... technologyIt adopts printheads with 1440 dpi, every head has 540 nozzles, 4 heads are even collocated side by side, so there ... are total 2160 nozzles. Double 4 color model, it can realize printing area of ... . (Unique)This technology can solve the printing problems caused by nozzles clogging.Support USB 2.0 port and standard ripHigh processing ...