Liquid jet apparatus and printing apparatus

Details Liquid jet apparatus and printing apparatus Liquid jet apparatus and printing apparatus

2011-07-05

2011-07-05

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S011000

Reexamination Certificate

active

07971948

ABSTRACT:
A liquid jet apparatus of the invention includes a drive waveform generator that generates a drive waveform signal, a modulator that pulse-modulates the drive waveform signal so as to produce a modulated signal, a digital power amplification circuit that amplifies the power of the modulated signal so as to produce an amplified digital signal, and a low pass filter that smoothes the amplified digital signal so as to produce a drive signal. The digital power amplification circuit includes multiple stages of digital power amplifiers each including a pair of switching elements that are push-pull-connected. The amplified digital signal is a multi-value signal that reaches a larger number of steps of electric potentials than the number of digital power amplifiers.

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