A toner including toner particles; and external additives including a fatty acid metal salt having an average primary particle diameter of from 0.5 to 1.5 .mu.m; a positively chargeable particulate inorganic material; and a negatively chargeable particulate inorganic material. An image forming apparatus including a photoreceptor bearing an electrostatic image, and a center feed developing device configured to develop the electrostatic image with a developer including the toner to form a toner image, and a transfer device configured to transfer the toner image onto a receiving material preferably fed at a speed of from 500 to 1700 mm/s. An image forming method including forming an electrostatic image, developing the electrostatic image with the center feed developing device using the toner to form a toner image, and transferring the toner image onto a receiving material preferably fed at a speed of from 500 to 1700 mm/s.

 
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< TONER FOR ELECTROPHOTOGRAPHY

> ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE USING THE SAME

> MIXTURE OF BISAMINE COMPOUNDS, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD FOR FORMING IMAGE, AND IMAGE FORMING APPARATUS

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