A very economical printer to run, the LQ-350 helps save money with its high ribbon yield of 2.5 million characters and its low power consumption. Using just 1.3W in sleep mode and 23W when powered on, the LQ-350 is qualified by ENERGY STAR for its excellent energy efficiency. Easy to integrate, the LQ-350 has Parallel, Serial and USB interfaces as standard, and will fit neatly onto desks thanks to its compact design and cable management system. Product Features : High reliability : MTBF of 10,000 operating hours Power efficient : 1.3 W on standby, 22 W powered on Economical : Ribbon yield of 2.5 m characters Easy integration : Parallel, serial and USB interfaces Compact design : Fits neatly onto desks Specifications : Printing Method : Impact dot matrix Number of Pins : 24 pins Number of columns : 80 columns Printing Speed Draft : 10 cpi: 260 chars/s, LQ: 10 cpi: 86 chars/s, High-speed-Draft: 10 cpi: 347 chars/s Carbon Copies 3 plus one original Printing Resolution : 360 x 180 DPI Interfaces Bidirectional Parallel : RS-232, USB 2.0 Type B Document Feed Single sheet rear, Continuous paper rear, Paper output rear Paper Formats : Sheet Paper (single- and multi-layer), Continuous Paper (single- and multi-layer), Labels (single- and multi-layer), Roll Paper, Envelopes Energy Use 22 Watt Supply Voltage AC 200 V - 240 V Energy Star Yes Product dimensions 348? x 275 x 154 mm (Width x Depth x Height) Product weight 4.1 kg Temperature Operation 5ø C - 35ø C Humidity Operation 10% - 80% Compatible Operating Systems Windows 2000, Windows 7, Windows 8, Windows Vista, Windows XP Included Software Epson Status Monitor Mean Time Between Failures 10,000 Hours Print Head Life 400 Million Strokes/Wire Sound Pressure Operation: 53 dB (A) Memory 128 kB Included Ribbon Yield 3000000 characters Black Draft, 2500000 characters Black LQ