Patent ID: 9550357
Date: 2017-01-24
CPC Classifications: B41J

Claim:
1. An image processor of a printing apparatus, processor comprising: a first printing head having a plurality of recording units individually spaced away at a given interval in a direction orthogonal to a transportation direction of a print medium and individually spaced away along the transportation direction of the print medium; a second printing head disposed downstream of the first printing head and having a plurality of recording units arranged individually at a given interval in the direction orthogonal to the transportation direction of the print medium; a print unit formed by at least the two printing heads, i.e., the first printing head and the second printing head, and performing printing onto the print medium; a recording position obtaining device obtaining recording positions of a first image printed with the first printing head and a second image printed with the second printing head; a positional shift amount calculating device calculating a positional shift amount between the recording positions of the first image and the second image calculated by the recording position obtaining device, the positional shift amount being caused by skew of the print medium; and a positional shift interpolating image converter performing weighting, if a remainder is generated through division of the positional shift amount by the given interval, to the first image or the second image depending on the remainder to convert the first image or the second image into a positional shift interpolating image having been shifted in accordance with the skew of the print medium.