| 摘要 |
<p>Efficient printing of data including two types of areas in the sub-scanning direction, a color area and a monochromatic area, are present. During color mode printing, in the event that all main scan lines of the color unit lines come to be positioned within the monochromatic area when it is assumed that the color mode sub-scan and a unit scan operation are performed next, a specific positioned feed is executed so that the uppermost main scan line of an achromatic unit band comes to an upper edge of the monochromatic area, the achromatic unit band consisting of plural main scan lines without any gap therebetween for which the achromatic nozzle group services with a single unit scan operation. Subsequently a transition is made to monochromatic mode printing. <IMAGE></p> |
