发明名称 |
METHOD FOR DRIVING LIQUID EJECTOR |
摘要 |
A method for driving a liquid ejector (1) provided with a piezoelectric actuator (7) including a piezoelectric ceramic layer (6) having a size covering a plurality of pressurizing chambers (2). An arbitrary piezoelectric deformation region (8) of the liquid ejector (1) is deflected in one thickness direction and the opposite direction individually by applying a driving voltage waveform including a first voltage (-V L ) and an equivalent second voltage (+V L ) of the opposite polarity in order to vary the volume of the pressurizing chambers (2) of a corresponding liquid droplet ejecting portion (4), and a liquid droplet is ejected through a communicating nozzle (3). Since gradual creep deformation of the inactive region (16) of the piezoelectric ceramic layer (6) is prevented, the ink droplet ejection performance is maintained at a good level over a long period.
|
申请公布号 |
EP1902841(A1) |
申请公布日期 |
2008.03.26 |
申请号 |
EP20060780659 |
申请日期 |
2006.06.23 |
申请人 |
KYOCERA CORPORATION |
发明人 |
IWASHITA, SHUZO;ISHIKURA, SIN;YAMAMOTO, TAKAYUKI;SAKAI, HISAMITSU |
分类号 |
B41J2/045;B41J2/055;H01L41/083;H01L41/09;H01L41/187 |
主分类号 |
B41J2/045 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|