Liquid ejection head

A liquid ejection head comprising:

• a first individual ejection unit;
• a second individual ejection unit;
• and a common flow passage,
• wherein the first individual ejection unit and the second individual ejection unit each include
• an ejection port configured to eject liquid,
• a pressure chamber that communicates with the ejection port,
• a first energy generating element that is provided in the pressure chamber and configured to generate energy for ejecting the liquid from the ejection port,
• an individual flow passage that communicates with the pressure chamber, and
• a second energy generating element that is provided in the individual flow passage,
• wherein the common flow passage supplies the liquid to the individual flow passage for each of the first individual ejection unit and the second individual ejection unit,
• wherein the first energy generating element and the second energy generating element in each of the first individual ejection unit and the second individual ejection unit are all driven by a common driving pulse,
• wherein the first energy generating element and the second energy generating element in the first individual ejection unit are driven at a first same timing which is a first timing,
• wherein the first energy generating element and the second energy generating element in the second individual ejection unit are driven at a second same timing which is a second timing, and
• wherein the first timing and the second timing are controlled to be different from each other.