a head having a plurality of nozzles aligned along a nozzle row direction for ejecting droplets onto a recording medium;

a movement unit configured to move the head relative to the recording medium in a relative movement direction; and

a control unit configured to record a test pattern on the recording medium by controlling the head and the movement unit, and to perform recording by correcting control of the head and/or the movement unit based on a correction value obtained from the test pattern, wherein

the test pattern includes a plurality of patches, each of the patches including a plurality of images having different shapes other than ruled lines or dashed lines, each of the shapes having a length in the nozzle row direction and a length in a direction intersecting the nozzle row direction, the images being aligned along the direction intersecting the nozzle row direction,

in each of the shapes of the images, the length in the nozzle row direction varies along the direction intersecting the nozzle row direction, and/or the length in the direction intersecting the nozzle row direction varies along the nozzle row direction, and

the control unit is configured to derive a plurality of candidates for the correction value for correcting a landing position, at which the droplet lands on the recording medium, in the relative movement direction.