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Title:
ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2002311641
Kind Code:
A
Abstract:

To provide an image forming toner ensuring low temperature fixability and a fixing temperature range, excellent in hot preservability, biochemical safety, environmental stability, stability of electrostatic charge and pulverizability, free of resin curing by crosslinking reactions of an amine dye or pigment and amine compounds contained in an antistatic agent, etc., with epoxy groups in a toner binder resin and not causing image shift to a vinyl chloride resin sheet and to provide an image forming method using the toner and an image forming apparatus.

In the image forming black toner containing at least a colorant, a release agent and a binder resin, the binder resin comprises a polyester resin and a polyol resin which are incompatible with each other and have a island-in sea type phase separated structure.


Inventors:
SAWADA TOYOSHI
SUZUKI MASANORI
WATANABE YOICHIRO
YAMASHITA MASAHIDE
KOBAN AKIHIRO
SHIRAISHI KEIKO
KATO MITSUTERU
Application Number:
JP2001110827A
Publication Date:
October 23, 2002
Filing Date:
April 10, 2001
Export Citation:
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Assignee:
RICOH KK
International Classes:
G03G9/08; G03G9/087; G03G9/09; (IPC1-7): G03G9/087; G03G9/08; G03G9/09
Attorney, Agent or Firm:
Hidehiko Takei