1.Spetra Polaris 512 print head. 2.0-4 level grayscale,360dpi,400dpi,600dpi,800dpi. 3.Good exquisite and richful gradation image. 4.Speed up to 48m/min, covering from wall tiles to floor tiles. 5.Automatic print head maintenance, automatic machine cleaning, automatic recycle system for waste ink, system for avoiding ink flying in inner side 6.Random printing for various images, non-stop for uploading pictures 7.Chinese/English Linux system, anti-virus and information anti-leakage. Remote uploading and monitoring to ensure the security of information. 8.Recycling ,stirring, heating function and alarm of ink lack in ink supply system 9.Touch-screen with keyboard and mouse to ease operation on system