Liquid jet apparatus and printing apparatus
AssigneeSeiko Epson Corporation
InventorsKunio TABATA, Atsushi OSHIMA
Life of this patent
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Abstract
A liquid jet apparatus according to the present invention is a liquid jet apparatus including a plurality of nozzles, an actuator provided for each nozzle and connected to the respective nozzle, a drive waveform signal generation unit that generates a drive pulse, and a drive unit that applies the drive pulse to the actuator, wherein the drive unit includes a transistor pair, wherein the transistor pair: has two transistors connected to each other in a push-pull manner, and power-amplifies the drive pulse. The drive unit also includes a low-pass filter disposed between the transistor pair and the actuator.
Claims10
A liquid jet apparatus comprising:
- a plurality of nozzles;
- an actuator provided for each nozzle and connected to the respective nozzle;
- a drive waveform signal generation unit that generates a drive pulse for each actuator;
- and
- a drive unit for each actuator for applying the drive pulse to the respective actuator, wherein the drive unit includes:
- a transistor pair, wherein the transistor pair:
- has two transistors connected to each other in a push-pull manner;
- and
- power-amplifies the drive pulse;
- and
- a low-pass filter disposed between the transistor pair and the actuator.
A printing apparatus comprising:
- a plurality of nozzles for a liquid jet head;
- an actuator provided for each of nozzle and connected to the respective nozzle;
- a drive waveform signal generation unit that generates a drive pulse for each actuator;
- and
- a drive unit for each actuator that applies the drive pulse to the respective actuator, wherein the drive unit includes:
- a transistor pair, wherein the transistor pair:
- has two transistors connected to each other in a push-pull manner, and
- power-amplifies the drive pulse;
- and
- a low-pass filter disposed between the transistor pair and the actuator.
Dependencies are inferred from the claim text.