| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrophotographic device for stably obtaining proper image quality, whose image density is high and in which the soiling of an image background part is eliminated, even though printing speed is raised. SOLUTION: In the electrophotographic device, provided with a developing machine to perform magnetic brush development by supplying a facing photoreceptor 1, having photoconductivity with developer by using a plurality of developing rollers 6 and 7 arranged close to the photoreceptor 1 and having magnetic attracting force, a developer-regulating member 11 is arranged between the developing roller 6 and the developing rollers 7 of the developing machine, in which the developing rolls 6 and 7 are turning in a direction opposite to the moving direction of the photoreceptor 1, and also the circumferential speed ratio of the developing roll and the photoreceptor is set to <=0.9. |
