发明名称 |
Inkjet recording device, ejecting device provided therein, and method of calibrating ejection characteristic for droplet |
摘要 |
A droplet ejecting device includes a nozzle unit, a piezoelectric member and a drive voltage generating unit. The piezoelectric member has a common electrode and a discrete electrode. A first differentiation by polarization voltage of a characteristic curve indicating change in a polarization of the piezoelectric member with respect to change in the polarization voltage has a plurality of extremal values including a first extremal value at a prescribed positive voltage Vbp that is the smallest polarization voltage among plus polarization voltages corresponding to the plurality of extremal values, and a second extremal value at a prescribed negative voltage Vbn that is the largest polarization voltage among minus polarization voltages corresponding to the plurality of extremal values. The drive voltage generating unit generates a drive voltage having a range between a first negative voltage Ve1 and a first positive voltage Ve2, and applies the drive voltage between the common electrode and the discrete electrode. Vbp, Vbn, Ve1, and Ve2 are set such that Vbn<Ve1<0 and 0<Ve2<Vbp.
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申请公布号 |
US7651203(B2) |
申请公布日期 |
2010.01.26 |
申请号 |
US20060610152 |
申请日期 |
2006.12.13 |
申请人 |
RICOH PRINTING SYSTEMS, LTD. |
发明人 |
YAMADA TAKAHIRO;KIDA HITOSHI;TOBITA SATORU;KUGAI KENICHI |
分类号 |
B41J2/045 |
主分类号 |
B41J2/045 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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