Liquid ejecting apparatus and maintenance method of liquid ejecting apparatus
AssigneeSeiko Epson Corporation
InventorsShinya Komatsu, Hitotoshi Kimura
Life of this patent
Estimating the term…
Abstract
A liquid ejecting apparatus including a liquid ejecting portion that ejects a liquid in a pressure chamber from a nozzle that communicates with the pressure chamber, a liquid supply flow path that supplies the liquid stored in a liquid storing portion to the liquid ejecting portion, a degas module provided in the liquid supply flow path, a vacuum degree adjustment mechanism configured to adjust a vacuum degree of the degas module, a state detecting mechanism configured to detect a state inside the pressure chamber, and a control portion that drives and controls the vacuum degree adjustment mechanism based on a detecting result of the state detecting mechanism.
Claims10
A liquid ejecting apparatus comprising:
- a liquid ejecting portion that ejects a liquid in a pressure chamber from a nozzle that communicates with the pressure chamber;
- a liquid supply flow path that supplies the liquid stored in a liquid storing portion to the liquid ejecting portion;
- a degas module provided in the liquid supply flow path;
- a vacuum degree adjustment mechanism configured to adjust a vacuum degree of the degas module;
- a state detecting mechanism configured to detect a state inside the pressure chamber;
- and
- a control portion that drives and controls the vacuum degree adjustment mechanism based on a detecting result of the state detecting mechanism,
- wherein the control portion performs a first operation that drives the vacuum degree adjustment mechanism to increase the vacuum degree of the degas module from a reference vacuum degree to a first vacuum degree that is higher than the reference vacuum degree when generation of air bubbles and growth of air bubbles are estimated from the detecting result of the state detecting mechanism, the estimation based on a comparing a volume of air bubbles to a reference volume.
A maintenance method of a liquid ejecting apparatus including a liquid ejecting portion that ejects a liquid in a pressure chamber from a nozzle that communicates with the pressure chamber,
- a liquid supply flow path that supplies the liquid stored in a liquid storing portion to the liquid ejecting portion,
- a degas module provided in the liquid supply flow path,
- a vacuum degree adjustment mechanism configured to adjust a vacuum degree of the degas module, and
- a state detecting mechanism configured to detect a state inside the pressure chamber,
- the maintenance method comprising:
- driving the vacuum degree adjustment mechanism based on a detecting result of the state detecting mechanism;
- and
- performing a first operation that drives the vacuum degree adjustment mechanism to increase the vacuum degree of the degas module from a reference vacuum degree to a first vacuum degree that is higher than the reference vacuum degree when generation of air bubbles and growth of air bubbles are estimated from the detecting result of the state detecting mechanism, the estimation based on a comparing a volume of air bubbles to a reference volume.
Dependencies are inferred from the claim text.