Patent ID: 6151043
Filing Date: 2000-11-21
Classification: B41J

Abstract:
A capping system for sealing ink-ejecting nozzles of an inkjet printhead in an inkjet printing mechanism, comprising:a support frame which moves between a rest position and a sealing position, with the frame including a cap base portion; anda printhead cap supported by the cap base portion, with the cap having a sealing lip sized to surround and seal the printhead nozzles when the frame is in the sealing position so the sealing lip and the printhead define a sealing chamber therebetween when the frame is in the sealing position;wherein the base portion defines a vent hole therethrough to couple the sealing chamber to atmosphere; andwherein the cap includes a bottom wall joining the sealing lip and extending across the base portion, with the cap further including a neck region that surrounds the vent hole and projects into the sealing chamber above the bottom wall of the cap.