Patent ID: 7423783

Claim:
A color image scanning and printing device comprising: a scanning unit which scans an image of a plural number of pages; a conversion unit performing a conversion process by converting a scanned result scanned by the scanning unit into image data of each of a plurality of color components for printing one page as a unit; a printing unit which prints an image based on the converted image data of each of the color components; and a control unit which executes the conversion process by the conversion unit for a part of the color components of the scanned result of the image of the plural number of pages, prior to the conversion process by the conversion unit for remaining color components, wherein the printing unit prints an image based on image data of two pages for each of the color components, when the plurality of color components are four colors, a conversion process for two preceding color components of the two pages is executed by the conversion unit prior to a conversion process for a remaining two color components of the two pages by the conversion unit, wherein the conversion process for the two preceding color components of a first page of the two pages by the conversion unit occurs while the scanning unit scans an image of a second page of the two pages, and the conversion process for the two preceding color components of the first page of the two pages by the conversion unit is completed before the conversion process is executed for the two preceding color components of the second page of the two pages, and before the scanning unit completely scans the image of the second page.