普通的打印机使用墨盒或者硒鼓，制造成本高不说还对环境有着相当大的影响，此外打出来的文档无法重复利用。
既然要重复利用，{zh0}用的“墨水”材质就是小学生和画家用的铅笔了，这种概念打印机由, & 设计，不需要多介绍，大家看看草图就明白了。
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