Patent ID: 6257714
Filing Date: 2001-07-10
Classification: B41J

Abstract:
An inkjet system, including an ink reservoir coupled to an inkjet pen cartridge and having apparatus for removing air from the inkjet cartridge, comprising:an inkjet cartridge housing having a plurality of chambers for containing liquid ink therein;a print head mounted to a bottom region of said housing;a first ink chamber within said housing having a collection area for collection of unwanted air within said housing at a top region of said first ink chamber opposite said bottom region;a second ink chamber within said housing adjacent said first ink chamber and fluidically connected to said first chamber for receiving ink therefrom;a conduit mounted within said housing and coupling said second ink chamber with said collection area by having a first end at said second ink chamber and a second end within said collection area; anda vacuum source selectively engageable with said housing and drawing off said unwanted air from said collection area by drawing said unwanted air through a non-emitting nozzle at said bottom region so that said unwanted air is removed from the cartridge.