A liquid jet apparatus includes a plurality of nozzles provided to the liquid jet head, an actuator provided corresponding to each of the nozzles, drive unit that applies a drive signal to the actuator, drive waveform signal generation unit that generates a drive waveform signal providing a reference of a signal for controlling the actuator, modulator unit that pulse-modulates the drive waveform signal generated by the drive waveform signal generation unit, a digital power amplifier for power-amplifying the modulated signal, which is pulse-modulated by the modulator unit, and a low-pass filter provided individually corresponding to the actuator and for supplying the actuator with the power amplified modulated signal power-amplified by the digital power amplifier as a drive signal after smoothing.

Claims

4 · 2 independent · depth 2

4 granted claims

›1.independentA liquid jet apparatus comprising:na plurality of nozzles provided to the liquid jet head;a plurality of actuators provided so as to correspond to eac…+1

›3.independentA printing apparatus comprising:na plurality of nozzles provided to the liquid jet head;an plurality of actuators provided so as to correspond to each…+1

Classifications

4 codes

IPC · International Patent Classification

Section B — Performing operations; transporting

B41J29/38

USPC · US Patent Classification

347/9347/10347/5

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Pendency

4.5 y

1,650 days filing → grant

Office actions

non-final + final

Responses

3 RCE

Examiner

Laura Martin

art unit 2853 · TC 2800

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Citations: 131 back · 0 forward

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Priority chain

1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20080018683 A1	24 Jan 2008

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