@Larry - my previous response stands. As we've discussed at length separately, you have two choices - to convert to an ICC or not. Walker is advocating converting to the ICC, and describing how you'd do that in Print Tool. In Windows, you'd have to do this in Photoshop or Qimage. The ABW mode button in Print Tool doesn't change anything - it just enables ABW, with the same options you see in Windows.
---In QuadtoneRIP@yahoogroups.com, <forums@...> wrote :
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