Oliff & Berridge, PLC
Toner for the development of electrostatic image, process for the preparation thereof, developer for the development of electrostatic image and process for the formation of image
The foregoing problem is solved with a toner for the development of an electrostatic image obtained by externally adding agglomerated particles to toner particles containing a binder resin and a colorant, characterized in that the agglomerated particles are made of (i) a particulate resin alone, (ii) a particulate lubricant alone or (iii) at least two particulate materials selected from the group consisting of particulate resin, particulate lubricant and inorganic particulate material and have a shape factor of 130 or more and a volume-average particle diameter of from 0.5 &mgr;m to 10 &mgr;m.
Fuji Xerox Co., Ltd.
G G
G03G G03G
inventional inventional
Hideo Hisae Masaaki Yasuo
Maehata Yoshizawa Suwabe Matsumura