Liquid container

Abstract

The present invention provides a low-price liquid container, in the liquid container, the capacity of the liquid detection chamber may not vary repeatedly such that it is unnecessary to improve durability of flexible film. The liquid container (1) supplying ink from a supplying port (9) of an open of the container body (5) to inkjet recording device, comprises: a liquid containing chamber (7) that discharges a liquid stored therein from a liquid discharge port (7b) by pressurization of a pressure unit; a sensor chamber (21) that is disposed in a region where a pressure is applied by the pressure unit and is connected to the liquid containing chamber (7), a volume of the liquid detection chamber (7) being increased according to an inflow of the liquid from the liquid containing chamber (7) and being reduced when the inflow of the liquid from the liquid containing chamber stops; a ink detection unit (11) for detecting a change of the volume of the sensor chamber( 21); and a valve mechanism (12) that is disposed between the liquid containing chamber (7) and the sensor chamber (21) and can block an inflow of the liquid from the liquid containing chamber (7) to the sensor chamber (21).

Description

technical field [0001] The present invention relates to a liquid container, and more specifically, the present invention relates to a liquid container for supplying liquid such as ink to a liquid consumption device such as a liquid ejection head that ejects a minute amount of liquid droplets. Background technique [0002] A liquid ejection head of a printing apparatus, a microdiffuser, and even a commercial recording apparatus requiring ultra-high-quality printing receives a supply of ejected liquid from a liquid container detachable from the apparatus body. In order to prevent the nozzle head from being damaged due to cavitation, it is necessary to monitor the remaining liquid 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 structure for detecting the remaining amount of liquid, there is, for example, a struct...

AI Technical Summary

Problems solved by technology

Therefore, whenever the liquid is discharged from the liquid storage chamber to increase the volume of the liquid detection chamber, the flexible film is repeatedly deformed to expand the volume of the liquid detection chamber. Therefore, the flexible film must be formed of a highly durable and expensive material. , which causes a problem that the cost of the liquid container increases

[0010] In addition, if the thickness of the flexible film is increased in order to improve the durability of the flexible film, the flexible film cannot be easily deformed, which may make it impossible for the flexible film to smoothly follow the volume change of the liquid detection chamber.

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