Title:
NEGATIVELY CHARGEABLE TONER FOR ONE-COMPONENT DEVELOPMENT AND ONE-COMPONENT DEVELOPING METHOD
Document Type and Number:
Japanese Patent JP3733706
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a negatively chargeable toner suitable for such a developing method that a toner is passed through between a developing sleeve and a regulating blade under pressure to form a thin layer of the charged toner on the sleeve, and excellent in rising property for electrification of the toner, the uniformity of charge amt. and environmental stability.
SOLUTION: This toner is suitable for such a one-component developing method that a toner is supplied to the surface of a toner carrying body and charged by triboelectrification to form a toner thin layer on the carrying body by a regulating member and that the toner layer is used to develop an electrostatic latent image. The toner contains inorg. fine particles externally added. The inorg. fine particles are preliminarily treated with a hydrophobic agent and a silane coupling agent having cationic groups and/or silicone oil having cationic groups, and the contact blow-off charge amt. (Q) of the particles with an iron oxide powder satisfies the relation of -800<Q<0 μC/g.
Inventors:
Masahiro Yasuno
Hiroyuki Fukuda
Hiroyuki Fukuda
Application Number:
JP23423897A
Publication Date:
January 11, 2006
Filing Date:
August 29, 1997
Export Citation:
Assignee:
Konica Minolta Business Technologies Co., Ltd.
International Classes:
G03G9/08; G03G9/097; G03G13/08; G03G15/01; G03G15/08; (IPC1-7): G03G9/08; G03G9/097; G03G15/01; G03G15/08
Domestic Patent References:
| JP3216663A | ||||
| JP8194330A | ||||
| JP62291666A | ||||
| JP6222609A | ||||
| JP9068823A |
Attorney, Agent or Firm:
Aoyama Aoi
Kitahara Yasuhiro
Kitahara Yasuhiro