Color mixing agent and imaging method

Application Number: 00105305
Application Date: 2000.01.21
Publication Number: 1264852
Publication Date: 2000.08.30
Priority Information: 1999/1/21 JP 012569/1999
International: G03G9/08;G03G13/00
Applicant(s) Name: Canon K. K.
Inventor(s) Name: Kohori Naokuni;Segawa Hirohide;Fujimoto Masami
Patent Agency Code: 11038
Patent Agent: liu jinhui
Abstract An electrophotographic toner showing good cleanability and is suitable for use in developing an electrostatic latent image formed on an amorphous-silicon photosensitive member is provided. The toner includes toner particles each comprising a binder resin and a colorant, and inorganic fine powder A. The inorganic fine powder A contains 88.0 – 97.0 wt. % of a rare earth compound comprising a rare earth oxide. The rare earth compound contains 40.0 – 65.0 wt. % of Ce (calculated as CeO2), 25.0 – 45.0 wt. % of La (calculated as La2O3), 1.0 – 10.0 wt. % of Nd (calculated as Nd2O3) and 1.0 – 10.0 wt. % of Pr (calculated as Pr6O11). The rare earth compound contains further a fluorinated rare earth compound in such an amount as to provide the inorganic fine powder A with a fluorine content of 2.0 – 11.0 wt. %.