Data Buffer: Receive: 45 bytes or 4 KB, selectable User defined: 12 KB Macro: 2 KB NV Graphics: 384 KB NV User: 1 KB Print Speed: Print Speed: Max. 350 mm/sec. Paper: Thickness: 0.048 mm to 0.08 mm Width x Diameter: 79.5 ± 0.5 mm × 83.0 / 57.5 ± 0.5 × 83.0 mm Overall Dimensions (D x W x H): Overall Dimensions (D x W x H): 195 x 145 x 148 mm Colour: Colour: Black (EBCK) EMI Standards: EMI Standards: FCC Class A, ICES-003 Class A Printing Method: Printing Method: Thermal line printing Dot Density: Dot Density: 180 × 180 dpi* Mass: Mass: Approx. 1.6 kg Interface: Interface: Built-in USB (3 * Type A for OT-WL02, DM-D30 / DM-D110 or other POS Peripherals) + Built-in USB (Type B) + Built-in Ethernet + Serial (POS Peripheral) + USB Charging Port (0.5A-2.1A) Reliability: MTBF: 350,000 hours MCBF: 70 million lines Printer Mechanism Life: 20 million lines Auto Cutter Life: 3 million cuts