As Much as I hold you in esteem as a friend and excellent photographer.... you are using inks that do not qualify you for blaming anything else in your system for green casts,
Your printer coupled with Epson paper, and the correct matching printer profile produce spot on color prints.
If you choose to use 3rd party inks, then you need to have someone make a profile for *that* ink matched to the various papers you use.
You can make the profiles yourself using Profile Prism or other applications designed for individuals to generate home printer profiles, or you can use an on line source for the profiles.
Cathy's Profiles is one that comes to mind.

Enjoy your trip and come back with more good shots.
Fred

You only get "wrong" colours using Qimage if the colour management and or the driver settings are wrong, or there is a mechanical problem with the printer (blocked nozzles)
Looks like it is time to take up Fred's offer in Reply #11 and e-mail the image to  him. He has an R1800 too.
Terry