Patent ID: 8075116
Filing Date: 2011-12-13
Classification: B41J

Abstract:
1. An ink cartridge for an inkjet printhead, the ink cartridge comprising: an ink storage volume; an outlet opening with an outlet valve for connection to an inlet on the printhead, the outlet valve having a radially extending flange portion fixed within the outlet opening; and, an annular skirt of resilient material extending from the side of the outlet opening to the flange portion, the annular skirt being biased, due to the resilient material alone, into sealing engagement with the flange portion to close the outlet valve; wherein, the annular skirt is configured such that engagement with the inlet on the printhead during installation of the cartridge, axially compresses the annular skirt to cause side of the annular skirt to buckle radially outwardly to open the outlet valve such that ink flows from the ink storage volume around the radially extending flange portion to the printhead.