Patent ID: 7810907

Claim:
A board for an inkjet printing head comprising: a plurality of printing elements; a driving circuit for driving the plurality of printing elements individually; a common power supply wire for connecting the plurality of printing elements commonly to a power supply; a common ground wire for connecting the plurality of printing elements commonly to a ground; a plurality of driving signal wires which are wired in a lower layer under the common power supply wire and the common ground wire for the purpose of giving driving signals to the driving circuit, a plurality of electrode pads; and a plurality of electric wiring members having a plurality of first electrode leads connected to the common power supply wire and the common ground wire and a plurality of second electrode leads connected to the driving signal wires, wherein the driving signal wires are connected to the plurality of the second electrode leads through the electrode pads, wherein the common power supply wire and the common ground wire are configured to directly connect respectively to the plurality of the first electrode leads without use of electrode pads, and wherein the first electrode leads and the second electrode leads are disposed alternately.