Patent ID: 8215743

Claim:
A recording apparatus comprising: a carriage; a first head group including a recording head and disposed on the carriage; a second head group including a recording head and disposed on the carriage adjacent the first head group in a staggered manner with respect to a sub-scan direction, wherein the carriage is configured to move in a main scan direction in order to record an image on a recording medium; a forming unit configured to cause the first head group to form a first pattern and the second head group to form a second pattern on the recording medium, wherein plural pairs of the first and the second patterns are successively formed spaced apart from each other in the sub-scan direction, and wherein a position of the second pattern relative to a position of the first pattern in the sub-scan direction is varied successively from one pair of the first and the second patterns to another; and an adjusting unit configured to adjust a positional relationship between a print position of the recording head of the first head group and a print position of the recording head of the second head group in the sub-scan direction based on a positional relationship between the first and the second patterns.