基于增强型单片机的针式微型打印机

Micro Dot Printer base on strong MCU

本文在分析微型打印机机芯M150II结构的基础上,详细介绍了针点式微型打印机的驱动原理,提出了一种以增强型单片机STC12C5412AD为核心的微型打印机设计方案。本文在打印同步信号检测、字库芯片的选用、不同电平信号器件的混合接口、通讯接口、系统EMC性能等方面较现有针点式微型打印机系统有所创新和改进。这种基于增强型单片机的微型打印机系统设计,不仅具有良好的打印速度和打印效果,还大大地简化了硬件电路,节约了成本,为用户提供了一种低成本、高可靠性的产品。

Base on the analysis of the structure of M150Ⅱ, this paper introduced the drive principle of the Micro Dot Printer and put forward a plan about how to design a Micro Dot Printer with the strong MCU STC12C5412AD as the core. This article has great innovation and the improvement relative to existing Micro Dot Printer in the printing synchronized signal detection, in the selection of flash chip, in the mix connection of different signal level, in communication interface and in EMC performance of system, etc. This kind of printer system based on strong MCU not only has quicker printing speed and better printing effect but also simplifies the hardware circuit and reduces the cost greatly. The paper provides a kind of low cost and the redundant reliable product for consumer.