Print Method Direct thermal line printing Resolution 203 DPI x 203 DPI Print width 80mm (Max.) Print speed Standard : 310 mm/sec Max. Gray scale print speed 150mm/s (Max.) Two color print speed 120mm/s (Max.) Memory RAM: 2MB, Flash : 2MB Upgradable to 4MB/8M Sensors Paper near end sensor, Paper end sensor, TPH position, TPH over heating protection, Print Voltage, Black mark sensor Driver Windows driver : Win2000 (32bit), Server2003/2008(32&64bit), XP (32&64bit), VISTA (32&64bit), Win7 (32&64bit); Linux CUPS, MAC Interface USB2.0 (on-board) + optional interface (daughter boards): Serial (RS-232/485/422), Parallel (IEEE1284), Ethernet, WLAN (Wi-Fi), Bluetooth Reserved : Customer display interface and Audio Interface Cash drawer control 1-2 cash drawers