作者: Yoko Yamamoto , Yuki Okuyama , Tadashi Kaneko , Satoru Ikeuchi , Mitsutaka Arai
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摘要: In a method of developing an electrostatic latent image formed on image-carrying member with developer comprising magnetic carrier and toner in non-contact manner under application oscillating electric field to development region, the improvement surface said is covered insulating material, magnetization (M) when measured 1000 Oersted weight average diameter (R) same expressed terms micro meter satisfy following relation: 30≦M≦-0.8 R+150 (wherein 10≦R≦150).