Patent ID: 7889389
Filing Date: 2011-02-15
Classification: H04N

Abstract:
1. A printing method of printing on a printing medium, comprising: generating dot data representing a status of dot formation on each of print pixels of a print image to be formed on the printing medium, by performing a halftone process on image data representing an input tone value of each of pixels constituting an original image; and generating the print image with a print head by mutually combining a plurality of dot groups in a common print area, each of the plurality of dot groups being formed in each scan of the print head in response to the dot data, wherein the generating dot data comprises setting a condition for the halftone process for reducing contact between dot groups formed consecutively by a plurality of temporally consecutive scan passes within at least part of tone values, wherein the halftone process condition is set such that a prescribed mixed pattern composed of at least two consecutively formed dot groups has prescribed spatial frequency characteristics.