... printingØ Stand-by and auto turn-off mode for lower power consumptionØ In field programming – Update Firmware, Download Fonts and Logos ... end sensor, Cover open sensorInterfaceRS-232C, USB, IrDA, Bluetooth, WIFI(reserved)Power AdaptorDC12V/1ABattery DC7.4V,1.5A rechargeable Li-ion batteryBattery ...