The feeding system of copier is part of the systems of paper road, which mainly achieves the action of pickuping paper by DC and the paper's feeding by stepper motor.
供纸系统是复印机纸路系统的一部分，主要完成复印机搓纸动作和输纸过程，直流电动机用来完成搓纸动作，而输纸过程由步进电动机完成。
Based on the embedded system of ARM, the design scheme of DC motor and stepper motors driving circuits is proposed.
基于ARM嵌入式控制器，提出了供纸系统中直流电动机和步进电动机驱动电路设计方案。
From the development trend of speaking, the stepper motor has been with DC motor, induction motor, and the parallel synchronous motor, making it one of the basic types of motors.
从发展趋向来讲、步进电动机已经能与直流电动机、异步电动机，以及同步电动机并列，从而成为电动机的一种基本类型。
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