| abstract |
(57) [Summary] [Structure] Weight average molecular weight (Mw) and number average molecular weight (M n) ratio (Mw / Mn) of 20 or more, styrene-acrylic resin, 0.5 to 5% by weight of magnetic powder with respect to the toner base, and 0.05 to 1% by weight of charge control with respect to the toner base. Toner for developing an electrostatic charge image, which is obtained by adding and mixing 0.05 to 2% by weight of magnetic powder to a toner base containing an agent, a colorant and a polyolefin, and the toner and the carrier. Developer and image forming method using these. [Effect] Excellent image quality can be maintained for a long period of time. |