Patent ID: 6550901
Filing Date: 2003-04-22
Classification: B41J,F16K,G05D

Abstract:
An ink-jet recording device for use with an ink container having an ink chamber having an amount of an ink therein, an ink supply chamber, and an ink supply port leading to the ink supply chamber and through which ink flows from the ink supply chamber to the ink-jet recording device, comprising:a connecting member upon which the ink container is detachably mounted; an ink-jet recording head joined to said connecting member; and an ink supply mechanism mounted to said connecting member for supplying ink from the ink supply port of the ink container to said recording head, the ink supply mechanism comprising: a value body; and a differential pressure valve including a movable elastic membrane member having an opening and normally in elastic contact with the valve body so that the opening is blocked by the valve body, the differential pressure valve separating the ink chamber from the ink supply chamber and opening at a pressure that is greater than a pressure exerted on the differential pressure valve just by the ink in the ink chamber.