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引言本文是根据日本专利编写的,目的是介绍一种靠压电换能元件的作用,使印刷记录头内的喷射腔可挠曲的壁面发生挠曲,从而减小喷射腔的容积。这样,对其喷射腔内的墨水产生压力,并靠这个压力使喷射腔内一部分墨水通过该记录头的喷咀,射到记录介质(如纸)上。与此同时,它还将另一部分墨水经供墨管路送回储墨槽。当其喷射腔内的容积复元时,则会引起腔内的压力下降,因此使喷射管路和供墨管路间产生一个压力差,其结果,储墨槽中的墨水又重新流入喷射腔内,喷射腔又恢复到初始状态。这样一种印刷记录头的结构,就是本文要涉及的内容。
INTRODUCTION This document is based on the Japanese patent. The purpose of the present invention is to describe a piezoelectric device capable of flexing the deflectable wall of the ejection chamber in the printing head to reduce the volume of the ejection chamber. In this way, a pressure is exerted on the ink in the ejection cavity thereof, and by this pressure, a part of the ink in the ejection cavity passes through the nozzle of the recording head and strikes the recording medium (such as paper). In the meantime, it sends another portion of the ink back to the reservoir via the ink supply line. When the volume in the ejection chamber is restored, a pressure drop in the chamber is caused, thereby causing a pressure difference between the ejection line and the ink supply line. As a result, the ink in the ink tank again flows into the ejection chamber , The injection chamber is restored to its original state. Such a print head structure, is the content of this article.