Patent ID: 8080093

Claim:
A liquid supply apparatus comprising: a defoaming chamber forming member; a partition wall located on an upper surface of the defoaming chamber forming member; a depressurization chamber forming member located on an upper surface of the partition wall, wherein the material of the partition wall is different from the material of the defoaming chamber forming member or the depressurization forming member; a liquid supply path which supplies a liquid from an upstream side, which is a liquid supply source, to a downstream side in which the liquid is consumed; a defoaming chamber defined by the defoaming chamber forming member which is provided in the liquid supply path and defoams air bubbles included in the liquid; and a depressurization chamber defined by the depressurization chamber forming member which is provided at a position adjacent to the defoaming chamber with a partition interposed therebetween and has a lower pressure than the pressure of the defoaming chamber, wherein the partition allows permeation of gas and restricts permeation of the liquid, and wherein the partition is configured by the partition wall having rigidity.