... 3) Memory: 2MB Flash ROM, 2MB DRAM Our barcode printer have several sensors: label distance sensor, label width sensor, ... ribbon end sensor etc. The printer head can find the right label position automatically, you ... 2MB DRAMSensorLabel Distance, Ribbon End, Label WidthCommunication InterfaceUSB, Serial PortParallel Port, Serial PortLinear Bar CodeCode 39, Code 39C, Code 128UCC, ...