Patent ID: 6755515
Filing Date: 2004-06-29
Classification: B41J

Abstract:
An ink cartridge for an ink jet printer, comprising:a housing having a bottom wall and an opening; an ink supply port formed on the bottom wall; a lid covering the opening, the lid having a through hole; an air vent section formed on said lid which communicates with atmospheric air when the ink cartridge is in use; a circuitous channel formed in an outer surface of said lid and connecting said through hole to said air vent section, said circuitous channel comprising a tunnel part which is a an unexposed passage running through a portion of said lid; a first seal member affixed to said lid over said through hole and one part of said circuitous channel; and a second, removable seal member affixed to said lid over said air vent section, said second seal member being removed when the ink cartridge is in use.