Resolution: X direction: 360DPI \240DPI\180DPI Y direction: 720DPI\540DPI\360DPI\180DPI Technology: Drop on demand Piezo Electric, the same as Xaar Nozzles amount: 510 nozzles Print head width: 7.18cm Print head height: 2 to 4mm above media adjustable Ink type: solvent ink structure: Steel Useful life: 4-5 times longer than that of common 128 print head, more than one and half a year