| 摘要 |
An ink jet head comprises ink discharge openings for discharging ink and a substrate having a plurality of rows in each of which a plurality of electrothermal converting elements for generating thermal energy for discharging ink from the discharge openings are provided and having an ink supply opening between the rows of the plurality of electrothermal converting elements corresponding to length of the row, wherein portions of the substrate having the row disposed the plurality of electrothermal converting elements are connected to each other by a member having a thermal conductivity coefficient nearly equal to or higher than that of the substrate. <IMAGE> |
