Patent ID: 8485627

Claim:
An inkjet recording apparatus that records an image by discharging ink from a plurality of recording heads that can be separately attached to and/or detached from the inkjet recording apparatus, the inkjet recording apparatus comprising: a detecting unit configured to detect attachment and/or detachment of each of the recording heads; and a pattern recording unit configured to record a pattern used to adjust a displacement of a landing location of each of the recording heads and a pattern used to adjust a displacement between landing locations of two recording heads of the plurality of recording heads, wherein the pattern recording unit only records a pattern used to adjust a displacement of a landing location of an attached and/or detached recording head alone and a pattern used to adjust a displacement between landing locations of recording heads including the attached and/or detached recording head, wherein each of the recording heads includes a memory storing individual information, wherein the detecting unit detects whether an attached recording head was previously attached based on the individual information of the recording heads, the individual information being obtained after a recording head is attached, and wherein when the detecting unit detects that the attached recording head was previously attached, the pattern recording unit only records a pattern used to adjust a displacement between landing locations of recording heads including the reattached recording head.