| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid discharge head which reduces temperature differences between recording element substrates and temperature differences in each recording element substrate without increasing an amount of a liquid flowing in a liquid discharge head.SOLUTION: In a liquid discharge head, recording element substrates 100 for discharging a liquid are disposed at a support member 200. A liquid is supplied to the recording element substrates 100 through a liquid supply passage 202 formed in the support member 200. In the liquid supply passage 202, passage cross section areas of portions which respectively correspond to the recording element substrates 100 are set according to the recording element substrates 100.SELECTED DRAWING: Figure 5 |
