| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device capable of forming a color image having a good color tone on a photoreceptor without fogging and obtaining the excellent reproducibility of the color image. SOLUTION: In this color image forming device, an electrifier 2 performing corona discharge, an image exposure means 3 for making the exposing light of the image of dot constitution incident, and plural developing means 4Y, 4M, 4C and 4K for executing non-contact reversal development are disposed around the photoreceptor 1, and a toner image is formed every time the photoreceptor 1 rotates once, whereby plural toner images are superposed. Electrification voltage by the electrifier 2 and the DC component voltage of developing bias of the developing means 4Y, 4M, 4C and 4K are increased in such order that the toner images are superposed and also the incident light quantity of dot exposure is increased in accordance with toner quantity stuck to the incident dots. |
