Patent ID: 9254659
Filing Date: 2016-02-09
CPC Classification: B41J

Claim Text:
1. A liquid ejection apparatus comprising: a liquid ejection head including, wherein the liquid ejecting apparatus is configured to record on a recording material with a liquid ejected from the ejection ports while the liquid ejection head and the recording material are moving relatively, wherein, on a surface on which the ejection ports are arranged, if a direction of relative movement of the recording material is defined as an x direction, a direction perpendicular to the relative movement is defined as a y direction, a pitch of pixels to be recorded in the y direction is denoted by d, and m and n are different odd numbers of 3 or greater, the plurality of ejection ports are arranged in a manner such that md and nd are repeated alternately as the distance between the ejection ports adjoining in the y direction, and such that a plurality of ejection port arrays extending substantially linearly in an oblique direction with respect to the x direction and the y direction on an xy plane are formed, the ejection port arrays are constituted by (m+n)/2 ejection ports, and positions of the ejection ports adjoining in the ejection port array are displaced by 2d.