The Xaar 501 GS8 UR can be used as a replacement to Xaar 500/40 printheads (discontinued). An ICM (Interface connection module) enables X500/40 based printers to communicate with Xaar 501 printheads. The ICM requires a waveform loaded onto it by Xaar. In many cases, the ink system of the Xaar 500/40 based printer will also need some modification as Xaar 500 printheads has 4 ink feeds whereas Xaar 501 printheads have 1 ink feed). Our engineer team can help implementing these changes to migrate existing printers from 500/40 to 501 printheads. Specifications Active nozzles : 500 Print swathe width : 70,5mm Number of rows : 1 Nozzle density : 180 Npi Nozzle Guard : WFG Ink types : UV / Oil Drop volume : 8 40pl Number of grey level* : 6 Filter : No Heater : No TF Technology mode : None, Pulsed, High flow mode Typical firing frequency @ Max DPD*: 8khz Dimensions (WxDxH) : 104 x 17 x 100mm Jetting orientation : Downshooter and Skycraper (see picture) Inlet / Outlet connections : Hose barb 4mm