Of course the most important is the print head, and most of the UV flatbed printer manufacturers use Japan's Epson , Ricoh print head, so as long as the print head the manufacturers use are formally authorized by the original head manufacturer ,there is not difference.
But we do not think that as long as the print head is the same, there will be no difference of the printer.In fact there are other parts that is very important, for example: screw rail for transmission components (related to the print registration accuracy) ink supply system device (related to whether there will be disconnection of ink) curing system curing(LED light cured refer to product adhesion) and ink filtration system (ink impurities will affect the life of print head) and so on are all the important parts , which will influence the products on the printing effect, stability, adhesion and so on.Generally the difference of different manufacturers is whether the parts are imported and the quality and so on.