QTR-Quadtone RIP

Not sure if I can post a screen-shot to this.

However, included in this reply is a screenshot of QTR in ABW mode Application Managed with a Grayscale CreateICC profile applied (in perceptual mode).

Steps: 

1. Print a GG2.2 target file through ABW with “No Color Management" in DARK mode, everything else zeroed.
2. Read them in as desired with a spectro (I used an i1Pro or i1Pro2 and ColorPort)
3. Build a Grayscale Create ICC with the resulting Lab Cgats.
4. Install the grayscale profile.
5. Select the grayscale profile in perceptual mode with Epson ABW Mode checked.
6. Result is linear for any source space but I recommend sticking to the 2.2s (aka Adobe RGB or GrayGamma 2.2)

PrintTool lets you regain the lost ability to do a “perceptually linear” profile of ABW. (But why do it when QTR is a better driver in my opinion).

best,
Walker


> 
> I can't see anywhere else to specify a profile.  I have read that some time ago there use to be the option to specify a profile in the ABW driver, and an Adobe employee Aric Chan created some, but Epson in their infinite wisdom removed that option.  It's possible that Walker is recalling this former option, or it could be that he is suggesting converting to the ICC one way or another, which as we've discussed would be directly against the official InkJetMall approach.
>