Patent ID: 7934788

Claim:
An inkjet printing apparatus, for conveying a plurality of types of printing media along a conveying path, and performing printing on the printing medium with a printing head at a printing position set on the conveying path, the inkjet printing apparatus comprising: an upstream conveying unit arranged upstream of the printing position to convey the printing medium; a downstream conveying unit arranged downstream of the printing position to convey the printing medium; a correction section which corrects a conveyance amount of the printing medium when a first conveying state is switched to a second conveying state and after the first conveying state is switched to the second conveying state, the first conveying state being where the printing medium is conveyed by the upstream conveying unit and the downstream conveying unit, and the second conveying state being where the printing medium released from the upstream conveying unit is conveyed by only the downstream conveying unit; and an adjustment section which adjusts a first corrected value of the conveyance amount used by the correction section when the first conveying state is switched to the second conveying state and which adjusts a second corrected value, different from the first corrected value, of the conveyance amount used by the correction section after the first conveying state is switched to the second conveying state by using adjustment values which are set based on an expansion/contraction amount in accordance with a type of the printing medium during printing.