Specification : Model Number : Xaar XJ128/ 360 40pl ( Xaar 128/ 40) Color of insulator: Light grey Active nozzles: 128 Print swathe width: 17.4mm Nozzle pitch: 137.3um Nozzle density: 185npi Drop velocity: 6m/ s Printhead weight ( dry) : 15.5g Dimensions ( W* D* H) : 37.2* 40.8* 11.3mm Drop volume: 40pl Typical firing frequency: 8.3kHz