I have been looking into the Arizona's for a couple of months now. What I have learned is, the max resolution is 390 true dpi, the newer true solvents are now getting closer to 700. Their is six color, three piezo heads per color for a total of 18 heads, and the cost around $900.00 each to replace. The heads need to be cleaned every evening, and re-primed every morning, or the heads will get clogged. At $900.00 per head, 18 heads, thats over $16,000.00.