| 摘要 |
PROBLEM TO BE SOLVED: To suppress the occurrence of downtime of an apparatus caused by expansion of an interpage area in imaging condition adjustment processing.SOLUTION: A control part is configured to execute the following processing. Imaging condition adjustment processing is performed in parallel with imaging processing of forming images based on imaging information input to an image information input part in image output areas of photoreceptors 11y, 11c, 11m, and 11b. In the imaging condition adjustment processing, a y test toner image, c test toner image, m test toner image, and b test toner image are formed in non-image output areas at the ends in the rotation axis direction of the photoreceptors 11y, 11c, 11m, and 11b, and are page corresponding areas in a surface movement direction (sub scanning direction).SELECTED DRAWING: Figure 1 |
