Patent ID: 8075102
Filing Date: 2011-12-13
Classification: B41J

Abstract:
1. A substrate for an ink jet head provided with a plurality of energy generating members which generate energy used for discharging an ink, wherein the plurality of energy generating members are provided in a row in a longitudinal direction of the substrate, the substrate has an electrode pad which is arranged near a side of the substrate extending in an intersecting direction intersecting with respect to the longitudinal direction, and is for electrically connecting to an outside of the substrate, a plurality of electrode wirings for electrically connecting the plurality of energy generating members and the electrode pad, and a plurality of resistance elements which are respectively provided at the plurality of electrode wirings, each of the plurality of electrode wirings includes a first portion extending in the longitudinal direction from a side of the electrode pad of each of the electrode wirings, and a second portion which extends in the intersecting direction from a side of the first portion opposite from the side of the electrode pad toward the energy generating members and is provided with the resistance elements, and resistance values of the plurality of resistance elements differ from one another according to resistance values of the electrode wirings provided with the respective resistance elements.