发明名称 |
HEAD DRIVE APPARATUS OF INKJET PRINTER AND INKJET PRINTER |
摘要 |
A head drive device of an inkjet printer having a nozzles and corresponding actuators that jet liquid drops. A drive section applies a drive signal to the actuators. The head drive device includes a drive waveform generating section that generates a drive waveform signal which is used as a reference of a signal to control drive of the actuators. A modulating section modulates a pulse of a drive waveform signal generated by the drive waveform generating section. A digital power amplifier amplifies power of a modulated signal subjected to the pulse modulation. A low pass filter smoothes a power-amplified modulated signal subjected to the power amplification by the digital power amplifier and supplies the signal as a drive signal to the actuators. A frequency characteristics adjusting section adjusts frequency characteristics of the low pass filter as a function of the number of the actuators.
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申请公布号 |
US2010220133(A1) |
申请公布日期 |
2010.09.02 |
申请号 |
US20070161201 |
申请日期 |
2007.01.17 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
OSHIMA ATSUSHI;TABATA KUNIO;SHINKAWA OSAMU;SUZUKI TOSHIYUKI;HATANO TOMOKI |
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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地址 |
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