Liquid droplet ejection head module, liquid droplet ejection head, and liquid droplet ejecting apparatus

A liquid droplet ejection head comprising a plurality of liquid droplet ejection head modules comprising:

• plurality of ejection surfaces, each ejection surface comprising a pair of first sides extending in a direction intersecting with a first direction, and a pair of second sides linking the pair of first sides and extending in a direction inclined with respect to the first direction;
• first nozzles that are provided on the plurality of ejection surfaces and arranged in the direction inclined to the first direction and in a direction substantially orthogonal to the first direction, and that eject first liquid droplets;
• and
• second nozzles that are provided on the plurality of ejection surfaces so as to be further downstream in the first direction than the first nozzles and arranged in the direction inclined to the first direction and in the direction substantially orthogonal to the first direction, and that eject second liquid droplets,
• wherein, when the plurality of ejection surfaces are linearly arranged such that the second sides overlap and the first nozzles are projected in a direction orthogonal to the first direction, the projected first nozzles are arranged in equal intervals in the direction orthogonal to the first direction, and when the second nozzles are projected in the direction orthogonal to the first direction, the projected second nozzles are arranged in equal intervals in the direction orthogonal to the first direction,
• wherein the plurality of ejection surfaces are linearly arranged such that the second sides overlap.

A liquid droplet ejection apparatus comprising a liquid droplet ejection head module comprising:

• a plurality of ejection surfaces, each ejection surface comprising a pair of first sides extending in a direction intersecting with a first direction, and a pair of second sides linking the pair of first sides and extending in a direction inclined with respect to the first direction;
• first nozzles that are provided on the plurality of ejection surfaces and arranged in the direction inclined to the first direction and in a direction substantially orthogonal to the first direction, and that eject first liquid droplets;
• and
• second nozzles that are provided on the plurality of ejection surfaces so as to be further downstream in the first direction than the first nozzles and arranged in the direction inclined to the first direction and in the direction substantially orthogonal to the first direction, and that eject second liquid droplets,
• wherein, when the plurality of ejection surfaces are linearly arranged such that the second sides overlap and the first nozzles are projected in a direction orthogonal to the first direction, the projected first nozzles are arranged in equal intervals in the direction orthogonal to the first direction, and when the second nozzles are projected in the direction orthogonal to the first direction, the projected second nozzles are arranged in equal intervals in the direction orthogonal to the first direction.