名词
中文翻译：打印机
同义词：
['printer', 'printer machine', 'printing device']
例句：
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1. The step printer is a small device that prints labels on paper.
步进式打印机是一种小型设备，可以在纸上打印标签。
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2. The printer's step motor controls the direction of the printhead.
打印机的步进电机控制打印头的方向。
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3. The printer's step motor is responsible for moving the printhead up and down.
打印机的步进电机负责移动打印头上下。