Patent ID: 7431424
Filing Date: 2008-10-07
Classification: B41J

Abstract:
1. A cartridge for an inkjet printer, the cartridge having a body removably mountable to the inkjet printer, the body comprising: a printhead having an array of ink ejection nozzles; at least one air vent in the body; at least one ink storage compartment having a deformable ink bag which is air tight and purged of air through fluid connection with the at least one air vent; an ink feed system for supplying ink from the or each ink compartment to the printhead; and, a maintenance station for engaging the printhead to perform one or more maintenance functions, wherein the ink storage compartment has a displaceable wall section biased to expand the ink bag to generate a negative pressure therein, such that ink does not inadvertently leak from the ink ejection nozzles of the printhead.