| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce variation in height of a sealing material by facilitating determination of the coating height of a sealing material. <P>SOLUTION: A recording head includes: a recording element substrate 1100 having a plurality of ink discharge ports and a heater used for discharging ink from the discharge ports; an electrical wiring substrate 1200 having an opening in which the recording element substrate 1100 is arranged and applying a driving signal to the recording element substrate 1100; a supporting member 1400 which supports the recording element substrate 1100 and the electrical wiring substrate 1200; an electrical connection portion in which an electrode portion of the recording element substrate 1100 and an electrode portion of the electrical wiring substrate 1200 are electrically connected by wire; and a sealing material covering and sealing the electrical connection portion. The electrical connection portion is provided with first and second dummy wires 1800 and 1900 indicating an upper limit position and a lower limit position of the height of the surface of the sealing material with respect to thickness direction of the recording element substrate 1100. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
