Liquid ejecting head and recording device

A liquid ejecting head, comprising:

• an ejection surface which extends in a first direction as a scanning direction and a second direction orthogonal to the first direction, and is externally exposed;
• a common channel;
• a plurality of individual channels, each of the plurality of individual channels are in communication with the common channel;
• a plurality of nozzles opening at the ejection surface;
• and
• a plurality of partial channels located inside the ejection surface and comprising bottom surfaces on a side of the ejection surface, respective nozzles of the plurality of nozzles opening at the bottom surfaces, wherein
• nozzles of the plurality of nozzles are arranged in plural rows in a direction intersecting with the first direction to constitute a plurality of nozzle rows,
• a number of the nozzles arranged in each nozzle row of the plurality of nozzle rows is greater than a number of the plural rows,
• between nozzles in each nozzle row of the plurality of nozzle rows are nozzles in other nozzle rows of the plurality of nozzle rows as viewed in the first direction,
• a position of openings in the bottom surfaces of the plurality of partial channels differs across at least some nozzles of the plurality of nozzles in the each nozzle row,
• each of the plurality of individual channels includes a pressure chamber and a supply path,
• the supply path connects the common channel and the pressure chamber,
• one of the plurality of partial channels connects the pressure chamber and one of the plurality of nozzles, and
• the each nozzle row includes two or more nozzles which are adjacent to each other and are located on the same positions in the first direction.

A liquid ejecting head, comprising:

• an ejection surface which extends in a first direction as a scanning direction and a second direction orthogonal to the first direction, and is externally exposed;
• a common channel;
• a plurality of individual channels, each of the plurality of individual channels are in communication with the common channel;
• a plurality of nozzles opening at the ejection surface;
• and
• a plurality of partial channels located inside the ejection surface and comprising bottom surfaces on a side of the ejection surface, respective nozzles of the plurality of nozzles opening at the bottom surfaces, wherein
• nozzles of the plurality of nozzles are arranged in plural rows in a direction intersecting with the first direction to constitute a plurality of nozzle rows,
• a number of the nozzles arranged in each nozzle row of the plurality of nozzle rows is greater than a number of the plural rows,
• between nozzles in each nozzle row are nozzles in other nozzle rows of the plurality of nozzle rows as viewed in the first direction,
• a position of openings in the bottom surfaces of the plurality of partial channels differs across at least some nozzles of the plurality of nozzles in the each nozzle row,
• each of the plurality of individual channels includes a pressure chamber and a supply path,
• the supply path connects the common channel and the pressure chamber,
• one of the plurality of partial channels connects the pressure chamber and one of the plurality of nozzles,
• the each nozzle row includes a plurality of nozzle sets and each of the plurality of nozzle sets includes a plurality of nozzle groups each containing a plurality of nozzles,
• the plurality of nozzle groups are configured in a staircase-like arrangement, and
• each of the plurality of nozzle sets includes a first nozzle which is not in any of the nozzle groups.