一种共享打印机多路选择器的设计

摘要

Deficiency exists whenmany computers share one printer, a new printer-sharing multiplexer therefore is designed in this paper. By program it can control and change the connection between the printer input line and the parallel output ports of a computer. It has such advantages as priority to the choice of printer, simple designing, and lower costs.%针对多台计算机公用一台打印机时存在的不足，设计了一种共享打印机多路选择器，它能程控切换打印机接口线与各计算机并口输出线间的连接，具有优先选择打印、设计简便、成本低等优点.