Patent ID: 8147046
Filing Date: 2012-04-03
Classification: B41J

Abstract:
1. A refillable ink cartridge containing ink that is supplied to a liquid discharge device that discharges a droplet of the ink, the refillable ink cartridge comprising: an ink supply opening portion including an ink supply opening; an elastically deformable sealing member configured to hermetically seal the ink supply opening, wherein the sealing member is configured to be penetrated by a needle-shaped member in order to allow the refillable ink cartridge to be refilled with ink via the ink supply opening portion; a cap member configured to hold the sealing member in place; and a protection member including a cylinder member being configured to be fitted on a periphery of the cap member, the protection member including a sealing portion disposed on an inner surface of the protection member and being configured to hermetically seal the ink supply opening portion outside the sealing member.