公开(公告)号：EP0083877B1

公开(公告)日：1987-07-08

申请号：EP82307017.2

申请日：1982-12-31

申请人： DATAPRODUCTS CORPORATION

发明人： De Young, Thomas William ,  Miranda, Hector

IPC分类号： B41J3/04

CPC分类号： B41J2/14 ,  B41J2002/14387 ,  B41J2202/15

公开(公告)号：EP0083877A2

公开(公告)日：1983-07-20

申请号：EP82307017.2

申请日：1982-12-31

申请人： DATAPRODUCTS CORPORATION

发明人： De Young, Thomas William ,  Miranda, Hector

IPC分类号： B41J3/04

CPC分类号： B41J2/14 ,  B41J2002/14387 ,  B41J2202/15

摘要： An ink jet apparatus comprises a chamber (200) having a diaphragm (210) preloaded to a deformed position when the transducer (204) is in its de-energised state. Upon energisation, the diaphragm (210) returns to a substantially planar condition so as to permit filling of the chamber (200) from an inlet prior to firing a droplet from a chamber orifice (202) when the transducer (204) is de-energised and the diaphragm (210) again assumes it preloaded, deformed condition.