Patent ID: 6086187
Filing Date: 2000-07-11
Classification: B41J

Abstract:
An ink jet head, comprising:a support having a surface characteristic;an intermediate layer provided on said support and which said intermediate layer improves the surface characteristic of the support;a lower layer provided on said intermediate layer; anda plurality of heaters provided on said lower layer for generating heat energy to discharge an ink,wherein said support comprises at least one of a ceramic material and a glass material, said intermediate layer comprises silicon and has a thermal conductivity higher than said lower layer and said support, and said lower layer comprises a layer of silicon dioxide having a thickness of between about 0.5 .mu.m and 5 .mu.m, inclusive, and further comprising;a plurality of ink channels each having a discharge opening and which are provided in correspondence with said heaters; anda common chamber for supplying the ink to said plurality of ink channels, said intermediate layer extending from a position beneath said heaters to a position beneath said common chambers,wherein said intermediate layer conducts heat from beneath said heaters toward said common chamber.