一、前言近年来,国内组装生产了一些不同型号的单板微型计算机,它们具有功能较强、使用灵活、价格低廉等特点。但是目前国内尚缺乏与之配接的打印机等外部设备。日本生产的 DPA4131型微型打印机,价格便宜,体积小巧,虽然可打印的字符种类较少,但已能满足一般需要。我们将 DBJ—Z80单板机(以 Z—80为中央处理器)与这种微型打印机相联接,使用效 I. Introduction In recent years, the domestic assembly and production of some different types of veneer microcomputer, they have a more powerful, flexible, low cost and so on. However, at present, there is no external device such as a printer which is matched with it. DPA4131-type micro-printer produced in Japan, cheap, small size, although less printable characters, but has been able to meet the general needs. We will DBJ-Z80 single-board machine (Z-80 as the central processor) and this micro-printer connected to the use of efficiency