Patent Number: 6,480,690

Title: Developing agent and image forming apparatus

Abstract: Added to magnetic toner particles are 0.5 to 5% by weight based on the total weight of the toner particles of a magnetic powder and 0.01 to 0.5% by weight based on the total weight of the toner particles of stearate particles having an average particle diameter of 1 .mu.m to 5 .mu.m.

Inventors: Ieda; Osamu (Kawasaki, JP)

Assignee: Toshiba Tec Kabushiki Kaisha

International Classification: G03G 9/083 (20060101); G03G 9/097 (20060101); G03G 015/09 ()

Expiration Date: 11/12/2019