Ink cartridge and ink jet record apparatus using ink cartridge

A containing preserve ink and with; the ink is laid used when the recording device and atmospheric through hole is 67 of the container main body (2) and one end of the container main body (2) with liquid level sensor 61 the ink for detecting the ink liquid level. The case liquid level sensor 61 separation wall 62 installed in the container main body is 2 of. When the separating wall (62) and a container main body is 2 of a bubble inducted the gap of the consumption ink with is 63 and releasing the gap 63 a lower gap 64, and is formed 63 and gap (64 is destroying the bubble sensor holding area and gap 65.