Title:
電子写真用トナー
Document Type and Number:
Japanese Patent JP7142542
Kind Code:
B2
Abstract:
To provide electrophotographic toner capable of maintaining excellent image density from an initial stage to a final stage of printing.SOLUTION: Electrophotographic toner contains toner particles and an external additive. The external additive contains polymer beads L and polymer beads S having charging polarity different from that of the toner particles. A number average particle diameter of the polymer beads L is larger than that of the polymer beads S. A shape index of the polymer beads L is 1.3 or more, and the shape index of the polymer beads S is less than 1.3.SELECTED DRAWING: None
Inventors:
Watanabe Shogo
Application Number:
JP2018208284A
Publication Date:
September 27, 2022
Filing Date:
November 05, 2018
Export Citation:
Assignee:
Kao Corporation
International Classes:
G03G9/097
Domestic Patent References:
| JP2004258145A |
Attorney, Agent or Firm:
Yoshinori Hosoda