Patent ID: 7775638
Filing Date: 2010-08-17
Classification: B41J

Abstract:
1. An ink jet recording head comprising: a liquid discharge substrate that includes a discharge port for discharging a liquid to a surface of the liquid discharge substrate, a liquid supply port for supplying the liquid discharged from the discharge port to a back surface of the liquid discharge substrate, and an electrode for transmitting and receiving a signal for driving energy generating means for discharging the liquid from the discharge port; a film-like electrical wiring member that is joined with the back surface of the liquid discharge substrate, and that includes a liquid supply port communicating with the liquid supply port of the liquid discharge substrate and an electrical connection portion connected to the electrode; and a holding member that holds the liquid discharge substrate through the electrical wiring member, and that includes a liquid supply port for supplying the liquid to the liquid supply port of the liquid discharge substrate, wherein the liquid supply port of the electrical wiring member, the liquid supply port of the liquid discharge substrate, and the liquid supply port of the holding member communicate with one another, a sealing agent for sealing the electrical connection portion is filled up between the liquid discharge substrate and the electrical wiring member, and a side surface of the liquid supply port of the electrical wiring member is covered with the sealing agent.