Hi
First, are you sure you need heaters? because these models prints so slow that the ink have enough time to dry before touching anything, only exception might be if you have a rollup on your machine, or laying ink in 2 or passes, then there might be a problem with the ink not being fully cured before touching the back of the roll. I have never had to put that much ink on anything that i have ever had that problem.
I have had 3 CJ 500 and 1 SC 500 now, all running with ECO-SOL MAX, and i never used or needed heaters, even with the older ECO-SOL ink aswell, but i never had a rollup either, so it would be nice to hear from guys who have these machines with the rollup, this i am interested in too.
hope it helps
Jakob