초록 ▼

This disclosure describes a headland design for adhesively attaching a printhead to a print cartridge which reduces dimple in the nozzle member and the attendant nozzle trajectory errors. In a preferred embodiment, a nozzle member containing an array of orifices has a substrate having heater element

This disclosure describes a headland design for adhesively attaching a printhead to a print cartridge which reduces dimple in the nozzle member and the attendant nozzle trajectory errors. In a preferred embodiment, a nozzle member containing an array of orifices has a substrate having heater elements formed thereon, affixed to a back surface of the nozzle member. Each orifice in the nozzle member is associated with a single ink ejection chamber and heating element formed on the substrate. The nozzle member is adhesively sealed with respect to the ink reservoir body by forming an ink seal circumscribing the substrate, between the back surface of the nozzle member and the headland area of the print cartridge. This method and design for a print cartridge headland which provides a seal directly between a nozzle member and an ink reservoir body. The above design provides reduced yield losses, and thus lower manufacturing costs, when manufacturing print cartridges.

대표청구항 ▼

[ What is claimed is:] [1.] An print cartridge for an inkjet printer comprising:a nozzle member having a plurality of ink orifices formed therein;a substrate containing a plurality of heating elements and associated ink ejection chambers, said substrate mounted on a back surface of said nozzle membe

[ What is claimed is:] [1.] An print cartridge for an inkjet printer comprising:a nozzle member having a plurality of ink orifices formed therein;a substrate containing a plurality of heating elements and associated ink ejection chambers, 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 headland portion located proximate to the back surface of said nozzle member and including an inner raised wall circumscribing an inlet slot, the inner raised wall having an adhesive support surface and an adhesive dam formed thereon and having wall openings therein, said wall openings having a support surface; andan adhesive layer located between the back surface of said nozzle member and the inner raised wall to affix said nozzle member to said headland, said adhesive layer is located on the adhesive support surface and the adhesive dam and along the support surface within the wall openings therein.