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Patent Searching and Data


Title:
ELECTROPHOTOGRAPHIC CARRIER
Document Type and Number:
Japanese Patent JPH0561261
Kind Code:
A
Abstract:

PURPOSE: To provide a carrier capable of forming a developer superior in durability, resistance to producing a spent toner, and fluidity, rapid in rising of acceptance potential together producing a stable image, and small in leakage of current in the case of applying bias voltage and attachment of the carrier to a photosensitive body.

CONSTITUTION: The electrophotographic carrier is coated with a resin composition having a domain-matrix structure and containing an aliphatic metal salt, the domain particles are characterized by having an average particle diameter of ≥5μm, the resin forming the domain is characterized by having carboxylic groups, the glass transition point Tg1 of 20-70°C, and an acid value of ≥15, the resin constituting the matrix is characterized by having substantially no carboxylic group and a glass transition point Tg2 of 50-80°C and an acid value of ≤10, and Tg2≥Tg1.


Inventors:
SATO YOSHIHIRO
IKEDA TAKESHI
Application Number:
JP25021391A
Publication Date:
March 12, 1993
Filing Date:
September 04, 1991
Export Citation:
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Assignee:
CANON KK
International Classes:
G03G9/113; (IPC1-7): G03G9/113
Attorney, Agent or Firm:
Yoshio Toyota (1 outside)