[slangsc]

Some inks do react and coagulate when mixed. The result is a major clog in your print head. I don't exactly know which ones will react, though. I have mixed Max ink with Triangle MLD, and it was fine. I did it outside the printer as a test, but it didn't react. Most of the flushing involved in switching inks is primarily so you have a pure ink color, with no residual effect from the previous ink to alter your color slightly. But if you're not making your own profiles, that doesn't matter all that much anyway.