Title:
ELECTROSTATIC CHARGE IMAGE DEVELOPER AND ELECTROSTATIC CHARGE IMAGE DEVELOPING METHOD USING THE SAME
Document Type and Number:
Japanese Patent JP3639382
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an electrostatic charge image developed to obtain a high quality image without deposition of a carrier and to provide an electrostatic developing method using this developer.
SOLUTION: The electrostatic charge image developer is produced by mixing a magnetic carrier with a magnetic toner containing a binder resin and a magnetic powder as the essential components. The volume specific resistance of the magnetic carrier is controlled to ≥109Ωcm, and the average particle diameter of the magnetic carrier is 0.5 to 6 times as the average particle diameter of the magnetic toner. The magnetization σ1000c of the magnetic carrier is controlled to 0.5 to 4 times as the magnetization σ1000t of the magnetic toner. The absolute difference between the triboelectric charge amt. Qc of the magnetic carrier and Qt of the magnetic toner is controlled to satisfy &verbar Qt-Qc&verbar =5 to 50μC/g.
Inventors:
Masahisa Ochiai
Asana Masumi
Asana Masumi
Application Number:
JP18439996A
Publication Date:
April 20, 2005
Filing Date:
July 15, 1996
Export Citation:
Assignee:
Neomax corporation
International Classes:
G03G9/083; G03G9/10; G03G9/107; G03G15/08; G03G15/09; (IPC1-7): G03G9/10; G03G9/083; G03G15/08; G03G15/09
Domestic Patent References:
| JP6083116A | ||||
| JP8022152A | ||||
| JP6236076A |
Attorney, Agent or Firm:
Yutaka Morita