550 cps Black 55 dB Buffer size: 128 KB Standard interfaces: Ethernet, USB 2.0 Print head: 24-pin Mean time between failures (MTBF): 25000 h The LQ-590IIN is a high-volume dot matrix printer designed for fast and reliable printing. Upgrade your existing dot matrix printers to our latest model, which is now Energy Star compliant, and delivers built-in network capability with an incredibly low TCO.Fast print speedThe LQ-590IIN offers an improved USD (ultra speed draft) speed of 550 characters per second at 10 characters per inch, making a real difference to high-volume print runs such as stock reports and large batches of invoices or freight documents.Increased reliabilityEpson's dot matrix technology is already mature and very reliable. Building on this, the new printer improves the mean time between failure by 25% to 25,000 power-on hours, ideal for challenging conditions or where regular maintenance is not practical.Same consumablesThis printer uses the same ribbons as existing models