Liquid ejection device and liquid ejection head

Abstract

A liquid ejection device includes: a channel forming portion including an ejection opening through which a liquid is ejected, a pressure chamber communicating with the ejection opening, and an individual channel communicating with the pressure chamber; a first energy generation element provided at a position corresponding to the pressure chamber of the channel forming portion, and generates energy for ejecting the liquid through the ejection opening; a second energy generation element provided at a position corresponding to the individual channel of the channel forming portion, and generates energy for passing the liquid through the individual channel; a temperature detection portion configured to detect a temperature, and is disposed at a position corresponding to the first energy generation element or the second energy generation element; and a control portion configured to control driving of the second energy generation element based on a detection result of the temperature detection portion.

Dependencies are inferred from the claim text.