I scan my printer target with an epson v550 and histograms are good. When I create a profile and apply it in qimage (v2018.125,) I get a print with a yellow green hue.
I'm sorry. I cannot discern if you are creating a printer profile, or a scanner profile.
If a printer profile, you must set the driver to color management off, correct paper selected and anything else the paper manufacturer recommends.
Place 2 targets on the scanner glass. The IT-8 and the target that is in TIF form that you printed on the paper that you are profiling, for profile making.
Fred