发明授权
US5781203A Ink ejecting device for use in an ink jet printing apparatus 失效
用于喷墨打印设备的喷墨装置

Ink ejecting device for use in an ink jet printing apparatus
摘要:
An ink ejecting device for use in an ink jet printing apparatus, includes: a number of ejecting elements arranged in a matrix having a first number of columns and a second number of rows, each ejecting element having: an ink chamber whose volume is changeable, an ejection nozzle communicating with the ink chamber, and an ink supply hole communicating with the ink chamber, and an piezoelectric conversion element, a drive portion for driving piezoelectric conversion elements of each column in a manner for expanding the ink chamber to allow ink to flow into the ink chamber and contracting the ink chamber to eject ink from the ink chamber through the ejection nozzle.
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