Patent ID: 6132034
Filing Date: 2000-10-17
Classification: B41J

Abstract:
An ink jet print head comprising:a substrate defining an ink aperture through which ink flows from a reservoir, said substrate further having first and second major surfaces, said second major surface substantially surrounding said ink aperture and said first major surface substantially disposed over and surrounding said second major surface such that a step is defined by an elevation between the first and second major surfaces;a step between said first and second major surfaces, said step surface offset from and substantially surrounding said ink aperture;a plurality of ink energizing elements substantially on the first major surface of the substrate;a barrier layer connected to the first major surface thereby forming wall portions of said barrier layer, said barrier layer peripherally defining an ink manifold, and encompassing the ink aperture;an orifice plate connected to the barrier layer, spaced apart from the substrate first major surface, enclosing the ink manifold, and defining a plurality of orifices, each associated with a respective ink energizing element.