放置在A4纸张之上的喷墨打印机，这个款打印机暂时只是一个概念化的设计，他的原理是这样的，把打印机放在A4纸张堆上面，打印时，纸张会自动放到打印机里面去，避免了重复更换纸张的免费，对于需要大量打印文件的用户很有帮助。

A compact inkjet printer placed on the top of a paper pile which will swallow papers beneath it automatically and let out the printed one on top when printing, is absolutely a space and time saving instrument for your daily work.

【Printer Placed on A4 Paper Stack】