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在计算机应用中,打印机是一种常用的输出设备,也是一种耗资较大的设备。目前市场上的针式打印机一台约需5000元左右(如LQ1600K打印机),其价格超过了一台386微机价格的一半。因此在一般单位,打印机的数量往往少于微机的数量。由此造成多台微机共用一台打印机,十分不便。有时只能搬动打印机或插拔打印电缆,时间一长容易造成接插件损坏,严重的还会烧坏机器(带
In computer applications, the printer is a commonly used output device, but also a more expensive device. Currently on the market of a needle printer about 5,000 yuan (such as LQ1600K printer), the price of more than half the price of a 386 computer. Therefore, in general units, the number of printers is often less than the number of computers. This resulted in more than one computer sharing a printer, very inconvenient. Sometimes only move the printer or plug the print cable, over time easy to cause damage to the connector, the serious will burn the machine (with