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1.发明授权METHOD FOR DRIVING LIQUID DISCHARGE HEAD, LIQUID DISCHARGE HEAD, AND LIQUID DISCHARGE APPARATUS 有权一种用于控制液体喷射头，液体喷射头和液体分配器
公开(公告)号：EP2648918B1
公开(公告)日：2016-06-01
申请号：EP11846134.2
申请日：2011-11-18
CPC分类号： B41J2/05 , B41J2/0455 , B41J2/0458 , B41J2/14129 , B41J2002/14387
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2.发明公开METHOD FOR DRIVING LIQUID DISCHARGE HEAD, LIQUID DISCHARGE HEAD, AND LIQUID DISCHARGE APPARATUS 有权一种用于控制液体喷射头，液体喷射头和液体分配器
公开(公告)号：EP2648918A1
公开(公告)日：2013-10-16
申请号：EP11846134.2
申请日：2011-11-18
IPC分类号： B41J2/05
CPC分类号： B41J2/05 , B41J2/0455 , B41J2/0458 , B41J2/14129 , B41J2002/14387
摘要： A liquid discharge apparatus includes: a liquid discharge head which includes; a discharge port to discharge a liquid; and a substrate including: an energy generating element for generating thermal energy to discharge the liquid from the liquid discharge port; a pair of electrodes connected to the energy generating element for driving thereof; an insulating layer of an insulating material provided to cover the energy generating element; and a metal layer of a metal material provided corresponding to the energy generating element to cover the insulating layer; and a driver unit which sets a first potential of one of the pair of electrodes substantially equal to the potential of the liquid and a second potential of the other one of the pair of electrodes lower than the first potential to drive the energy generating element.
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