Patent ID: 6364475
Filing Date: 2002-04-02
Classification: B41J

Abstract:
A print cartridge for an inkjet printer comprising:a flexible circuit having a nozzle member formed therein, said nozzle member including a plurality of ink orifices and the flexible circuit having window openings therein, the window openings exposing electrical leads on the flexible circuit for receiving an externally dispensed adhesive; a substrate containing a plurality of heating elements and associated ink ejection chambers, said substrate having electrodes to which the electrical leads are bonded, said substrate mounted on a back surface of said nozzle member, each heating element being located proximate to an associated ink orifice, said back surface of said nozzle member extending over two or more outer edges of said substrate; a print cartridge body, formed of a first material, having a headland portion located proximate to the back surface of said nozzle member, said headland portion having an adhesive support surface; an adhesive layer, formed of a second material different from said first material, located between the back surface of said nozzle member and the headland portion to affix said nozzle member to said headland portion and form an adhesive ink seal, said adhesive layer located on the adhesive support surface and within the window openings so as to fully encapsulate the electrical leads bonded to the substrate electrodes; and a support strip formed by said flexible circuit within the window openings for supporting the electrical leads, said support strip being encapsulated by said adhesive layer.