Patent ID: 7862158
Filing Date: 2011-01-04
Classification: B41J

Abstract:
1. An ink jet recording head comprising: a substrate provided at a first surface with a plurality of energy generation elements for generating energy for discharging ink, and an ink supply port, penetrating between the first surface and a second surface which is opposite the first surface, for supplying the ink to the energy generation elements; a channel member for forming ink channels, allowing the ink supply port to communicate with ink discharge ports for discharging ink, the ink discharge ports corresponding to the plurality of energy generation elements; and an organic film layer formed from an organic film provided between the channel member and the first surface of the substrate, wherein stacked members comprising the organic film layer and another layer are provided at a position facing an opening of the ink supply port on a side of the first surface of the substrate and include a plurality of holes penetrating the organic film layer and the other layer so as to allow the supply port and the ink channels to communicate with one another.