Process for producing electrophotographic toner comprising micro

Details Process for producing electrophotographic toner comprising micro Process for producing electrophotographic toner comprising micro

Filed on

1988-03-29

Date issued

1990-02-13

Examiner

Welsh, J. David

Patent Class

Radiation imagery chemistry: process, composition, or product th

SubClass

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

SubSubClass

Process of making developer composition

Other Related Categories

430138, 264 15, G03G 908

Type

Patent

Status

active

Patent number

049006479

Description

ABSTRACT:
A toner for producing electrostatic latent images is produced by smoothing classified resinous particles so that the ratio of the smallest diameter to the largest diameter thereof is 0.70-0.90, mixing the smoothed base particles (A) with modifier particles (B) to attach the modifier particles (B) to the surfaces of the base particles (A), and fixing the modifier particles (B) to the base particles (A) under the action of a mechanical impact force.

REFERENCES:
patent: 4233387 (1980-11-01), Mammino
patent: 4837107 (1989-06-01), Axelsson et al.

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