Patent ID: 7354129

Claim:
A recording apparatus including a main scanning unit configured to reciprocatingly move a recording head on which a plurality of nozzles that discharge ink is disposed in a main scanning direction and a sub scanning unit configured to convey a recording medium in a sub scanning direction different from the main scanning direction via a conveyance roller, and performing recording onto the recording medium via the recording head, the recording apparatus comprising: a first recording unit configured to record a plurality of first patterns in the main scanning direction onto the recording medium; a second recording unit configured to record a plurality of second patterns in the main scanning direction onto the recording medium after the recording medium is conveyed by the sub scanning unit, wherein the second recording unit uses one of nozzles corresponding to an area in which the first pattern is recorded and nozzles disposed in a vicinity thereof, and wherein the nozzles used for each of the plurality of second patterns are different from each other; and a computation unit configured to compute a conveyance amount of the recording medium by the sub scanning unit based on a difference in a density of the plural patterns formed by the first pattern and the second pattern.