Patent ID: 7441877
Filing Date: 2008-10-28
Classification: B41J

Abstract:
1. A substrate for an inkjet recording head comprising: a plurality of arrays of recording elements; a plurality of common power supply wires, each of which extends from a position near one end portion of each array to a position near the other end portion thereof and is connected to a power supply-side electrode pad through the position near the one end portion of the array; and a plurality of common ground wires, each of which extends from a position near to the one end portion of each array to a position near to the other end portion thereof and is connected to a ground-side electrode pad through the position near the other end portion of the array, wherein the plurality of common power supply wires and the plurality of common ground wires are collectively wired to the power supply-side electrode pad and the ground-side electrode pad, respectively, and wherein the plurality of common power supply wires are formed to have different widths depending on distances from the power supply-side electrode pad, and the plurality of common ground wires are formed to have different widths depending on distances from the ground-side electrode pad.