Patent Number: 7,581,808

Title: Liquid container

Abstract: The invention provides a liquid container having a container body that can be detachably attached to a liquid consumption apparatus, where the container body of the liquid container includes: a liquid containing chamber that retains liquid; a liquid supply hole that is provided to supply the liquid retained in the liquid containing chamber to the liquid consumption apparatus; a liquid flow channel through which the liquid containing chamber is in communication with the liquid supply hole; a liquid remaining amount detection sensor having a cavity that constitutes a part of the liquid flow channel, a diaphragm that constitutes a part of a wall surface of the cavity, and a piezoelectric element that applies a vibration to the diaphragm, the liquid remaining amount detection sensor detecting the presence or absence of liquid in the liquid flow channel on the basis of residual vibration in response to the vibration applied to the diaphragm; and a no-liquid-filled empty chamber that is in communication with the outside of the container body, the empty chamber with no liquid filled therein becoming a deaeration chamber that contains and/or accumulates negative pressure for deaeration when the liquid container is subjected to vacuum packing.

Inventors: Ishizawa; Taku (Shiojiri, JP), Shinada; Satoshi (Shiojiri, JP)

Assignee: Seiko Epson Corporation

International Classification: B41J 29/393 (20060101)

Expiration Date: 2021-09-01 0:00:00