EP 0479285 B1 19970312 - Electrophotographic toner
Title (en)
Electrophotographic toner
Title (de)
Elektrophotographischer Toner
Title (fr)
Toner électrophotographique
Publication
Application
Priority
- JP 5272491 A 19910318
- JP 26882090 A 19901005
Abstract (en)
[origin: EP0479285A1] The electrophotographic toner in accordance with the present invention comprises a binder resin, a coloring agent, an electric charge controlling agent and a release agent, said electric charge controlling agent being represented by the following general formula (1): <CHEM> (wherein R<1>, R<2>, R<3>, R<4>, Y and Z<+> are defined as in the specification), said electric charge controlling agent having a pH value in a range from 3 to 5. With the use of the toner of the present invention, stable images can be reproduced with toner scattering effectively prevented.
IPC 1-7
IPC 8 full level
G03G 9/09 (2006.01); G03G 9/097 (2006.01)
CPC (source: EP KR)
G03G 9/08 (2013.01 - KR); G03G 9/091 (2013.01 - EP); G03G 9/09783 (2013.01 - EP)
Citation (examination)
EP 0393479 A2 19901024 - HODOGAYA CHEMICAL CO LTD [JP]
Designated contracting state (EPC)
DE ES FR GB IT NL
DOCDB simple family (publication)
EP 0479285 A1 19920408; EP 0479285 B1 19970312; CA 2052571 A1 19920406; DE 69125083 D1 19970417; DE 69125083 T2 19971016; ES 2100916 T3 19970701; KR 920008541 A 19920528; KR 950001824 B1 19950303
DOCDB simple family (application)
EP 91116862 A 19911002; CA 2052571 A 19911001; DE 69125083 T 19911002; ES 91116862 T 19911002; KR 910017353 A 19911004