The head voltage of SEIKO/SPT1020-35PL, SPT510-35PL, SPT255-35PL and SPT255-12PL can be changed with the temperature changes, temperature requirements is lower than other heads. SEIKO head can print pictures with a variety of modes, the ink drop size is 35pl or 12pl, the highest standard resolution is 1440dpi, the texture of output images is delicate. Better compatibility with some inks, the print color with high PASS shows clear layer.