| 摘要 |
Images to be printed include color images and monochromatic images in combination, the color and monochromatic images are transferred onto an intermediate transfer member, in such a manner that no image-bearable area of the intermediate transfer member is left unused. Before all the four colors of the color image are transferred to the intermediate transfer member, the printing of the monochromatic images are completed. A sheet bearing the printed monochromatic images are temporarily stacked and stored so that the sheets can be finally discharged in the original order of the images. In this manner, it is possible to make good use of the intermediate transfer member, thereby shortening the time required for image formation and improving the throughput of the printing operation.
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