John,
You say,
> I'd especially like the option of ink reduction (and increase) controls for custom papers.
I don't recall a setting like this on the plain-Jane z3100. Am I missing something?
-s
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I don't have this option on my z3100ps model. But an HP Tech Newsletter pdf dated June 1 indicates that if you are using firmware version 5.0.0.4 one can choose and install custom media presets that have more or less ink limits. But this version is not available yet for the z3100ps GP (I think the most current ps version is 4.0.0.6). I think the ink limit is hard set in the media presets, but it is better than nothing. I think a slider like in Epson software, for Color Density, would be useful.
But right now I have a software problem even making a custom paper preset from the Premium ID HP papers as they are not listed in my Color Center - Manage Papers choices. These Premium papers all have higher ink limits than the three choices I have available. But many more are listed in the printer front panel. I did synchronize. It seems like a software bug. So tomorrow I'm looking for a solution or workaround, or it's back to the 9800 to print a job with Epson Premium Semimatte 250 (my favorite photo type paper), which I was dying to test on the new HP with gloss. I keep reading about red issues, and two of the clients files have totally extreme gamut clipping red clothing, but it's a poor test if I can't lay down maximum ink.
I've barely used the z3100ps yet; printed about 40 b &w prints today on a cheaper rag paper, but WOW, they were amazing. I looked at them with a 60x Peak scope, and the pigments were all black (the files were desaturated RGB). I never got that with my Epsons, even though they made great B&W prints, there was always (even using Advanced BW) lots of colored pigments when examined with the loop, which slightly concerned me about color and contrast shifts due to fading over time.
I did one very quick rgb to cymk conversion and sent it to the postscript rip, and it looked good. The file was totally within screen and printer gamut, and not a stress test for swop proofing, but at least it printed as expected.