So you are using working spaces for such conversions, not a paper (output profile)?
This is just something that I've read online which gave me the idea of what I might have done wrong.
At the beginning, my file's working space was in Adobe RGB and my profile which is generated in i1P with the D50 setting under the Lighting section.
And I am using Qimage to make the print.
When I use Qimage to soft proof and do the actual print, the image came out very cold compare to the original artwork ( and I know the file is good without that much problem)
So then I took Yann's suggestion, covert the file working space from Adobe RGB to ProPhoto RGB.
And suddenly it works perfectly.
So, I assuming the problem was about the white point of my file working space.
But one of my confusion is:
When I first got the problem of the cold look, and I use the same ICC file and do the soft proof in Photoshop,
the soft proof looks fine.
Is that mean Qimage takes absolute colormetric differently than Photoshop?