| 摘要 |
PROBLEM TO BE SOLVED: To provide a substrate for a liquid discharge head, a liquid discharge head, a liquid discharge device, and a liquid discharge method, in which a configuration of a substrate for a recording head is simplified, while stabilizing driving voltage of a discharge energy generating element, and liquid discharge performance is improved.SOLUTION: A substrate for a liquid discharge head comprises: an AND circuit 107 which generates a control signal for switching on an NMOS transistor 103; and an LVC 106 which controls a gate voltage of the NMOS transistor 103 on the basis of the control signal. With respect to a PMOS transistor 102, a constant gate voltage is applied using a constant voltage circuit B109 without including the AND circuit 107 and the LVC 106.SELECTED DRAWING: Figure 1 |
