Mita Industrial Co., Ltd.

Shunsuke Ogami

Takahiko Kimura

Masanori Fujii

Hidenori Asada

Hiroshi Komata

Atsushi Yamaguchi

Kiminori Umeda

Disclosed is a toner for the electrophotography, which comprises as a main component a styrene/acrylic copolymer having at least two molecular weight distribution peaks, the molecular weight (Mw) of the peak on the lowest molecular weight side being lower than 13000, wherein the toner contains a charge controlling agent dispersed therein at a concentration of at least 0.3% by weight and the charge controlling agent has such a particle size distribution that the area ratio of particles having a particle size larger than 2.5 .mu.m is at least 80% based on the section of the toner. If this toner is used, the fixing-possible temperature can be broadened while increasing the fixing ratio without reduction of the performances of the toner.

Growing community of inventors

Hirakata, Japan

Shunsuke Ogami