I had a meeting with the regional sales guy at Mimaki the other day and he said the person on Signs101 who was having issues with the white was having the issue on a very specific brand of material. They eventually figured it out but it wasn't a common issue across machines. We have our demo unit coming in soon and will get to play around with it. Overall it looks like a solid machine. It uses the same exact heads as the JFX200 which is a very successful Mimaki UV Flatbed printer.