| 摘要 |
This invention provides an element substrate having a heater selection circuit normally operable even in the use of voltage conversion circuits, which are arranged along the nozzle arrayed direction, each having a small-area in order to reduce the area of the element substrate. The element substrate according to this invention includes a heater selection circuit, which receives a signal output from a voltage conversion circuit, a block selection signal, and a print data signal, and generates and outputs a signal for performing switching by a switching element.
|
