Here I want to write down some ideas for the printer software.

I think besides CMYK printing it should have a mode for assigning a color to a printhead. E.g. if you have a svg graphic with areas in RGB Colors, black areas are assigned to printhead 0, pure red areas are assigned to printhead 1, pure green areas are assigned to printhead 2 and blue areas are assigned to printhead 3.

It should also have an option to print black and white with all four printheads for faster printing like I planned before for the 10 nozzle printhead instead of CMYK. 

More ideas will follow.