Patent ID: 6280024
Filing Date: 2001-08-28
Classification: B41J

Abstract:
An ink cartridge for supplying ink to a recording head, comprising:an ink cartridge main body having a plurality of walls and an exterior and an interior;an ink supply port disposed in a first of said plurality of walls of said ink cartridge main body and communicating from the interior to the exterior of said ink cartridge main body to permit the flow of ink therethrough; anda cover having an internal surface shaped to define a second of said plurality of walls of said interior of said ink cartridge main body, an ambient air vent formed in said cover in fluid communication with ambient air, an air communication passage formed at least in part in said internal surface of said cover and said air communication passage having a first end and a second end and being in fluid communication at said first end of said passage with said ambient air vent, and a further air vent formed in said cover and in fluid communication with said air communication passage at the second end of said passage and with the interior of said ink cartridge main body, the interior of said ink cartridge main body being placed in fluid communication with ambient air through said air communication passage and said further air vent and said ambient air vent.