... : Thermal Transfer 2) Resolution ratio: 300dpi 3) Memory: 2MB Flash ROM, 2MB DRAM Our barcode printer have several sensors: label distance ... ~ 0.25mm (0.002" ~ 0.01")Max. Ribbon Length300m300mMemory2MB Flash ROM, 2MB DRAMSensorLabel Distance, Ribbon End, Label WidthCommunication InterfaceUSB, Serial PortParallel ...