Patent ID: 8083320

Claim:
A liquid ejecting apparatus comprising: a head unit including a plurality of heads that extend in a first direction, the plurality of heads including a plurality of nozzles that eject a liquid onto a medium, are lined up in the first direction, and form a single raster line by ejecting the liquid while performing m number of movements relative to the medium in a second direction, wherein the second direction intersects the first direction, and a width of the head unit in the first direction is greater than a width of the medium in the first direction; a movement mechanism that causes the head unit to perform a plurality of movements relative to the medium alternately in the second direction and the first direction; and a control section that forms an image having a resolution that is n times a pitch of the nozzles, by forming a plurality of the raster lines by the plurality of relative movements of the head unit, and that forms the image by setting a total movement amount of the head unit in the first direction when the head unit performs the plurality of relative movements, wherein the total movement is larger than an effective nozzle width of one of the heads in the first direction multiplied by (m×n−1), and smaller than the effective nozzle width x (m×n), and by setting respective movement amounts of the head unit in the first direction when the head unit performs the plurality of relative movements, larger than the effective nozzle width.