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AssigneeCanon Kabushiki Kaisha
InventorsKenji Hasegawa, Isao Kimura, Atsushi Shiozaki, Koichi Touma
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There is provided an ink jet head which includes an electrothermal converting body disposed along a pathway of ink, said electrothermal converting body being provided with a heat generating resistor capable of generating, upon energization, heat energy to be directly applied to ink on a heat acting face whereby discharging said ink, characterized in that said heat generating resistor is composed of a material containing at least Ir and other one specific element at the specific respective composition rates or a material containing at least Ir and other two specific elements at the specific respective composition rates, said heat generating resistor constituted by any of said materials being capable of exhibiting a sufficient durability even in the case of driving the ink jet head with a relatively long drive pulse duration.
A substrate for an ink jet head which includes an electrothermal converting body provided with a heat generating resistor for generating, upon energization, heat energy that is directly applied to an ink on a heat acting face, causing discharge of the ink, characterized in that said heat generating resistor is formed from a material consisting essentially of Ir and Cr in the following respective composition amounts:
An ink jet head which includes an electrothermal converting body disposed along an ink pathway, said electrothermal converting body comprising a heat generating resistor for generating, upon energization, heat energy that is directly applied to an ink on a heat acting face, causing discharge of the ink, characterized in that said heat generating resistor is formed from a material consisting essentially of Ir and Cr in the following respective composition amounts:
An ink jet apparatus which includes an electrothermal converting body provided with a heat generating resistor for generating, upon energization, heat energy that is directly applied to an ink on a heat acting face, causing discharge of the ink, and means for supplying a signal to said electrothermal converting body, characterized in that said heat generating resistor is formed from a material consisting essentially of Ir and Cr in the following respective composition amounts:
Dependencies are inferred from the claim text.