Patent ID: 6908182

Claim:
An ink cartridge comprising: a cartridge main body having a first case and a second case joined to the first case; first and second ink bags each comprising a bag main body storing ink and an outlet through which the ink can be discharged from the bag main body, the first and second ink bags being housed by the first case and the second case, wherein when the first case and the second case are joined, the outlets of the first and second ink bags are pressed directly against each other by the first case and the second case; and a partition plate attached to a predetermined position of the first case, said partition plate separating compartments housing the first ink bag and the second ink bag respectively, wherein the partition plate is detachable in a direction substantially perpendicular to the bottom plate portion along the side plate portion, and wherein each of the first case and the second case comprises a partition plate clamp face such that the partition plate is clamped by the partition plate clamp face of the first case and the partition plate clamp face of the second case for defining the position of the partition plate.