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本文介绍了主机对IEEE1284接口外设的判定及其中文传输模式请求的实现过程，给出了满足IEEE1284接口电气特性的接口设计方案，和打印机IEEE1284接口的具体实现方法。
This article describes the host of the IEEE1284 interface to determine the external and Chinese transfer mode request to achieve the process is given to meet the IEEE1284 interface electrical characteristics of the interface design and printer IEEE1284 interface to achieve the specific method.