LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS

摘要

There is provided a miniaturized liquid ejecting head and a liquid ejecting apparatus on which the liquid ejecting head is mounted. A plurality of ink supply ports are formed on a print element substrate to supply ink to a bubble generation chamber. Electrothermal transducing elements are arranged only in regions interposed between the plurality of ink supply ports each other. A drive circuit for driving the electrothermal transducing element is arranged in a region that is not included in the region interposed between the plurality of ink supply ports each other.

主权项

1. A liquid ejecting head comprising:
an element substrate; a support member that supports the element substrate; and an ejection port plate that is mounted to the element substrate, wherein a bubble generation chamber is defined between the element substrate and the ejection port plate to reserve liquids therein, the element substrate is provided with a heater element that heats liquid reserved in the bubble generation chamber to generate bubbles, and a plurality of liquid supply ports formed to penetrate therethrough from a front surface on which the heater element is provided to a back surface as the reverse side to supply the liquid to the bubble generation chamber, the ejection port plate is provided with ejection ports formed therein to eject the liquid from the bubble generation chamber by driving the heater element, the back surface of a portion outside of the liquid supply port and a portion between the liquid supply ports each other in the element substrate is attached to the support member, the heater element is arranged only in a first region of the element substrate interposed between the plurality of liquid supply ports each other, and a drive circuit that drives the heater element is arranged at least in a second region outside of the first region.