Liquid discharge apparatus and method for driving the same
AssigneeToshiba Tec Kabushiki Kaisha
InventorNoboru Nitta
Life of this patent
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Abstract
A liquid discharge apparatus includes a nozzle plate and a drive controller. The nozzle plate includes an array of nozzles arranged in a first direction and a plurality of actuators corresponding to the nozzles, respectively. The array includes first, second, and third nozzles arranged in the first direction. The actuators include first, second, and third actuators corresponding to the first, second, and third nozzles, respectively. The drive controller is configured to apply a drive signal to the first, second, third actuators during a drive cycle. The drive signal is applied to the first actuator at a timing different from a timing at which the drive signal is applied to the third actuator by an odd number multiple of a half of an inherent vibration cycle of the liquid discharge apparatus.
Claims20
A liquid discharge apparatus, comprising:
- a nozzle plate including an array of nozzles arranged in a first direction and a plurality of actuators corresponding to the nozzles, respectively, the array including first, second, and third nozzles arranged in the first direction in this order with no nozzle therebetween, and the plurality of actuators including first, second, and third actuators corresponding to the first, second, and third nozzles, respectively;
- and
- a drive controller configured to apply a drive signal to the first, second, third actuators during a drive cycle, the drive signal being applied to the first actuator at a timing different from a timing at which the drive signal is applied to the third actuator by an odd number multiple of a half of an inherent vibration cycle of the liquid discharge apparatus,
- wherein a half wavelength of an inherent vibration of the liquid discharge apparatus along a surface direction of the nozzle plate when the plurality of actuators is driven is greater than an arrangement pitch of the plurality of actuators along the first direction.
A method for driving a liquid discharge apparatus including:
- a nozzle plate including an array of nozzles arranged in a first direction and a plurality of actuators corresponding to the nozzles, respectively, the array including first, second, and third nozzles arranged in the first direction in this order with no nozzle therebetween, and the plurality of actuators including first, second, and third actuators corresponding to the first, second, and third nozzles, respectively, the method comprising, during a drive cycle:
- applying a drive signal to the first actuator;
- applying the drive signal to the second actuator;
- and
- applying the drive signal to the third actuator, wherein
- the drive signal is applied to the first actuator at a timing different from a timing at which the drive signal is applied to the third actuator by an odd number multiple of a half of an inherent vibration cycle of the liquid discharge apparatus, and
- a half wavelength of an inherent vibration along a surface direction of the nozzle plate when the plurality of actuators is driven is greater than an arrangement pitch of the plurality of actuator along the first direction.
Dependencies are inferred from the claim text.