FWIW, Dave Polaschek stated: "Picking "Printer Manages Colors" on Windows guarantees that your color data will be converted to sRGB."
I wonder about that. The Windows PS-3 driver of the HP Z3200-PS in printer CM mode has a selection menu that gives you a choice between sRGB, AdobeRGB, Colormatch and AppleRGB for RGB images and some CMYK spaces for CMYK files. The PCL-3 driver only sRGB and AdobeRGB. I do not think the driver will convert to any of these spaces first but has different LUTs to deal with images with the assigned spaces. The user then has to correlate the color space choice with the image assigned color space I think. Otherwise I do not understand the menu either, a proper driver recognition of the color space in the file could have been implanted and have things doen automatically. Anyway if only sRGB would get through the above choices become even weirder as that either corrupts the CM right away or the data gets two conversions on the way and a small space in between. I think HP avoids a color engine implant the way they designed the menu choices and Windows does not convert to sRGB on the fly.
Qimage Ultimate (that can not work with CMYK files and is Windows only) has three choices on color management:
* OFF - and QU will not do any CM but also strip the color space from the data it sends through to the driver. Good for target printing.
* Printer will do CM - and QU will not do any CM but keep the color space assigned to the data it sends to the driver.
* Qimage Ultimate CM on - and QU will do the CM and expect the driver setting to be on "Let application do CM" and expects the OS does not interfere either, Windows respects that approach as we know.
In the two first choices I see a conflict if the data gets sRGB assigned or is converted to sRGB by Windows. I have no reason to think it works like that.
There could be (desktop model) drivers with no other expectation than sRGB assigned or no space assigned files thrown at them and their driver CM based on that assumption. Not a Windows limitation but a simple driver CM.
Met vriendelijke groet, Ernst
http://www.pigment-print.com/spectralplots/spectrumviz_1.htmDecember 2014 update, 700+ inkjet media white spectral plots