초록 ▼

A high-durability printhead for an ink cartridge printing system. The printhead includes a substrate having ink ejectors (e.g. resistors) thereon and an orifice plate positioned above the substrate. The orifice plate has a top surface, bottom surface, and a plurality of openings therethrough. The or

A high-durability printhead for an ink cartridge printing system. The printhead includes a substrate having ink ejectors (e.g. resistors) thereon and an orifice plate positioned above the substrate. The orifice plate has a top surface, bottom surface, and a plurality of openings therethrough. The orifice plate is optimally produced from a non-metallic organic polymeric composition. To improve the durability, heat-stability, and ink resistance of the printhead, an intermediate layer manufactured from a thermoplastic polyimide is employed between the orifice plate and the ink ejector-containing substrate. This particular system generally improves the structural integrity of the printhead and provides longer cartridge life.

대표청구항 ▼

[ The invention that is claimed is:] [1.] A printhead for use in an ink cartridge comprising:a substrate comprising an upper surface, said upper surface comprising at least one ink ejector thereon;an orifice plate member positioned over and above said substrate, said orifice plate member being compr

[ The invention that is claimed is:] [1.] A printhead for use in an ink cartridge comprising:a substrate comprising an upper surface, said upper surface comprising at least one ink ejector thereon;an orifice plate member positioned over and above said substrate, said orifice plate member being comprised of a non-metallic organic polymer composition, said orifice plate member further comprising a top surface, a bottom surface, and at least one opening passing through said orifice plate member; andan intermediate layer positioned between said orifice plate member and said substrate, said intermediate layer being comprised of at least one thermoplastic polyimide composition and at least one non-thermoplastic polyimide composition.