Title:
CARRIER FOR ELECTROSTATIC IMAGE DEVELOPMENT AND ITS PRODUCTION AND IMAGE FORMING METHOD
Document Type and Number:
Japanese Patent JP3298032
Kind Code:
B2
Abstract:
PURPOSE: To provide a carrier for electrostatic image development which does not contain fine powder of unshaped magnetic materials being the cause for wear of a cleaning member and rubbing flaws of a photoreceptor surface and a process for producing such carrier and an image forming method by this carrier.
CONSTITUTION: This carrier for electrostatic image development is obtd. by a dry process coating method for forming resin coating layers consisting of resin particulates for coating on the surfaces of magnetic material particles by imparting repetitive mechanical impact to a mixture composed of the magnetic material particles and the resin particulates for coating. The magnetic maternal particles of the carrier consist of the ferrite component expressed by compsn. formula: (MO)x(Fe2O3)y [M denotes Zn and Cu, x, y respectively denote molar numbers.] and contains 0.9 to 3.5wt.% Fe2+.
Inventors:
Makoto Kawano
Ken Ohmura
Tomoyasu Umeno
Hiroyuki Kozuru
Ken Ohmura
Tomoyasu Umeno
Hiroyuki Kozuru
Application Number:
JP716294A
Publication Date:
July 02, 2002
Filing Date:
January 26, 1994
Export Citation:
Assignee:
Konica Corporation
International Classes:
G03G9/107; G03G9/113; G03G15/08; G03G15/09; G03G21/10; (IPC1-7): G03G9/107; G03G9/113; G03G15/08; G03G15/09; G03G21/10
Domestic Patent References:
| JP607439A | ||||
| JP287168A | ||||
| JP580590A | ||||
| JP545935A |