I have been working on my Mutoh 1324X and have replaced the printhead, dampers, cables, maintenance station and fuses(3 tiny ones) however for the nozzle check it still is not printing anything, it acts like it is printing however nothing. Could it be the CR board or the Main board? Which do I try first? or is there something else I should replace first? Oh and yes there is ink flowing through the head and into the waste tank so that is all working.