Liquid residue detection method, fault detection device, liquid consuming device and liquid container

Abstract

A liquid container (1) includes: a liquid containing chamber (7) that discharges a liquid stored therein from a liquid discharge port (7b) by pressurization of a pressure unit; a liquid detection chamber that is disposed in a region where a pressure is applied by the pressure unit and is connected to the liquid containing chamber, a volume of the liquid detection chamber being increased according to an inflow of the liquid from the liquid containing chamber and being reduced when the inflow of the liquid from the liquid containing chamber stops; a detection unit (11) for detecting a change of the volume of the liquid detection chamber; and a valve mechanism (12) that is disposed between the liquid containing chamber and the liquid detection chamber and can block an inflow of the liquid from the liquid containing chamber to the liquid detection chamber.A method of detecting a liquid residual quantity in a liquid container, the liquid container including: a supply port through which a liquid is supplied to a liquid consuming apparatus; a liquid containing chamber that discharges the liquid stored therein through a liquid discharge port; a liquid detection chamber (21) that is connected to the liquid containing chamber, a volume of which can be increased according to an inflow of the liquid from the liquid containing chamber and can be reduced when the inflow of the liquid from the liquid containing chamber stops; a detection unit (11) for detecting a change of the volume of the liquid detection chamber; and a valve mechanism (12) that is disposed between the liquid containing chamber and the liquid detection chamber (21) and can block the inflow of the liquid from the liquid containing chamber to the liquid detection chamber (21).

Description

technical field [0001] The present invention relates to a failure detection method of a detection unit provided in a liquid container, a failure detection device, a liquid consuming device, and a liquid container that supplies liquid such as ink to a liquid consuming device such as a liquid ejection head that ejects a small amount of liquid droplets. Background technique [0002] A liquid ejection head of a printing apparatus, a microdiffuser, or even a commercial recording apparatus that requires ultra-high-quality printing receives a supply of ejected liquid from a liquid container that is detachable from the apparatus main body. In order to prevent the nozzle head from being damaged due to cavitation, it is necessary to monitor the remaining liquid level in the container. [0003] Therefore, various proposals have been proposed for detecting the remaining amount of ink in an ink cartridge serving as a liquid container used in a recording device. [0004] As such a struct...

AI Technical Summary

Problems solved by technology

[0012] Therefore, there is the following problem in the use of the liquid consumption device: it is impossible to detect the misoperation (fault) that the detection unit feeds back the presence of liquid when the liquid is exhausted.

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