Patent ID: 7740341
Filing Date: 2010-06-22
Classification: B41J

Abstract:
1. An inkjet printhead, comprising: a substrate having a surface and a plurality of ink channels through the substrate in the direction substantially vertical to the surface; a plurality of heaters disposed on the surface of the substrate and respectively adjacent to the corresponding ink channels; a plurality of pairs of leads disposed on the surface of the substrate and each pair of leads coupled to a corresponding one of the heaters for conducting current into and out of the corresponding one of heaters respectively, wherein a part of the pair of leads for conducting current into the corresponding one of the heaters and another part of the pair of leads for conducting current out of the same corresponding one of heaters are respectively located between adjacent two of the ink channels; and a nozzle plate disposed on the surface of the substrate and having a plurality of nozzles through the nozzle plate, and the positions of the nozzles being respectively corresponding to the positions of the heaters.