| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device capable of forming a high quality image by obtaining high image density contrast and preventing the fogging of the image by forming a developing nip into a predetermined width with a simple configuration. SOLUTION: In a sweep roller pressuring mechanism 120, an adjusting screw 122 is turned to adjust the length of a tension spring 121 so as to adjust the strength of the energizing force of a sweep roller 110 to a photoreceptor drum 1, whereby the width of a removing nip having specified size is formed. Then, the width of the developing nip having the specified size is formed by providing a developing roller with the pressuring mechanism similar to the sweep roller pressuring mechanism and adjusting the strength of the energizing force of the developing roller to the drum 1. |
