基于单片机的热敏打印机的设计和实现

Design and Implementation of Thermal Printer Based on Single-chip Microcomputer

文章介绍了一种由单片机控制的高速热敏打印机的设计方案,本系统由单片机(80C552)、RAM、ROM、热敏头数据加载和加热控制系统、热敏头过热保护系统、步进电机控制系统、串行接口、控制软件、热敏头等组成,文中给出了其控制原理及硬件电路、软件设计。本打印机的特点为:打印速度快、噪音小、字迹清晰。本热敏打印机系统使用的热敏打印头为LTP2342。

In this paper,a design of high speed therma l printer is briefly introduced.This thermal printer is composed of single-chi p microcomputer(80C552),RAM,ROM,data inputting and heating control and overheat protection of the thermal head,step motor control,serial port,contr ol software and so on.Control principle and electronic circuit,software design is offered.The characteristics of the thermal printer include the high printin g speed,the low noise and the good printing effect.The type of thermal head is LTP2342.