to my 6 position file you created for me (PA 205) and lessen the black density? I think I know how to do that.
Also, in the quote above, I wonder if you would elaborate on the sentence I have in quotes there... thanks!
Best regards,
Paul