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US 10,625,512 B2Granted
Liquid discharge apparatus and control method of liquid discharge apparatus
AssigneeSeiko Epson Corporation
InventorsYukimasa Ishida, Hironori Matsuoka
Life of this patent
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Abstract
A liquid discharge apparatus including a liquid discharge head that discharges a liquid by vibrating a vibration plate by a drive element and changing a pressure in an internal space filled with the liquid, a pressurization supply unit that forcibly feeds the liquid into the liquid discharge head, and a controller that restricts drive of the drive element in accordance with a pressure condition in the liquid discharge head.
Claims19
A liquid discharge apparatus comprising:
- a liquid discharge head that discharges a liquid by vibrating a vibration plate by a drive element and changing a pressure in an internal space filled with the liquid;
- a pressurization supply unit that forcibly feeds the liquid into the liquid discharge head;
- and
- a controller that performs control of either of (A) or (B) below in accordance with detecting a pressure condition in the liquid discharge head from displacement of a flexible film constituting a part of a wall surface of a flow path of the liquid, the flexible wall being disposed within a damper chamber having an opening portion that communicates to atmospheric pressure,
- (A) restrict drive of the drive element in accordance with the pressure condition in the liquid discharge head, or
- (B) reduce a pressure of the liquid in accordance with the pressure condition in the liquid discharge head.
3 more elements
A liquid discharge apparatus comprising:
- a liquid discharge head that discharges a liquid by vibrating a vibration plate by a drive element and changing a pressure in an internal space filled with the liquid;
- a pressurization supply unit that forcibly feeds the liquid into the liquid discharge head;
- a receiving unit that receives print data;
- and
- a controller that performs control of either of (C) or (D) below based upon detecting the pressure in the internal space,
- (C) reduce a pressure of the liquid when receiving the print data, or
- (D) control a supply pressure of the liquid in accordance with content of the received print data.
4 more elements
A control method of a liquid discharge apparatus, wherein
- the liquid discharge apparatus includes
- a liquid discharge head that discharges a liquid by vibrating a vibration plate by a drive element and changing a pressure in an internal space filled with the liquid, and
- a pressurization supply unit that forcibly feeds the liquid into the liquid discharge head, and
- the control method controls drive of the drive element in accordance with a change of a pressure condition in the liquid discharge head, the change of the pressure condition being detected from displacement of a flexible film constituting a part of a wall surface of a flow path of the liquid, the flexible wall being disposed within a damper chamber having an opening portion that communicates to atmospheric pressure.
1 more element
A control method of a liquid discharge apparatus, wherein
- the liquid discharge apparatus includes
- a liquid discharge head that discharges a liquid by vibrating a vibration plate by a drive element and changing a pressure in an internal space filled with the liquid, and
- a pressurization supply unit that forcibly feeds the liquid into the liquid discharge head, and
- the control method performs control to reduce a pressure of the liquid in accordance with a pressure condition in the liquid discharge head, the pressure condition being detected from displacement of a flexible film constituting a part of a wall surface of a flow path of the liquid, the flexible wall being disposed within a damper chamber having an opening portion that communicates to atmospheric pressure.
1 more element
Dependencies are inferred from the claim text.