My workflow is to output a ProPhotoRGB Tiff from LR to QImage, and print on my Canon Pro 1000 using the paper manufacturer's ICC profile. Recently I've had some prints come out with a bad color cast that makes people's skin looking like they're suffering from serious sunburn, when in reality their skin is light brown.
My expensive Dell monitor is calibrated and profiled using an i1Display Pro so I'm confident there is nothing wrong with the image I'm seeing on screen.
I've noticed this problem only when printing color prints to Canon SG-201 Photo Paper Plus Semi-Gloss paper, which has been my go to paper recently. Black and white prints are great. Sadly I printed to 4 sheets of 22 inch paper before I realized what was going on. All the prints exhibit the color cast. Prints I'd printed earlier in the year to the same paper had been fine. QImage version is 2018.112.
From here on in, this is above my pay scale: I wondered if it was a QImage bug or a mistake I'd made, so I printed a small portion of one image straight from LR in the margin of one of the failed prints, and printed correctly (i.e. no cast). Then I printed another in-the-margin small portion using QImage, and lo and behold, it came out right too. No cast! Now I don't know what is going on. If I print another big print, will I waste more paper and find its reverted to the same problem as before? And just to be clear, yes I have set LR / QImage to manage the profile, not the printer
One variable in all this is that before doing the small portion in the margin test print, I needed to change several ink tanks, including the red and the pink. However I'm not sure what difference if any that could make considering how much ink the Pro 1000 keeps in its lines.
What do you suggest is my next step? I hate wasting the 22 inch paper. It's rather pricey, especially considering I'm printing for personal use.
Thanks for reading.