Patent ID: 6926396
Filing Date: 2005-08-09
Classification: B41J

Abstract:
1. An ink cartridge for a recording apparatus, which comprises: a case having an ink tank chamber, and an ink end chamber communicating with the ink tank chamber and an ink supply port; a first opening formed through an exterior wall of the case, which communicates with the ink tank chamber; a second opening formed through the exterior wall of the case, which communicates with the ink end chamber; and a seal member sealing at least one of the first and second openings and being attached to the exterior wall of the case, wherein: the ink end chamber is adjacent to the ink tank chamber in a vertical direction and located between the ink tank chamber and the ink supply port in a direction of ink flow; the ink end chamber communicates with the ink tank chamber via a communication flow passage having first and second communication ports at lower and upper positions in the vertical direction, the first communication port being opened to the ink tank chamber, and the second communication port being opened to the ink end chamber; and the second opening is located in the proximity of the first communication port to communicate with the ink end chamber via the first and second communication ports.