Magnetic toner for developing electrostatic image, image forming

Details Magnetic toner for developing electrostatic image, image forming Magnetic toner for developing electrostatic image, image forming

1997-03-24

1998-05-12

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

430111, 430122, 399229, G03G 9083, G03G 1309, G03G 1509

Patent

active

057503028

ABSTRACT:
A magnetic toner for developing an electrostatic image has magnetic toner particles containing at least a binder resin and magnetic iron oxide particles. The magnetic iron oxide particles have been surface-treated with an aliphatic alcohol having carbon atoms of from 12 to 300 on the average. The magnetic toner has a weight average particle diameter of 13.5 .mu.m or smaller, and contains magnetic toner particles with particle diameters of 3.17 .mu.m or smaller in an amount not less than 1% by number as number-based percentage determined from number distribution.

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