| 摘要 |
PROBLEM TO BE SOLVED: To prevent defect of an output image when a position on an image carrier, where voltage application has been started on a developer carrier, passes through a transfer part.SOLUTION: A control part 110 has a first mode where image quality takes precedence, and a second mode where productivity takes precedence. In the first mode, an electrostatic image of an image is formed on a photoreceptor drum 1Y after the position of an image carrier, where voltage application has been started on a developing sleeve 4s, reaches a primary transfer part NY. In the second mode, the electrostatic image of the image is formed on the photoreceptor drum 1Y before the position on the photoreceptor drum 1Y, where voltage application has been started on the developing sleeve 4s, reaches the primary transfer part NY. |
