... portEthernet port (10/100MB)RS232 port Electronic & Software Features32 digit embedded LINUX operating systemDual core CPU, ... to enter printing menu instantlyAutomatic error diagnosisUSB/Internet software automatic upgradingReal time and date with calendarHigh Speed ... date, Julian date, Time, Shift, Incremental numbering, Database printing (optional)Vertical 48 dots maximumCharacter height 1mm~15mm6 ...