The Printer model name is LP72P703. The date of manufacture and counter are printed on water bottles that was packed vinyl wrap. *P703 Printhead Specifications.* Nozzle Pitch : 4.2mm ⅹ 16 nozzles ... Orifice Diameter : 140 micron Marking speed : 1,250 Drops/1sec Operating Conditions : DC18-24V, 300mA-700mA(Max.) Ink : MEK, Alcohol Based ink