发明授权
US07651203B2 Inkjet recording device, ejecting device provided therein, and method of calibrating ejection characteristic for droplet 有权
喷墨记录装置,其中提供的喷射装置和校准液滴的喷射特性的方法

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
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