Patent ID: 6332666
Filing Date: 2001-12-25
Classification: G06K

Abstract:
A printing apparatus which has a printing unit capable of performing printing in a main scanning direction and in a sub scanning direction perpendicular to the main scanning direction respectively with different resolutions, comprising:storage means for storing raster data expanded into binary data of first and second pixel values with a predetermined resolution;first setting means for setting a multiple-speed number of printing speed to said printing unit, the multiple-speed number representing what times standard printing speed the printing is to be performed at;second setting means for setting the printing resolution of the main scanning direction to be the resolution of the raster data stored in said storage means, and setting the printing resolution of the sub scanning direction to be a quotient of the resolution of the raster data divided by the multiple-speed number of the printing speed, to said printing unit; andresolution conversion output means for outputting a video signal to said printing unit, the video signal being obtained by integrating to one pixel an area aligned with the sub scanning direction of the raster data stored in said storage means and composed of pixels of the number as much as the multiple-speed number of the printing speed.