Product Specifications Dimensions: 89 x 25 x 69 mm (excluding cables) Head materials: SST, Nickel alloy and Epoxy Adhesive Nozzle plate surface: Coated SST Number of nozzles: 4 x 320 nozzles Nozzle spacing: 0.1693 mm Nozzle density: up to 600 npi Temperature control: Integrated Heater and Thermistor Operator temperature range: 60 C Drop volume: Binary mode : 5pl / Grey-scale mode : 5-15pl Jetting frequency: 50kHz (3 levels); 40kHz (4 levels) Ink compatibility: UV Inks