| 摘要 |
PROBLEM TO BE SOLVED: To provide a developer quantity control blade making an excellent image obtainable, and preventing the image defect from occurring even after a printing endurance, even when the image formation processing in the image forming device of an electrophotographic system or an electrostatic recording is made speeding up. SOLUTION: In this developer quantity control blade controlling the developer quantity carried on a periphery of the developer carrier, the developer quantity control blade provided with at least, an elastic body layer on a surface held in contact with the above developer carrier, is making the dynamic loss tangent tanδat the normal temp. of the elastic body 0.02 to 0.5 at the frequency 0.5 to 19.5 Hz. |
