... -generation Crystal Micro Piezoelectric Spray Nozzle2InkColor of InkType of InkInk Supply Mode4X4,C,M,Y,KActivity, pH Value, Coating, Dispersity, Ink (Optional ... Device, Fully-automatic Ink-scrapping DevicePrinting InterfaceUSB2.0Temperature/HumidityTemperature: 18°C-29°C, Humidity:50%-80%Power SupplyRated Frequency: 50HZ, Rated Voltage ...