| 摘要 |
PROBLEM TO BE SOLVED: To obtain a uniform image whose environment dependency is reduced and whose quality is excellent without having density unevenness and surface fogging, and also to attain an excellent gradation performance. SOLUTION: This roller 1 is constituted so as to supply an image forming body 3 with toner 4 by being brought into contact with or being adjacent to it and to form a visible image on the surface of the image forming body 3. In this case, the roller 1 possesses a resin layer and an elastic layer consisting of a resin material whose resistance is low, and also a difference between the maximum value and the minimum value of a roller resistance at the time of rotating in a roller peripheral direction by applied voltage 100 V is set to be within 1.0 by logarithm. Also, the roller 1 is attached to this device. |
